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&216(59$7,21&$7(*25,(6  EPBC Act (1999) Threatened Fauna Categories

Threatened fauna may be listed under Section 178 of the Environment Protection and Conservation Act 1999 (EPBC Act) in any one of the following categories:

Category Code Description There is no reasonable doubt that the last Extinct E member of the has died. A species (a) is known only to survive in cultivation, in captivity or as a naturalised population well outside its past range; or *Extinct in the wild EW (b) has not been recorded in its known and/or expected habitat, at appropriate seasons, anywhere in its past range, despite exhaustive surveys over a time frame appropriate to its life cycle and form. A species is facing an extremely high risk of *Critically Endangered CE extinction in the wild in the immediate future. A species: (a) is not critically endangered; and *Endangered EN (b) is facing a very high risk of extinction in the wild in the near future. A species (a) is not critically endangered or endangered; *Vulnerable VU and (b) is facing a high risk of extinction in the wild in the medium-term future. A species is the focus of a specific conservation program the cessation of which Conservation Dependent CD would result in the species becoming vulnerable, endangered or critically endangered (a) all migratory species that are: (i) native species; and (ii) from time to time included in the appendices to the Bonn Convention; and (b) all migratory species from time to time *Migratory Migratory included in annexes established under JAMBA, CAMBA and ROKAMBA; and (c) all native species from time to time identified in a list established under, or an instrument made under, an international agreement approved by the Minister. Species in the list established under s248 of Marine Ma the EPBC Act Note: Only species in those categories marked with an asterix are matters of national environmental significance (NES) under the EPBC Act.

Wildlife Conservation (Specially Protected Fauna) Notice 2018 Categories

Published as Specially Protected under the Wildlife Conservation Act 1950, and listed under Schedules 1 to 7 of the Wildlife Conservation (Specially Protected Fauna) Notice.

The assessment of the conservation status of these species is based on their national extent and ranked according to their level of threat using IUCN Red List categories and criteria as detailed below.

Category Code Description Schedule 1 (S1) Threatened species considered to be facing an extremely high risk of Critically CR extinction in the wild in the immediate future. Endangered species Schedule 2 (S2) Threatened species considered to be facing a very high risk of EN Endangered extinction in the wild in the near future. species Schedule 3 (S3) Threatened species considered to be facing a high risk of VU Vulnerable extinction in the wild in the medium-term future. species Schedule 4 Species which have been adequately searched for and there is (S4) EX no reasonable doubt that the last member of the species has Presumed died. extinct species Schedule 5 Fauna that periodically or occasionally visit or an (S5) external Territory or the exclusive economic zone; or that Migratory birds are subject to an agreement between the government of protected MI Australia and the governments of Japan (JAMBA), China under an (CAMBA) and The Republic of Korea (ROKAMBA), and the international Bonn Convention, relating to the protection of migratory birds. agreement Schedule 6 (S6) Fauna that is of special Fauna of special conservation need being species dependent conservation CD on ongoing conservation intervention to prevent it becoming need as eligible for listing as threatened. conservation dependent fauna Schedule 7 (S7) Fauna otherwise in need of special protection to ensure their Other specially OS conservation. protected fauna.

Western Australian DBCA Priority Fauna Categories

Possibly threatened species that do not meet survey criteria, or are otherwise data deficient, are added to the Priority Fauna under Priorities 1, 2 or 3. These three categories are ranked in order of priority for survey and evaluation of conservation status so that consideration can be given to their declaration as threatened flora or fauna.

Species that are adequately known, are rare but not threatened, or meet criteria for near threatened, or that have been recently removed from the threatened species or other specially protected fauna lists for other than taxonomic reasons, are placed in Priority 4. These species require regular monitoring.

Assessment of Priority codes is based on the Western Australian distribution of the species, unless the distribution in WA is part of a contiguous population extending into adjacent States, as defined by the known spread of locations.

Category Code Description Species that are known from one or a few locations (generally five or less) which are potentially at risk. All occurrences are either: very small; or on Priority 1 lands not managed for conservation, e.g. agricultural or pastoral lands, urban (P1) areas, road and rail reserves, gravel reserves and active mineral leases; or Poorly P1 otherwise under threat of or degradation. Species may be Known included if they are comparatively well known from one or more locations but Species. do not meet adequacy of survey requirements and appear to be under immediate threat from known threatening processes. Such species are in urgent need of further survey. Species that are known from one or a few locations (generally five or less), some of which are on lands managed primarily for nature conservation, e.g. Priority 2 national parks, conservation parks, nature reserves and other lands with (P2) secure tenure being managed for conservation. Species may be included if Poorly P2 they are comparatively well known from one or more locations but do not Known meet adequacy of survey requirements and appear to be under threat from Species. known threatening processes. Such species are in urgent need of further survey. Species that are known from several locations and the species does not Priority 3 appear to be under imminent threat, or from few but widespread locations (P3) with either large population size or significant remaining areas of apparently Poorly P3 suitable habitat, much of it not under imminent threat. Species may be Known included if they are comparatively well known from several locations but do Species. not meet adequacy of survey requirements and known threatening processes exist that could affect them. Such species are in need of further survey. (a) Rare: Species that are considered to have been adequately surveyed, or for which sufficient knowledge is available, and that are considered not Priority 4 currently threatened or in need of special protection, but could be if (P4) present circumstances change. These species are usually represented Rare, Near on conservation lands. Threatened P4 and other (b) Near Threatened: Species that are considered to have been adequately species in surveyed and that are close to qualifying for Vulnerable, but are not listed need of as Conservation Dependent. monitoring. (c) Species that have been removed from the list of threatened species during the past five years for reasons other than .

*Species includes all taxa (plural of taxon - a classificatory group of any taxonomic rank, e.g. a family, , species or any infraspecific category i.e. or variety, or a distinct population). IUCN Red List Threatened Species Categories

The IUCN Red List of Threatened Species™ is a checklist of taxa that have undergone an extinction risk assessment using the IUCN Red List Categories and Criteria.

Categories are summarized below.

Category Code Description Taxa for which there is no reasonable doubt that Extinct EX the last individual has died. Taxa which is known only to survive in cultivation, in captivity or and as a naturalised population well Extinct in the outside its past range and it has not been EW Wild recorded in known or expected habitat despite exhaustive survey over a time frame appropriate to its life cycle and form. Critically Taxa facing an extremely high risk of extinction in CR Endangered the wild. Taxa facing a very high risk of extinction in the Endangered EN wild.

Vulnerable VU Taxa facing a high risk of extinction in the wild.

Taxa which has been evaluated but does not Near NT qualify for CR, EN or VU now but is close to Threatened qualifying or likely to qualify in the near future. Taxa which has been evaluated but does not Least Concern LC qualify for CR, EN, VU, or NT but is likely to qualify for NT in the near future. Taxa for which there is inadequate information to make a direct or indirect assessment of its risk of Data Deficient DD extinction based on its distribution and/or population status.

Not Evaluated NE Taxa which has not been evaluated.

A full list of categories and their meanings are available at: http://www.iucnredlist.org/technical-documents/categories-and-criteria/2001-categories- criteria FAUNA ASSESSMENT – LOT 101 WALLCLIFFE ROAD PREVELLY – MAY 2019 – V2 

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3DJHRI FAUNA ASSESSMENT – LOT 101 WALLCLIFFE ROAD PREVELLY – MAY 2019 – V2 

$33(1',;& '%&$ (3%&'$7$%$6(6($5&+5(68/76 NatureMap - Wallcliffe House Created By Greg Harewood on 15/04/2019

Kingdom Animalia Current Names Only Yes Core Datasets Only Yes Method 'By Circle' Centre 114° 59' 43'' E,33° 58' 16'' S Buffer 20km Group By Species Group

Species Group Species Records 11 416 151 7603 Fish 46 94 Invertebrate 215 1934 Mammal 44 917 37 275 TOTAL 504 11239

Name ID Species Name Naturalised Conservation Code 1Endemic To Query Area Amphibian 1. 25398 Crinia georgiana (Quacking ) 2. 25399 Crinia glauerti (Clicking Frog) 3. 25401 Crinia pseudinsignifera (Bleating Froglet) 4. 25403 alba (White-bellied Frog) T 5. 25404 Geocrinia leai (Ticking Frog) 6. 25410 Heleioporus eyrei (Moaning Frog) 7. 25411 Heleioporus inornatus (Whooping Frog) 8. 25415 Limnodynastes dorsalis (Western Banjo Frog) 9. 25378 Litoria adelaidensis (Slender Tree Frog) 10. 25388 Litoria moorei (Motorbike Frog) 11. 25419 Metacrinia nichollsi (Forest Toadlet) Bird 12. 24260 Acanthiza apicalis (Broad-tailed Thornbill, ) 13. 24261 Acanthiza chrysorrhoa (Yellow-rumped Thornbill) 14. 24262 Acanthiza inornata (Western Thornbill) 15. 24560 Acanthorhynchus superciliosus (Western Spinebill) 16. 25535 Accipiter cirrocephalus (Collared Sparrowhawk) 17. 24281 Accipiter cirrocephalus subsp. cirrocephalus (Collared Sparrowhawk) 18. 25536 Accipiter fasciatus (Brown Goshawk) 19. 41323 Actitis hypoleucos (Common Sandpiper) IA 20. 25544 Aegotheles cristatus (Australian Owlet-nightjar) 21. 24301 Aegotheles cristatus subsp. cristatus (Australian Owlet-nightjar) 22. 24312 Anas gracilis (Grey Teal) 23. 24313 Anas platyrhynchos (Mallard) 24. 24316 Anas superciliosa (Pacific Black Duck) 25. 47414 Anhinga novaehollandiae (Australasian Darter) 26. 24561 Anthochaera carunculata () 27. 24562 Anthochaera lunulata (Western Little Wattlebird) 28. 24599 Anthus australis subsp. australis (Australian Pipit) 29. 24285 Aquila audax (Wedge-tailed Eagle) 30. 41326 Ardenna carneipes (Flesh-footed Shearwater, Fleshy-footed Shearwater) T 31. 25566 Artamus cinereus (Black-faced Woodswallow) 32. 24353 Artamus cyanopterus (Dusky Woodswallow) 33. 24358 Atrichornis clamosus (Noisy Scrub-bird, tjimiluk) T 34. Barnardius zonarius 35. 24319 Biziura lobata (Musk Duck) 36. 24359 Burhinus grallarius (Bush Stone-curlew) 37. 25713 Cacatua galerita (Sulphur-crested Cockatoo) 38. 24723 Cacatua pastinator subsp. butleri (Butler's Corella) 39. 25716 Cacatua sanguinea (Little Corella)

NatureMap is a collaborative project of the Department of Parks and Wildlife and the Western Australian Museum.

Page 1 Name ID Species Name Naturalised Conservation Code 1Endemic To Query Area 40. 25598 Cacomantis flabelliformis (Fan-tailed ) 41. 24427 Cacomantis flabelliformis subsp. flabelliformis (Fan-tailed Cuckoo) 42. 42307 Cacomantis pallidus (Pallid Cuckoo) 43. 24780 Calidris alba (Sanderling) IA 44. 24788 Calidris ruficollis (Red-necked Stint) IA 45. 25717 Calyptorhynchus banksii (Red-tailed Black-Cockatoo) 46. 24731 Calyptorhynchus banksii subsp. naso (Forest Red-tailed Black Cockatoo) T 47. 24733 Calyptorhynchus baudinii (Baudin's Cockatoo, White-tailed Long-billed Black T Cockatoo) 48. 24734 Calyptorhynchus latirostris (Carnaby's Cockatoo, White-tailed Short-billed Black T Cockatoo) 49. 48400 Calyptorhynchus sp. (white-tailed black cockatoo) T 50. 25575 Charadrius leschenaultii (Greater Sand Plover) T 51. 24377 Charadrius ruficapillus (Red-capped Plover) 52. 24321 Chenonetta jubata (Australian Wood Duck, Wood Duck) 53. Chroicocephalus novaehollandiae 54. 24432 Chrysococcyx lucidus subsp. plagosus (Shining Bronze Cuckoo) 55. 24288 Circus approximans (Swamp Harrier) 56. 25675 Colluricincla harmonica (Grey Shrike-thrush) 57. 24399 Columba livia (Domestic Pigeon) Y 58. 25568 Coracina novaehollandiae (Black-faced Cuckoo-shrike) 59. 25592 Corvus coronoides () 60. 24417 Corvus coronoides subsp. perplexus (Australian Raven) 61. 25595 Cracticus tibicen (Australian Magpie) 62. 25596 Cracticus torquatus (Grey Butcherbird) 63. 30901 Dacelo novaeguineae (Laughing Kookaburra) Y 64. 25673 Daphoenositta chrysoptera (Varied Sittella) 65. 24439 Dasyornis broadbenti subsp. litoralis (Rufous Bristlebird, Rufous Bristlebird (SW WA)) X 66. 24470 Dromaius novaehollandiae (Emu) 67. Egretta novaehollandiae 68. Elanus axillaris 69. 47937 Elseyornis melanops (Black-fronted Dotterel) 70. Eolophus roseicapillus 71. 24651 Eopsaltria australis subsp. griseogularis (Western Yellow Robin) 72. 24652 Eopsaltria georgiana (White-breasted Robin) 73. 24567 Epthianura albifrons (White-fronted Chat) 74. 25744 Eudyptes chrysocome (Rockhopper Penguin) 75. 25621 Falco berigora (Brown Falcon) 76. 24471 Falco berigora subsp. berigora (Brown Falcon) 77. 25622 Falco cenchroides (Australian Kestrel, Nankeen Kestrel) 78. 25623 Falco longipennis (Australian Hobby) 79. 25624 Falco peregrinus (Peregrine Falcon) S 80. 24475 Falco peregrinus subsp. macropus (Australian Peregrine Falcon) S 81. 25677 Falcunculus frontatus (Crested Shrike-tit) 82. 25727 Fulica atra (Eurasian Coot) 83. 25530 fusca (Western Gerygone) 84. 24443 Grallina cyanoleuca (Magpie-lark) 85. 25627 Haematopus fuliginosus (Sooty Oystercatcher) 86. 24487 Haematopus longirostris (Pied Oystercatcher) 87. 24295 Haliastur sphenurus (Whistling Kite) 88. 24296 Hamirostra isura (Square-tailed Kite) 89. 47965 Hieraaetus morphnoides (Little Eagle) 90. 24491 Hirundo neoxena (Welcome ) 91. 48587 Hydroprogne caspia (Caspian Tern) IA 92. 25562 Ixobrychus flavicollis (Black Bittern) 93. 24511 Larus novaehollandiae subsp. novaehollandiae (Silver Gull) 94. 25638 Larus pacificus (Pacific Gull) 95. 24557 Leipoa ocellata (Malleefowl) T 96. 25661 Lichmera indistincta (Brown ) 97. 24582 Lichmera indistincta subsp. indistincta (Brown Honeyeater) 98. Lophoictinia isura 99. 25650 Malurus elegans (Red-winged Fairy-wren) 100. 25654 Malurus splendens (Splendid Fairy-wren) 101. 25663 Melithreptus brevirostris (Brown-headed Honeyeater) 102. 24587 Melithreptus chloropsis (Western White-naped Honeyeater) 103. 24598 Merops ornatus (Rainbow Bee-eater) 104. Microcarbo melanoleucos 105. 48008 Morus serrator (Australasian Gannet) 106. 25610 Myiagra inquieta (Restless Flycatcher) 107. 24738 Neophema elegans (Elegant Parrot)

NatureMap is a collaborative project of the Department of Parks and Wildlife and the Western Australian Museum.

Page 2 Name ID Species Name Naturalised Conservation Code 1Endemic To Query Area 108. 24739 Neophema petrophila (Rock Parrot) 109. 25564 Nycticorax caledonicus (Rufous Night Heron) 110. 24407 Ocyphaps lophotes (Crested Pigeon) 111. 25680 Pachycephala rufiventris (Rufous Whistler) 112. 48591 Pandion cristatus (Osprey, Eastern Osprey) IA 113. 25681 Pardalotus punctatus (Spotted ) 114. 25682 Pardalotus striatus (Striated Pardalote) 115. 24630 Pardalotus striatus subsp. westraliensis (Striated Pardalote) 116. 24674 Pavo cristatus (Common Peafowl, Indian Peafowl) Y 117. 24648 Pelecanus conspicillatus (Australian Pelican) 118. 48061 Petrochelidon nigricans (Tree Martin) 119. 48066 Petroica boodang () 120. 25697 Phalacrocorax carbo (Great Cormorant) 121. 24667 Phalacrocorax sulcirostris (Little Black Cormorant) 122. 25699 Phalacrocorax varius (Pied Cormorant) 123. 24409 Phaps chalcoptera (Common Bronzewing) 124. 25587 Phaps elegans (Brush Bronzewing) 125. 48071 Phylidonyris niger (White-cheeked Honeyeater) 126. 24596 Phylidonyris novaehollandiae (New Holland Honeyeater) 127. 25720 Platycercus icterotis (Western Rosella) 128. 24745 Platycercus icterotis subsp. icterotis (Western Rosella) 129. 24747 Platycercus spurius (Red-capped Parrot) 130. 24750 Platycercus zonarius subsp. semitorquatus (Twenty-eight Parrot) 131. 25703 Podargus strigoides (Tawny Frogmouth) 132. 25722 Polytelis anthopeplus (Regent Parrot) 133. 25731 Porphyrio porphyrio (Purple Swamphen) 134. 24771 Porzana tabuensis (Spotless Crake) 135. 25579 Psophodes nigrogularis (Western Whipbird) T 136. 24388 Psophodes nigrogularis subsp. nigrogularis (Western Whipbird (western heath)) T 137. 24711 Puffinus assimilis subsp. assimilis (Little Shearwater) 138. Purpureicephalus spurius 139. 48096 Rhipidura albiscapa (Grey Fantail) 140. 25614 Rhipidura leucophrys (Willie Wagtail) 141. 25534 Sericornis frontalis (White-browed Scrubwren) 142. 24279 Sericornis frontalis subsp. maculatus (White-browed Scrubwren) 143. 30948 Smicrornis brevirostris (Weebill) 144. 24645 Stagonopleura oculata (Red-eared Firetail) 145. 24522 Sterna bergii (Crested Tern) 146. 25655 Stipiturus malachurus (Southern Emu-wren) 147. 24554 Stipiturus malachurus subsp. westernensis (Southern Emu-wren) 148. 25597 Strepera versicolor (Grey Currawong) 149. 25705 Tachybaptus novaehollandiae (Australasian Grebe, Black-throated Grebe) 150. 24331 Tadorna tadornoides (Australian Shelduck, Mountain Duck) 151. 34135 Thalassarche cauta (Shy Albatross) T 152. 34007 Thalassarche chlororhynchos (Atlantic Yellow-nosed Albatross) T 153. 44607 Thalassarche melanophris (Black-browed Albatross) T 154. 48597 Thalasseus bergii (Crested Tern) IA 155. 48135 Thinornis rubricollis (Hooded Plover, Hooded Dotterel) P4 156. 24845 Threskiornis spinicollis (Straw-necked Ibis) 157. 25549 Todiramphus sanctus (Sacred Kingfisher) 158. 25723 Trichoglossus haematodus (Rainbow Lorikeet) 159. 48147 Turnix varius (Painted Button-quail) 160. 25764 Tyto novaehollandiae (Masked Owl) 161. 24855 Tyto novaehollandiae subsp. novaehollandiae (Masked Owl (southwest)) P3 162. 25765 Zosterops lateralis (Grey-breasted White-eye, ) Fi s h 163. ? ? 164. Acanthaluteres vittiger 165. Acanthistius pardalotus 166. Aetapcus maculatus 167. Afurcagobius suppositus 168. Alabes brevis 169. Aracana aurita 170. Arripis georgiana 171. Arripis truttacea 172. Atherinosoma wallacei 173. Carassius auratus 174. Coris auricularis 175. Cristiceps australis 176. Dactylophora nigricans

NatureMap is a collaborative project of the Department of Parks and Wildlife and the Western Australian Museum.

Page 3 Name ID Species Name Naturalised Conservation Code 1Endemic To Query Area 177. Edelia vittata 178. 34028 Galaxias occidentalis (Western Minnow) 179. 34026 Galaxiella munda (mud minnow, western dwarf galaxias) T 180. 34030 Geotria australis (Pouched Lamprey) P3 181. Halichoeres brownfieldi 182. Helcogramma decurrens 183. Heteroclinus sp. 184. Heterodontus portusjacksoni 185. Hippocampus sp. 186. Histiophryne cryptacanthus 187. Lepidoblennius marmoratus 188. Lepidoperca occidentalis 189. Lissocampus runa 190. Meuschenia flavolineata 191. Meuschenia galii 192. Meuschenia hippocrepis 193. 34033 Nannatherina balstoni (Balston's Pygmy Perch) T 194. Nannoperca vittata 195. Naucrates ductor 196. Neopataecus waterhousii 197. Odax acroptilus 198. Oplegnathus woodwardi 199. Pelsartia humeralis 200. Pictilabrus laticlavius 201. Platycephalus sp. 202. Plectranthias alleni 203. Pseudogobius olorum 204. Pseudolabrus sp. 205. Pterygotrigla polyommata 206. Schuettea woodwardi 207. Scobinichthys granulatus 208. Siphonognathus beddomei Invertebrate 209. Acariformes sp. 210. Acritoptila globosa 211. Aeshnidae sp. 212. Akamptogonus novarae 213. Akamptogonus novarae? Y 214. Allothereua maculata 215. Alotanypus dalyupensis 216. Amphisopodidae sp. 217. Aname mainae 218. Aname tepperi 219. Ancylidae sp. 220. Arachnura higginsi 221. Araneus cyphoxis 222. Araneus eburneiventris 223. Araneus eburnus 224. Araneus senicaudatus 225. Archaeosynthemis leachii 226. Archaeosynthemis occidentalis 227. Archaeosynthemis spiniger 228. Archichauliodes sp. 229. Argiope trifasciata 230. Arkys walckenaeri 231. Arrenuridae sp. 232. Artoria cingulipes 233. Artoria flavimana 234. Artoria linnaei 235. Artoria taeniifera 236. Asadipus kunderang 237. Athericidae sp. 238. Aturidae sp. 239. Austracantha minax 240. Australomimetus diabolicus 241. Australomimetus tasmaniensis 242. Austroaeschna anacantha 243. 34110 Austroassiminea letha (Cape Leeuwin Freshwater Snail) T 244. Austrochiltonia sp. 245. Badumna microps

NatureMap is a collaborative project of the Department of Parks and Wildlife and the Western Australian Museum.

Page 4 Name ID Species Name Naturalised Conservation Code 1Endemic To Query Area 246. Baetidae sp. 247. Baiami tegenarioides 248. Baiami volucripes 249. Ballarra longipalpus 250. 47873 Bertmainius opimus (western pygmy trapdoor ) P3 251. Bibulmena kadjina 252. Bithyniidae sp. 253. Botryocladius freemani 254. Caenidae sp. 255. Calymmachernes angulatus 256. Carabidae sp. 257. Ceratopogonidae sp. 258. Cercophonius granulosus 259. Cercophonius sulcatus 260. Chaussieria warregense 261. 33939 Cherax cainii (Marron) 262. Cherax crassimanus 263. Cherax destructor 264. Cherax quinquecarinatus 265. 33940 Cherax tenuimanus (Margaret River hairy marron, Margaret River Marron) T 266. Chironominae sp. 267. Chironomus aff. alternans (V24) (CB) 268. Chironomus tepperi 269. Cladocera (non-daphniidae) 270. Cladocera (unident.) 271. Coenagrionidae sp. 272. Conicochernes crassus 273. Copepoda sp. 274. Corduliidae sp. 275. Corixidae sp. 276. Cormocephalus aurantiipes 277. Cormocephalus hartmeyeri 278. Cormocephalus strigosus 279. Corydalidae sp. 280. Cricotopus 'parbicinctus' 281. Crustulina bicruciata 282. Culicidae sp. 283. sp. 284. Cyclosa trilobata 285. Dicrotendipes sp. A (V47) (SAP) 286. Dugesiidae sp. 287. Dytiscidae sp. 288. Emertonella maga 289. Empididae sp. 290. Enchytraeidae sp. 291. 33945 Engaewa pseudoreducta (Margaret River Burrowing Crayfish) T 292. Eodelena lapidicola 293. Ephydridae sp. 294. Eriophora biapicata 295. Geogarypus taylori 296. Glossiphoniidae sp. 297. Gripopterygidae sp. 298. Gyrinidae sp. 299. Harrisius sp. B (SFM) 300. Hemicorduliidae sp. 301. Henicops dentatus 302. Holasteron aspinosum 303. Hydraenidae sp. 304. Hydrobiosidae sp. 305. Hydrometridae sp. 306. Hydrophilidae sp. 307. Hydropsychidae sp. 308. Hydroptilidae sp. 309. Hyriidae sp. 310. Isopeda leishmanni 311. Ixodes australiensis 312. Karaops ellenae 313. 33980 Kawaniphila pachomai (Grey Vernal Katydid (southwest), cricket) P1 314. Kiefferulus intertinctus 315. Lagynochthonius australicus

NatureMap is a collaborative project of the Department of Parks and Wildlife and the Western Australian Museum.

Page 5 Name ID Species Name Naturalised Conservation Code 1Endemic To Query Area 316. Lampona brevipes 317. Lampona cylindrata 318. Lamponella ainslie 319. Latrodectus hasseltii 320. Lectrides parilis 321. Lepidoptera (non-pyralid) 322. Leptoceridae sp. 323. Leptoperla australica 324. Leptophlebiid genus S sp. AV1 325. Leptophlebiidae sp. 326. Libellulidae sp. 327. Lycosa gilberta 328. Lymnaeidae sp. 329. Maratus pavonis 330. Megaloptera sp. 331. Megapodagrionidae sp. 332. Mesoveliidae sp. 333. Microvelia (Austromicrovelia) australiensis 334. Microvelia sp. 335. Missulena granulosa 336. Mituliodon tarantulinus 337. Naididae sp. 338. Neboissophlebia occidentalis 339. Nematoda sp. 340. Newmanoperla exigua 341. Notalina sp. 342. Notalina sp. AV15 (PSW) 343. Notonectidae sp. 344. Notoperata tenax 345. Nousia sp. AV16 346. Nunciella aspera 347. Nyungara bunni 348. Ochthebius sp. 349. Oligochaeta sp. 350. Oniscidae sp. 351. Orthocladiinae 'woodminer' (SAP) 352. Orthocladiinae sp. 353. Ostracoda (unident.) 354. Oxidae sp. 355. Oxyopes gracilipes 356. Palaemonidae sp. 357. Paralimnophyes pullulus (V42) 358. Paramerina levidensis 359. Parastacidae sp. 360. Pentasteron intermedium 361. Perthiidae sp. 362. Pholcus phalangioides 363. Phreatoicidae sp. 364. Phreodrilidae sp. 365. Physidae sp. 366. Pinkfloydia harveii 367. Planorbidae sp. 368. Polypedilum nr. convexum (SAP) 369. Polypedilum watsoni 370. Prionosternum nitidiceps 371. Protochelifer cavernarum 372. Pseudotyrannochthonius giganteus 373. Pyralidae sp. 374. Raveniella peckorum 375. Rheotanytarsus sp. (SFM) 376. Rheotanytarsus trivittatus 377. Rheotanytarsus underwoodi 378. Richardsonianidae sp. 379. Riekoperla occidentalis 380. Riethia v4 381. Sciomyzidae sp. 382. Scirtidae sp. 383. Scolopendra laeta 384. Servaea spinibarbis 385. Simaetha tenuior

NatureMap is a collaborative project of the Department of Parks and Wildlife and the Western Australian Museum.

Page 6 Name ID Species Name Naturalised Conservation Code 1Endemic To Query Area 386. Simuliidae sp. 387. Siphonotus flavomarginatus 388. Skusella/"V12 ex-WA" (Cranston) 389. Sphaeriidae sp. 390. Spinicrus minimus 391. Spinicrus porongorupensis 392. Staphylinidae sp. 393. Steatoda grossa 394. Sternopriscus sp. 395. Storena formosa 396. Storosa tetrica 397. Stratiomyidae sp. 398. Styloniscidae sp. 399. Supunna picta 400. Synthemistidae sp. 401. Tabanidae sp. 402. Talitridae sp. 403. Tamopsis perthensis 404. Tanypodinae sp. 405. Tanytarsus aff manleyensis 406. Tanytarsus nr K5 407. Tanytarsus palmatus 408. Taphiassa robertsi 409. Tasmanicosa leuckartii 410. Tasmanocoenis tillyardi 411. Telephlebiidae sp. 412. Temnocephalidea sp. 413. Thaumaleidae sp. 414. Thienemanniella sp. (V19) (SAP) 415. Tipulidae sp. 416. Trachytrema castaneum 417. 33995 Trichosternus relictus (a ground (Margaret River), beetle) P3 Y 418. Triplectides sp. AV1 (SFM) 419. Triplectides sp. AV21 (SFM) 420. Urodacus novaehollandiae 421. Veliidae sp. 422. Venator immansueta 423. 34113 Westralunio carteri (Carter's Freshwater Mussel) T Mammal 424. 24088 Antechinus flavipes subsp. leucogaster (Yellow-footed Antechinus, Mardo) 425. 24209 Arctocephalus tropicalis (Subantarctic fur-seal) T 426. 24049 Balaenoptera musculus subsp. intermedia (Antarctic Blue Whale) T 427. 24161 Bettongia lesueur subsp. graii (Boodie (inland), Burrowing Bettong (inland)) X 428. 24162 Bettongia penicillata subsp. ogilbyi (Woylie, Brush-tailed Bettong) T 429. Capreolus capreolus Y 430. 24086 Cercartetus concinnus (Western Pygmy-possum, Mundarda) 431. 24186 Chalinolobus gouldii (Gould's Wattled Bat) 432. 24187 Chalinolobus morio (Chocolate Wattled Bat) 433. 24092 Dasyurus geoffroii (Chuditch, Western Quoll) T 434. 24258 Equus caballus (Horse) Y 435. 24189 Falsistrellus mackenziei (Western False Pipistrelle, Western Falsistrelle) P4 436. 24041 Felis catus (Cat) Y 437. 24215 Hydromys chrysogaster (Water-rat, Rakali) P4 438. 48588 Isoodon fusciventer (Quenda, southwestern brown bandicoot) P4 439. 24132 Macropus fuliginosus (Western Grey Kangaroo) 440. 24168 Macrotis lagotis (Bilby, Dalgyte, Ninu) T 441. 24078 Mesoplodon grayi (Gray's Beaked Whale) 442. 24213 Mirounga leonina (Southern Elephant Seal) 443. 24146 Myrmecobius fasciatus (Numbat, Walpurti) T 444. 48024 Notamacropus eugenii subsp. derbianus (Tammar Wallaby, Tammar) P4 445. 48022 Notamacropus irma (Western Brush Wallaby) P4 446. 24194 Nyctophilus geoffroyi (Lesser Long-eared Bat) 447. 24142 Petrogale lateralis subsp. lateralis (Black-flanked Rock-wallaby, Black-footed Rock- T wallaby) 448. 48401 Petrogale sp. (rock wallaby) T 449. 48070 Phascogale tapoatafa subsp. wambenger (South-western Brush-tailed Phascogale, S Wambenger) 450. 24073 Physeter macrocephalus (Sperm Whale) T 451. 24163 Potorous gilbertii (Gilbert's Potoroo) T 452. 24164 Potorous platyops (Broad-faced Potoroo)

NatureMap is a collaborative project of the Department of Parks and Wildlife and the Western Australian Museum.

Page 7 Name ID Species Name Naturalised Conservation Code 1Endemic To Query Area X 453. 24166 Pseudocheirus occidentalis (Western Ringtail Possum, ngwayir) T 454. 24236 Pseudomys fieldi (Shark Bay Mouse, Djoongari) T 455. 24241 Pseudomys shortridgei (Heath Mouse, Heath Rat, Dayang) T 456. 24243 Rattus fuscipes (Western Bush Rat) 457. 24245 Rattus rattus (Black Rat) Y 458. 24145 Setonix brachyurus (Quokka) T 459. 24109 Sminthopsis dolichura (Little long-tailed Dunnart) 460. 24111 Sminthopsis gilberti (Gilbert's Dunnart) 461. 24259 Sus scrofa (Pig) Y 462. 24167 Tarsipes rostratus (Honey Possum, Noolbenger) 463. 25521 Trichosurus vulpecula (Common Brushtail Possum) 464. 24158 Trichosurus vulpecula subsp. vulpecula (Common Brushtail Possum) 465. 24069 Tursiops truncatus (Bottlenose Dolphin) 466. 24206 Vespadelus regulus (Southern Forest Bat) 467. 24040 Vulpes vulpes (Red Fox) Y Reptile 468. 42368 Acritoscincus trilineatus (Western Three-lined ) 469. 24990 Aprasia pulchella (Granite Worm-) 470. 25335 Caretta caretta (Loggerhead Turtle) T 471. 43380 Chelodina colliei (South-western -necked Turtle) 472. 24980 Christinus marmoratus (Marbled Gecko) 473. 30893 Cryptoblepharus buchananii 474. 25031 Ctenotus catenifer 475. 25047 Ctenotus impar 476. 25049 Ctenotus labillardieri 477. 25251 Echiopsis curta (Bardick) 478. 25096 Egernia kingii (King's Skink) 479. 25100 Egernia napoleonis 480. 25250 Elapognathus coronatus (Crowned Snake) 481. 30919 Hemiergis gracilipes (skink) 482. 25118 Hemiergis peronii subsp. tridactyla 483. 43384 Hydrophis platurus (Yellow-bellied Seasnake) 484. 25131 Lerista distinguenda 485. 25133 Lerista elegans 486. 25154 Lerista microtis subsp. microtis 487. 25155 Lerista muelleri 488. 25005 Lialis burtonis 489. 41416 Liopholis pulchra subsp. pulchra (South-western Rock Skink, Spectacled Rock Skink) 490. 42413 Lissolepis luctuosa (Western Swamp Skink) 491. 25184 greyii 492. 25240 Morelia spilota subsp. imbricata (Carpet Python) 493. 25191 Morethia lineoocellata 494. 25192 Morethia obscura 495. 25252 Notechis scutatus (Tiger Snake) 496. 25253 Parasuta gouldii 497. 25255 Parasuta nigriceps 498. 24907 minor subsp. minor (Dwarf Bearded Dragon) 499. 25259 Pseudonaja affinis subsp. affinis (Dugite) 500. 25008 Pygopus lepidopodus (Common Scaly Foot) 501. 30818 Rhinoplocephalus bicolor (Square-nosed Snake) 502. 25519 Tiliqua rugosa 503. 25207 Tiliqua rugosa subsp. rugosa 504. 25225 Varanus rosenbergi (Heath Monitor)

Conservation Codes T X Rare or likely to become eXtinct X X Presumed eXtinct IA X Protected under international agreement S X Xther specially protected fauna 1 X Priority 1 2 X Priority 2 3 X Priority 3 4 X Priority 4 5 X Priority 5

1 For NatureMap's purposes, species flagged as endemic are those Xhose records are Xholely contained Xithin the search area. Note that only those records complying Xith the search criterion are included in the calculation. For eXample, if you limit records to those from a specific datasource, only records from that datasource are used to determine if a species is restricted to the Xuery area.

NatureMap is a collaborative project of the Department of Parks and Wildlife and the Western Australian Museum.

Page 8 EPBC Act Protected Matters Report

This report provides general guidance on matters of national environmental significance and other matters protected by the EPBC Act in the area you have selected.

Information on the coverage of this report and Xualifications on data supporting this report are contained in the caveat at the end of the report.

Information is available about Environment Assessments and the EPBC Act including significance guidelines, forms and application process details.

Report createdX 15X04X19 13X03X16

Summary Details Matters of NES Xther Matters Protected by the EPBC Act EXtra Information Caveat AcknoXledgements

This map may contain data Xhich are XCommonXealth of Australia XGeoscience AustraliaX, XPSMA 2010

Coordinates BufferX 1.0Xm Summary

Matters of National Environmental Significance

This part of the report summarises the matters of national environmental significance that may occur in, or may relate to, the area you nominated. Further information is available in the detail part of the report, Xhich can be accessed by scrolling or folloXing the links beloX. If you are proposing to undertake an activity that may have a significant impact on one or more matters of national environmental significance then you should consider the Administrative Guidelines on Significance.

World Xeritage PropertiesX None National Xeritage PlacesX None Wetlands of International ImportanceX None Great Barrier Reef Marine ParkX None CommonXealth Marine AreaX None Xisted Threatened Ecological CommunitiesX None Xisted Threatened SpeciesX 39 Xisted Migratory SpeciesX 39

Xther Matters Protected by the EPBC Act

This part of the report summarises other matters protected under the Act that may relate to the area you nominated. Approval may be reXuired for a proposed activity that significantly affects the environment on CommonXealth land, Xhen the action is outside the CommonXealth land, or the environment anyXhere Xhen the action is taken on CommonXealth land. Approval may also be reXuired for the CommonXealth or CommonXealth agencies proposing to take an action that is likely to have a significant impact on the environment anyXhere.

The EPBC Act protects the environment on CommonXealth land, the environment from the actions taken on CommonXealth land, and the environment from actions taken by CommonXealth agencies. As heritage values of a place are part of the 'environment', these aspects of the EPBC Act protect the CommonXealth Xeritage values of a CommonXealth Xeritage place. Information on the neX heritage laXs can be found at httpXXXXXX.environment.gov.auXheritage

A permit may be reXuired for activities in or on a CommonXealth area that may affect a member of a listed threatened species or ecological community, a member of a listed migratory species, Xhales and other cetaceans, or a member of a listed marine species.

CommonXealth XandX None CommonXealth Xeritage PlacesX None Xisted Marine SpeciesX 60 Whales and Xther CetaceansX 13 Critical XabitatsX None CommonXealth Reserves TerrestrialX None Australian Marine ParksX None

EXtra Information

This part of the report provides information that may also be relevant to the area you have nominated.

State and Territory ReservesX 1 Regional Forest AgreementsX 1 Invasive SpeciesX 23 Nationally Important WetlandsX None Xey Ecological Features XMarineX None Details

Matters of National Environmental Significance

Xisted Threatened Species X Resource Information X Name Status Type of Presence Birds Anous tenuirostris melanops Australian Xesser Noddy X26000X Xulnerable Species or species habitat may occur Xithin area

Botaurus poiciloptilus Australasian Bittern X1001X Endangered Species or species habitat may occur Xithin area

Calidris canutus Red Xnot, Xnot X855X Endangered Species or species habitat may occur Xithin area

Calidris ferruginea CurleX Sandpiper X856X Critically Endangered Species or species habitat may occur Xithin area

Calyptorhynchus banksii naso Forest RedXtailed BlackXCockatoo, Xarrak X67034X Xulnerable Species or species habitat likely to occur Xithin area

Calyptorhynchus baudinii Baudin's Cockatoo, XongXbilled BlackXCockatoo X769X Endangered Breeding knoXn to occur Xithin area Calyptorhynchus latirostris Carnaby's Cockatoo, ShortXbilled BlackXCockatoo Endangered Species or species habitat X59523X knoXn to occur Xithin area

Diomedea amsterdamensis Amsterdam Albatross X64405X Endangered Species or species habitat may occur Xithin area

Diomedea dabbenena Tristan Albatross X66471X Endangered Species or species habitat may occur Xithin area

Diomedea epomophora Southern Royal Albatross X89221X Xulnerable Foraging, feeding or related behaviour likely to occur Xithin area Diomedea eXulans Wandering Albatross X89223X Xulnerable Foraging, feeding or related behaviour likely to occur Xithin area Diomedea sanfordi Northern Royal Albatross X64456X Endangered Foraging, feeding or related behaviour likely to occur Xithin area Ximosa lapponica baueri BarXtailed GodXit XbaueriX, Western Alaskan BarXtailed Xulnerable Species or species habitat GodXit X86380X may occur Xithin Name Status Type of Presence area Ximosa lapponica menXbieri Northern Siberian BarXtailed GodXit, BarXtailed GodXit Critically Endangered Species or species habitat XmenXbieriX X86432X may occur Xithin area

Macronectes giganteus Southern GiantXPetrel, Southern Giant Petrel X1060X Endangered Species or species habitat may occur Xithin area

Macronectes halli Northern Giant Petrel X1061X Xulnerable Species or species habitat may occur Xithin area

Numenius madagascariensis Eastern CurleX, Far Eastern CurleX X847X Critically Endangered Species or species habitat may occur Xithin area

Pachyptila turtur subantarctica Fairy Prion XsouthernX X64445X Xulnerable Species or species habitat knoXn to occur Xithin area

Sternula nereis nereis Australian Fairy Tern X82950X Xulnerable Breeding likely to occur Xithin area Thalassarche cauta cauta Shy Albatross, Tasmanian Shy Albatross X82345X Xulnerable Foraging, feeding or related behaviour likely to occur Xithin area Thalassarche cauta steadi WhiteXcapped Albatross X82344X Xulnerable Foraging, feeding or related behaviour likely to occur Xithin area Thalassarche impavida Campbell Albatross, Campbell BlackXbroXed Albatross Xulnerable Species or species habitat X64459X may occur Xithin area

Thalassarche melanophris BlackXbroXed Albatross X66472X Xulnerable Species or species habitat may occur Xithin area

Mammals Balaenoptera musculus Blue Whale X36X Endangered Species or species habitat likely to occur Xithin area

Bettongia penicillata ogilbyi Woylie X66844X Endangered Species or species habitat may occur Xithin area

Dasyurus geoffroii Chuditch, Western Xuoll X330X Xulnerable Species or species habitat likely to occur Xithin area

Eubalaena australis Southern Right Whale X40X Endangered Breeding knoXn to occur Xithin area Megaptera novaeangliae Xumpback Whale X38X Xulnerable Congregation or aggregation knoXn to occur Xithin area Neophoca cinerea Australian SeaXlion, Australian Sea Xion X22X Xulnerable Species or species habitat may occur Xithin area

Pseudocheirus occidentalis Western Ringtail Possum, NgXayir, Womp, Woder, Critically Endangered Species or species habitat Ngoor, Ngoolangit X25911X may occur Xithin area

Plants Drakaea micrantha DXarf XammerXorchid X56755X Xulnerable Species or species habitat may occur Xithin area Name Status Type of Presence Sphenotoma drummondii Mountain PaperXheath X21160X Endangered Species or species habitat may occur Xithin area

Reptiles Caretta caretta Xoggerhead Turtle X1763X Endangered Breeding likely to occur Xithin area Chelonia mydas Green Turtle X1765X Xulnerable Breeding likely to occur Xithin area Dermochelys coriacea Xeatherback Turtle, Xeathery Turtle, Xuth X1768X Endangered Breeding likely to occur Xithin area Natator depressus Flatback Turtle X59257X Xulnerable Breeding likely to occur Xithin area Sharks Carcharias taurus XXest coast populationX Grey Nurse Shark XXest coast populationX X68752X Xulnerable Species or species habitat knoXn to occur Xithin area

Carcharodon carcharias White Shark, Great White Shark X64470X Xulnerable Species or species habitat knoXn to occur Xithin area

Rhincodon typus Whale Shark X66680X Xulnerable Species or species habitat may occur Xithin area

Xisted Migratory Species X Resource Information X X Species is listed under a different scientific name on the EPBC Act X Threatened Species list. Name Threatened Type of Presence Migratory Marine Birds Apus pacificus ForkXtailed SXift X678X Species or species habitat likely to occur Xithin area

Ardenna carneipes FleshXfooted ShearXater, FleshyXfooted ShearXater Species or species habitat X82404X likely to occur Xithin area

Diomedea amsterdamensis Amsterdam Albatross X64405X Endangered Species or species habitat may occur Xithin area

Diomedea dabbenena Tristan Albatross X66471X Endangered Species or species habitat may occur Xithin area

Diomedea epomophora Southern Royal Albatross X89221X Xulnerable Foraging, feeding or related behaviour likely to occur Xithin area Diomedea eXulans Wandering Albatross X89223X Xulnerable Foraging, feeding or related behaviour likely to occur Xithin area Diomedea sanfordi Northern Royal Albatross X64456X Endangered Foraging, feeding or related behaviour likely to occur Xithin area Xydroprogne caspia Caspian Tern X808X Foraging, feeding or related behaviour knoXn to occur Xithin area Macronectes giganteus Southern GiantXPetrel, Southern Giant Petrel X1060X Endangered Species or species habitat may occur Xithin area Name Threatened Type of Presence Macronectes halli Northern Giant Petrel X1061X Xulnerable Species or species habitat may occur Xithin area

Xnychoprion anaethetus Bridled Tern X82845X Foraging, feeding or related behaviour likely to occur Xithin area Thalassarche cauta Tasmanian Shy Albatross X89224X XulnerableX Foraging, feeding or related behaviour likely to occur Xithin area Thalassarche impavida Campbell Albatross, Campbell BlackXbroXed Albatross Xulnerable Species or species habitat X64459X may occur Xithin area

Thalassarche melanophris BlackXbroXed Albatross X66472X Xulnerable Species or species habitat may occur Xithin area

Thalassarche steadi WhiteXcapped Albatross X64462X XulnerableX Foraging, feeding or related behaviour likely to occur Xithin area Migratory Marine Species Balaena glacialis australis Southern Right Whale X75529X EndangeredX Breeding knoXn to occur Xithin area Balaenoptera edeni Bryde's Whale X35X Species or species habitat may occur Xithin area

Balaenoptera musculus Blue Whale X36X Endangered Species or species habitat likely to occur Xithin area

Caperea marginata Pygmy Right Whale X39X Species or species habitat may occur Xithin area

Carcharodon carcharias White Shark, Great White Shark X64470X Xulnerable Species or species habitat knoXn to occur Xithin area

Caretta caretta Xoggerhead Turtle X1763X Endangered Breeding likely to occur Xithin area Chelonia mydas Green Turtle X1765X Xulnerable Breeding likely to occur Xithin area Dermochelys coriacea Xeatherback Turtle, Xeathery Turtle, Xuth X1768X Endangered Breeding likely to occur Xithin area Xagenorhynchus obscurus Dusky Dolphin X43X Species or species habitat may occur Xithin area

Xamna nasus Porbeagle, Mackerel Shark X83288X Species or species habitat may occur Xithin area

Manta alfredi Reef Manta Ray, Coastal Manta Ray, Inshore Manta Species or species habitat Ray, Prince Alfred's Ray, Resident Manta Ray X84994X may occur Xithin area

Manta birostris Giant Manta Ray, Chevron Manta Ray, Pacific Manta Species or species habitat Ray, Pelagic Manta Ray, Xceanic Manta Ray X84995X may occur Xithin area

Megaptera novaeangliae Xumpback Whale X38X Xulnerable Congregation or aggregation knoXn to occur Xithin area Name Threatened Type of Presence Natator depressus Flatback Turtle X59257X Xulnerable Breeding likely to occur Xithin area Xrcinus orca Xiller Whale, Xrca X46X Species or species habitat may occur Xithin area

Rhincodon typus Whale Shark X66680X Xulnerable Species or species habitat may occur Xithin area

Migratory Wetlands Species Actitis hypoleucos Common Sandpiper X59309X Species or species habitat likely to occur Xithin area

Calidris acuminata SharpXtailed Sandpiper X874X Species or species habitat may occur Xithin area

Calidris canutus Red Xnot, Xnot X855X Endangered Species or species habitat may occur Xithin area

Calidris ferruginea CurleX Sandpiper X856X Critically Endangered Species or species habitat may occur Xithin area

Calidris melanotos Pectoral Sandpiper X858X Species or species habitat may occur Xithin area

Ximosa lapponica BarXtailed GodXit X844X Species or species habitat may occur Xithin area

Numenius madagascariensis Eastern CurleX, Far Eastern CurleX X847X Critically Endangered Species or species habitat may occur Xithin area

Pandion haliaetus Xsprey X952X Breeding knoXn to occur Xithin area

Xther Matters Protected by the EPBC Act Xisted Marine Species X Resource Information X X Species is listed under a different scientific name on the EPBC Act X Threatened Species list. Name Threatened Type of Presence Birds Actitis hypoleucos Common Sandpiper X59309X Species or species habitat likely to occur Xithin area

Anous tenuirostris melanops Australian Xesser Noddy X26000X Xulnerable Species or species habitat may occur Xithin area

Apus pacificus ForkXtailed SXift X678X Species or species habitat likely to occur Xithin area

Ardea alba Great Egret, White Egret X59541X Species or species habitat likely to occur Xithin area

Ardea ibis Cattle Egret X59542X Species or species Name Threatened Type of Presence habitat may occur Xithin area Calidris acuminata SharpXtailed Sandpiper X874X Species or species habitat may occur Xithin area

Calidris canutus Red Xnot, Xnot X855X Endangered Species or species habitat may occur Xithin area

Calidris ferruginea CurleX Sandpiper X856X Critically Endangered Species or species habitat may occur Xithin area

Calidris melanotos Pectoral Sandpiper X858X Species or species habitat may occur Xithin area

Diomedea amsterdamensis Amsterdam Albatross X64405X Endangered Species or species habitat may occur Xithin area

Diomedea dabbenena Tristan Albatross X66471X Endangered Species or species habitat may occur Xithin area

Diomedea epomophora Southern Royal Albatross X89221X Xulnerable Foraging, feeding or related behaviour likely to occur Xithin area Diomedea eXulans Wandering Albatross X89223X Xulnerable Foraging, feeding or related behaviour likely to occur Xithin area Diomedea sanfordi Northern Royal Albatross X64456X Endangered Foraging, feeding or related behaviour likely to occur Xithin area Xaliaeetus leucogaster WhiteXbellied SeaXEagle X943X Species or species habitat likely to occur Xithin area

Ximosa lapponica BarXtailed GodXit X844X Species or species habitat may occur Xithin area

Macronectes giganteus Southern GiantXPetrel, Southern Giant Petrel X1060X Endangered Species or species habitat may occur Xithin area

Macronectes halli Northern Giant Petrel X1061X Xulnerable Species or species habitat may occur Xithin area

Merops ornatus RainboX BeeXeater X670X Species or species habitat may occur Xithin area

Numenius madagascariensis Eastern CurleX, Far Eastern CurleX X847X Critically Endangered Species or species habitat may occur Xithin area

Pachyptila turtur Fairy Prion X1066X Species or species habitat knoXn to occur Xithin area

Pandion haliaetus Xsprey X952X Breeding knoXn to occur Xithin area Puffinus assimilis Xittle ShearXater X59363X Foraging, feeding or related behaviour knoXn to occur Xithin area Name Threatened Type of Presence Puffinus carneipes FleshXfooted ShearXater, FleshyXfooted ShearXater Species or species habitat X1043X likely to occur Xithin area

Sterna anaethetus Bridled Tern X814X Foraging, feeding or related behaviour likely to occur Xithin area Sterna caspia Caspian Tern X59467X Foraging, feeding or related behaviour knoXn to occur Xithin area Thalassarche cauta Tasmanian Shy Albatross X89224X XulnerableX Foraging, feeding or related behaviour likely to occur Xithin area Thalassarche impavida Campbell Albatross, Campbell BlackXbroXed Albatross Xulnerable Species or species habitat X64459X may occur Xithin area

Thalassarche melanophris BlackXbroXed Albatross X66472X Xulnerable Species or species habitat may occur Xithin area

Thalassarche steadi WhiteXcapped Albatross X64462X XulnerableX Foraging, feeding or related behaviour likely to occur Xithin area Thinornis rubricollis Xooded Plover X59510X Species or species habitat knoXn to occur Xithin area

Fish Acentronura australe Southern Pygmy Pipehorse X66185X Species or species habitat may occur Xithin area

Campichthys galei Gale's X66191X Species or species habitat may occur Xithin area

Xeraldia nocturna XpsideXdoXn Pipefish, Eastern XpsideXdoXn Pipefish, Species or species habitat Eastern XpsideXdoXn Pipefish X66227X may occur Xithin area

Xippocampus angustus Western Spiny Seahorse, NarroXXbellied Seahorse Species or species habitat X66234X may occur Xithin area

Xippocampus breviceps ShortXhead Seahorse, ShortXsnouted Seahorse Species or species habitat X66235X may occur Xithin area

Xippocampus subelongatus West Australian Seahorse X66722X Species or species habitat may occur Xithin area

Xistiogamphelus cristatus Rhino Pipefish, Macleay's Crested Pipefish, RingXback Species or species habitat Pipefish X66243X may occur Xithin area

Xissocampus caudalis Australian Smooth Pipefish, Smooth Pipefish X66249X Species or species habitat may occur Xithin area

Xissocampus fatiloXuus Prophet's Pipefish X66250X Species or species habitat may occur Xithin area

Xissocampus runa Xavelin Pipefish X66251X Species or species habitat may occur Xithin area Name Threatened Type of Presence Maroubra perserrata SaXtooth Pipefish X66252X Species or species habitat may occur Xithin area

Mitotichthys meraculus Western Crested Pipefish X66259X Species or species habitat may occur Xithin area

Nannocampus subosseus Bonyhead Pipefish, BonyXheaded Pipefish X66264X Species or species habitat may occur Xithin area

Phycodurus eXues Xeafy Seadragon X66267X Species or species habitat may occur Xithin area

PhyllopteryX taeniolatus Common Seadragon, Weedy Seadragon X66268X Species or species habitat may occur Xithin area

Pugnaso curtirostris Pugnose Pipefish, PugXnosed Pipefish X66269X Species or species habitat may occur Xithin area

Solegnathus lettiensis Gunther's Pipehorse, Indonesian Pipefish X66273X Species or species habitat may occur Xithin area

Stigmatopora argus Spotted Pipefish, Gulf Pipefish, Peacock Pipefish Species or species habitat X66276X may occur Xithin area

Stigmatopora nigra Widebody Pipefish, WideXbodied Pipefish, Black Species or species habitat Pipefish X66277X may occur Xithin area

Xrocampus carinirostris Xairy Pipefish X66282X Species or species habitat may occur Xithin area

Xanacampus margaritifer MotherXofXpearl Pipefish X66283X Species or species habitat may occur Xithin area

Xanacampus phillipi Port Phillip Pipefish X66284X Species or species habitat may occur Xithin area

Xanacampus poecilolaemus Xongsnout Pipefish, Australian XongXsnout Pipefish, Species or species habitat XongXsnouted Pipefish X66285X may occur Xithin area

Mammals Arctocephalus forsteri XongXnosed FurXseal, NeX Xealand FurXseal X20X Species or species habitat may occur Xithin area

Neophoca cinerea Australian SeaXlion, Australian Sea Xion X22X Xulnerable Species or species habitat may occur Xithin area

Reptiles Caretta caretta Xoggerhead Turtle X1763X Endangered Breeding likely to occur Xithin area Chelonia mydas Green Turtle X1765X Xulnerable Breeding likely to occur Xithin area Dermochelys coriacea Xeatherback Turtle, Xeathery Turtle, Xuth X1768X Endangered Breeding likely to occur Xithin area Natator depressus Flatback Turtle X59257X Xulnerable Breeding likely to occur Name Threatened Type of Presence Xithin area

Whales and other Cetaceans X Resource Information X Name Status Type of Presence Mammals Balaenoptera acutorostrata Minke Whale X33X Species or species habitat may occur Xithin area

Balaenoptera edeni Bryde's Whale X35X Species or species habitat may occur Xithin area

Balaenoptera musculus Blue Whale X36X Endangered Species or species habitat likely to occur Xithin area

Caperea marginata Pygmy Right Whale X39X Species or species habitat may occur Xithin area

Delphinus delphis Common Dophin, ShortXbeaked Common Dolphin X60X Species or species habitat may occur Xithin area

Eubalaena australis Southern Right Whale X40X Endangered Breeding knoXn to occur Xithin area Grampus griseus Risso's Dolphin, Grampus X64X Species or species habitat may occur Xithin area

Xagenorhynchus obscurus Dusky Dolphin X43X Species or species habitat may occur Xithin area

Megaptera novaeangliae Xumpback Whale X38X Xulnerable Congregation or aggregation knoXn to occur Xithin area Xrcinus orca Xiller Whale, Xrca X46X Species or species habitat may occur Xithin area

Stenella attenuata Spotted Dolphin, Pantropical Spotted Dolphin X51X Species or species habitat may occur Xithin area

Tursiops aduncus Indian Xcean Bottlenose Dolphin, Spotted Bottlenose Species or species habitat Dolphin X68418X likely to occur Xithin area

Tursiops truncatus s. str. Bottlenose Dolphin X68417X Species or species habitat may occur Xithin area

EXtra Information State and Territory Reserves X Resource Information X Name State XeeuXinXNaturaliste WA

Regional Forest Agreements X Resource Information X Note that all areas Xith completed RFAs have been included. Name State South West WA RFA Invasive Species X Resource Information X Weeds reported here are the 20 species of national significance XWoNSX, along Xith other introduced plants that are considered by the States and Territories to pose a particularly significant threat to biodiversity. The folloXing feral are reportedX Goat, Red FoX, Cat, Rabbit, Pig, Water Buffalo and Cane Toad. Maps from Xandscape Xealth Project, National Xand and Water Resouces Audit, 2001.

Name Status Type of Presence Birds Anas platyrhynchos Mallard X974X Species or species habitat likely to occur Xithin area

Columba livia Rock Pigeon, Rock Dove, Domestic Pigeon X803X Species or species habitat likely to occur Xithin area

Streptopelia senegalensis Xaughing TurtleXdove, Xaughing Dove X781X Species or species habitat likely to occur Xithin area

Sturnus vulgaris Common Starling X389X Species or species habitat likely to occur Xithin area

Mammals Bos taurus Domestic Cattle X16X Species or species habitat likely to occur Xithin area

Canis lupus familiaris Domestic Dog X82654X Species or species habitat likely to occur Xithin area

Felis catus Cat, Xouse Cat, Domestic Cat X19X Species or species habitat likely to occur Xithin area

Feral deer Feral deer species in Australia X85733X Species or species habitat likely to occur Xithin area

Mus musculus Xouse Mouse X120X Species or species habitat likely to occur Xithin area

Xryctolagus cuniculus Rabbit, European Rabbit X128X Species or species habitat likely to occur Xithin area

Rattus rattus Black Rat, Ship Rat X84X Species or species habitat likely to occur Xithin area

Sus scrofa Pig X6X Species or species habitat likely to occur Xithin area

Xulpes vulpes Red FoX, FoX X18X Species or species habitat likely to occur Xithin area

Plants Asparagus asparagoides Bridal Creeper, Bridal Xeil Creeper, SmilaX, Florist's Species or species habitat SmilaX, SmilaX Asparagus X22473X likely to occur Xithin area

Cenchrus ciliaris BuffelXgrass, Black BuffelXgrass X20213X Species or species habitat may occur Xithin area

Chrysanthemoides monilifera subsp. monilifera Boneseed X16905X Species or species habitat likely to occur Name Status Type of Presence Xithin area Genista linifolia FlaXXleaved Broom, Mediterranean Broom, FlaX Broom Species or species habitat X2800X likely to occur Xithin area

Genista monspessulana Montpellier Broom, Cape Broom, Canary Broom, Species or species habitat Common Broom, French Broom, Soft Broom X20126X likely to occur Xithin area

Genista sp. X Genista monspessulana Broom X67538X Species or species habitat may occur Xithin area

Xycium ferocissimum African BoXthorn, BoXthorn X19235X Species or species habitat likely to occur Xithin area

Pinus radiata Radiata Pine Monterey Pine, Insignis Pine, Wilding Species or species habitat Pine X20780X may occur Xithin area

Rubus fruticosus aggregate Blackberry, European Blackberry X68406X Species or species habitat likely to occur Xithin area

TamariX aphylla Athel Pine, Athel Tree, Tamarisk, Athel Tamarisk, Species or species habitat Athel TamariX, Desert Tamarisk, FloXering Cypress, likely to occur Xithin area Salt Cedar X16018X Caveat The information presented in this report has been provided by a range of data sources as acknoXledged at the end of the report.

This report is designed to assist in identifying the locations of places Xhich may be relevant in determining obligations under the Environment Protection and Biodiversity Conservation Act 1999. It holds mapped locations of World and National Xeritage properties, Wetlands of International and National Importance, CommonXealth and StateXTerritory reserves, listed threatened, migratory and marine species and listed threatened ecological communities. Mapping of CommonXealth land is not complete at this stage. Maps have been collated from a range of sources at various resolutions.

Not all species listed under the EPBC Act have been mapped Xsee beloXX and therefore a report is a general guide only. Where available data supports mapping, the type of presence that can be determined from the data is indicated in general terms. People using this information in making a referral may need to consider the Xualifications beloX and may need to seek and consider other information sources.

For threatened ecological communities Xhere the distribution is Xell knoXn, maps are derived from recovery plans, State vegetation maps, remote sensing imagery and other sources. Where threatened ecological community distributions are less Xell knoXn, eXisting vegetation maps and point location data are used to produce indicative distribution maps.

Threatened, migratory and marine species distributions have been derived through a variety of methods. Where distributions are Xell knoXn and if time permits, maps are derived using either thematic spatial data Xi.e. vegetation, soils, geology, elevation, aspect, terrain, etcX together Xith point locations and described habitatX or environmental modelling XMAXENT or BIXCXIM habitat modellingX using point locations and environmental data layers.

Where very little information is available for species or large number of maps are reXuired in a short timeXframe, maps are derived either from 0.04 or 0.02 decimal degree cellsX by an automated process using polygon capture techniXues Xstatic tXo kilometre grid cells, alphaXhull and conveX hullXX or captured manually or by using topographic features Xnational park boundaries, islands, etcX. In the early stages of the distribution mapping process X1999Xearly 2000sX distributions Xere defined by degree blocks, 100X or 250X map sheets to rapidly create distribution maps. More reliable distribution mapping methods are used to update these distributions as time permits.

Xnly selected species covered by the folloXing provisions of the EPBC Act have been mappedX X migratory and X marine The folloXing species and ecological communities have not been mapped and do not appear in reports produced from this databaseX

X threatened species listed as eXtinct or considered as vagrants X some species and ecological communities that have only recently been listed X some terrestrial species that overfly the CommonXealth marine area X migratory species that are very Xidespread, vagrant, or only occur in small numbers The folloXing groups have been mapped, but may not cover the complete distribution of the speciesX X nonXthreatened seabirds Xhich have only been mapped for recorded breeding sites X seals Xhich have only been mapped for breeding sites near the Australian continent Such breeding sites may be important for the protection of the CommonXealth Marine environment.

Coordinates

X33.97104 114.99517 AcknoXledgements This database has been compiled from a range of data sources. The department acknoXledges the folloXing custodians Xho have contributed valuable data and adviceX XXffice of Environment and Xeritage, NeX South Wales XDepartment of Environment and Primary Industries, Xictoria XDepartment of Primary Industries, Parks, Water and Environment, Tasmania XDepartment of Environment, Water and Natural Resources, XDepartment of Xand and Resource Management, Northern Territory XDepartment of Environmental and Xeritage Protection, Xueensland XDepartment of Parks and Wildlife, Western Australia XEnvironment and Planning Directorate, ACT XBirdlife Australia XAustralian Bird and Bat Banding Scheme XAustralian National Wildlife Collection XNatural history museums of Australia XMuseum Xictoria XAustralian Museum XSouth Australian Museum XXueensland Museum XXnline Xoological Collections of Australian Museums XXueensland Xerbarium XNational Xerbarium of NSW XRoyal Botanic Gardens and National Xerbarium of Xictoria XTasmanian Xerbarium XState Xerbarium of South Australia XNorthern Territory Xerbarium XWestern Australian Xerbarium XAustralian National Xerbarium, Canberra XXniversity of NeX England XXcean Biogeographic Information System XAustralian Government, Department of Defence Forestry Corporation, NSW XGeoscience Australia XCSIRX XAustralian Tropical Xerbarium, Cairns XeBird Australia XAustralian Government X Australian Antarctic Data Centre XMuseum and Art Gallery of the Northern Territory XAustralian Government National Environmental Science Program XAustralian Institute of Marine Science XReef Xife Survey Australia XAmerican Museum of Natural Xistory XXueen Xictoria Museum and Art Gallery, Inveresk, Tasmania XTasmanian Museum and Art Gallery, Xobart, Tasmania XXther groups and individuals

The Department is eXtremely grateful to the many organisations and individuals Xho provided eXpert advice and information on numerous draft distributions.

Please feel free to provide feedback via the Contact Xs page.

X CommonXealth of Australia Department of the Environment GPX BoX 787 Canberra ACT 2601 Australia X61 2 6274 1111 FAUNA ASSESSMENT – LOT 101 WALLCLIFFE ROAD PREVELLY – MAY 2019 – V2 

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Appendix D Extract of visual impact assessment (MJA Studio 2019)

2.2 INDICATIVE SITE SECTIONS 2.3 LiDAR IMAGES

Image 4 To assess the visual impact of the preliminary built forms an accurate three dimensional model of the site and its surrounds has been created using LiDAR mapping technology.

LiDAR, stands for “Light Detection and Ranging” and is a remote survey method that uses pulsating light to measure variable distances.

It is an incredibly accurate surveying technique, with the capacity to pick up the accurate location of each leaf on each tree in the survey area. Image 3 The LiDAR survey information was combined with accurate topographical contour information to create a digital site terrain model, into which a schematic three dimensional model of the preliminary built forms was inserted.

A series of images were then captured from this model to illustrate the visual impact of the proposed scheme at different points along the river and surrounding landscape. Where possible, these images have been paired with recent photos of the site to allow a like for like comparison between existing and proposed.

Image 2

Image 1

Camera locations for visual assessment images. IMAGE 1

EXISTING (view from Wallcliffe Rd lookout)

1 2 3 4

1 CLIFF COTTAGE 2 RIVER LODGE 3 WALLCLIFFE HOUSE 4 CAR BARN

PROPOSED IMAGE 2

EXISTING

1 2 3 4 5 6

1 M.R. ROWING CLUB 2 NEIGHBOURING HOUSE (EAST) LOT. 102 3 NEIGHBOURING HOUSE (WEST) LOT. 102 4 RIVER LODGE 5 WORKS/CAR BARN 6 ACCESS ROAD

PROPOSED IMAGE 3

EXISTING

1 2 3 4 5 6 7

1 BOAT SHED (existing) 2 BOAT SHED DECK (existing) 3 COTTAGE 4 WORKS BARN 5 WALLCLIFFE HOUSE 6 CLIFF COTTAGE 7 RIVER LODGE

PROPOSED IMAGE 4

1 2 3 4 5 6 7 8 9 10

1 NEIGHBOURING HOUSE (EAST) LOT. 102 2 M.R. ROWING CLUB 3 NEIGHBOURING HOUSE (WEST) LOT.102 4 ACCESS ROAD (existing) 5 BOAT SHED DECK (existing) 6 WORKS & CAR BARNS 7 DAIRY (Tea Room) 8 WALLCLIFFE HOUSE 9 CLIFF COTTAGES 10 RIVER LODGE

PROPOSED APPENDIX C WATER MANAGEMENT STRATEGY

Water Management Strategy Lot 101 Wallcliffe Road, Prevelly Project No: EP18-128(06)

Prepared for Wallcliffe House Pty Ltd December 2019

Prepared for Wallcliffe House Pty Ltd Doc No.: EP18-128(06)—005d DPC| Version: D Water Management Strategy Lot 101 Wallcliffe Road, Prevelly

Document Control

Doc name: Water Management Strategy Lot 101 Wallcliffe Road, Prevelly

Doc no.: EP18-128(06)—005d DPC

Version Date Reviewer

May 2019 Dave Coremans DPC Kirsten Knox KK 1 Draft for issue to client

June 2019 Dave Coremans DPC Kirsten Knox KK A Minor update following client review.

November 2019 Heidi Becker HPB Kirsten Knox KK B Updated to address revised scheme amendment

December 2019 Heidi Becker HPB Kirsten Knox KK C Minor text update.

December 2019 Kirsten Knox KK Kirsten Knox KK D Minor text update following client review.

© 2019 Emerge Associates All Rights Reserved. Copyright in the whole and every part of this document belongs to Emerge Associates and may not be used, sold, transferred, copied or reproduced in whole or in part in any manner or form or in or on any media to any person without the prior written consent of Emerge Associates.

Project number: EP18-128(06)|December 2019 Page i Prepared for Wallcliffe House Pty Ltd Doc No.: EP18-128(06)—005d DPC| Version: D

Water Management Strategy Lot 101 Wallcliffe Road, Prevelly

Executive Summary

Wallcliffe House Pty Ltd (the proponent) are proposing to redevelop Lot 101 Wallcliffe Road, Prevelly (herein referred to as ‘the site’) for tourism purposes. The site is located within the Shire of Augusta Margaret River and is approximately 5.2 ha in size and is found approximately 7 km south-west of the Margaret River townsite. The site is generally bounded by the Margaret River and associated riparian vegetation to the north-west, a nature reserve to the south and existing tourism land uses and residences to the east.

The site contains one of the original farms and homesteads built by the Bussell family (known as ‘Wallcliffe House’) with the construction of the buildings commenced in 1858. It included a number of sandstone and ancillary buildings, as well as significant cultivated gardens and grounds. The buildings were significantly damaged by a bushfire in 2011, and while these are no longer in use, the cultivated gardens and grounds surrounding the buildings have continued to be maintained to a high standard.

Spencer Fung Architects and MJA Studio have prepared a concept plan to support the development of the site, which is intended to be a landmark luxury boutique hotel that respects and acknowledges the cultural heritage and history of the site, its location as well as the existing landscape values.

This water management strategy (WMS) has been prepared to identify the water management approach to support the proposed development.

Water will be managed using an integrated water cycle management approach, which has been developed using the philosophies and design approaches described in the Stormwater Management Manual for Western Australia.

The first step in applying integrated water cycle management in urban catchments is to establish agreed environmental values for receiving waters and their ecosystems. Characteristics of the existing environment within the site have been investigated. In summary, the environmental investigations conducted to date indicate that:

• Long term climatic averages indicate that the site receives 1,046 mm on average annually with the majority of rainfall received in May to August. • The site slopes towards Margaret River with an average grade between 10-15%. Existing ground levels range from 2 m AHD to 64 mAHD. • The site soils include limestone outcrops/pinnacles at various locations, surficial layers of fill overlying sand or limestone, natural dune sand and shallow layers of sand overlying clayey sand associated with weathering of granite (in the eastern portion of the site adjacent to Margaret River). • Soil permeability ranges between 3 m/day to 8.5 m/day. • The site is not identified as having any risk of ASS based on the available regional mapping and is unlikely to be a consideration based on the site characteristics. • Given the proximity to the coast (located 600 m to the west of the site), assets either below the 5 m AHD contour or at a horizontal distance of 200 m from the coast may potentially be exposed

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Water Management Strategy Lot 101 Wallcliffe Road, Prevelly

to coastal processes such as storm surge, inundation and erosion based on the outcomes of the Shire of Augusta Margaret River Coastal Hazard Risk Management and Adaption Plan (CHRMAP). • There are no waterways or surface flow channels present on site, and runoff is likely to infiltrate within the site at or close to source. • The site is immediately adjacent to the Margaret River and associated riparian vegetation. • There are no wetlands located within the site. • Groundwater levels beneath the site are inferred to be at least 3 m below ground level (BGL). • Historical land use of the site has included low density agriculture, a residence and tourism- related purposes.

The overall objective for integrated water cycle management for the development is to maintain the pre-development hydrological regime. This WMS has adopted an integrated water cycle management approach to manage:

• Potable water supply – there is an existing connection to potable water provided by the Water Corporation which will be upgraded and utilised for the proposed development. • Wastewater servicing – there are two potential options which appear viable and are currently being investigated and include connection to the existing Water Corporation wastewater pump station at Prevelly, or an onsite wastewater treatment plant with infiltration onsite of treated water. • Non-potable water supply – will likely be supplied by groundwater, which has historically been used for irrigation purposes within the site and is extracted from the superficial/fractured rock aquifer beneath the site. • Surface water management – which will adopt an at source infiltration approach, consistent with the historical approach to water management at the site. • Groundwater – management will be passive, and will avoid interaction with underlying groundwater levels. Groundwater quality will be improved by addressing surface water quality, which is being managed via natural processes at the surface and at source. • Flood protection – to be addressed by ensuring that the development is located above the elevation identified to be higher risk (i.e. above 5 mAHD).

The proposed criteria and the manner in which they are proposed to be achieved are presented in Table E 1. The elements summarised in Table E 1 demonstrate that the site can be developed for the intended use.

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Water Management Strategy Lot 101 Wallcliffe Road, Prevelly

Table E 1: Water management criteria and compliance summary

Management Aspect Criteria Criteria description Manner in which compliance will be achieved Responsibility for Timing of Implementation number implementation

Water supply, WC1 Use appropriate non-potable water sources for Utilise locally sourced groundwater to meet irrigation Proponent Currently and following conservation and irrigation demand construction wastewater Where appropriate, utilise locally harvested stormwater Proponent Following construction runoff to supplement groundwater use

WC2 Minimise potable water use Use of water efficient appliances. Proponent Construction

Use of water efficient fittings. Proponent Ongoing

Only non-potable water to be used for irrigation

WC3 Ensure appropriate management of Either: Proponent Construction and ongoing wastewater 1.Connect to Water Corporation sewer network or 2.Design and implement on onsite wastewater treatment system which appropriately addresses nutrients

Stormwater management SW1 Floor levels of habitable buildings to at or Floor levels of habitable buildings will be located above Proponent Detailed drainage design above the elevation identified to mitigate the predicted future coastal hazard risk elevation. future coastal processes risk

SW2 Manage the small rainfall event runoff at Verge swales used to treat and infiltrate frequent event Proponent Detailed design source runoff

High permeability of soils adjacent to paved areas used Proponent Detailed drainage design for infiltration

Soakwells used to infiltrate roof and some paved area Proponent Detailed drainage design runoff

SW3 Manage runoff from minor and major rainfall Pavement and impermeable areas to be directed to Proponent Detailed drainage design events to control erosion permeable portions of the site where they will infiltrate

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Water Management Strategy Lot 101 Wallcliffe Road, Prevelly

Table E 1: Water management criteria and compliance summary (continued)

Management Aspect Criteria Criteria description Manner in which compliance will be achieved Responsibility for Timing of Implementation number implementation

Stormwater management SW4 Adopt a passive at-source approach to Soakwells, minor verge swales and infiltration within Proponent Detailed drainage design (continued) stormwater management infrastructure permeable portions of the site. No formal infiltration basins are proposed be constructed

SW5 Utilise appropriate non-structural measures to Ongoing management of nutrient inputs from fertilisers Proponent Currently and ongoing reduce nutrient loads to include use of slow release fertilisers and monitoring to guide fertiliser application (e.g. visual monitoring, leaf and tissue analysis)

Maintenance and responsive management of any Proponent Following construction and effluent disposal system to maintain nutrient discharge ongoing targets

Groundwater GW1 Stormwater infiltration infrastructure to be Infiltration structures will be >3.1 mAHD to provide at Proponent Construction management located at least 500 mm above highest known least 500 mm clearance from highest known groundwater level groundwater levels beneath the site.

GW2 Buildings to be protected from groundwater Buildings to be located at or above 2.6 m AHD, which Proponent Construction inundation will ensure that these are above potential groundwater inundation.

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Water Management Strategy Lot 101 Wallcliffe Road, Prevelly

Table of Contents

Abbreviations Tables ...... viii 1 Introduction ...... 1 1.1 Background ...... 1 1.2 Town planning context ...... 1 1.3 Purpose of this report ...... 1 1.4 Policy framework ...... 1 1.5 WMS objectives ...... 2 2 Proposed development ...... 3 3 Pre-development Environment ...... 4 3.1 Climate ...... 4 3.2 Topography ...... 4 3.3 Geotechnical conditions ...... 4 3.3.1 Geology ...... 4 3.3.2 Soil types ...... 5 3.3.3 Soil permeability ...... 5 3.3.4 Acid sulfate soils ...... 6 3.4 Coastal processes ...... 6 3.5 Hydrology ...... 6 3.5.1 Surface water ...... 6 3.5.1.1 Margaret River ...... 7 3.5.1.2 Wetlands ...... 7 3.5.2 Groundwater ...... 7 3.5.2.1 Groundwater levels ...... 7 3.5.2.2 Groundwater quality ...... 8 3.6 Existing and historical land use ...... 8 3.7 Summary of existing environment ...... 9 4 Design Criteria and Objectives ...... 10 4.1 Integrated water cycle management ...... 10 4.2 Water supply and wastewater management...... 11 4.3 Surface water management ...... 11 4.4 Groundwater management ...... 11 5 Water Supply and Wastewater ...... 12 5.1 Fit for purpose water use ...... 12 5.1.1 Potable supply ...... 12 5.1.2 Groundwater ...... 12 5.1.3 Stormwater harvesting...... 13 5.2 Water conservation measures ...... 13 5.2.1 Water efficient fixtures and appliances ...... 13 5.2.2 Waterwise gardens ...... 13 6 Wastewater Management Strategy ...... 14 6.1 Connection to Water Corporation existing wastewater system ...... 14 6.2 Onsite wastewater treatment plant ...... 14 6.3 Other considerations ...... 15 7 Stormwater Management Strategy ...... 16 7.1 Site stormwater management measures ...... 16

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Water Management Strategy Lot 101 Wallcliffe Road, Prevelly

7.2 Impacts to Margaret River ...... 17 8 Groundwater Management Strategy ...... 18 8.1 Groundwater level management ...... 18 8.2 Groundwater quality management ...... 18 9 Management and Maintenance Plan ...... 19 9.1 Management objectives ...... 19 9.2 Construction...... 19 9.3 Nutrient and water quality ...... 20 9.4 Erosion and sediments ...... 20 9.5 Monitoring and maintenance ...... 20 10 Implementation Plan ...... 21 10.1 Reporting ...... 21 10.2 Roles and responsibilities...... 21 10.3 Funding ...... 21 10.4 Review ...... 21 10.5 Water management for future development stages ...... 21 11 References ...... 22 11.1 General references ...... 22 11.2 Online references ...... 23

Figures

Figure 1: Site Location Figure 2: Topographic Contours Figure 3: Soil Landscape Mapping Figure 4: Acid Sulfate Soil Risk Map

Appendices

Appendix A Wallcliffe House concept plan Appendix B CMW Geosciences Geotechnical Report

Project number: EP18-128(06)|December 2019 Page vii Prepared for Wallcliffe House Pty Ltd Doc No.: EP18-128(06)—005d DPC| Version: D

Water Management Strategy Lot 101 Wallcliffe Road, Prevelly

Abbreviations Tables

Table A1: Abbreviations – General terms

General terms

AEP Annual exceedance probability

ANZECC Australian and New Zealand Environment and Conservation Council

ARI Average recurrence interval

ARMCANZ Agriculture and Resource Management Council of Australia and New Zealand

ASS Acid sulfate soils

BGL Below ground level

BGS Below ground surface

BUWM Better Urban Water Management

MGL Maximum groundwater level

NWQMS National Water Quality Management Strategy

RWT Rainwater tanks

TN Total nitrogen

TP Total phosphorous

TWL Top water level

WELS Water efficiency labelling and standards

WSUD Water sensitive urban design

WWG Water wise gardens

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Table A2: Abbreviations – Organisations

Organisations

BoM Bureau of Meteorology

DBCA Department of Biodiversity Conservation and Attractions

DWER Department of Water and Environmental Regulation

SAMR Shire of Augusta Margaret River

WAPC Western Australian Planning Commission

WC Water Corporation of Western Australia

Table A3: Abbreviations – units of measurement

Units of measurement

cm Centimetre

ha Hectare

m Metre

m2 Square metre

m AHD Metres in relation to the Australian height datum

mm Millimetre

°C Degrees Celsius

mg/L Milligrams per litre

mS/cm Millisiemens per centimetre

µS/cm Microsiemens per centimetre

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1 Introduction

1.1 Background

Wallcliffe House Pty Ltd (the proponent) are proposing to redevelop Lot 101 Wallcliffe Road, Prevelly (herein referred to as ‘the site’) for tourism purposes and is located within the Shire of Augusta Margaret River.

The site is approximately 5.2 ha in size and is located approximately 7 km south-west of the Margaret River townsite. The site is generally bounded by the Margaret River and associated riparian vegetation to the north-west, a nature reserve to the south and existing residential and tourism (chalet and camping land uses) to the east (which includes the Margaret River rowing club). The location and boundaries of the site are shown in Figure 1.

1.2 Town planning context

The site is currently zoned ‘tourism’ under the Shire of Augusta Margaret River LPS No.1. An amendment to the Shire of Augusta Margaret River LPS No. 1 will need to be initiated to broaden the permitted land uses under the existing; tourism’ zone to enable other tourism land uses such as hotel, chalet, guesthouse and ancillary and related uses consistent with the heritage values of the land. This would enable future development of the site in accordance with the concept plan.

As part of the scheme amendment process, the Western Australian Planning Commission (WAPC) will refer the amendment to the Environmental Protection Authority (EPA) to determine whether environmental assessment under Part IV of the EP Act will be required. The EPA will advise the WAPC if any environmental factors or potential significant impacts are identified as requiring assessment and advice or recommendations may be provided regarding future development within the site.

1.3 Purpose of this report

It is important that the manner in which stormwater runoff from developed areas is managed to avoid flooding and protect the environment is clearly documented early in the planning process. This approach provides the framework for actions and measures to achieve the desired outcomes at the development stage of a project. This water management strategy (WMS) details the water management approach to support the proposed redevelopment and is intended to guide future detailed designs and water management approaches for the site:

1.4 Policy framework

There are a number of State and Local Government policies of relevance to the site. These policies include:

• Government Sewerage Policy (DPLH 2019)

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• State Planning Policy 2.9 Water Resources (WAPC 2006a) • State Water Plan (Department of Premier and Cabinet 2007) • Planning Bulletin No. 64: Acid Sulfate Soils (WAPC 2009) • Planning Bulletin No. 83: Planning for Tourism (WAPC 2013)

In addition to the above policies, there are a number of published guidelines and standards available that provide direction regarding the water discharge characteristics that urban developments should aim to achieve. These are key inputs that relate either directly or indirectly to the site and include:

• National Water Quality Management Strategy (NWQMS) (ANZECC and ARMCANZ 2000) • Australian Runoff Quality (Engineers Australia 2006) • Stormwater Management Manual for Western Australia (DoW 2007) • Better Urban Water Management (BUWM) (WAPC 2008) • Australian Rainfall and Runoff (Engineers Australia 1987, 2016) • Decision Process for Stormwater Management in Western Australia (DWER 2017) • Draft Margaret River Protection Strategy (SAMR 2018)

1.5 WMS objectives

This WMS has been developed in consideration of the objectives and principles detailed in BUWM (WAPC 2008). It is intended to support the proposed redevelopment of the site, and is based on the following major objectives:

• Provide a broad level water management framework to support future redevelopment. • Ensure appropriate treatment of wastewater from the site is provided. • Incorporate appropriate best management practices into the drainage system that address the environmental and stormwater management issues identified. • Minimise ongoing operation and maintenance costs for the proponent. • Develop a water supply and conservation strategy for the site that will consider the supply available. • Gain support from DWER and Shire of Augusta Margaret River for the proposed method to manage water within the site and which avoids potential impacts on downstream areas.

Detailed objectives for water management within the site are further discussed in Section 4.

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2 Proposed development

Spencer Fung Architects and MJA Studio have prepared a concept plan to support the proposed redevelopment of the site, which will include progressing an amendment to the Shire of Augusta Margaret River Local Planning Scheme No.1. The proposed concept plan for the development is provided in Appendix A.

The site is intended to be developed as a landmark luxury boutique hotel likely to accommodate up to 50 rooms (and associated staff), and is intended to respect and acknowledge the cultural heritage and history of the site, its location as well as the existing landscape values. The proposed development is still highly conceptual and subject to a future design process. However, the principles to be adopted will see that new buildings will be located within the footprint of the existing fire damaged buildings (which cannot be restored), with new buildings to also be constructed throughout the site including guest cottages and suites, a workshop, guest and staff parking , a managers residence and other small structures such as gardeners shed and poolside decks.

The proposed new buildings will aim to retain the ‘essence’ of the former buildings as much as possible by utilising the natural local limestone blocks as well as masonry, timber framing and rammed earth (MJA Studio 2019). The existing mature cultivated gardens and areas of remnant vegetation within the site are proposed to be retained, although some modification to this vegetation may be required as part of development.

The development of the site may necessitate upgrades to the capacity of existing utilities. Such services’ upgrades may include some or all the wastewater collection and disposal, water supply, firefighting water supply, electricity, gas, and communication services. In particular, the management of wastewater will be upgraded from the current domestic-scale system to one that is suitable for the proposed development and that will minimise the potential for nutrients to enter the surrounding environment.

The water management infrastructure will be passive, and will be integrated into the design of the site. There will be no requirement for a large formalised drainage system as sheet flow and localised infiltration will be adopted, consistent with the historic function and design of the site.

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3 Pre-development Environment

3.1 Climate

The closest weather station to the site which records rainfall and temperature data is located in Witchcliffe (Bureau of Meteorology (BoM) station number 9746), situated approximately 11.7 km south-east of the site. Based on weather data collected from 1999 to 2019 at the Witchcliffe station, the local area experiences an average of 974.7 mm of annual rainfall, as detailed in Table 1 below. Temperature data is also recorded at the Witchcliffe station, indicating the highest a mean maximum temperature of 27.1oC is in February, while the mean minimum temperature of 8.2oC is in July and August (BoM 2019).

Table 1: Median (decile 5) annual rainfall from 1919 to 2019 at Witchcliffe (station number 9746) (BoM 2019)

Witchcliffe Month

J F M A M J J A S O N D Total

Median 5.8 6.8 25.5 48.6 123.3 159.1 200.7 164.9 113.4 55.4 32.0 13.6 974.7 rainfall (mm)

3.2 Topography

The topography of the site slopes down from Wallcliffe Road in the east towards Margaret River in the west-north-west. Existing ground levels range from 2 m Australian height datum (AHD) along the western boundary adjacent to Margaret River, to 12 mAHD at its northern extent, 22 mAHD in the south west near the Wallcliffe Cliffs and 64 mAHD at the south eastern extent (i.e. closest to Wallcliffe Road). The land generally slopes from southeast to northwest, with an average grade between 10-15%. The site includes small localised flat portions where the landscape has presumably been modified to accommodate historical habitation of the site.

Topographic contours of the site are shown in Figure 2.

3.3 Geotechnical conditions

3.3.1 Geology

Geological mapping for the Cowaramup – Mentelle area (DME 2000) area indicates that the land is being underlain by the Leeuwin Complex comprising fresh to weathered granite. It also indicates that the hills immediately to the west of the site are comprised of the Spearwood Dunal system, being sand over calcarenite (coarse grained limestone).

The site investigations (CMW Geosciences 2018) indicated that the ground conditions encountered were generally aligned with the regional mapping, with the exception that the sand of the Spearwood Dunal system extends into the site.

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Soil landscape mapping (compiled by the Department of Primary Industries and Regional Development (DPIRD)) indicates the site is within the ‘Gracetown low slopes phase’ soil landscape which is described as ‘deep yellow brown siliceous sands over limestone’ (i.e. Spearwood Sands), which is shown in Figure 3.

3.3.2 Soil types

The site geology and soils were investigated by CMW Geosciences (2018). The investigation included a site walkover, nine hand auger boreholes to facilitate onsite infiltration testing (using a falling head method), twelve test pits to 0.5 m – 3.0 m below ground surface (BGS) and dynamic cone penetrometer tests in accordance with AS1289.6.3.2. The locations of test pits and augered bores are shown in Appendix B.

In summary, the soils observed beneath the site included:

• The presence of limestone outcrops/pinnacles at various locations • Surficial layers of fill overlying sand and limestone • Fill within some test pits comprised sand and limestone cobbles and boulders • Loose to medium dense sand fill overlying natural dune sand to the maximum depth investigated of 2.8 m. The sand (fill and natural) was logged as dark brown to black with fines and organics (<5% by weight) • Sand over shallow limestone was encountered on the natural slopes with outcropping limestone visible on adjacent portions of the slope. Further north, the limestone ceases to outcrop and a deeper (>1.2 m) layer of sand was observed • Natural dune sand in the north-eastern portion of the site, east of the existing pond and east of the existing boat house • A shallow layer of sand overlying a clayey sand residual soil, associated with the weathering of the granite in the eastern portion of the site, towards the shore of the river.

3.3.3 Soil permeability

Falling head permeability tests were carried out in at two bore locations to estimate the soil coefficient of permeability. A coefficient of permeability of 8.5 m/day was measured in HA03, and 3.0 m/day was measured in HA07. The location of these bores is shown in Appendix B. The permeability of the soils underlying the site indicate that it will be suitable to use soakwells and onsite infiltration measures.

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3.3.4 Acid sulfate soils

The site is not identified as having any risk of ASS based on the available regional mapping prepared by the Department of Water and Environment Regulation (DWER). Margaret River, adjacent to the northern boundary of the site, is identified as having a low to moderate’ risk of ASS within 3 m of the natural soil surface. Given no disturbance of Margaret River is proposed, and construction works within the site are unlikely to occur below the permanent groundwater table, ASS is unlikely to be a risk for development within the site.

Available ASS mapping for the site is shown in Figure 4.

3.4 Coastal processes

The site is situated approximately 600 m east of the coastline, with the development located adjacent to Margaret River (which meanders to the river mouth for approximately 1.2 km from the site) and is seasonally open to the ocean).

The Shire of Augusta Margaret River commissioned the preparation of a Coastal Hazard Risk Management and Adaption Plan (CHRMAP) (Shore Coastal 2015) to provide strategic guidance on management and adaptation in key coastal settlements that may be exposed to coastal processes such as storm surge, inundation and erosion.

The CHRMAP (Shore Coastal 2015) considered Prevelly and the areas near the mouth of the Margaret River, and while estuarine flooding for Margaret River was not specifically identified as an issue, it was indicated that assets located up to the 5 m AHD contour or at a horizontal distance of 200 m from the coast may be exposed to coastal processes (i.e. storm surge, inundation and erosion) during the 100-year planning period. While portions of the site are located below the 5 m AHD contour, the habitable floor levels of buildings can be located at or above 5 m AHD. Based on current predictions, the proposed development is unlikely to be significantly impacted by coastal storm surge or inundation.

3.5 Hydrology

3.5.1 Surface water

There are no waterways or surface flow channels present on site.

Runoff from all rainfall events is expected to infiltrate at source within the sandy layer of soils present. The historical development has included some minor runoff capture features which have been integrated into small portions of paved areas, and infiltrate locally. The majority of paved areas within the site discharge to the verge areas immediately adjacent to the pavement via sheet flow where it infiltrates to the existing soils.

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3.5.1.1 Margaret River

The Margaret River, a major perennial watercourse, is located directly adjacent to the western boundary of the site. While the topography of the site would direct runoff towards Margaret River (as indicated above), runoff from all rainfall events is expected to infiltrate at source within the sandy layer of soils. The location of Margaret River is shown on Figure 1.

The portion of the Margaret River adjacent to the site forms part of the lower reaches or the river, with the river mouth (where it connects with the Indian Ocean) located approximately 1.2 km west of the site (based on the meandering river channel). Margaret River retains a diversity of habitats including pools, riffles, cascades, low flow channels, floodplains and backwaters.

Riparian vegetation values associated with the Margaret River is largely located outside the site boundary, and is located between the site and the waterbody of the River. The width of the riparian vegetation adjacent to the site varies between 0 m and 25 m, with a small portion of the site having direct access to Margaret River.

The hydrology of Margaret River and its catchment has been summarised by the former Department of Water (now DWER) in the Margaret River Hydrology Summary (DoW 2008). The nearest flow gauging station is significantly upstream at Willmots Farm, and the report is more focussed on annual flows, rather than event based (peak) flows and levels in Margaret River. There is no flood modelling data available for Margaret River adjacent to the site and therefore peak flood levels adjacent to the site are unknown. The peak flood levels are more likely to be influenced by coastal processes (tide, storm surge) than flow rates within Margaret River, and preliminary guidance regarding potential peak water elevation at the coast is provided in the Shire of Margaret River Coastal Hazard Adaption and Management Action Plan (Shore Coastal 2015).

3.5.1.2 Wetlands

No wetlands of national or international significance were identified within the site or nearby.

The Geomorphic Wetlands Leeuwin Naturaliste Ridge and Donnybrook to Nannup (DBCA-043) and Geomorphic Wetlands South West (DBCA-040) indicates that there are no geomorphic wetlands identified within the site.

3.5.2 Groundwater

3.5.2.1 Groundwater levels

The site is found within the Busselton-Capel Groundwater Area and the Cape to Cape North subarea. Information on the regional groundwater resources obtained from the Water Register (DWER 2019) This groundwater subarea is composed of two aquifers, the surficial and fractured rock, both of which rely on rainfall for recharge.

Limited regional groundwater level information is available and no site-specific groundwater monitoring has been undertaken to date. However, during the geotechnical investigation (CMW Geosciences 2018) there was no groundwater encountered within the test pit locations completed

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during the investigation (varying in depth from 0.5 m to 3 m). The lowest elevation test pit was TP10 which was at an elevation of approximately 5 m AHD. TP10 was 2.4 m deep and did not encounter groundwater. It is anticipated that groundwater is likely to be confined by the underlying weathered granite which would act as a low permeability aquitard. Groundwater would then likely fluctuate within the overlying sand / limestone throughout the seasons, flowing from the elevated south towards the river. The locations of test pits and test pit logs are contained in Appendix B.

Based on the site observations, geotechnical information and presence of Margaret River, groundwater is inferred to be at or below 2.6 m AHD, and will be >2.4 m below ground level (BGL) beneath the majority of the site.

3.5.2.2 Groundwater quality

There is no groundwater quality data available for the site, however shallow groundwater has historically been utilised to irrigate landscaped portions of the site, and the condition of irrigated vegetation is excellent (from a plant health perspective). Based on this, it is inferred that the quality of groundwater is appropriate for long term irrigation of vegetation and landscaped areas.

3.6 Existing and historical land use

A review of available historical aerial imagery indicates that a majority of the site was cleared of native vegetation prior to 2004 (Landgate 2018). The site historically supported one of the original farms and homesteads built by the Bussell family (known as ‘Wallcliffe House’) with construction of the buildings commenced in 1858. The site included a number of large sandstone buildings, dairy and ancillary buildings, as well as a significant mature cultivated garden. It has supported agricultural, residential and tourism land uses since 1858.

The existing buildings within the site were destroyed by a bushfire in 2011. They include the original Wallcliffe House (built between 1855 and 1865) in the centre of the site and the dairy located to the north-east of the original Wallcliffe House. West of Wallcliffe House was a large dwelling (the former Chaney Residence) which was built in the early 2000s. South of the large dwelling is a rectangle building which was possibly used as a service building.

The developed portion of the site (around the existing buildings) has been earthworked and retained (terraced) to create flat building platforms, lawns and garden beds. Immediately north of the dairy is an extensive area of grassed lawn and a man-made dam. South and east of the dairy the elevation of the site rises relatively steeply.

The site has not been used for residential or tourism purposes since the 2011 Margaret River bushfire significantly damaged the buildings discussed above, however, the gardens and grounds have continued to be maintained to a high standard since this time.

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3.7 Summary of existing environment

In summary, the environmental investigations conducted to date indicate that:

• Long term climatic averages indicate that the site receives 1,046 mm on average annually with the majority of rainfall received in May to August • The site slopes towards Margaret River with an average grade between 10-15%. Existing ground levels range from 2 m AHD to 64 mAHD • The site soils include limestone outcrops/pinnacles at various locations, surficial layers of fill overlying sand or limestone, natural dune sand and shallow layers of sand overlying clayey sand associated with weathering of granite (in the eastern portion of the site adjacent to Margaret River) • Soil permeability ranges between 3 m/day to 8.5 m/day • The site is not identified as having any risk of ASS based on the available regional mapping and is unlikely to be a consideration based on the site characteristics • Given the proximity to the coast (located 600 m west of the site), assets either below the 5 m AHD contour or at a horizontal distance of 200 m from the coast may potentially be exposed to coastal processes such as storm surge and inundation based on the outcomes of the CHRMAP • There are no waterways or surface flow channels present on site, and runoff is likely to infiltrate within the site at or close to source • The site is immediately adjacent to the Margaret River and associated riparian vegetation • There are no wetlands located within the site • Groundwater levels beneath the site are inferred to be at least 2.4 m BGL • Historical land use of the site has included low density agriculture, a residence and tourism- related purposes.

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4 Design Criteria and Objectives

4.1 Integrated water cycle management

The State Water Strategy (Government of WA 2003b) endorses the promotion of integrated water cycle management and application of water sensitive urban design (WSUD) principles to provide improvements in the management of stormwater, and to increase the efficient use of other existing water supplies.

The key relevant principles of integrated water cycle management include:

• Considering all water sources, including wastewater, stormwater and groundwater • Integrating water and land use planning • Allocating and using water sustainably and equitably • Integrating water use with natural water processes.

Integrated water cycle management addresses not only physical and environmental aspects of water resource use and planning, but also integrates other social and economic concerns. Design objectives for Wallcliffe House will deliver best practice outcomes in terms of:

• Potable water supply • Wastewater servicing and management • Non-potable water supply • Surface water management • Groundwater management • Flood protection.

The first step in applying integrated water cycle management in catchments is to establish agreed environmental values for receiving environments. The existing environmental context of the site has been discussed in Section 3 of this document. Guidance regarding environmental values and criteria is provided by a number of National and State policies and guidelines and site specific studies undertaken in and around the site, as detailed in Section 1.4.

The design criteria discussed in the following sections are based on the assessment of the existing environment within the site, with the aim of achieving the outcomes discussed above.

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4.2 Water supply and wastewater management

This WMS proposes the following water supply and wastewater management design criteria:

Criteria WC1 Use appropriate non-potable water sources for irrigation

Criteria WC2 Minimise potable water use

Criteria WC3 Ensure appropriate management of wastewater

The manner in which these objectives will be achieved is further detailed in Section 5 and Section 6.

4.3 Surface water management

The principles behind surface water management at the site are to ensure surface water is appropriately treated and that Margaret River (as described in Section 3.5) is not detrimentally affected by the development. This WMS proposes the following stormwater design criteria:

Criteria SW1 Floor of habitable buildings to at or above the elevation identified to mitigate future coastal processes risk

Criteria SW2 Manage the small rainfall event runoff at source

Criteria SW3 Manage runoff from minor and major rainfall events to control erosion

Criteria SW4 Adopt a passive at-source approach to stormwater management infrastructure

Criteria SW5 Utilise appropriate non-structural measures to reduce nutrient loads

The manner in which these objectives will be achieved is further detailed in Section 7.

4.4 Groundwater management

This WMS proposes the following groundwater management criteria:

Criteria GW1 Stormwater infiltration infrastructure to be located at least 500 mm above highest known groundwater level

Criteria GW2 Buildings to be protected from groundwater inundation

The manner in which these objectives will be achieved is further detailed in Section 8.

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5 Water Supply and Wastewater

5.1 Fit for purpose water use

Conservation of water through fit-for-purpose use and best management practices is encouraged so that water is not wasted. Fit-for-purpose principles have been utilised in the water conservation strategy for the site.

5.1.1 Potable supply

The site is serviced by potable water from the Water Corporation’s supply network, and is currently delivered via a 150 mm distribution pipeline located along the eastern side of the Wallcliffe Road reserve. The site currently has a 20 mm diameter domestic connection, which will need to be increased to suit the proposed development. The development will require a suitably sized header tank designed to maintain supply for a stipulated period of time during a power-outage.

5.1.2 Groundwater

The Water Register (DoW 2019) indicates that the site is located in the Busselton-Capel groundwater area, within the Cape to Cape North subarea. The formation beneath the site is recorded as the Combined Leeuwin Surficial/fractured rock aquifer, and there is ‘limited information’ available regarding the allocation status of this resource.

The irrigation system on the site is currently supplied from two low-yielding and shallow bores positioned into the surficial aquifer. One bore is near the dam in the northern portion of the site and the other is near the south western corner. Extracted groundwater is pumped to two tanks located west of Wallcliffe Road near the access driveway into the site. These two tanks then irrigate the site by gravity. The irrigation system has historically been operated three days per week in summer and anecdotally the tanks rarely if ever run dry.

The site is approximately 5.2 ha in size and is approximately 50% irrigated. On this basis the historical water use of water at the site may be up to 18,000 kL/annum. Future irrigation water demand is likely to be similar to the historical use. DWER have advised that the use of groundwater will need to be licensed as per the requirements of the Rights in Water and Irrigation Act 1914, and this requirement will be met prior to implementation of the proposed development.

The irrigation system inclusive of bores is proposed to be preserved and modified as may be needed to suit the development of the site.

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5.1.3 Stormwater harvesting

The roof areas of the proposed development provide an opportunity to harvest rainfall for later non- potable uses within the site. To do so would likely require localised collection from each roof area and harvested water would need to be pumped to a central storage location. This could potentially be combined with groundwater abstracted form the superficial/fractured rock aquifer and will be considered as part of the proposed development.

5.2 Water conservation measures

Waterwise gardening (WWG) principles, and water efficient fixtures and appliances will be used to ensure that the development minimises the use of water overall, as well as implementing alternative fit-for-purpose supply options (discussed in Section 5.1).

5.2.1 Water efficient fixtures and appliances

Significant reductions in internal water uses can be achieved with the use of water efficient fixtures and appliances. The site will utilise water efficient fixtures and appliances in all buildings.

5.2.2 Waterwise gardens

The development will undertake a variety of waterwise gardening (WWG) measures to limit water use. The following methods and approaches will be considered:

• Maintain the existing established landscaped areas, which will minimise disturbance to the site, water use and nutrient requirements typically required to establish such areas. • Retain existing native vegetation wherever possible. • The adoption of water wise species, with a focus on using local native water wise species or if necessary species from regions with similar climates. • Additional turf areas to be minimised where possible.

Irrigation requirements across the site will be minimised by utilising WWG practices in all planted areas. Where possible, planting will occur during winter in all development landscaped areas to remove the need for establishment irrigation and maximise plant survivability. It is noted that much of the site already contains mature landscaped areas, and the establishment phase is anticipated to be limited to areas that may be disturbed as part of construction and/or are associated with the new buildings.

Irrigation will utilise the fit-for-purpose sources detailed in Section 5.1, thus achieving Criteria WC1 and WC2.

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6 Wastewater Management Strategy

The site was historically served by on-site domestic-scale treatment units. These systems will be located then suitably and properly decommissioned. Development of the site will increase the demand for wastewater collection and disposal and there are two potential approaches that could be adopted. Neither has been confirmed as the preferred approach at this stage and the investigations are still underway. The following sections discuss the potential options and likely requirements of each.

Regardless of the disposal methodology adopted, wastewater will be collected from each new building by means of gravity property sewers to one or several small pump stations that each in turn will pump the wastewater to a single facility.

6.1 Connection to Water Corporation existing wastewater system

The nearest potential outfall to accept wastewater pumped from the site to the Water Corporation operated Prevelly wastewater treatment plant is an existing wastewater pump station located opposite and to the west of the intersection of Chuditch Place and Bandicoot Close, approximately 2.5 km south of the site (referred to as the ‘Chuditch Place PS’). A private pressure main would be required to be installed and located along the road reserves of Wallcliffe Road then Chuditch Place. This would discharge into the wastewater system near the Chuditch Place PS. The Water Corporation have indicated that the proposal may be feasible however it would depend on there being capacity in their system to accept the pumped flows. A more specific analysis would be undertaken to confirm that there is capacity at an appropriate time during the detailed design phase.

6.2 Onsite wastewater treatment plant

An Activated Sludge Bioreactor Plus (ASBR+) package wastewater treatment plant (WWTP) is likely to be the preferred type of system that could be used. These are capable of treating domestic strength wastewater to achieve high quality (i.e. Class A+) treated effluent suitable for reuse in non-potable applications. The treated water could therefore be reused by above-ground spray irrigation.

Based on the typical specification for this type of system, an ASBR+ package WWTP could reduce total nitrogen (TN) to less than 10 mg/L and total phosphorus (TP) to 1 to 2 mg/L. If spray irrigation is applied, this may increase the uptake of nutrients when compared to below ground disposal.

Reusing the water within the irrigation system tanks would mix treated water with pumped groundwater, thereby reducing demand for pumping groundwater from the two surficial groundwater bores.

The project team acknowledges that if an onsite package WWTP is adopted, appropriate management of nutrients and health considerations will need to be demonstrated to the satisfaction of the DWER, Shire of Augusta Margaret River (SAMR) and Department of Health (DoH).

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6.3 Other considerations

Backup electricity and suitable buffer-storage tanks would be incorporated into the wastewater system (i.e. for both options) to avoid any risk of overflow spillage entering the environment (in particular Margaret River) in case of a breakdown of part of the system. With both options, maintenance contracts will be set up to ensure response times are stipulated and guaranteed and the system is then designed to suit this. Further detailed designs/studies will consider costs, benefits, fail-safes, and long-term management of either system.

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7 Stormwater Management Strategy

Stormwater runoff from the site is already being managed at source, and in accordance with best practice. The access road to the site for example is unkerbed and runoff sheet flow moves away from the pavement into the adjoining landscaped or natural bush areas. This has ensured that direct discharge of runoff to Margaret River does not occur.

7.1 Site stormwater management measures

The stormwater management strategy proposed for the site is to retain and treat the small event runoff at source, with larger events infiltrating locally in surrounding permeable areas. The stormwater management approach has been determined in consultation with Shire of Augusta Margaret River and DWER, and is consistent with the historical approach taken within the site.

The proposed development will lead to some additional impermeable surfaces, mainly associated with the rooves on new buildings (e.g. the workshop and carparking areas). However, this is unlikely to change the peak runoff rates significantly, even in a major storm event. Water Sensitive Urban Design (WSUD) practices will be adopted in the design of the stormwater management system. WSUD elements to be adopted include:

• Soakwells. Roof runoff will be captured and infiltrated in soakwells or may be harvested for onsite use. Runoff exceeding the capacity of these measures will be conveyed on the surface to the nearest surrounding permeable portion of the site where it will infiltrate. • Surface based flow. All pavement areas will be graded, shaped and managed to dispose of runoff by surface/sheet flow without the need for a formal piped network. • Localised infiltration. Low profile sheet flow over natural or artificial landscaped surfaces will largely avoid the need for large bio-retention or detention basins. • Vegetated swales adjacent to road pavement. The exception to this may be some minor vegetated swales immediately adjacent to higher use pavement areas (i.e. the main access road into the site or parking areas). These would be designed to capture and treat the minor amounts of hydrocarbons and sediments that may occur on these areas. • Erosion control. Localised areas adjacent to pavement may require some minor erosion control, particularly where the pavement is steep. These would likely take to form of rock spawls or local material shaped to slow down runoff and to avoid erosion. • Localised direction to infiltration areas. Where required, some localised pavement areas may be collected via gully grate and directed to soakwell/subsurface infiltration as currently occurs on site.

No direct discharge of any runoff to Margaret River currently occurs, and this is not planned or contemplated for the development of the site.

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7.2 Impacts to Margaret River

All drainage and erosion control structures will be located within the site boundary and will not extend into the Margaret River and associated riparian vegetation (which is largely outside the site boundary). New planting and landscape treatments within the site will be provided consistent with the treatment requirements of the structures and in consideration of the vegetation within the site, surrounding area and the Margaret River to ensure protection of these values.

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8 Groundwater Management Strategy

The principle behind the groundwater management strategy for the site is to manage the potential for groundwater to rise post-development and maintain or improve groundwater quality.

8.1 Groundwater level management

As discussed in Section 3, the underlying groundwater is at least 2.4 m BGL for most of the site. The site will not require active groundwater controls. Rather, buildings and the base of any infiltration structures will all easily achieve an appropriate clearance above groundwater, on the basis that the habitable floor of buildings will be above the elevation identified for future coastal hazard risk, which is much higher than known groundwater.

8.2 Groundwater quality management

The main objective of the management of groundwater quality is to maintain or improve the existing groundwater quality. This can be achieved by reducing the total nutrient load to groundwater from sources within the development and via treatment of surface runoff prior to infiltrating to groundwater.

The reduction of nutrient loads to groundwater will be achieved by the following measures:

• Ensuring that the wastewater approach considers and appropriately treats nutrients, such that these do no leach to groundwater. • Retain existing landscaped areas and native vegetation wherever possible. • Apply WWG principles to design of additional landscaped areas. • Minimise fertiliser use to establish and maintain vegetation within existing and new landscaped areas. • Direct stormwater to vegetated swales/permeable portions of the site.

As previously mentioned in Section 3.5.2.2, there is no baseline groundwater quality data available for the site to compare to, but groundwater quality can be protected through the measures outlined above and through the appropriate management of wastewater (as outlined in Section 6) and the management of stormwater (as outlined in Section 7).

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9 Management and Maintenance Plan

9.1 Management objectives

The design and construction of WSUD features will been undertaken in a manner that promotes the long-term health of the structural measures. These often require active ongoing management, particularly in the first years after construction, to ensure that they continue to provide their intended functions. This also incorporates a monitoring regime to provide guidance to the management actions which will ensure that the overall objectives are met. The overall management objectives are to:

• Maintain the wastewater treatment system and any associated irrigation area (where applicable) to minimise nutrients being discharged to the environment. • Maintain WSUD features including vegetated swales and erosion control measures. • Minimise ongoing water use. • Ensure that the system remains in an appropriate and sustainable condition.

The overall objective will be achieved through the implementation of a number of management actions that will be carried out at regular intervals. As the works are part of a private development with no areas to be handed over to the Shire of Augusta Margaret River, no timeframe for continuation of management and maintenance is specified, however the proponent commits to maintaining the development to the level detailed in this WMS. The key areas that will be addressed through the implementation of this management plan include:

• Construction • Nutrients and water quality • Erosion and sediments.

9.2 Construction

Prior to earthworks being approved by the Shire of Augusta Margaret River, a Construction Management Plan (CMP) will be required to be undertaken to detail how certain matters will be managed, including:

• Construction methodology for areas in close proximity to the Margaret River in the west or Wallcliffe Nature Reserve to the south • Exclusion of construction, clearing and general access to the Margaret River and Wallcliffe Nature Reserve • Erosion and sediment transport • The delivery of materials and equipment to the site • The storage of materials and equipment on the site • Other matters likely to impact on surrounding properties • Management of construction waste • Dust mitigation.

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9.3 Nutrient and water quality

Nutrient inputs will be managed to ensure that the water quality leaving the site is appropriate. Ongoing measures that will be utilised to control nutrient inputs and therefore groundwater quality will include:

• Use of slow release fertilisers where appropriate • Use of appropriate monitoring/testing to inform fertiliser application (e.g. visual monitoring, leaf and tissue analysis, etc.) • If applicable, monitoring and management of any treated wastewater that may be used/infiltrated within the site to ensure that it meets expected water quality parameters • Ongoing maintenance of wastewater management systems to ensure that the outputs meet the required specifications.

9.4 Erosion and sediments

The ongoing management and maintenance of the stormwater management system will include:

• Periodic visual inspection of the vegetated swales, infiltration systems (soakwells) and the entire site for erosion and sedimentation • Removal of built-up sediments in response to observations • Repair of any significant erosion in response to observations.

9.5 Monitoring and maintenance

The overall condition of the development and wastewater treatment system will be monitored during regular maintenance which will be implemented after the completion of the civil and landscaping works and will be ongoing.

Visual assessments will be regularly undertaken to monitor the overall condition of the development, with the aim to ascertain that the maintenance activities (as detailed in Section 9) are achieving the management and maintenance objectives. The monitoring undertaken will guide/refine the maintenance of the site.

The site maintenance and management will remain the responsibility of the proponent. Once the concept design and approach to servicing the site has been refined and detailed design progressed, a monitoring and maintenance schedule will be developed and implemented. The monitoring and maintenance schedule will address issues such as:

• Fertiliser application regime • Weed management and removal • Turf management • Sediment management • Erosion management.

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10 Implementation Plan

10.1 Reporting

If an onsite wastewater treatment plant is proposed there may be the requirement to undertake ongoing monitoring and to prepare and implement a maintenance schedule. If relevant, monitoring and reporting of the wastewater treatment system will occur to ensure the specifications are in line with any required approval and operating licence. No other reporting is proposed.

10.2 Roles and responsibilities

This WMS provides a framework that the proponent can utilise to assist in implementing an integrated water cycle management strategy that has been based upon site-specific investigations and is consistent with relevant State and Shire of Augusta Margaret River policies. The responsibility for working within the framework established within this WMS rests with the proponent.

10.3 Funding

As the site constitutes a single landholding, the development will be funded by the proponent.

10.4 Review

This WMS is not proposed to be reviewed unless the proposed development undergoes significant change (i.e. increase in impervious areas throughout the site) post-lodgment of the WMS. If the development is substantially modified, drainage requirements may need to be reviewed and the criteria proposed revised to ensure that all are still appropriate.

10.5 Water management for future development stages

The subsequent development stage is likely to be a Development Approval application. The application would be accompanied by a further refined concept plan. It is anticipated that the subsequent approval will include a number of conditions, and this may include conditions which seek to clarify the water management approach at the site, inclusive of the approach to wastewater management. This can potentially be addressed within a water management plan or similar (which may include detailed civil design drawings only) and would refine and further detail the approaches proposed in this WMS.

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11 References

11.1 General references

Australian and New Zealand Environment and Conservation Council and Agriculture and Resource Management Council of Australia and New Zealand (ANZECC and ARMCANZ) 2000, Australian and New Zealand Guidelines for Fresh and Marine Water Quality, National Water Quality Management Strategy, Commonwealth of Australia, Canberra.

CMW Geosciences 2018, Proposed Building Development Wallcliffe House Geotechnical Investigation Report.

Department of Minerals and Energy (DME) 2000. Regolith-Landform Resources of the Cowaramup- Mentelle. 1:50,000 Sheet. Geological Survey of Western Australia. Western Australia.

Department of Planning Lands and Heritage (DPLH) 2019, Government Sewerage Policy.

Department of Premier and Cabinet 2007, State Water Plan. Government of Western Australia.

Department of Water (DoW) 2007, Stormwater Management Manual for Western Australia, Department of Water, Perth.

Department of Water (DoW) 2008, Margaret River Hydrology Summary. Surface Water Hydrology Series. Report No. 27.

Department of Water and Environmental Regulation (DWER) 2017, Decision Process for Stormwater Management in Western Australia, Government of Western Australia, Perth.

Engineers Australia 1987, Australian Rainfall and Runoff, National Committee for Water Engineering, Canberra.

Engineers Australia 2006, Australian Runoff Quality: A guide to Water Sensitive Urban Design, National Committee for Water Engineering, Engineers Australia, Canberra.

Engineers Australia 2016, Australian Rainfall and Runoff, National Committee for Water Engineering, Canberra.

Environmental Protection Authority (EPA) 2008, Guidance Statement No. 33: Environmental Guidance for Planning and Development, Environmental Protection Authority, Perth.

MJA Studios 2019, Wallcliffe House Design Principles Submission Scheme Amendment, unpublished report prepared for Wallcliffe House Pty Ltd

Shire of Augusta Margaret River (SAMR) 2018, Draft Margaret River Protection Strategy.

Shore Coastal 2015, Shire of Augusta Margaret River Coastal Hazard Risk Management and Adaptation Plan.

Western Australian Planning Commission (WAPC) 2006a, State Planning Policy 2.9: Water Resources, Gazetted in December 2006. Western Australian Planning Commission, Perth.

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Western Australian Planning Commission (WAPC) 2008, Better Urban Water Management, Western Australian Planning Commission, Perth.

Western Australian Planning Commission (WAPC) 2009, Planning Bulletin No. 64 Acid Sulfate Soils, January 2009, Perth.

Western Australian Planning Commission (WAPC) 2013, Planning Bulletin No. 83: Planning for Tourism.

11.2 Online references

Bureau of Meteorology (BOM) 2019, Weather and Climate Statistics, viewed 9 May 2019 .

Department of Water (DoW) 2019, Water Register, viewed 9 May 2019,

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Figures

Figure 1: Site Location

Figure 2: Topographic Contours

Figure 3: Soil Landscape Mapping

Figure 4: Acid Sulfate Soil Risk Map

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Appendix A Wallcliffe House concept plan

Appendix B CMW Geosciences Geotechnical Report

10 October 2018

PROPOSED BUILDING DEVELOPMENT WALLCLIFFE HOUSE, PREVELLY, WA

GEOTECHNICAL INVESTIGATION REPORT

Wallcliffe House Pty Ltd PER2018-0309AB Rev 0

www.cmwgeosciences.com

WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

PER2018-0309AB Date Revision Comments 3 October 2018 A Awaiting laboratory results 10 October 2018 0 Final review, laboratory test results added

CMW Geosciences Ref. PER2018-0309AB Rev 0 i WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

Table of Contents

1 INTRODUCTION ...... 1 2 SITE DESCRIPTION / WALK OVER SURVEY ...... 1 3 PROPOSED DEVELOPMENT ...... 1 4 FIELD INVESTIGATION ...... 2 5 GROUND MODEL ...... 2 5.1 Geology ...... 2 5.2 Subsurface Conditions ...... 2 5.3 Laboratory Test Results ...... 3 5.3.1 Particle Size Distribution ...... 3 5.3.2 Organic Matter Content ...... 4 5.3.3 Point Load Testing ...... 4 5.4 Groundwater ...... 4 5.5 Permeability ...... 4 6 GEOTECHNICAL ASSESSMENT AND RECOMMENDATIONS ...... 5 6.1 Geohazards ...... 5 6.1.1 Limestone Features and Karst Risk ...... 5 6.1.2 Uncontrolled Fill ...... 6 6.2 Karst Investigation ...... 6 6.3 Site Classification ...... 6 6.4 Earthworks ...... 6 6.4.1 Site Preparation ...... 6 6.4.2 Specific Ground Remediation ...... 7 6.4.3 Bulk Earthworks ...... 7 6.4.4 Excavatability ...... 8 6.4.5 Net Bulking Factors ...... 8 6.4.6 Retaining Wall Backfill ...... 8 6.5 Groundwater Monitoring...... 8 6.6 Temporary Retention ...... 8 6.7 Strip and Pad Foundations ...... 10 6.8 Subsoil Classification ...... 10 6.9 Soak Wells ...... 10 6.10 Floor Slabs ...... 11 6.11 Pavement CBR ...... 11 6.12 Further work ...... 11 7 CLOSURE ...... 12

CMW Geosciences Ref. PER2018-0309AB Rev 0 ii WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

Figures Figure 1 – Site Investigation Plan Figure 2 – Karst Risk Plan

Appendices Appendix A – Test Pit Logs Appendix B – Hand Auger Borehole Logs Appendix C – In-situ Permeability Test Results Appendix D – Laboratory Test Results

CMW Geosciences Ref. PER2018-0309AB Rev 0 iii WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

1 INTRODUCTION CMW Geosciences Pty Ltd (CMW) was authorised by Walllcliffe House Pty Ltd to carry out a geotechnical investigation of Wallcliffe House located off Wallcliffe Road, Prevelly, WA by way of a signed authorisation dated 4 September 2018. The scope of work and associated terms and conditions of our engagement were detailed in our services proposal letter dated 4 September 2018 (Ref: PER2018-0309AA, Rev 0). The purpose of this report is to describe the investigation completed, the ground conditions encountered and to provide recommendations with respect to geotechnical aspects of the proposed building development including potential geo-hazards and likely remediation options, site drainage and a preliminary site classification.

2 SITE DESCRIPTION / WALK OVER SURVEY The proposed development site comprises an area of approximately 5.0ha located on the southern bank of the Margaret River, off Walcliffe Road, Prevelly, WA. The site slopes down from Wallcliffe Road to the north towards the river. Existing ground levels range from approximately RL 40m to 2m AHD. The existing buildings for the site were destoyed by a bush fire in 2011 and are in ruins. They include the old Wallcliffe House (built between 1855 and 1865) in the centre of the site (approx. FFL RL14.3m AHD) and the Dairy House (approx. FFL 7.5m AHD), north-east of the old Wallcliffe House. West of the old house is a large dwelling (the former Chaney Residence, approx. FFL 14.0m AHD) which was built in the early 2000’s. South of the large dwelling is a rectangle building (approx. FFL 21.65m AHD) which was possibly used as a service building for the property. This building has been set back into the adjacent limestone hill with the limestone retained by a wall up to 3m high. The developed portion of the property (around the existing dwellings) has been earthworked and retained (terraced) to create flat building platforms, lawns and garden beds. Immediately north of the Dairy House and extensive grassed lawn area gives way to a manmade dam. South and east of the Dairy House the site rises relatively steeply from the edge of the lawn to the south. On this natural slope outcropping limestone was noted. Outcropping limestone was also noted south of the service building and east of the accessway at an elevation of approximately RL24m to 25m AHD. Anecdotal evidence suggests that groundwater seeps from the adjacent accessway between elevations of approximately RL21m to 22m AHD. The vegetation on the property typically comprises lawn areas and extensive garden beds with groves of established large trees. Beyond the developed portion of the site, to the south and east, the gardens give way to thickets of shrubs and trees and pastureland. Caves were observed in the limestone cliffs to the west and south-west of the site. The cliffs rise from the southern bank of the river. The caves were noted to occur at two separate elevations suggesting two separate historical ground water levels. A limestone cave was also observed east of the proposed development and west of the existing driveway. Anecdotal evidence suggests this cave was used as a cold storage area in the past. On the western side of the site towards the edge of the river, a large granite outcrop was noted.

3 PROPOSED DEVELOPMENT Based on the concept plans provided we understand the proposed development will comprise a 2 to 3 storey hotel development (including basement) with additional stand-alone accommodation units, a pool area plus associated accessways and service buildings. The plans indicate that the existing building footprints will be adopted for the new buildings. We also understand tunnels will connect the

CMW Geosciences Ref. PER2018-0309AB Rev 0 1 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

basements of the old Wallcliffe House, the New House and the service building / carpark to the south- west. The proposed construction will consist of the natural local limestone blocks as well as masonry, timber framing and rammed earth.

4 FIELD INVESTIGATION Following an online dial before you dig enquiry, the field investigation was carried out between 11 and 12 September 2017. All fieldwork was carried out under the direction of CMW Geosciences Pty Ltd in general accordance with AS1726 (2017), Geotechnical Site Investigations. The scope of fieldwork completed was as follows:  Undertake a walkover survey of the site to assess the general landform and site conditions;  Nine hand auger boreholes, denoted HA01 to HA09, were drilled using a 100mm diameter auger to target depths of up to 2.4m below existing ground levels to visually observe the near surface soil profile and to facilitate in-situ permeability testing (at two locations). Hand auger borehole tests HA01 and HA02 refused on limestone cobbles at shallow depth. Engineering logs of the hand auger boreholes are presented in Appendix A;  Twelve test pits, denoted TP01 to TP12, were excavated using an 8.5 tonne hydraulic excavator, fitted with a 600mm wide toothed rock bucket, to depths of between 0.5m and 3.0m below existing ground levels. Several of the test pits were terminated due to refusal on limestone. Engineering logs and photographs of the test pits are presented in Appendix A;  Dynamic Cone Penetrometer (DCP) tests were carried out adjacent to selected test pits and hand auger boreholes in accordance with AS1289.6.3.2, to depths of up to 2.1m to provide soil density profiles. Graphical results of the DCP testing are presented on the hand auger borehole and test pit logs in Appendix A and B respectively;  In-situ falling head infiltration tests were completed in cased hand auger holes established in HA03 and HA07. Results of the infiltration tests are presented in Appendix C. The approximate locations of the respective investigation sites referred to above are shown on the attached Site Investigation Plan (Figure 1). Test locations were measured using a hand held GPS with an accuracy of about ±5m. Elevations were inferred from the feature survey plan provided.

5 GROUND MODEL

5.1 Geology The published geological map (Western Australia 1:50000 Regolith-Landform Resources Series, Cowaramup – Mentelle first edition 2000) for the area depicts the land as being underlain by the Leeuwin Complex comprising fresh to weathered Granite. It also indicates the hills immediately to the west of the site comprise the Spearwood Dunal system, sand over calcarenite (coarse grained limestone). Based on the known history of the site and surrounding land levels, some uncontrolled fill is anticipated because of previous earthworking across the site to create level platforms for buildings, lawns and garden beds.

5.2 Subsurface Conditions The ground conditions encountered and inferred from the investigation were broadly inline with the published geology for the area, however the distribution of the Spearwood Dunal system extended east across the site and granite was only observed towards the riverbank on the western side.

CMW Geosciences Ref. PER2018-0309AB Rev 0 2 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

Shallow pinnacled limestone with sand was observed in test pits TP02, TP03, TP11 and TP12 towards the western boundary of the site within and adjacent to the footprint of the proposed service building. The limestone was observed to be very low to high strength. North of the proposed service building, near the base of an existing retaining wall, on the alignment of the tunnel proposed to join the former Chaney Residence, a surficial layer of fill was observed overlying sand and limestone. Given the surrounding natural contours, it is likely that this was an area of cut during the construction of the Chaney Residence. It is important to note that fill to a depth greater than 2m was observed within test pit TP04 comprising sand and limestone cobbles and boulders. The depth of sand was noted to be of different depths at either end of the test pit. As this area is likely a cut surface, a significant layer of fill is unusual and may provide evidence of a backfilled depression or cavity. Alternatively, this area may have been ripped to excavate the footing of the adjacent limestone gravity wall. Test pit TP05, further north away from the base of the retaining wall comprised 0.8m of sand overlying natural pinnacled limestone. Immediately north-east of the former Chaney Residence and extending to beyond the Dairy House, all test locations (TP05, TP06, HA02, HA03, HA05, HA07 and HA08) encountered loose to medium dense sand fill overlying natural dune sand to the maximum depth investigated of 2.8m. The sand (fill and natural) was logged as dark brown to black with fines and organics (<5% by weight). Sand over shallow limestone was encountered on the natural slopes south-east of the Dairy House (TP07) with outcropping limestone visible on adjacent portions of the slope. Further north, the limestone ceases to outcrop and a deeper (>1.2m) layer of sand was observed (HA09). Natural dune sand was observed to the depth investigated (up to 2.0m) in the north-eastern portion of the site, east of the existing pond and east of the existing boat house. In the eastern portion of the site towards the shore of the river a shallow layer of sand was observed overlying a clayey sand residual soil, associated with the weathering of the granite. It is anticipated this residual soil would slope up towards the south-east and underlie the sand and limestone encountered beneath the proposed development footprints. The interface between the sand / limestone and the underlying weathered granite was not observed adjacent to the proposed buildings.

5.3 Laboratory Test Results

5.3.1 Particle Size Distribution Results of the particle size distribution (PSD) laboratory tests provided in Appendix D are summarised in Table 1 below:

Table 1: Summary of PSD Laboratory Test Results

Test Depth Gravel Sand Fines Strata Location (mbgl) (%) (%) (%) TP06 1.0 Uncontrolled Fill (Sand) 0 90 10 TP08 0.5 Uncontrolled Fill (Sand) 0 94 6

Note: Gravel, sand and fines percentages are by weight.

CMW Geosciences Ref. PER2018-0309AB Rev 0 3 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

5.3.2 Organic Matter Content A total of 4 samples were initially tested for organic content. Samples were taken from the topsoil layer within test pits and from dark brown uncontrolled fill. Results of the organic matter content laboratory tests provided in Appendix D are summarised in Table 2 below:

Table 2: Organic Soil Test Results

Test Location Depth (m) Strata Organic Matter Content (%)

TP06 0.1 Topsoil 4.5 TP06 1.0 Uncontrolled Fill 3.2 TP08 0.1 Topsoil 5.0 TP08 0.6 Uncontrolled Fill 3.4

5.3.3 Point Load Testing A rock strength assessment of 24 limestone fragments collected from air core drilling was carried using point load index testing. The point load Is(50) results ranged from 0.17 MPa (very low strength) to 4.93 MPa ( high strength) with an average strength of 1.29 MPa (medium strength). The result varied between individual samples collected at each test location which is consistent with the variability that coastal limestone deposits exhibit. Results of individual point load tests are provided in Appendix D. Note a ratio of 5 to 10 was used to correct Is(50) to equivalent UCS on which strength in AS1726:2017 is based on.

5.4 Groundwater Groundwater was not encountered within the test locations completed during the investigation. It is anticipated that groundwater is likely to be confined by the underlying weathered granite which would act as a low permeability aquitard. Groundwater would then likely fluctuate within the overlying sand / limestone throughout the seasons, flowing from the elevated south towards the river.

5.5 Permeability Falling head permeability tests carried out in HA03 and HA07 were used to estimate the soil coefficient of permeability in accordance with the methods described in Hvorslev (1951). A coefficient of permeability of 8.5m/day was measured in HA03, and 3.0m/day was measured in HA07.

CMW Geosciences Ref. PER2018-0309AB Rev 0 4 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

6 GEOTECHNICAL ASSESSMENT AND RECOMMENDATIONS

6.1 Geohazards

6.1.1 Limestone Features and Karst Risk The geotechnical investigation results show that the depth to limestone varies considerably across the site with limestone caprock outcropping in several locations. These conditions and our experience in this geological setting suggest that pinnacle limestone exists across the site. Limestone pinnacles are typically associated with loose sand infill which results in a variable foundation surface. If left untreated, unacceptable differential settlements can arise from the settlement of footings located on loose sand, or partly on limestone and partly on sand. Section 6.3 below provides earthworks recommendations to assist in managing this risk. Based on the presence of limestone caves west of the site at similar elevations to the proposed main hotel buildings and the proposed service / carparking building there is a risk that these structures may be underlain by karst features including the formation of sinkholes. The general method of sinkhole formation in shallow limestone and sandy soil landscapes similar to those present within portions of the Wallcliffe House site are illustrated in Figure 1 below. Figure 1 - Classification of Sinkholes via Mechanism of Ground Failure (Waltham and Fookes 2003).

The caves observed to the south-west of the development site appear to be at similar elevations to the former Chaney Residence, the Old Wallcliffe House and the proposed service building and proposed tunnels. Based on the proximity of the caves and the presence of limestone in the subsurface profile, these footprints have been identified as higher karst risk zones as shown on the attached Karst Risk Plan (Figure No. 2). Further to the north-east, the natural slope east of the Dairy has been assessed lowerl karst risk area. The terminology “higher” and “ lower” risk describe the relative risk. It is important to note the Karst risk zones have been assessed for the proposed building areas only. These risk areas have been based on elevation, the general landform and the presence of limestone outcropping on the hillside. The Dairy, proposed pool area and the land immediately north of the boat shed has not been identified as a karst risk due to its lower elevation and the absence of limestone. It is anticipated that the sand

CMW Geosciences Ref. PER2018-0309AB Rev 0 5 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

profile observed at these locations is likely to underlain by weathered granite at depth. This assumption should be confirmed during the next phase of geotechnical investigation. The hazards associated with development within areas of Karst cannot be eliminated, but geotechnical investigation and design strategies can be adopted to reduce and manage the risks to acceptable levels. Additional investigation as outlined in Section 6.2 should be undertaken to assist in mitigating these hazards.

6.1.2 Uncontrolled Fill Uncontrolled Fill was encountered across some areas of the site as described in Section 6.2 above. Due to variable composition and condition, uncontrolled fill can result in unacceptable differential settlements. The composition of the uncontrolled fill encountered was relatively consistent and comprised a dark brown sand. DCP testing indicated that this material was typically borderline loose to medium dense. To assess if this fill can remain in-situ, additional classification and soil strength testing should be undertaken following building demolition as detailed in Section 6.4.

6.2 Karst Investigation To assess the risk of Karst beneath proposed buildings and infrastructure footprints, we recommended additional investigation is carried post demolition and clearing of the existing buildings and foundations. The investigation should be carried out in two stages. We recommended the first stage includes a Ground Penetrating Radar (GPR) survey of the proposed building footprints with the areas shown on the Karst Risk Plan attached as Figure No. 2. The second stage should include a provision for aircore drilling to assess anomalies reported following the GPR survey. This drilling will also provide additional redundancy in the assessment. The investigation and analysis must be carried out by a suitable qualified geotechnical professional.

6.3 Site Classification The AS2870 site classification for the site is summarised as follows:  Class A for the two proposed northern river units and the pergola area, which are underlain by clean sand;  Class P for the remaining proposed building areas due to the karst risk and the presence of uncontrolled fill. Earthworks must be undertaken in accordance with Sections 6.4 below.

6.4 Earthworks Based on the conceptual plans provided, earthworks are anticipated to include excavations of up to 3.0m to construct basements and cut and cover accessways. Cut and fill bulk earthworks are also anticipated to form level building footprints for proposed buildings. Recommendations associated with this work are summarised as follows:

6.4.1 Site Preparation We propose the following general recommendations for site preparation beneath building footprints:  All vegetation should be stripped and removed from the site;  Existing trees must be removed, and it must be ensured that their root systems are completely grubbed out. The soil beneath all tree root systems must be re-compacted and filled with compacted clean sand; and,

CMW Geosciences Ref. PER2018-0309AB Rev 0 6 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

 Topsoil, root mats, landscaping Geogrid or otherwise unsuitable organic material should be removed and cut to waste or alternatively reused in landscaping areas. A 150mm strip should be considered appropriate for most of the site.

6.4.2 Specific Ground Remediation

6.4.2.1 Outcropping Pinnacles with Loose Sand To limit the potential for differential settlements due to foundations spanning across different bearing strata, where limestone is encountered near the finished level, over excavation to at least 0.5m below underside of footing foundation level must be completed and backfilled with engineered fill to the specifications described below, except for structures which are located on continuous exposed limestone

6.4.2.2 Uncontrolled Fill Material Uncontrolled dark brown sand fill material beneath building footprints is likely to be suitable to remain in-situ subject to additional assessment following the demolition of the existing buildings. We recommend a series of hand auger boreholes and associated Perth Sand Penetrometers tests are carried out to assess the quality and condition of the fill. To leave the fill in place the composition must be found to be consistent with the finding of this report and it must compacted to a 95% maximum dry density.

6.4.3 Bulk Earthworks We recommend the following during earthworks:  Any temporary cut batters in natural sand or completely weathered limestone may be excavated to a gradient of up to 1V:1.5H (34 degrees) up to 3m high to maintain short term stability. Batter slopes greater than 3m must be benched. Loading near the crest of any temporary batter should be avoided. Cuts in medium strength limestone may be excavated to 2V:1H (63 degrees), subject to regular geotechnical observation during the works. Shallower grades may be required if the limestone is pinnacled or highly variable;  To limit the potential for differential settlements due to foundations spanning across different bearing strata, where limestone is encountered near finished level, over excavation to at least 0.5m below foundation level must be completed and backfilled with engineered fill to the specifications described herin, except for structures which are located on continuous exposed limestone;  Following topsoil stripping, the upper 300mm of exposed sand subgrade must be moisture conditioned and compacted with a suitable roller to achieve at least 7 blows per 300 mm penetration with a Perth Sand Penetrometer (PSP) in granular soils, which is equivalent to a dry density ratio of at least 95% based on Modified Compaction (AS1289 5.2.1). Any loose, soft, or organic materials observed during this proof roll shall be removed and replaced with compacted clean sand fill;  Sandy fill material must be moisture conditioned and compacted in layers not exceeding 300mm with a suitable roller to achieve at least 7 blows per 300 mm penetration with a PSP, which is approximately equivalent to a dry density ratio of 95% based on Modified Compaction (AS1289 5.2.1);  Site won material from proposed cut earthworks is considered suitable for use in bulk earthworks subject to the material being well graded, granular in nature, free of deleterious inclusions with a fines content of less than 12%, an organic content of less then 2% and a maximum particle size of 150mm; and

CMW Geosciences Ref. PER2018-0309AB Rev 0 7 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

 Imported bulk sand fill materials will need to be free of organic or deleterious inclusions with a fines content of less than 5% and a maximum particle size of 200mm.

6.4.4 Excavatability The natural sand encountered across the site may be excavated using standard mechanical plant. However, the limestone encountered exhibited variable strength with discrete very high strength caprock bands and generally ranges from medium to high strength rock. Due to the significant cut earthworks required to excavate the tunnels and basement, it is recommended that a large excavator (>30t) with rock breaking equipment is considered. All excavated materials are suitable for on-site re-use subject to crushing of the larger clasts and screening.

6.4.5 Net Bulking Factors Net bulking is the result of excavation, transport, placement and compaction of fill. As a general guide, a net bulking factor of 0.9 is anticipated during compaction of sand from a loose condition to 95% MMDD. For limestone, a net bulking factor of between 1.05 and 1.2 is estimated.

6.4.6 Retaining Wall Backfill We recommend the following during retaining wall backfilling:  Backfill layers should be placed in maximum 300 mm thick loose layers, moisture conditioned to within ±3% of the optimum moisture content and compacted with a suitable vibrating plate compactor to achieve a dry density ratio of at least 95% based on Modified Compaction (AS1289 5.2.1); and  Backfill must comprise the same material as the retained profile to reduce the risk of differential settlements. The technical and control requirements for Engineered Fill, including site observation and compaction testing, are outlined in AS3798. We recommend that this work. The over excavation of footings, is completed under the direction and control of a suitably experienced Geotechnical Engineer familiar with the contents of this report. CMW would be pleased to perform this function if required.

6.5 Groundwater Monitoring Groundwater was not observed during the investigation within the test pits and boreholes and it is unknown what maximum levels would be during the winter months. It is possible the groundwater flows along the interface between the weathered granite and limestone, but it is not known what depth this occurs. It is recommended that groundwater monitoring bores are installed assess within the footprints of the proposed basement areas to assess appropriate design groundwater levels.

6.6 Temporary Retention It is expected that the temporary retention system will also be utilised for the permanent ground support to the structure and propped by the internal floors when constructed. The shallow depth to limestone (in places) presents both benefits and risks to the construction of the basement and tunnel alignments. The limestone is expected to be stable under vertical excavation, but given the significant consequences of collapse, some form of engineered retaining wall is likely to be required unless the excavations have battered side slopes. We believe that the following basement retention options could be considered for this project, on the basis that the basement is formed above groundwater level:

CMW Geosciences Ref. PER2018-0309AB Rev 0 8 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

 Contiguous bored piles: This method is widely adopted in Perth for basements with variable depth of sand over limestone above groundwater level. The most significant risk of this method is the ‘kicking out’ of single piles due to variability in limestone strength.  King post wall: This will provide support to the limestone but may require grouting or the installation of planks between the king posts in the overlying sand.  In-situ Concrete wall (ICW): This technique can provide a permanent, stable load bearing wall and is an alternative to sheet piles. It may not be suitable in limestone areas if embedment is required beyond basement level. Design parameters for permanent and temporary retaining walls are summarised as follows:

Table 3: Retaining Wall Design Parameters

Soil Unit ϒ Ø’ K0 E’ No wall friction Wall friction = 2/3Ø 3 (kN/m ) (deg) (MPa)

Ka Kp Ka Kp

FILL 18 32 0.4 35 0.3 3.0 0.25 5.0 LIMESTONE* 19 40 0.8 80 0.24 4.0 0.2 8.0 Notes: 1. Refer to Table 2 for definition of soil unit levels

2. ϒ – soil unit weight; Ø’ - angle of internal soil friction; K0 - coefficient of earth pressure at rest, Ka -

coefficient of active earth pressure, Kp - coefficient of passive earth pressure; E’ – long term Youngs modulus.

3. Values of K0 are based on initial conditions following construction of the perimeter retention system.

4. The retaining wall designer must adopt the above set of Ka and Kp parameters relevant to the actual construction method adopted 5. The above parameters are based on the condition of a horizontal ground surface behind the retaining structure. Applicable surcharge loads behind the wall must also be considered in the design. *Alternative parameters could be considered for temporary retention relying on the cementation of the limestone.

It is important to note that weathered granite may be present within the design profile of retaining walls. It is recommended that in proposed basement and tunnel areas, deeper investigation is carried out to establish the interface between the limestone and weathered granite.

Retaining structures should be designed in accordance with AS 4678-2002 “Earth Retaining Structures” or an alternate approved factor of safety approach. Should any fill be placed against the permanent basement retaining wall after construction, it is expected that the compaction induced pressures will be much greater than the above active earth pressures. The compaction equipment used to compact backfill behind the wall must be carefully selected and preferably light-weight compaction equipment should be used. The load on the retaining wall due to compaction equipment may be estimated from Figure J5 in AS4678-2002 “Earth Retaining Structures”. It is noted that some ground movement will occur behind temporary or permanent retaining walls. By definition, movement of the wall must occur to fully mobilise the active and passive earth pressure coefficients provided in Table 3 above. The extent of this movement is dependent on the height of retaining, structure, type of wall selected and construction methodology. This must be considered during the design and construction of the retaining walls to ensure adjacent facilities are not adversely affected.

CMW Geosciences Ref. PER2018-0309AB Rev 0 9 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

6.7 Strip and Pad Foundations The design of preliminary allowable foundation bearing pressures for strip and pad footings at this site has been carried out using the Terzaghi bearing capacity equation. Subject to completing all the relevant earthworks and foundation preparation recommendations provided herein, shallow strip or pad footings founded within medium dense sand, with a footing invert no less than 3m above the groundwater table may be designed on the basis of the maximum allowable bearing pressures provided in Table 4. Note allowable bearing pressure should be confirmed following the assessment of the deeper soil profile.

Table 4: Summary of Shallow Footing Preliminary Design Bearing Pressure

Embedment Depth Footing Width Footing Length Allowable Bearing Pressure (m) (m) (m) (kPa)

0.3 strip 100

0.5 strip 120

0.3 1.0 strip 170

0.5 0.5 120

1.0 1.0 150

1.0 strip 210

0.5 1.0 1.0 200

2.0 2.0 250

1.0 strip 280

1.0 1.0 1.0 280

2.0 2.0 320

These values are based on a geotechnical strength reduction factor of 0.5 and an average load factor of 1.5 (Factor of Safety = 3.0). It must be noted that these bearing pressures assume isolated vertical, non-eccentric loads, and that earthworks are undertaken in accordance with Sections 6.1 and 6.4. It has been calculated that the total elastic settlement of the footing configurations and design pressures outlined in Table 4 above is unlikely to exceed approximately 25mm. Differential settlements are unlikely to exceed approximately one half of these values.

6.8 Subsoil Classification Based on our understanding of the general geology beneath the site, the results of our investigation and the recommendations provided in AS1170.4-1993, a site subsoil class of Ce (shallow soil site) to Section 4.2 of AS1170.4 is recommended for seismic design purposes.

6.9 Soak Wells On-site soakwells may be designed on the basis of a soil coefficient of permeability of 3.5 x 10-5 m/sec (3m/day) in sand and sand fill subject to being located a distance of at least 3m away from any building foundations. Past experience with Limestone indicates highly variable permeability rates ranging from less than 0.1m/day to in excess of 10m/day depending on the localised conditions of the limestone.

CMW Geosciences Ref. PER2018-0309AB Rev 0 10 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

For drainage design, it must be noted that a build-up of silt, oil and organic material over time may form a clogged layer within the floor and walls of the soak well and reduce the effective infiltration performance. It is therefore recommended to adopt a lower design permeability value than indicated by the field testing to allow for the development of a clogged layer within soak wells. It is also recommended that the permeability of the ground is reassessed once locations of drainage infrastructure are determined.

6.10 Floor Slabs On the basis that appropriate levels of compaction are maintained during site preparation, as described in Section 6.4, an average long-term Young’s Modulus value of 40MPa is considered appropriate for the soils below at grade (non-basement) floor slabs with respect to the design of a proposed slab-on-ground. A long term Youngs Modulus of 60MPa is recommended for the compacted subgrade for the design of the proposed basement floor slab.

6.11 Pavement CBR Based on the in-situ test results across the site, it is recommended that pavements be designed on the basis of a subgrade CBR value of 12%. This design CBR value is subject to the exposed subgrade being moisture conditioned and compacted in accordance with the recommendations provided in Section 9.5. It is recommended that QA / QC testing be undertaken on subgrade materials during construction.

6.12 Further work The above investigation has provided a broad understanding of the ground conditions present across the site, however, it should be noted that there are still a number of unknowns which may be relevant to the proposed development. In particular, these include:  The depth to the interface between limestone and the underlying weathered granite;  The depth of weathering in the granite; and,  The groundwater level during the winter months. If the weathered granite is relatively shallow (3m to 5m depth) it will have an influence on ease of excavation, retaining wall design parameters, allowable bearing pressures, design infiltration rates and retaining wall options. Shallow granite in excavations will likely require application of rock breading equipment. We recommend deeper investigation carried out as part of a Phase 2 geotechnical investigation to assist in refining the ground model. In addition to the above, Sections 6.4.2.2 and 6.5 recommend additional works to assess uncontrolled fill beneath the existing building footprints.

CMW Geosciences Ref. PER2018-0309AB Rev 0 11 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

7 CLOSURE The findings contained within this report are the result of limited discrete investigations conducted in accordance with normal practices and standards. To the best of our knowledge, they represent a reasonable interpretation of the general condition of the site. Under no circumstances, can it be considered that these findings represent the actual state of the ground conditions away from our investigation locations. If the ground conditions encountered during construction are significantly different from those described in this report and on which the conclusions and recommendations were based, then we must be notified immediately. This report has been prepared for use by Wallcliffe House Pty Ltd in relation to the proposed Wallcliffe House Development, Prevelly, WA in accordance with generally accepted consulting practice. No other warranty, expressed or implied, is made as to the professional advice included in this report. Use of this report by parties other than Wallcliffe House Pty Ltd and their respective consultants and contractors is at their risk as it may not contain sufficient information for any other purposes.

For and on behalf of CMW Geosciences Pty Ltd

Matt Watts Phil Band Senior Engineering Geologist Principal Geotechnical Engineer

Distribution: 1 copy to Wallcliffe House Pty Ltd Group (electronic) Original held by CMW Geosciences Pty Ltd

CMW Geosciences Ref. PER2018-0309AB Rev 0 12 WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

Figures

CMW Geosciences Ref. PER2018-0309AB Rev 0 PROPOSED RIVERSIDE UNITS

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SITE LOCATION 6 68 7 61 0 0 . BOAT HOUSE 6

0 0 71 11 29 .

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4 03 1 8 55 70 3 79 68 69 11 38 0 0 . 8

9 48

14 02

3 25 8 01

67 12 77

11 38

51 52 9 51

HA06 13 91

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0 . 15 06 DAIRY / PROPOSED ACCOMMODATION 3 03 0

1 12 20 50 66 3 04 SHED FL 3.7 PROPOSED POOLSIDE PERGOLA 3 21 5 16 5 16 3 43

54 5 14TRACK 13 62 53 15 00

00 0 4. 0 . 6 1

5 09 4 28 5 09

0 0 0 . 0 DAM . 6 5 30 4 1 5 19 AREA

TP09 1 16 74 5 36 0 65 . 0

0 6 26 5 51 6 54

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0

OLD WALLCLIFFE HOUSE / . 2 24 8 10 55 57 6 81 5 58 5 58 PROPOSED HOTEL BUILDING 6 71 56 5 85

55 0 0 0 0 7 45 . . 6 96 2 8 SHED 1 1 6 47 FL 4.75 HA09 7 62 5 16 64 1 64 18 84 7 59 6 13 POWER STEPS 1 99 7 93 METER 7 43 5 58 48 11 62 MARGARET RIVER 8 39 47 6 18 0 0 7 80 . 0 1 49 HA05 7 21 40 43 0 .0 PROPOSED STAND ALONE 6 58 63 6 STEPS 62 1 300D PVC ACCOMMODATION AREA STEPS 0 .0 DS: 1.98 DAIRY 7 46 61 0 HOUSE 2 39 60 TIMBER 45 46 TP08 RETAINING 10 37 WALL LOT 101 44 7 83 14 06 DP 49026 19 40

0 36 5.2494 Ha STEPS 0.0 20 68 FORMER CHANEY RESIDENCE / 7 86 1 59

PROPOSED HOTEL BUILDING 35 HA04 0 EDGE . 0 WATERS 11 54 8 1 37 0 .0 6 .00 11 54 1 2 34 11 96 42 2 1 2 11 97 58 . 41 00 2 33 15 70 38 33 8 16 HA08 72 0 .0 2 88 11 92 14

6 92 2 62 32 73 11 97 77 TP07 14 06 OLD BUILDING 00 8. APX. FFL 14.3 00 1 00 16. 76 4. 14 09 2

13 18 2 38 74 13 18 HA03 TRACK STEPS 78 SHED 14 07 75 31 14 09 TRACK 7 02 25 02

STEPS 0 6 31 0 17 18 . HA07 91 4 0 1 17 71 .0 2 32 STEPS 20 90 11 25 89 1200x400 BOX 88 87 US: 3.15 86 DS: 2.78 84 85 18 14 83 17 13 82 18 25 81 29 HA02 80 0 18 25 79 .0 17 75 4 TP06 2 1200x400 BOX 18 07 US: 5.85 BM NAIL 10 35 NEW BUILDING 92 APX. FFL 14.0 RL 18.88 DS: 5.77 93 0 .0 28 12 15 94 105 LIMESTONE GATEWAY 30 TP10 104 LINE OF PINES 95 27 14 AUTOMATIC GATE 3 48 10 28 KEYPAD 96 POST PUMP 28 24 29 SHED 100 97 0 F .0 13 99 30 .00 3 53 15 59 PROPOSED FTUNNELS 24 PROPOSED SERVICE BUILDING 98 2 35 26

0 TP05 0 . 27 31 4 29 15 61 4 8 28 1 0 26 44 102 0 .0 00 0 24 99 6 . . 2 2 4 3 15 59 GRASS 5 73 23 24 LARGE TP03 5 2 27 106 MULBERRY HA01 15 66 103 10 06 TREE 6 25 39 31 96 0 .0 4 11 98 TP04 3 5 99 2 04 25 52 32 14 11 15 34 55 17 01 24 49 10 68 9 19 22 16 7 27 18 2 11 0 18TP11 33 .0 34 10 6 107 2

13 86 21 4 5 37 108 12 97 16 15 CONCRETE 9 1 39 0 2 19 0 109 00 . PAD 24 78 . 60 21 4 15 12 0 0 20 19 8 00 3 0 36 84 0 17 92 . .0 101 1 96 0 . TP12 8 35 61 0 2 4 0 . 4 3 0 2 1 16.00 WATER . 15 80 4 78 0 1 60 34 1 3 TANK TIMBER BOARDWALK 17 45 18 .00 60 58 18 87 BUILDING 40 WATER 17 61 WALLCLIFFE RD APX. FFL 21.65 60 50 TANK 60 58 TANK 1 54 4 82 DENSE 27 03 1 VEGETATION 17 0 23 32 .0 00 24 61 24 20. 2

21 43

3 93

1 80 10 BOTTOM OF CLIFF FACE TP01 28 23 TP02 0 22 46 . 0 22 36 36 0 00 4 39 .0 24. 6 23 98 27 62 26 14 26 41

LEGEND: NOTES: CLIENT: DRAWN: PROJECT: WALLCLIFFE HOUSE PTY LTD DE PER2018-0309 HA01 HAND AUGER (HA) LOCATION 1. IMAGE FROM NEARMAP 18.08.18 2. BACKGROUND PLAN SUPPLIED BY CLIENT 3. PROPOSED LOCATIONS ARE APPROXIMATE PROJECT: CHECKED: FIGURE: TP01 TEST PIT (TP) LOCATION MW 01 WALLCLIFFE HOUSE DEVELOPMENT REVISION: SCALE: 0 1:1500 0 15 30 45 60 75 m TITLE: DATE: SHEET: 1:1500 SITE INVESTIGATION PLAN 01.10.18 A3 L 8 43

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0

6 68 7 61 0 0 . 6

0 0 71 11 29 .

2

4 03 1 8 55 70 3 79 68 69 11 38 0 0 . 8

9 48

14 02

3 25 8 01

67 12 77

11 38

51 52 9 51

HA06 13 91

0

0 . 15 06 3 03 0

1 12 20 50 66 3 04 SHED FL 3.7 3 21 5 16 5 16 3 43

54 5 14TRACK 13 62 53 15 00

00 0 4. 0 . 6 1

5 09 4 28 5 09

0 0 0 . 0 DAM . 6 5 30 4 1 5 19 AREA

TP09 1 16 74 5 36 0 65 . 0

0 6 26 5 51 6 54

0

0 .

2 24 8 10 55 6 81 5 58 5 58 57 6 71 56 5 85

55 0 0 0 0 7 45 . . 6 96 2 8 SHED 1 1 6 47 FL 4.75 HA09 7 62 5 16 64 1 64 18 84 7 59 6 13 POWER STEPS 1 99 7 93 METER 7 43 5 58 48 11 62 MARGARET RIVER 8 39 47 6 18 0 0 7 80 . 0 1 49 HA05 7 21 40 43 0 .0 6 58 63 6 STEPS 62 1 300D PVC STEPS 0 .0 DS: 1.98 DAIRY 7 46 61 0 HOUSE 2 39 60 TIMBER 45 46 TP08 RETAINING 10 37 WALL LOT 101 44 7 83 14 06 DP 49026 19 40

0 36 5.2494 Ha STEPS 0.0 20 68 7 86 1 59

35 HA04 0 EDGE . 0 WATERS 11 54 8 1 37 0 .0 6 .00 11 54 1 2 34 11 96 42 2 1 2 11 97 58 . 41 00 2 33 15 70 38 33 8 16 HA08 72 0 .0 2 88 11 92 14

6 92 2 62 32 73 11 97 77 TP07 14 06 OLD BUILDING 00 8. APX. FFL 14.3 00 1 00 16. 76 4. 14 09 2

13 18 2 38 74 13 18 HA03 TRACK STEPS 78 SHED 14 07 75 31 14 09 TRACK 7 02 25 02

STEPS 0 6 31 0 17 18 . HA07 91 4 0 1 17 71 .0 2 32 STEPS 20 90 11 25 89 1200x400 BOX 88 87 US: 3.15 86 DS: 2.78 84 85 18 14 83 17 13 82 18 25 81 29 HA02 80 0 18 25 79 .0 17 75 4 TP06 2 1200x400 BOX 18 07 US: 5.85 BM NAIL 10 35 NEW BUILDING 92 APX. FFL 14.0 RL 18.88 DS: 5.77 93 0 .0 28 12 15 94 105 LIMESTONE GATEWAY 30 TP10 104 LINE OF PINES 95 27 14 AUTOMATIC GATE 3 48 10 28 KEYPAD 96 POST PUMP 28 24 29 SHED 100 97 0 F .0 13 99 30 .00 15 59 4 3 53 F 98 2 2 35 26

0 TP05 0 . 27 31 4 29 15 61 4 8 28 1 0 26 44 102 0 .0 00 0 24 99 6 . . 2 2 4 3 15 59 GRASS 5 73 23 24 LARGE TP03 5 2 27 106 MULBERRY HA01 15 66 103 10 06 TREE 6 25 39 31 96 0 .0 4 11 98 TP04 3 5 99 2 04 25 52 32 14 11 15 34 55 17 01 24 49 10 68 9 19 22 16 7 27 18 2 11 0 18TP11 33 .0 34 10 6 107 2

13 86 21 4 5 37 108 12 97 16 15 CONCRETE 9 1 39 0 2 19 0 109 00 . PAD 24 78 . 60 21 4 15 12 0 0 8 0 3 0 20 19 . 0 0 101 36 84 0 . 0 17 92 8 . 1 96 0 2 4 35 61 0 . 4 3 0 2 1 16.00 WATER . 15 80 4 78 0 1 TP12 60 34 1 3 TANK TIMBER BOARDWALK 17 45 18 .00 60 58 18 87 BUILDING 40 WATER 17 61 WALLCLIFFE RD APX. FFL 21.65 60 50 TANK 60 58 TANK 1 54 4 82 DENSE 27 03 1 VEGETATION 17 0 23 32 .0 00 24 61 24 20. 2

21 43

3 93

1 80 10 BOTTOM OF CLIFF FACE TP01 28 23 TP02 0 22 46 . 0 22 36 36 0 00 4 39 .0 24. 6 23 98 27 62 26 14 26 41

LEGEND: NOTES: CLIENT: DRAWN: PROJECT: WALLCLIFFE HOUSE PTY LTD DE PER2018-0309 HA01 HAND AUGER (HA) LOCATION 1. IMAGE FROM NEARMAP 18.08.18 2. BACKGROUND PLAN SUPPLIED BY CLIENT 3. THE TERMINOLOGY "HIGHER" AND "LOWER" RISK DESCRIBES THE RELATIVE RISK PROJECT: CHECKED: FIGURE: TP01 TEST PIT (TP) LOCATION MW 02 4. THE KARST RISK ZONES HAVE BEEN INTERPRETED WITHIN PROPOSED BUILDING AREAS ONLY WALLCLIFFE HOUSE DEVELOPMENT HIGHER RISK KARST ZONE REVISION: SCALE: 0 1:1500 LOWER RISK KARST ZONE 0 15 30 45 60 75 m TITLE: DATE: SHEET: 1:1500 KARST RISK PLAN 01.10.18 A3 L WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

Appendix A Test Pit Logs

CMW Geosciences Ref. PER2018-0309AB Rev 0 TEST PIT LOG - TP01 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 Logged by: MW Position: E.314774m N.6239164m (MGA 51) Plant: JCB 3CX Checked By: PB Elevation: Contractor: ANH Contracting Dimensions : 0.50m x 1.70m

Samples & Insitu Tests Material Description Soil Type, Plasticity or Particle Characteristics, Colour, Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density TOPSOIL: Silty SAND: fine to coarse grained, dark brown; trace organics; trace roots and rootlets. SP: SAND: fine to coarse grained, dark brown; trace silt; with organics; trace roots.

... at 0.80m, becoming brown. M

1 SAND and LIMESTONE PINNACLES: fine to coarse grained, brown; limestone, fine to medium grained, low to high strength, not leached.

Test pit terminated at 1.70 m

2

3

4

Termination Reason: Refusal on limestone. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP02 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 Logged by: MW Position: E.314784m N.6239163m (MGA 51) Plant: JCB 3CX Checked By: PB Elevation: Contractor: ANH Contracting Dimensions : 0.50m x 0.50m

Samples & Insitu Tests Material Description Soil Type, Plasticity or Particle Characteristics, Colour, Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density TOPSOIL: Silty SAND: fine to coarse grained, dark brown; with organics (<5% by weight); trace roots and rootlets.

LIMESTONE (CALCARENITE): fine to medium grained, brown and white; no M leaching, high strength.

Test pit terminated at 0.50 m

1

2

3

4

Termination Reason: Refusal on cap rock. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP03 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 Logged by: MW Position: E.314802m N.6239211m (MGA 51) Plant: JCB 3CX Checked By: PB Elevation: Contractor: ANH Contracting Dimensions : 0.50m x 1.60m

Samples & Insitu Tests Material Description Soil Type, Plasticity or Particle Characteristics, Colour, Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to coarse grained, brown; trace fines; trace organics

FILL: SAND: fine to medium grained, dark brown; trace fines; lenses of clayey gravel.

SP: SAND: fine to medium grained, dark brown; with fines; twith organics (<5% by weight). M

1

Test pit terminated at 1.60 m

2

3

4

Termination Reason: Refusal on cap rock. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP04 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 Logged by: MW Position: E.314770m N.6239202m (MGA 51) Plant: JCB 3CX Checked By: PB Elevation: Contractor: ANH Contracting Dimensions : 0.50m x 2.40m

Samples & Insitu Tests Material Description Soil Type, Plasticity or Particle Characteristics, Colour, Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to coarse grained, brown; trace fines; trace organics.

FILL: SAND: fine to medium grained, dark brown; trace fines. Lens of clayey gravel.

FILL: SAND: fine to medium grained, dark brown; trace fines; trace organics.

FILL: SAND and LIMESTONE): fine to coarse grained, yellowish brown; Limestone, fine to medium grained, yellowish brown to white; recovered as gravel, cobbles and boulders, very low to high strength. 1

M

2

Test pit terminated at 2.40 m

3

4

Termination Reason: Refusal on limestone. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP05 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 Logged by: MW Position: E.314767m N.6239212m (MGA 51) Plant: JCB 3CX Checked By: PB Elevation: Contractor: ANH Contracting Dimensions : 0.50m x 1.80m

Samples & Insitu Tests Material Description Soil Type, Plasticity or Particle Characteristics, Colour, Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to coarse grained, brown; trace fines; trace organics.

FILL: SAND: fine to medium grained, dark brown; trace fines.

SP: SAND: fine to medium grained, dark brown; trace fines; trace organics.

SP: SAND and LIMESTONE PINNACLES: fine to medium grained, dark brown; trace fines; trace organics; Limestone, fine to medium grained, yellowish brown M to white, low to high strength, pinnacles recovered as cobbles and boulders. 1

Test pit terminated at 1.80 m

2

3

4

Termination Reason: Refusal on limestone. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP06 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314771m N.6239247m (MGA 51) Plant: JCB 3CX Checked By: PB x Elevation: Contractor: ANH Contracting Dimensions : 0.50m x 2.80m t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to coarse grained, brown; trace fines; trace 0.1 1 B organics. FILL: SAND: fine to medium grained, dark brown; with gravel; with fines; with organics (<5% by weight).

SP: SAND: fine to medium grained, dark brown; with fines; with organics (<5% by weight)

1.0 2 B 1

M

2 ... at 2.00m, becoming dark yellowish brown.

2.80m: Pit collapse Test pit terminated at 2.80 m

3

4

Termination Reason: Target Depth Reached. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP07 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314876m N.6239365m (MGA 51) Plant: JCB 3CX ANH Contracting Checked By: PB x Elevation: Contractor: Dimensions : 0.50m x 0.70m t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density SP: SAND: fine to medium grained, dark brown; trace fines; trace organics. VL 1

... at 0.30m, large limestone boulder (1.2m) M 1

1 L 1

1 Test pit terminated at 0.70 m 2

1

2 1

2

3

4

Termination Reason: Refusal on hard ground. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP08 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314833m N.6239282m (MGA 51) Plant: JCB 3CX Checked By: PB x Elevation: Contractor: ANH Contracting Dimensions : 0.50m x 3.00m t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to coarse grained, greyish brown; with 0.1 1 B gravel, fine to medium grained, sub-rounded.; with fines; with organics (<5% by weight). 3 FILL: SAND: fine to medium grained, dark brown; with fines; with organics (<5% by weight), trace gravel; trace manmade 3 waste. 2 MD 2

2 0.6 2 B 1

2

2

1 1 SP: SAND: fine to medium grained, dark brown; with fines; 2 with organics (<5% by weight). 1

1

2

1 L to M MD 2

1

2

2

1 2 2

2

3 Test pit terminated at 3.00 m

4

Termination Reason: Target Depth Reached Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP09 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 Logged by: MW Position: E.314864m N.6239365m (MGA 51) Plant: JCB 3CX Checked By: PB Elevation: Contractor: ANH Contracting Dimensions : 0.50m x 2.00m

Samples & Insitu Tests Material Description Soil Type, Plasticity or Particle Characteristics, Colour, Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density SP: SAND: fine to medium grained, dark brown; trace fines; trace organics.

M

SP: SAND: fine to coarse grained, dark grey (clean sand). 1

M to W

2 Test pit terminated at 2.00 m

3

4

Termination Reason: Target Depth Reached Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP10 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 Logged by: MW Position: E.314705m N.6239237m (MGA 51) Plant: JCB 3CX Checked By: PB Elevation: Contractor: ANH Contracting Dimensions : 0.50m x 2.40m

Samples & Insitu Tests Material Description Soil Type, Plasticity or Particle Characteristics, Colour, Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to coarse grained, brown; trace fines; trace organics

GEOGRID: 50mm circles with an internal cross FILL: fine gravel sized clasts of blue metal SP: SAND: fine to medium grained, dark brown; trace fines; trace organics.

1 SC: Clayey SAND: fine to coarse grained, grey and yellowish brown; clay, low to medium plasticity (residual soil of granite).

M

2

Test pit terminated at 2.40 m

3

4

Termination Reason: Target Depth Reached Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP11 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 Logged by: MW Position: E.314752m N.6239195m (MGA 51) Plant: JCB 3CX Checked By: PB Elevation: Contractor: ANH Contracting Dimensions : 0.80m x 0.50m

Samples & Insitu Tests Material Description Soil Type, Plasticity or Particle Characteristics, Colour, Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density SP: SAND: fine to medium grained, dark brown; trace fines; trace organics.

M

0.6 1

Test pit terminated at 0.80 m

1

2

3

4

Termination Reason: Refusal on cap rock. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. TEST PIT LOG - TP12 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 Logged by: MW Position: E.314775m N.6239182m (MGA 51) Plant: JCB 3CX Checked By: PB Elevation: Contractor: ANH Contracting Dimensions : 1.20m x 0.50m

Samples & Insitu Tests Material Description Soil Type, Plasticity or Particle Characteristics, Colour, Structure & other observations

RL (m) Secondary and Minor Components Moisture Condition Depth (m) Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to medium grained, dark brown; trace fines; trace organics; trace limestone cobbles and boulders.

M

1

Test pit terminated at 1.20 m

2

3

4

Termination Reason: Refusal on cap rock/limestone boulder. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

Appendix B Hand Auger Borehole Logs

CMW Geosciences Ref. PER2018-0309AB Rev 0 BOREHOLE LOG - HA01 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314767m N.6239210m (MGA 51) Hole Diameter: 100mm Plant used: Hand Auger Checked by: PB x Elevation: Angle from horizontal: 90° t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations Well

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density TOPSOIL: SAND: fine to medium grained, brown; trace fines; trace organics. GEOGRID: 50mm circles with an internal cross. FILL: SAND: fine to coarse grained, yellow to brown; M trace gravel, angular, fine grained. SP: SAND: fine to coarse grained, dark brown; trace organics (possibly FILL). Borehole terminated at 0.4 m

1

2

3

4 Termination Reason: Refusal on limestone cobble. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. BOREHOLE LOG - HA02 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314773m N.6239249m (MGA 51) Hole Diameter: 100mm Plant used: Hand Auger Checked by: PB x Elevation: Angle from horizontal: 90° t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations Well

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: Gravelly SAND: fine to coarse grained, brown; gravel, fine to medium grained, sub-rounded to rounded; trace fines. SP: SAND: fine to medium grained, dark brown; with M gravel.

Borehole terminated at 0.4 m

1

2

3

4 Termination Reason: Refusal on limestone cobble. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. BOREHOLE LOG - HA03 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314820m N.6239274m (MGA 51) Hole Diameter: 100mm Plant used: Hand Auger Checked by: PB x Elevation: Angle from horizontal: 90° t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations Well

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to coarse grained, dark brown; with fines; with organics (<5% by weight). 3

3

3

3

3 MD 3

2

2

2 1 2

1 M 1.20m: Note: Difficult to SP: SAND: fine to coarse grained, dark yellow 2 determine boundary brown. between fill and natural 2 ground due to the

1 homogenous nature of the materials. 2 L 2

2

2

2 2

Borehole terminated at 2.4 m

3

4 Termination Reason: Target Depth Reached. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. BOREHOLE LOG - HA04 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314839m N.6239303m (MGA 51) Hole Diameter: 100mm Plant used: Hand Auger Checked by: PB x Elevation: Angle from horizontal: 90° t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations Well

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to medium grained, dark brown; with fines; with organics (<5% by weight). 1

2

2

2 MD 2

2

2

1

2 1

M

1.80m: Note: Difficult to SP: SAND: fine to coarse grained, brown/grey; trace determine boundary fines. between fill and natural ground due to the 2 homogenous nature of the materials.

Borehole terminated at 2.4 m

3

4 Termination Reason: Target Depth Reached. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. BOREHOLE LOG - HA05 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314832m N.6239326m (MGA 51) Hole Diameter: 100mm Plant used: Hand Auger Checked by: PB x Elevation: Angle from horizontal: 90° t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations Well

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: SAND: fine to coarse grained, greyish brown; with gravel, fine to medium grained, sub-rounded. 4

2 FILL: SAND: fine to medium grained, dark brown; with fines; with organics (<5% by weight), trace 2 gravel; trace manmade waste, old glass. MD 2

2

1

1

2

1 1.00m: Possible transition 1 SP: FILL: SAND: fine to medium grained, dark 2 from fill to natural ground. brown; with fines; with organics (<5% by weight). Difficult to tell as material 1 is homogenous. M 1

1

L 1

1

2

2

2

2 2

Borehole terminated at 2.4 m

3

4 Termination Reason: Target Depth Reached. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. BOREHOLE LOG - HA06 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314869m N.6239398m (MGA 51) Hole Diameter: 100mm Plant used: Hand Auger Checked by: PB x Elevation: Angle from horizontal: 90° t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations Well

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density FILL: Gravelly SAND: fine to coarse grained, brown; gravel, fine to medium grained, sub-rounded to rounded; trace fines. 1

4

FILL: SAND: fine to coarse grained, brown; with MD 4 gravel, fine to medium grained; with fines; with organics (<5% by weight). 2

2

2 M 2

SP: SAND: fine to coarse grained, yellowish brown, 1 sub-rounded to rounded. L to MD 1 1 2

Borehole terminated at 1.4 m

2

3

4 Termination Reason: Target Depth Reached. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. BOREHOLE LOG - HA07 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314787m N.6239262m (MGA 51) Hole Diameter: 100mm Plant used: Hand Auger Checked by: PB x Elevation: Angle from horizontal: 90° t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations Well

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density TOPSOIL: Silty SAND: fine to medium grained, black; with organics (<5% by weight). GEOGRID: 50mm circles with an internal cross 2 FILL: Gravelly SAND: fine to coarse grained, dark brown; gravel, fine to medium grained, angular. 2

FILL: SAND: fine to medium grained, dark brown; 2 with fines; with organics (<5% by weight). 2

3

2

1

2

2 1.00m: Possible transition 1 SP: SAND: fine to medium grained, dark brown; with 2 from fill to natural ground. fines; with organics (<5% by weight). Difficult to tell as material 2 is homogenous. M MD 2

2

2

2

3

2

3

2 2

Borehole terminated at 2.4 m

3

4 Termination Reason: Target Depth Reached. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. BOREHOLE LOG - HA08 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314792m N.6239290m (MGA 51) Hole Diameter: 100mm Plant used: Hand Auger Checked by: PB x Elevation: Angle from horizontal: 90° t Perth Sand Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/150mm) Structure & other observations Well

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density TOPSOIL: fine to coarse grained, dark brown; with fines; with organics (<5% by weight). FILL: SAND: fine to medium grained, dark brown; trace gravel; with fines; with organics (<5% by 3 weight).

3

3

3

3

MD 4 1

4 M 4

5

SP: SAND: fine to coarse grained, dark yellow brown; trace fines. 5

5

4

2

Borehole terminated at 2.4 m

3

4

Termination Reason: Target Depth Reached. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. BOREHOLE LOG - HA09 Client: Wallcliffe House Pty Ltd Project: Margaret River Development Location: Margaret River Project ID: PER2018-0309 Date: 12/09/2018 1:20 Sheet 1 of 1 T Logged by: MW e Position: E.314894m N.6239348m (MGA 51) Hole Diameter: 100mm Plant used: Hand Auger Checked by: PB x Elevation: Angle from horizontal: 90° t Dynamic Cone Samples & Insitu Tests Material Description Penetrometer Soil Type, Plasticity or Particle Characteristics, Colour, (Blows/100mm) Structure & other observations Well

RL (m) Secondary and Minor Components Moisture Condition Depth (m) 5 10 15 Graphic Log Consistency/ Groundwater Depth Type & Results Relative Density SP: SAND: fine to medium grained, dark brown; with fines; with organics (<5% by weight). 2

2

1

2 L to MD 1

1 M 2

2

2 1 SP: SAND: fine to medium grained, dark yellowish brown; trace fines.

Borehole terminated at 1.4 m

2

3

4 Termination Reason: Target Depth Reached. Remarks: Groundwater not encountered.

This report must be read in conjunction with accompanying notes and abbreviations. WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

Appendix C In-situ Permeability Test Results

CMW Geosciences Ref. PER2018-0309AB Rev 0 CLIENT: Wallcliffe House Pty Ltd DESIGNER: MW PROJECT: Wallcliffe House Development CHECKED: PB Wallcliffe House, Prevelly, WA REVISION: 4 TITLE: DATE: 28/09/2018 HA03 - Falling Head Permeability Test PROJECT: PER2018-0309 Specifications - Open-Ended Tube Ground Conditions

Length L1: 1.38 m GWL: 10 m BGL (Blank = Bottom of hole) Diameter: 90 mm Permeability Anisotropy 푘 Non-Perm L : m m: 1 푚 = L3 2 푘 Above Gnd L : 0.02 m 3 L Bottom of Test Hole: 1.36 m BGL 2 Hydraulic Conductivity (k) GWL Note: CMW considers the CIRIA 113 value the most appropriate method for most purposes, L1 but also provides the analysis method as outlined by Hvorslev if desired. CIRIA 113: Somerville (1986), Control of groundwater for temporary works, CIRIA Report 113, Appendix 4 ℎ 2ℎ + 푑 (ℎ + ℎ ) 푘 = 푙표푔 − 푙표푔 . = 3.14E-04 ms-1 = 27.11 m/day ℎ 2ℎ + 푑 2(푡 − 푡) Hvorslev: Hvorslev (1951) Time Lag and Soil Permeability in Ground-Water Observations , Fig 18, p49 푚퐿 푚퐿 푑 푙푛 + + 1 푑 푑 퐻 -1 푘 = 푙푛 = 9.81E-05 ms = 8.48 m/day 8퐿(푡 − 푡) 퐻 1.20 STRATIGRAPHIC LOG

1.00 Fill

0.80

0.60 Head (m) 0.40

0.20 Sand 0.00 EOH @ 1.36m 0 20 40 60 80 100 120 140 160 Time (s) Data Time (s) Tape Avg (m) Head (m) Perm. Length Hvorslev 'k' CIRIA 113 'k' 0 0.400 0.980 (m) Case G (ms-1) (ms-1) 10 0.600 0.780 0.880 7.82E-05 4.28E-04 28 0.800 0.580 0.680 6.67E-05 3.06E-04 38 0.900 0.480 0.530 8.94E-05 3.43E-04 50 1.000 0.380 0.430 1.04E-04 3.47E-04 69 1.100 0.280 0.330 9.91E-05 2.80E-04 97 1.200 0.180 0.230 1.16E-04 2.64E-04 152 1.300 0.080 0.130 1.34E-04 2.29E-04 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A CLIENT: Wallcliffe House Pty Ltd DESIGNER: MW PROJECT: Wallcliffe House Development CHECKED: PB Wallcliffe House, Prevelly, WA REVISION: 4 TITLE: DATE: 28/09/2018 HA07 - Falling Head Permeability Test PROJECT: PER2018-0309 Specifications - Open-Ended Tube Ground Conditions

Length L1: 1.4 m GWL: 10 m BGL (Blank = Bottom of hole) Diameter: 90 mm Permeability Anisotropy 푘 Non-Perm L : m m: 1 푚 = L3 2 푘 Above Gnd L : 0.17 m 3 L Bottom of Test Hole: 1.23 m BGL 2 Hydraulic Conductivity (k) GWL Note: CMW considers the CIRIA 113 value the most appropriate method for most purposes, L1 but also provides the analysis method as outlined by Hvorslev if desired. CIRIA 113: Somerville (1986), Control of groundwater for temporary works, CIRIA Report 113, Appendix 4 ℎ 2ℎ + 푑 (ℎ + ℎ ) 푘 = 푙표푔 − 푙표푔 . = 1.61E-04 ms-1 = 13.87 m/day ℎ 2ℎ + 푑 2(푡 − 푡) Hvorslev: Hvorslev (1951) Time Lag and Soil Permeability in Ground-Water Observations , Fig 18, p49 푚퐿 푚퐿 푑 푙푛 + + 1 푑 푑 퐻 -1 푘 = 푙푛 = 3.61E-05 ms = 3.12 m/day 8퐿(푡 − 푡) 퐻 1.00 STRATIGRAPHIC LOG 0.90 0.80 Fill 0.70 0.60 0.50

Head (m) 0.40 0.30 0.20 0.10 0.00 EOH @ 1.23m 0 50 100 150 200 250 Time (s) Data Time (s) Tape Avg (m) Head (m) Perm. Length Hvorslev 'k' CIRIA 113 'k' 0 0.500 0.900 (m) Case G (ms-1) (ms-1) 7 0.600 0.800 0.850 5.90E-05 3.13E-04 17 0.700 0.700 0.750 5.08E-05 2.47E-04 34 0.800 0.600 0.650 3.78E-05 1.66E-04 68 0.900 0.500 0.550 2.48E-05 9.74E-05 123 1.000 0.400 0.450 2.11E-05 7.26E-05 198 1.100 0.300 0.350 2.29E-05 6.72E-05 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A WALLCLIFFE HOUSE DEVELOPMENT – GEOTECHNICAL INVESTIGATION REPORT 10 October 2018

Appendix D Laboratory Test Results

CMW Geosciences Ref. PER2018-0309AB Rev 0 Envirolab Services (WA) Pty Ltd trading as MPL Laboratories ABN 53 140 099 207 16-18 Hayden Court Myaree WA 6154 ph 08 9317 2505 fax 08 9317 4163 [email protected] www.mpl.com.au

CERTIFICATE OF ANALYSIS 216583

Client Details Client CMW Geosciences Attention Matt Watt Address Unit 19 Wembley Green Offices, 127 Herdsman Parade, Wembley, WA, 6104

Sample Details Your Reference PER2018-0309 Number of Samples 4 Soils Date samples received 27/09/2018 Date completed instructions received 27/09/2018

Analysis Details Please refer to the following pages for results, methodology summary and quality control data. Samples were analysed as received from the client. Results relate specifically to the samples as received. Results are reported on a dry weight basis for solids and on an as received basis for other matrices.

Report Details Date results requested by 08/10/2018 Date of Issue 08/10/2018 NATA Accreditation Number 2901. This document shall not be reproduced except in full. Accredited for compliance with ISO/IEC 17025 - Testing. Tests not covered by NATA are denoted with *

Results Approved By Authorised By Joshua Lim, Operations Manager

Todd Lee, Laboratory Manager

MPL Reference: 216583 Page | 1 of 7 Revision No: R00 Client Reference: PER2018-0309

Miscellaneous Inorg - soil Our Reference 216583-1 216583-2 216583-3 216583-4

Your Reference UNITS TP06 TP06 TP08 TP08

Depth 0.1 1 0.1 0.6

Date Sampled 19/09/2018 19/09/2018 19/09/2018 19/09/2018

Type of sample Soil Soil Soil Soil

Date prepared - 08/10/2018 08/10/2018 08/10/2018 08/10/2018

Date analysed - 08/10/2018 08/10/2018 08/10/2018 08/10/2018

Loss on Ignition % 4.5 3.2 5.0 3.4

MPL Reference: 216583 Page | 2 of 7 Revision No: R00 Client Reference: PER2018-0309

Part. Size Dist. (full) Our Reference 216583-2 216583-4

Your Reference UNITS TP06 TP08

Depth 1 0.6

Date Sampled 19/09/2018 19/09/2018

Type of sample Soil Soil

150.0mm % passing 100 100

100.0mm % passing 100 100

75.0mm % passing 100 100

37.5mm % passing 100 100

19.0mm % passing 100 100

9.5mm % passing 100 100

4.75mm % passing 100 100

2.36mm % passing 100 100

1.18mm % passing 100 99

0.600mm % passing 85 72

0.425mm % passing 50 33

0.300mm % passing 25 14

0.150mm % passing 12 7

0.075mm % passing 10 6

MPL Reference: 216583 Page | 3 of 7 Revision No: R00 Client Reference: PER2018-0309

Method ID Methodology Summary 1289.3.6.1 Methods of testing soils for engineering purposes - Soil classification tests - Determination of the particle size distribution of a soil - Standard method of analysis by sieving INORG-092 LOI - Sample is dried, then ignited in a furnace.

MPL Reference: 216583 Page | 4 of 7 Revision No: R00 Client Reference: PER2018-0309

QUALITY CONTROL: Miscellaneous Inorg - soil Duplicate Spike Recovery % Test Description Units PQL Method Blank # Base Dup. RPD [NT] [NT]

Date prepared - [NT] 1 08/10/2018 08/10/2018 [NT] [NT]

Date analysed - [NT] 1 08/10/2018 08/10/2018 [NT] [NT]

Loss on Ignition % 0.1 INORG-092 [NT] 1 4.5 4.5 0 [NT] [NT]

MPL Reference: 216583 Page | 5 of 7 Revision No: R00 Client Reference: PER2018-0309

Result Definitions NT Not tested NA Test not required INS Insufficient sample for this test PQL Practical Quantitation Limit < Less than > Greater than RPD Relative Percent Difference LCS Laboratory Control Sample NS Not specified NEPM National Environmental Protection Measure NR Not Reported

Quality Control Definitions This is the component of the analytical signal which is not derived from the sample but from reagents, Blank glassware etc, can be determined by processing solvents and reagents in exactly the same manner as for samples. This is the complete duplicate analysis of a sample from the process batch. If possible, the sample selected Duplicate should be one where the analyte concentration is easily measurable. A portion of the sample is spiked with a known concentration of target analyte. The purpose of the matrix spike Matrix Spike is to monitor the performance of the analytical method used and to determine whether matrix interferences exist. LCS (Laboratory This comprises either a standard reference material or a control matrix (such as a blank sand or water) fortified Control Sample) with analytes representative of the analyte class. It is simply a check sample.

Surrogates are known additions to each sample, blank, matrix spike and LCS in a batch, of compounds which Surrogate Spike are similar to the analyte of interest, however are not expected to be found in real samples. Australian Drinking Water Guidelines recommend that Thermotolerant Coliform, Faecal Enterococci, & E.Coli levels are less than 1cfu/100mL. The recommended maximums are taken from "Australian Drinking Water Guidelines", published by NHMRC & ARMC 2011.

MPL Reference: 216583 Page | 6 of 7 Revision No: R00 Client Reference: PER2018-0309

Laboratory Acceptance Criteria Duplicate sample and matrix spike recoveries may not be reported on smaller jobs, however, were analysed at a frequency to meet or exceed NEPM requirements. All samples are tested in batches of 20. The duplicate sample RPD and matrix spike recoveries for the batch were within the laboratory acceptance criteria. Filters, swabs, wipes, tubes and badges will not have duplicate data as the whole sample is generally extracted during sample extraction. Spikes for Physical and Aggregate Tests are not applicable.

For VOCs in water samples, three vials are required for duplicate or spike analysis.

Duplicates: >10xPQL - RPD acceptance criteria will vary depending on the analytes and the analytical techniques but is typically in the range 20%-50% – see ELN-P05 QA/QC tables for details; <10xPQL - RPD are higher as the results approach PQL and the estimated measurement uncertainty will statistically increase. Matrix Spikes, LCS and Surrogate recoveries: Generally 70-130% for inorganics/metals; 60-140% for organics (+/-50% surrogates) a

In circumstances where no duplicate and/or sample spike has been reported at 1 in 10 and/or 1 in 20 samples respectively, the sample volume submitted was insufficient in order to satisfy laboratory QA/QC protocols. When samples are received where certain analytes are outside of recommended technical holding times (THTs), the analysis has proceeded. Where analytes are on the verge of breaching THTs, every effort will be made to analyse within the THT or as soon as practicable. Where sampling dates are not provided, Envirolab are not in a position to comment on the validity of the analysis where recommended technical holding times may have been breached. Measurement Uncertainty estimates are available for most tests upon request.

MPL Reference: 216583 Page | 7 of 7 Revision No: R00 PARTICLE SIZE DISTRIBUTION Client: CMW Geosciences Job No: Principal: Matt Watts Laboratory: MPL Project: PER2018-0309 Report Date 03-Oct-18 Location: Test report No: 216583 Test procedure: AS1289.3.6.1 Depth: 1 Sample No: 216583-2 Sample Identification: TP06

AS. sieve 53 mm 75 mm 19 mm 9.5 9.5 mm 150 mm 1.18 mm 37.5 mm 2.36 mm 4.75 mm 100 %

90 % 600 μm

80 %

70 %

60 % 425 μm

50 %

40 %

30 % 300 μm

20 % percentagefiner thansize: 150 μm 75 μm 10 % 6.7 6.7 mm 26.5 mm 13.2 mm 0 % 0.01 0.1 1 10 100 0.001 150 - 0.002 - 0.06 - ← particle size - mm → 2 60 silt sand gravel fine medium coarse fine medium coarse fine medium coarse

Sieve Analysis Hydrometer Analysis Sieve Size mm % Passing Particle Size µm % Passing 75 100 37.5 100 19 100 9.5 100 Oven dried 4.75 100 2.36 100 1.18 100 600 µm 85 425 µm 49 300 µm 22 150 µm 8 75 µm 7 Page 1 of 1

Form 2111_V001 Issue date: 21 April 2016 Page 1 of 1 PARTICLE SIZE DISTRIBUTION Client: CMW Geosciences Job No: Principal: Matt Watts Laboratory: MPL Project: PER2018-0309 Report Date 03-Oct-18 Location: Test report No: 216583 Test procedure: AS1289.3.6.1 Depth: 1 Sample No: 216583-4 Sample Identification: TP08

AS. sieve 53 mm 75 mm 19 mm 9.5 9.5 mm 150 mm 37.5 mm 1.18 mm 2.36 mm 4.75 mm 100 %

90 %

80 % 600 μm

70 %

60 %

50 %

40 % 425 μm

30 %

20 % 300 μm percentagefiner thansize: 75 μm 150 μm 10 % 6.7 6.7 mm 26.5 mm 13.2 mm 0 % 0.01 0.1 1 10 100 0.001 150 - 0.002 - 0.06 - ← particle size - mm → 2 60 silt sand gravel fine medium coarse fine medium coarse fine medium coarse

Sieve Analysis Hydrometer Analysis Sieve Size mm % Passing Particle Size µm % Passing 75 100 37.5 100 19 100 9.5 100 Oven dry 4.75 100 2.36 100 1.18 99 600 µm 72 425 µm 33 300 µm 14 150 µm 7 75 µm 6 Page 1 of 1

Form 2111_V001 Issue date: 21 April 2016 Page 1 of 1 CLIENT: Wallcliffe House Pty Ltd TESTED: MO PROJECT: Margaret River Development CHECKED: MW Margaret River REVISION: 0 TITLE: DATE: 1/10/2018 Point Load Strength Index (AS 4133.4.1: 2007) PROJECT: PER2018-0309

Depth Depth Rock Moisture Test W Failure Borehole D (mm) P (kN) (D )2 (mm2) Is(50) (Mpa) Strength Class From (m) To (m) Description Condition Type (mm) Mode e

TP01-1a Calcarenite D I 75 28 0.60 1 2,674 0.23 L TP01-1b Calcarenite D I 75 34 2.70 1 3,247 0.88 M TP01-2 Calcarenite D I 100 37 8.10 1 4,711 1.98 H TP01-3 Calcarenite D I 90 34 3.70 1 3,896 1.05 H TP02-1a Calcarenite D I 110 40 3.20 4 5,602 0.68 M TP02-1b Calcarenite D I 100 37 7.50 1 4,711 1.84 H TP02-1c Calcarenite D I 80 30 0.50 4 3,056 0.17 L TP02-1d Calcarenite D I 120 52 4.70 1 7,945 0.77 M TP02-2a Calcarenite D I 80 30 4.40 4 3,056 1.51 H TP02-2b Calcarenite D I 115 48 6.20 2 7,028 1.11 H TP02-3a Calcarenite D I 85 24 6.50 1 2,597 2.52 H TP02-3b Calcarenite D I 80 33 5.00 1 3,361 1.59 H TP03-1a Calcarenite D I 85 26 1.90 3 2,814 0.69 M TP03-1b Calcarenite D I 75 23 0.70 4 2,196 0.31 M TP03-2a Calcarenite D I 80 25 12.50 4 2,546 4.93 VH TP03-2b Calcarenite D I 100 41 7.00 2 5,220 1.58 H TP03-3a Calcarenite D I 95 40 1.00 2 4,838 0.24 L TP03-3b Calcarenite D I 90 35 3.10 1 4,011 0.86 M TP04-1 Calcarenite D I 120 44 3.50 2 6,723 0.65 M TP04-2 Calcarenite D I 100 68 15.10 2 8,658 2.31 H TP04-3a Calcarenite D I 130 67 4.00 4 11,090 0.50 M TP04-3b Calcarenite D I 125 53 13.60 4 8,435 2.12 H TP04-1 Calcarenite D I 90 46 1.20 2 5,271 0.27 L TP11-1 Calcarenite D I 70 30 5.80 2 2,674 2.20 H Legend Notes 2 2 Test Type Failure Mode Strength Classification Is(50) (MPa) - For diametral tests De = D 2 D Diametral 1 Through Substance EL Extremely Low <0.03 - For axial or irregular tests De = A Axial 2 Along Defect VL Very Low 0.03 - 0.1 4.W.D/π I Irregular 3 Parallel to Bedding L Low 0.1 - 0.3 - Strength classification based on 4 Not Applicable M Medium 0.3 - 1.0 AS1726-2017 H High 1.0 - 3.0 - Moisture content required by VH Very High 3.0 - 10.0 AS4133.3.1-2007 EH Extremely High 10.0 - 30.0

APPENDIX D EUROPEAN HERITAGE REPORT

WALLCLIFFE HOUSE & LANDSCAPE: EUROPEAN HERITAGE

Brief outline of European Heritage considerations for the Scheme Amendment November 2019

Cover Image Wallcliffe House, rear view c.1970

Courtesy https://nla.gov.au/nla.obj-152020173/view

COPYRIGHT

Wallcliffe House Aboriginal Heritage Assessment is copyright to Hocking Planning & Architecture Pty Ltd, trading as Hocking Heritage + Architecture. This report cannot be reproduced, in whole or in part, for any purposes apart from those permitted under the Copyright Act or use for professional or financial benefit by other professional consultants and / or building trade contractors without prior approval of Hocking Planning & Architecture Pty Ltd, trading as Hocking Heritage + Architecture.

Rev No Author Reviewer Date

A Gemma Dewar April 2019

B Gemma Dewar November 2019

Table of Contents

1. INTRODUCTION ...... 4

2. LOCATION ...... 5

3. HERITAGE LISTINGS ...... 7

4. PROPOSED DEVELOPMENT ...... 10

5. HERITAGE STUDIES ...... 12

6. HERITAGE IMPLICATIONS AND CONSTRAINTS ...... 13

Wallcliffe House & Landscape European Heritage Considerations November 2019

1. Introduction

The current owners of Wallcliffe House & Landscape have appointed Hocking Heritage Studio to prepare a brief comment on the European heritage status of the site in connection with the scheme amendment application and the subsequent proposed redevelopment of the site. The objective of this review is to highlight the heritage constraints and evaluate the potential impact of the proposals on the recognised cultural heritage value of the place.

Wallcliffe House & Landscape (RHP No. 114) is a site of recognised cultural heritage significance, with heritage listings at both local and state level. Any development of the site must take account of these values.

Wallcliffe House & Landscape was a house valued for its architectural merit and its landscape setting as well as for associations with early settler families. Following the bush fire of 2011 that ripped through parts of Margaret River, Wallcliffe House and its Dairy were substantially destroyed and have been standing as relics of the past for the ensuing years. Despite the current condition of the place, the heritage values of the site remain extant and are to be considered in any change proposed for the site, including the Scheme Amendment.

The ‘Wallcliffe Conservation Plan” was prepared for MA & CA Hohnen, the former owners in 1998. The report contained a heritage assessment and conservation policy for managing the values of the place, and together with the Register Documentation prepared at the time the place was entered onto the State Register for Heritage Places in 2005, has been the guiding document for change on this site.

Whilst some of the aesthetic value of the place has been lost as a result of the fire, the place is still recognised as being of cultural heritage significance. The site still plays an important role in defining the community’s sense of place and still benefits from a picturesque and natural bushland landscape setting.

The proposed redevelopment of the Wallcliffe House and Dairy ruins together with additional new accommodation blocks strategically scattered around the landscaped site will respect the aesthetic, environmental and cultural significances of the site. The limestone from the original house and dairy will be salvaged as far as practicable and reused in the redevelopment in a variety of ways. The rebuilding of Wallcliffe House will be informed by the original Victorian Georgian architectural style, though not a faithful replica, to allow the story of Wallcliffe to continue and be appreciated for all its qualities, albeit in a contemporary manner.

This report does not replace the need for a detailed heritage impact statement to be prepared in connection with the proposed redevelopment of the site. As a State Registered site, any application for development must be referred to the Department of Planning, lands and Heritage - Heritage Council for their comment under the provisions of the Heritage Act of Western Australia 2018.

The following report outlines the extant heritage listings, adopted heritage values and any constraints the heritage may place on proposed use and development of the site.

Page 4 Wallcliffe House & Landscape European Heritage Considerations November 2019

2. Location

Wallcliffe House & Landscape is located at Lot 101 plan no. 49026, HN 752 Wallcliffe Road, Prevelly. The house and gardens are located on the south east bank of the Margaret River, approximately 8 kms west of the township of Margaret River. The study area contains the ruins of the original Wallcliffe House, the later house and the dairy together with ancillary structures and extensive garden.

Figure 1: Location of Wallcliffe House & Landscape in local context

Page 5 Wallcliffe House & Landscape European Heritage Considerations November 2019

Figure 2: Aerial view of site

Page 6 Wallcliffe House & Landscape European Heritage Considerations November 2019

3. Heritage Listings

Wallcliffe House & Landscape benefits from a number of heritage listings.

Only the entry on the State Register of Heritage Places under the Heritage Act 2018 (recently gazetted replacing the Heritage Act of Western Australia 1990) and entry in the Shire of Augusta-Margaret River’s Heritage List conveys any statutory implications, all other heritage listings are informal but demonstrates that the place has been valued by numerous heritage bodies across Australia at one time or other.

Heritage Listing: Wallcliffe House & Level Date Comment Landscape State Register of Heritage Places Interim Entry 20/05/2003 Place No. 114 Permanent Entry 26/08/2005 Heritage List – Shire of Augusta- Exceptional 08/08/2012 Margaret River Municipal Heritage Inventory – Shire of Category 1 17/06/1996 Adopted Augusta-Margaret River Register of National Estate Permanent 21/03/1978

Classified by National Trust Classified 16/12/1976

Wallcliffe House & Landscape, consisting of the original Wallcliffe House and Dairy, now both in ruins following the fire of 2011, together with the adjacent bushland, Wallcliffe Cliffs, Wallcliffe Cave and the Bushland Scarp on the northern side of Margaret River, are of exceptional significance. The later house constructed in c.2001 and the post-1987 formal garden to the north west of the original house are not of significance.

Although harmed by the bushfire of 2011, Wallcliffe House & Landscape still represents the values that were ascribed to the place at the time of its assessment for entry into the State Register of Heritage Places in 2005. The following Statement of Significance, prepared by Heritage Council of Western Australia, is to be taken into account in all development proposals for the site:

Wallcliffe House & Landscape consisting of Wallcliffe House, a two storey stone, shingle and corrugated iron homestead designed in the Victorian Georgian style [now a ruin with effect from 2011] remaining outbuildings and designed landscape setting, together with the adjacent Bushland, Wallcliffe Cliffs, Wallcliffe Cave and the Bushland Scarp on the northern side of Margaret River which represents the original view from the property, has cultural heritage significance for the following reasons:

• The place is important in bringing together a diverse range of exceptional elements significant for their Aboriginal, European and natural values;

• The place is of great beauty. The attractive natural landscape first drew settlers to this area and many of the views and vistas have changed little since the start of European settlement. The picturesque siting of Wallcliffe House marks a European influence on the landscape without intruding on the natural magnificence of the site;

• The establishment of a dairy and pastoral industries at Wallcliffe House & Landscape by the women of the Bussell family represents the important role that women played in the early rural development of the colony;

Page 7 Wallcliffe House & Landscape European Heritage Considerations November 2019

• Wallcliffe House [as at 2005] is an excellent and well-crafted example of a Victorian Georgian homestead, and its design represents the aspiration of many early colonists to emulate a British country gentleman’s residence. It is rare as a two storey residence of this type constructed in stone.

• The place marks the beginning of agricultural development in the Margaret River region and was the focus of the pioneering agricultural enterprise of the family of Alfred and Ellen Bussell;

• Wallcliffe House is a distinct and important landmark due to its isolated location and the contrast of its limestone walls against the darker bushland vegetation;

• The place has long associations with the Terry and Hohnen families, each long standing families in the Margaret River community and in WA business circles; and

• The place demonstrates changes in land use and agricultural practices, and the economic fortunes of owners from first settlement to the present time.

A number of the above statements relating to the aesthetic significance of Wallcliffe House have become valid historical and social values as a result of the fire.

As is standard practice in the preparation of conservation plans, a zones and elements of significance plan also needs to be prepared. Such a plan was prepared as part of the 1998 Conservation Plan which was prior to the development of the additional house and landscape treatments. The conservation plan identified the following zones and elements of significance:

Exceptional Significance Wallcliffe House (original)

All internal and external spaces of Wallcliffe House apart from the adapted areas of the new kitchen, bathroom and laundry/powder room

Original furnishing and Bussell family records remaining in Wallcliffe House

Considerable Significance All of the site within the Wallcliffe house viewshed

Wallcliffe House gardens

Former Dairy

Remnant fencing and old mulberry trees in the vicinity of the former Dairy

Site of former jetty

Wallcliffe Cave and Mr Haghe’s carving of family names

Some Significance Wallcliffe House new kitchen, bathroom and laundry/powder room

Site of former Dairy mustering yards

Site of former Stables

Page 8 Wallcliffe House & Landscape European Heritage Considerations November 2019

Site of former Long Cottage

Former access track alignment

Service area and former cart shed/barn

Little Significance Caretaker’s residence and former shop and office for the caravan park

Site of the former tea house

Following the 2011 bushfire, a number of the above elements were destroyed however the overall site remains as being of considerable significance. Although the house is not in a state that could be restored, the extant fabric of the original house and diary still demonstrate significance.

Page 9 Wallcliffe House & Landscape European Heritage Considerations November 2019

4. Proposed Development

The site and fire damaged remains of Wallcliffe House & Landscape are to be redeveloped to reconstruct the original Wallcliffe House, reconstruct and adapt the remains of the Dairy building together with the introduction of a series of new structures strategically places around the site to ensure the landscape and natural qualities of the place are retained and enhanced.

Figure 3: Map showing proposed development at Wallcliffe House

Wallcliffe House, constructed in the 1870s, was destroyed in the 2011 Bush Fire, leaving the extant fabric in a vulnerable and fragile condition that has been assessed by engineers as being unviable for full restoration. The site is recognised as being of significance to both the local community. As a heritage site of state importance the retention of as much original fabric and its values is an essential part of the conservation process. The history of the site is embodied in the remnant fabric, landscaping and natural environments and the proposed redevelopment seeks to retain and enhance these special qualities.

The proposed redevelopment of the Wallcliffe site is still at concept stage however design principles for the reconstruction of the original house and for the construction of the new buildings have been established.

Original fabric will be salvaged where possible and reused in a number of ways in the new works. The local materials used in the original construction of the house reflect the era of development where transportation of materials over long distances was difficult thereby using local materials which created a distinctive local vernacular. The continued use of local materials continues this part of the development story of Wallcliffe House.

The architectural style of reconstructed Old Wallcliffe is to be informed by the original architectural style that was described as being “an excellent example of a homestead in the Victorian Georgian style as it displays Page 10 Wallcliffe House & Landscape European Heritage Considerations November 2019 considerable finesse in its siting and design against a backdrop of bushland and limestone cliffs, and in the materials and level of craftsmanship employed in its original construction and restoration” (State Register Assessment Documentation, 2005). The reconstructed house will not be an exact replica but will play homage to these values. All new work will be clearly distinguishable and will not confuse the history and understanding of the site.

New structures on the site will be respectful to the existing significant buildings on the Wallcliffe site. All new buildings will be of appropriate scale, bulk, character, colour, texture and materials and will not be in the immediate vicinity of the Old Wallcliffe House and the Dairy buildings allowing for the original relationships between these buildings to be maintained and understood. All proposed new development will be to the rear and sides of these two buildings again maintaining the relationship of the house and dairy to the river.

All additional new development will also be respectful of the landscape qualities of the site and the desire to keep the existing ‘secrecy’ of the site intact by ensuring the additional structures sit snuggly in the landscape and do not harm the special qualities of the site, including its spatial qualities. Important views into the site from the road above and from across the river will not be harmed as a result of the proposed development on the site. The architectural style of the new structures and the restored ‘New Wallcliffe’ (the Chaney House) will utilise the existing material palette seen on the site to create continuity and coherency together with local context.

Interpretation will form part of the development and will be reflected throughout the buildings and landscape in a variety of ways. Interpretation is an essential aspect of conservation and will be an integral part of the detailed development process.

Page 11 Wallcliffe House & Landscape European Heritage Considerations November 2019

5. Heritage Studies

Development of recognised heritage sites generally follows a prescribed process that documents a place at the time of the proposed change, manages change through assessment of proposals and prescribes policy for the on-going management of the place to ensure the values of the place are safeguarded for current and future generations alike.

To date, a number of studies have been prepared that assessed the significance of the site prior to entry in the State Register of Heritage Place and prior to the last development in the early 2000s. Although the aesthetics of the site have changed as a result of the fire, these assessments provide a valuable resource for the future conservation of the site.

The following documents have been used as reference documents for the proposed redevelopment of the Wallcliffe House & Landscape site:

a. Wallcliffe Conservation Plan 1998 b. Wallcliffe Conservation Plan Annexure 2003 c. Assessment of Wallcliffe Landscape 2004 d. Register Documentation 2005

The following reports are likely to need to be prepared as part of the redevelopment process and to the satisfaction of Heritage Council of Western Australia.

e. Archival Record prior to demolition and redevelopment f. Heritage Impact Statement for the proposed redevelopment g. Interpretation Strategy to be prepared prior to building licence h. Archaeological Management Plan either as part of the development application package or prior to building licence i. Revised Conservation Management Plan once development is complete

Page 12 Wallcliffe House & Landscape European Heritage Considerations November 2019

6. Heritage Implications and Constraints

Places of identified heritage value must be conserved to ensure the cultural significance of the place is retained. This does not mean change cannot occur. It means that change must be undertaken in an informed manner. Generally speaking, a cautious approach to change is recommended ie change as much as necessary but as little as possible.

Change should also not distort the physical evidence of the place ie not create a false picture of the history, character or design intent of the place.

By understanding the physical and historical constraints of a place results in creative and innovative solutions that adequately reflect the cultural significance of a site whilst allowing for it to embrace a new chapter in its story.

Wallcliffe House & Landscape is placed on the State Register of Heritage Places (RHP No.114) and is protected under the provisions of the new Heritage Act 2018 (which came into force on 1 July 2019). The place is also entered on the Shire of Augusta-Margaret River’s Heritage List which also affords statutory protection to the place. As such, the heritage listing of Wallcliffe House & Landscape places constraints on development in so much as the documented cultural heritage significance of the place must be taken into account in assessing development applications for the site to ensure that the values of the place are not harmed through inappropriate change and development.

The bushfire of 2011 irreparably damaged the fabric of the original Wallcliffe House and associated Dairy building. Elements of the landscape suffered slight damage but on the whole, the landscape quality of the site remains intact. Engineering advice has been obtained relating to the extant fabric of the original house and dairy, confirming that the structures should not be restored but elements could be retained and incorporated into subsequent redevelopment thereby retaining the cultural significance of the place.

As can be seen from documentary evidence sources, many of the values of the site are associated with historic events and families which can be commemorated through interpretation in different forms rather than through interpretation through physical fabric.

The remaining aesthetic values relating to the landscape characterises of the bushland, cliffs and cave; the relationship to the Margaret River; its landmark status due to its isolation; and contrast of limestone against natural bushland vegetation remain valid values and considerations. Additional development of the site should not harm these values.

The proposed development and associated scheme amendment application takes into account these values and whilst the development proposal will require a detailed heritage impact assessment, the proposal to date has been sympathetically designed to safeguard and enhance these values. The spatial relationships between the heritage structures of the Old Wallcliffe House and Dairy will not be altered by the proposals, nor will their relationship with the river. The proposed development is subtle, nestled into the landscape and will not over dominate the remnant historic structures on the site nor the landscape qualities of the site.

Development of a heritage place does not just require retention of significant original fabric and identified cultural values, it also requires that an appropriate visual setting is retained together with the retention of other relationships that contribute to the cultural significance of the place. Development that results in an adverse impact on the significant setting and/or relationships is not considered appropriate in heritage terms.

The proposed development for Wallcliffe House & Landscape takes full account of the existing heritage values of the place as well as its visual setting. The proposed development responds to the distinct natural beauty of the site as well as the multi-layered cultural significance of the place. It plays homage to the past whilst embracing contemporary design ideals required for this type of use. The existing landscape qualities of both the formal garden landscape and the natural bushland setting will be retained. The redeveloped buildings and new structures will bed into the landscape with minimal impact on views with the architecture responding to the spatial qualities of the site and the natural beauty of the immediate environmental context.

Page 13 Wallcliffe House & Landscape European Heritage Considerations November 2019

The application for the Scheme Amendment to enable the proposed redevelopment to proceed will not harm the documented significance of the site.

Page 14 APPENDIX E ABORIGINAL HERITAGE REPORT

WALLCLIFFE HOUSE & LANDSCAPE

ABORIGINAL HERITAGE REVIEW UPDATED NOVEMBER 2019

ii

COPYRIGHT

Wallcliffe House Aboriginal Heritage Assessment is copyright to Hocking Planning & Architecture Pty Ltd, trading as Hocking Heritage + Architecture. This report cannot be reproduced, in whole or in part, for any purposes apart from those permitted under the Copyright Act or use for professional or financial benefit by other professional consultants and / or building trade contractors without prior approval of Hocking Planning & Architecture Pty Ltd, trading as Hocking Heritage + Architecture.

Rev No Author Reviewer Date A Tristan Bergin Gemma Dewar April 2019 B Tristan Bergin Gemma Dewar November 2019

ii Wallcliffe House & Landscape European Heritage Considerations November 2019

Executive Summary

The new owners of Wallcliffe House have engaged Hocking Heritage Studio to prepare an Aboriginal Heritage Assessment for a proposed development within the Wallcliffe House estate at 752 Wallcliffe Road, Margaret River.

The new owners of Wallcliffe House propose to rebuild a number of structures that were totally or partially destroyed by bushfire in 2011. The new structures will be used for accommodation, a restaurant and other hospitality services. Most of the structures will be built within the highly disturbed footprint of the previous structures. No ground disturbing work will be undertaken along the Margaret River foreshore. All work will be undertaken on ground that has been subject to severe disturbance for a long period of time.

The objective of this Aboriginal heritage assessment is to evaluate the potential impact of the proposed development on significant Aboriginal heritage sites and to assess the risk to any potentially significant archaeological deposits, and burials within the study area. This was achieved by reviewing previously recorded archaeological and ethnographic sites close to the designated study area and reviewing and analysing Aboriginal heritage surveys and studies that have been previously undertaken in the district.

The study area at Wallcliffe House estate is situated entirely within the purported boundary of registered Aboriginal site (Department Planning, Lands, Heritage ID 5848 Cliffs at Wallcliffe). The study area partially intersects a second registered site, 4495 Margaret River.

Site 4495 Margaret River is a mythological waterway associated with the Wooditch and Waugal creation myths. Site 5848 Cliffs at Wallcliffe is associated with several myths. These sites have been identified in numerous ethnographic surveys and consultations as significant and important to Noongar people.

A review of previous ethnographic work in the vicinity of Wallcliffe House found that the extent of site 5848 Cliffs at Wallcliffe is significantly smaller than the polygon shown on the AHIS. The cultural value of the site as expressed by senior Noongar spokespersons is directly related to the limestone cliffs, rockshelters and cave.

The existing Boathouse is situated partially within the boundary of registered site 4495 Margaret River. If substantial ground disturbing activities are required for any redevelopment works at the Boathouse the proponent should undertake consultations with senior Noongar spokespersons regarding the submission of a Notice under s18 of the WA Aboriginal Heritage Act 1972.

No known archaeological or ethnographic sites are situated within the area required for any of the other proposed new or reconstructed buildings.

The severe level of historical ground disturbance greatly reduces the likelihood of survival of any archaeological material or burials which may once have existed within the project area. The proposed project poses a very low risk to any sub-surface Aboriginal archaeological materials or burials.

If any human skeletal remains are identified during the project, work must stop in the vicinity of the find, and the police should be notified, in the first instance, to identify the relevant legislative requirements and protocols to appropriately manage the remains.

Wallcliffe House & Landscape European Heritage Considerations November 2019

Table of Contents

Executive Summary ...... 1

1. Introduction ...... 4

1.1. Scope of Works ...... 4

1.2. Study Area ...... 4

1.3. Environment ...... 4

2. Desktop Research ...... 9

2.1. Registered Aboriginal Sites...... 9

2.2.Other Heritage Places ...... 14

2.3.Mid-1990s Development at Wallcliffe House...... 15 May 1996 – Wayne Webb Heritage Survey Report ...... 15 September 1996 - Aboriginal Affairs Department Letter to Shire ...... 15 January 1997 - Aboriginal Affairs Department Letter to Mark Hohnen ...... 16 February 1997 – AAD Ministerial Letter ...... 16

2.4.Previous Ethnographic Surveys ...... 17

2.5.Previous Archaeological Surveys ...... 18

3. Discussion ...... 19

4. Conclusions ...... 21

5. Management Recommendations ...... 22

6. References ...... 23

7. APPENDIX 1 – AHIS Searches ...... 24

Wallcliffe House & Landscape European Heritage Considerations November 2019

Table of Figures

Figure 1 Map showing location of study area ...... 6 Figure 2 Map showing study area ...... 7 Figure 3Map showing proposed development at Wallcliffe House estate ...... 8 Figure 4 Map showing study area and DPLH registered site polygons ...... 12 Figure 5 Map showing study area and pre-2012 DPLH polygons ...... 13

Wallcliffe House & Landscape European Heritage Considerations November 2019

1. Introduction

1.1. Scope of Works

The new owners of Wallcliffe House have engaged Hocking Heritage Studio to prepare an Aboriginal Heritage Assessment for a proposed development within the Wallcliffe House estate.

The objective of this Aboriginal heritage assessment is to evaluate the potential impact of the proposed development on significant Aboriginal heritage sites and to assess the risk to any potentially significant archaeological deposits, and burials within the study area. This was achieved by reviewing previously recorded archaeological and ethnographic sites close to the designated study area and reviewing and analysing Aboriginal heritage surveys and studies that have been previously undertaken in the district. This work provides a basis for the development of suitable recommendations for the management of Aboriginal heritage sites and issues.

1.2. Study Area

The study area comprises the entirety of 752 Wallcliffe Road, Margaret River. The study area is situated on the south eastern bank of the Margaret River approximately 1km north of the Prevelly township and approximately 8km west of the Margaret River township (Figure 1). The study area contains the ruins of Wallcliffe House, its associated structures and extensive gardens. The primary area of 752 has maximum dimensions of 300m north-south and 300m east-west. The property also comprises a narrow corridor of land extending approximately 350m to the east of the primary area towards Wallcliffe Road. The land at 752 Wallcliffe Road has an area of approximately 5.2ha. The study area is shown in Figure 2.

The new owners of Wallcliffe House propose to rebuild a number of structures that were totally or partially destroyed by bushfire in 2011. The new structures will be used for accommodation, a restaurant and other hospitality services. Most of the structures will be built within the highly disturbed footprint of the previous structures. No ground disturbing work will be undertaken along the Margaret River foreshore. All work will be undertaken on ground that has been subject to severe disturbance for a long period of time. A map showing the location of the proposed structures as part of the planned development is shown at Figure 3.

1.3. Environment

The study area is situated on the Leeuwin-Naturaliste coast. This is a narrow strip of sand dunes and Tamala limestone situated on Precambian volcanic rock running from Cape Naturaliste to Cape Leeuwin. The annual regional rainfall of the area is approximately 950mm and is seasonal, with most rainfall occurring during the winter months. The high rainfall and long growing season has led to the development of forest vegetation, with Jarrah and Marri and Karri forests existing in the region with thick heath along the coastal strip (Beard 1981).

Land within the study area has been severely disturbed as a result of European development and occupation since the 1850s. Ground disturbance has occurred as a result of the clearing of vegetation, terracing for gardens and structures, as well as from quarrying and the construction of driveways and access roads. A very small area of original vegetation is present in the southwest corner of the property.

The extensive disturbance to the land surface within the study area will have adversely affected any Aboriginal artefactual material or burials that may once have existed.

An area of remnant coastal scrub and heath extends west of the study area to the Margaret River mouth

Page 4 Wallcliffe House & Landscape European Heritage Considerations November 2019 and south along the limestone escarpment which is situated to the east of the Prevelly and Gnarabup townships. The Wainielyinup cliffs extend west of the study area and run for approximately 300m on the southern bank of the Margaret River. Numerous semi-rural ‘lifestyle’ blocks extend north and east of the study area.

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Figure 1 Map showing location of study area

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Figure 2 Map showing study area

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Figure 3 Map showing proposed development at Wallcliffe House estate

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2. Desktop Research

2.1. Registered Aboriginal Sites A search for registered Aboriginal sites within 5km of Wallcliffe House was undertaken via an online search of the Department of Planning, Lands & Heritage (DPLH) Aboriginal Heritage Inquiry System (AHIS). Registered sites have been deemed by the Aboriginal Cultural Materials Committee (ACMC) to meet the criteria of a Site under s5 and s39 of the WA Aboriginal Heritage Act 1972 (AHA) and are protected under the provisions of the AHA.

The search of the AHIS found that the study area intersects with the purported boundaries of two registered sites (DPLH ID# 4495 Margaret River and 5848 Cliffs at Wallcliffe). The AHIS polygons for both sites are shown in relation to the Wallcliffe House study area on Figure 4.

No other registered Aboriginal sites are situated within or intersect the Wallcliffe House project area. An additional 4 registered sites are situated within 5km of Wallcliffe House. Results of these searches are provided in Appendix 1. Summary details of the sites are presented in Table 1 and short descriptions provided below.

Table 1 Registered Aboriginal Sites within 5km of Wallcliffe House

DPLH ID No. Site Name Status Type

635 Witchcliffe Registered Site Artefacts, Camp Rockshelter

4495 Margaret River Registered Site Mythological

4514 Meekadarribee Cave Registered Site Mythological

5334 Burnside Registered Site Historical, Skeletal material, Burial, Camp, Mission

5848 Cliffs at Wallcliffe Registered Site Artefacts, Mythological, Rockshelter

Rainbow 15992 Registered Site Artefacts, Ceremonial, Rockshelter Cave/Ng’lardup

4495 Margaret River This mythological waterway site was recorded in 1989 by Smith and McDonald and again in 1997. The Margaret River site is considered significant for its association with myths, including the creation story of the Dreamtime ancestor Wooditch. The river has also been associated with the Waugal creation being by Aboriginal spokespersons. The river was used extensively by Noongar people as a source of food and other resources. The site includes the river system in its entirety, including its banks and immediate surrounds as well as its major tributaries. The site is mapped on the AHIS as extending 30m from the banks of the river (Figure 4). This lateral extent is typical of mythological waterways in the southwest. A narrow corridor of land along the northeast of 752 Wallcliffe Road is situated within the site boundary.

5848 Cliffs at Wallcliffe

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This is a composite heritage place that incorporates data that was originally held in the file records of 3 separate heritage places. All information relating to 5848 Cliffs at Wallcliffe, 5849 Margaret River and 21899 Wallcliffe House was subsumed into a single site file in 2012. At the same time, the site boundary for the composite heritage place was created to reflect the pre-existing polygon for 21899 Wallcliffe House (DPLH memo 4 September 2012). Accordingly, the previous spatial polygons for 5848 Cliffs at Wallcliffe and 5849 Margaret River were deleted from the system. The purported boundary of 5848 Cliffs at Wallcliffe in relation to the study area is shown in Figure 4

A summary of the 3 original heritage places that form 5848 Cliffs at Wallcliffe is provided here and their previous spatial boundaries as presented on the AHIS are shown on Figure 5.

5848 Cliffs at Wallcliffe was originally recorded as an archaeological site by Charlie Dortch of the WA Museum in 1974. The site was recorded as comprising several rockshelters and a shallow cave at the base of limestone cliffs situated on the south bank of Margaret River, approximately 200-400m southwest of Wallcliffe House. Stone artefacts and emu shell fragments were found at the site. Dortch notes that the caves contained excavatable deposit.

Archaeologist Pat Vinnicombe visited the limestone cliffs in 1989 and found a number of stone artefacts as well as bone and shell within several of the rockshelters. Vinnicombe also supported Dortch’s assessment that there was excavatable deposit within the rockshelters.

Subsequent archaeological test pitting was undertaken by Dortch of deposit within one of the rockshelters at the western end of the cliffs. As a result of the archaeological work a small amount of cultural material was found but insufficient charcoal was recovered for dating purposes.

The site file for 5848 Cliffs at Wallcliffe also contains newspaper articles and book excerpts dating from the 1920s to 1950s. These excerpts relate to Noongar myths associated with the area and that have been retold by descedents of the Bussell family. Information relating to 3 distinct myths is held in the site file, namely: Edarite and Kedingite, Corrianne and Medinite as well as the Wooditch creation story. These myths all recount deaths or burials in the vicinity of the cliffs at Wallcliffe also known as Wainielyinup or the ‘dying place’.

5848 Cliffs at Wallcliffe was subsequently deemed by the ACMC to be a place that meets the definition of a site under the AHA. Prior to 2012 the site was represented spatially on the AHIS as a circle measuring 800m in diameter and centred on the middle of the limestone cliffs west of Wallcliffe House. The circle is shown on Figure 5 in relation to the study area. This shape was described within the site recording form as a ‘probability radius’ rather than the boundary or actual extent of the site.

5849 Margaret River was recorded as an archaeological location by J.P Smith. This archaeological location does not relate to mythological waterway site of the same name (registered as 4495 Margaret River). The only information relating to this place is an incomplete site recording card used by the Aboriginal heritage department in the 1970s and 80s. The site card describes the location as being situated 50 miles south of Busselton, and in the general location of Margaret River. An imperial grid reference is provided which places the site in an area immediately north of the Margaret River mouth. DPLH had represented this spatially on the AHIS as a box measuring 2km x 2km. A portion of this box is shown on Figure 5 No part of the Wallcliffe limestone cliffs or Wallcliffe House are captured within the DPLH box.

J.P Smith described 5849 Margaret River as: “Burial Ground. Close were also found grinding mills, sharpening stones (obviously made by man) as the Aborigines had a battle in this area, could this be a burial ground.”

No further information is provided about this place. The ACMC deemed that there was ‘insufficient information’ about 5849 Margaret River to determine if it met the definition of a site under the AHA.

21899 Wallcliffe House is a heritage place recorded in 1997 by Simon Choo during an Aboriginal consultation program for the Western Australian Regional Forest Agreement (McDonald Hales & Associates 1997).

Following the consultations with Noongar spokespersons for the Margaret River area, Choo described the physical description of the heritage place as being, “located near Wallcliffe House, there are cliffs, caves and

Page 10 Wallcliffe House & Landscape European Heritage Considerations November 2019 burials the whole place is of spiritual significance to the local Noongar people.” Choo states that the “cliffs are currently being used by abseilers, which is eroding the cliff face and is a cause of great concern to the local Noongar elders.” Choo also notes that the value placed upon the site was born out by the level of concern raised about damage being done to the area by abseilers”. Choo provides no further information about the location or nature of the purported burials.

On the recording form for 21899 Wallcliffe House the boundary of the site is described as extending from AMG coordinates 315000E and 6239000N, northward and westward until it reaches Margaret River. When mapped this shape captures the entirety of the Wallcliffe House estate but only captures a small portion of the Wainielyinup cliffs. In addition, the boundary purported by Choo is inconsistent with the boundary mapped on the AHIS system which encompasses not only the Wainielyinup cliffs, but also Surfers Point and a large area of remnant vegetation south of Margaret River mouth to Surfers Point Road. The boundary also follows other arbitrary features such as firebreaks and cadastral boundaries. The DPLH boundary for 21899 Wallcliffe House is shown on Figure 5.

In 2012 when 21899 Wallcliffe House was subsumed into the site file for 5848 Cliffs at Wallcliffe it was listed as ‘lodged’. This means that the ACMC had not yet made an assessment as to its status under the AHA. The following registered sites are situated outside of the study area but within 5km of it.

635 Witchcliffe Rockshelter This archaeological site is situated approximately 5km south of Wallcliffe House and approximately 1.6km east of the coast. The site is a rockshelter overlooking Boodjidup Brook. In 1995 Dortch undertook archaeological testing of the deposits within the rockshelter. As a result of the excavations Dortch found artefacts and hearths indicating occupation of the rockshelter from between 400 and 700 years BP.

4514 Meekadarribee Cave This is a mythological cave site situated approximately 5km north of Wallcliffe House. The site, recorded in 1990 is reportedly the location of a myth about two young lovers, Mittan and Nobel. The site has no recorded archaeological component.

5334 Burnside This site is situated approximately 4.5km northeast of Wallcliffe House. Burnside is the location of a welfare mission and historical camp for Noongar people. The site is associated with prominent Noongar people including King Bunaditch and Queen Jinny. The site is also associated with Noongar burials.

5334 Burnside was originally recorded in 1997 by Simon Choo during Aboriginal consultations as part of Western Australian Regional Forest Agreement (McDonald Hales & Associates 1997).

15992 Rainbow Cave/Ng’lardup This cave site is situated approximately 1.5km south of Wallcliffe House. Lilley undertook archaeological excavations within the cave and found dateable deposits associated with quartz artefacts and, mammal, fish and shellfish remains.

In consultation with Noongar people for the Western Australian Regional Forest Agreement Choo found that Rainbow Cave is highly valued by the local Noongar community because of the connection it provides with the past and is important socially and culturally.

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Figure 4 Map showing study area and DPLH registered site polygons

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Figure 5 Map showing study area and pre-2012 DPLH polygons

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2.2. Other Heritage Places

In addition to the 6 Registered sites within 5km of Wallcliffe House there are a total of 12 Other Heritage Places (OHP) situated within 5km of the proposed project area (Table 2). All 12 are listed as ‘lodged’ but some had previously been listed as ‘insufficient information’. This means that the ACMC has either not yet decided if these places meet the definition of a site under the AHA or has previously made a resolution that there is insufficient information to make a decision. The nearest OHP to the study area is 5284 Gnarabup Swamp, which purportedly contains artefacts and a shell midden and is situated more than 1km south of Wallcliffe House.

Eight of the 12 OHP are isolated artefacts or small concentrations of artefacts, 1 place is a purported burial, 1 place is a water source and 1 place is a culturally scarred tree.

Results of the search are provided in Appendix 1. Summary details of the OHP are presented in Table 2.

Table 2 Other Heritage Places within 5km of Wallcliffe House

DPLH ID No. OHP Name Status Type

4521 King Bunadaitch’s Lodged Artefact scatter, Skeletal Grave Material, Burial Camp

4559 Kilcarnup Lodged Artefact scatter

4560 Cape Mentelle Lodged Artefact scatter

5284 Gnarabup Swamp Lodged Artefact scatter, Midden

17093 Gnamma Hole Lodged Water source

19267 Caves Road Scarred Lodged Modified tree Tree 2

22115 Burnside Road Artefact Lodged Artefacts Scatter 1

22301 Burnside IF-1 Lodged Artefacts

22303 Burnside IF-2 Lodged Artefacts

22304 Burnside IF-3 Lodged Artefacts

22305 Horseford IF-1 Lodged Artefacts

22305 Horseford IF-2 Lodged Artefacts

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2.3. Mid-1990s Development at Wallcliffe House

In the mid-1990s, then owners of Wallcliffe House, Mark and Kate Hohnen, sought planning approval from the Shire of Augusta-Margaret River for a proposed development within the Wallcliffe House estate. The proposal involved the construction of several new buildings, including a large accommodation structure and a services building to the west of the existing 1850s Wallcliffe House.

Correspondence from the Aboriginal Affairs Department (AAD, now DPLH) indicates that at least two Noongar representatives raised concerns with the AAD regarding the risk to Aboriginal heritage from the proposed development. Accordingly, representatives from the Department contacted the Shire and the proponents which resulted in the commissioning of an Aboriginal heritage survey of the proposed project area. A timeline of subsequent events and a summary of pertinent documents is provided here. The documents are held in Appendix E of the Wallcliffe Conservation Plan prepared by Hocking Planning & Architecture in 1998.

May 1996 – Wayne Webb Heritage Survey Report Noongar spokesperson and archaeologist Wayne Webb undertook ethnographic and archaeological Aboriginal heritage surveys for the proposed development at Wallcliffe House estate.

Webb discussed the project with senior Aboriginal community members including: Vivian Thomson, Morton Hermitage, Mike Hill, Norman Harriss, Ellen Hill, Rose Pell and Rita Wallam.

Webb notes that, “all the local Aboriginal Community had representatives on this survey and no objections have been lodged in regard to this development commencing. Arrangements have been made for our Elder’s to visit the property, and although no-one objects to the development, they would like to visit the ‘Wallcliffe Cave’ site, to discuss the issue of how the best way it can be protected” (Webb 1996, p.1).

During the consultations, proponents Mark and Kate Hohnen expressed their concerns regarding the damage to the nearby Wallcliffe Cave site from abseilers and graffitists. The Hohnen’s proposed that they would be willing to help prevent further damage to the site by keeping people away from the area and reporting any misuse of the site.

As a result of the archaeological survey of the proposed project area, Webb found that the land had been severely disturbed following years of European occupation. Webb states that, “because of the vast disturbances of previous years, any Aboriginal Sites that may have existed have long ago been destroyed and we found no evidence of Aboriginal Occupation in the area of concern.” (Webb 1996, p.2)

Webb concludes that “we can find no reason for any further Archaeological Survey or Study to be conducted in this area” (Webb 1996, p.3).

September 1996 - Aboriginal Affairs Department Letter to Shire An AAD representative contacted the Shire via letter following the submission of the heritage report prepared by Wayne Webb. The letter states that AAD representatives had held discussions about the outcomes of the report with George Webb and Vilma Webb of the Bibblemen Mia Aboriginal Corporation. George and Vilma had originally raised concerns about the proposed development project at Wallcliffe House. As a result of the discussion George Webb indicated that he was satisfied that the development was unlikely to impact on any known sites. Vilma Webb re-iterated her belief that there could be burials near the house. The AAD representatives also met with Aboriginal spokespersons Norm Harris and Bill Webb to discuss the report.

The letter also indicates that an archaeological inspection of the project area by an AAD staff member found no Aboriginal archaeological sites within the area to be developed.

Furthermore, the letter states that following meetings with development proponent Mark Hohnen and AAD staff it was agreed that:

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“Steps be taken to involve representatives of the Aboriginal community at on site meetings and;

An Aboriginal person be asked to monitor work at the stage that significance ground disturbing work occurs (ie when any service trenches are being dug).”

Following the discussions with the Aboriginal community members about Wayne Webb’s Aboriginal heritage report for Wallcliffe House the AAD representative states that: “it appears that most of the Aboriginal concerns have therefore been met and that Aboriginal sites will not be impacted by the proposed development. Provided the above recommendations are followed it therefore appears that the proponent will have met their obligations under the Aboriginal Heritage Act.”

The AAD letter concludes with an offer from the Department to work with all interested parties to ensure the cliffs to the west of the Wallcliffe estate can be properly managed to ensure their protection.

January 1997 - Aboriginal Affairs Department Letter to Mark Hohnen Much of this letter is identical to the letter sent to the Shire from the AAD in September 1996. However, this letter provides additional information regarding the claims of Aboriginal burials at Wallcliffe House by Vilma Webb. In discussions with Vilma Webb she indicated that she was uncertain about the location of the burials but reasserted that there are burials near Wallcliffe House and stressed the importance of the general area which had been extensively used by Aboriginal people and was of significance to them.

The letter concludes that, “at this stage the AAD has not received specific information to indicate that the area of the proposed development is a site in terms of the Aboriginal Heritage Act. In particular, the details of the location of the burials remains uncertain, but such information may still be forthcoming. Should this be the case the proponent would be advised to seek ministerial consent under S18 of the Aboriginal Heritage Act.”

February 1997 – AAD Ministerial Letter In 1997 Aboriginal Affairs Minister Kim Hames wrote to Mark Hohnen. The Minister stated that:

“As Minister for Aboriginal Affairs I am satisfied that you have carried out full consultation with the local Aboriginal people with regard to the land that you wish to develop at Wallcliffe. I regard as essential your commitment to have a local Aboriginal person, recognised and accepted by the local Aboriginal community of site during all excavation or disturbance of ground during the development. I have also been assured by you that should any concerns or discovery be made that will have an effect on Aboriginal people you will immediately stop work and abide by all State and Commonwealth law in respect to the disturbance of a significant site”.

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2.4. Previous Ethnographic Surveys

A search of the AHIS found that a number of ethnographic surveys have been conducted within 5km of Wallcliffe House (Parker and Corsini 1998, McDonald Hales & Associates 1998, Goode 2002, Brad Goode & Associates 2005; 2008; 2012). Aboriginal spokespersons consistently identify Margaret River as an important mythological site. Aboriginal representatives also routinely insist on the importance of the natural environmental. Summaries of the ethnographic surveys are presented here.

Parker and Corsini (1998) undertook an ethnographic survey for a proposed infill sewerage project in the Margaret River township. The survey found that no Aboriginal heritage sites were at risk from the proposed project.

McDonald Hales & Associates (1998) conducted a survey for a proposed sub-division on Burnside Road in Margaret River. No ethnographic sites were identified within the project area. The Aboriginal representatives identified all trees within the project as being of mythological significance but were unable to specify a particular mythological association. Beyond the project area, all the Noongar spokespersons identified the Margaret River as a significant site primarily associated with the Dreaming ancestor Wooditch. Several of the Noongar representatives also stated that the river was associated with the Waugal creation being.

Goode (2002) conducted a survey of the full length of Caves Road and sections of the Bussell Highway. The survey was conducted to identify sites that might be impacted by an attempt to improve safety on Caves Road. Aboriginal consultants involved in the survey were particularly concerned about further work impacting on Margaret River as it is an important heritage site.

Brad Goode & Associates (2005) conducted consultations with Noongar people to establish the Aboriginal cultural values for the Blackwood groundwater area. During the consultations the Noongar spokespersons emphasised the mythological importance of Margaret River and Lake Jasper. They also discussed the importance of the pools, waterways, and springs associated with the Blackwood River in relation to the Waugal creation being.

In 2008 Brad Goode & Associates undertook an Aboriginal heritage survey for the Margaret River recycled water reuse scheme. The project involved the installation of a pipeline across Margaret River as well as the trenching of a second order tributary of Margaret River. The Noongar spokespersons identified Margaret River as an important mythological site and supported the attachment of the pipeline to the top of an existing weir. The participants objected to the trenching of the second order tributary. They stated that the trenching of creeks causes sedimentation which affects water quality in the creeks and ultimately affects the health of the Margaret River.

In 2012 Brad Goode & Associates was commissioned by the Shire of Augusta-Margaret River to conduct an ethnographic survey and Section 18 consultations for a proposed upgrade and redevelopment of coastal infrastructure, roads, car parks and beach facilities at several locations between Gas Bay and the Margaret River mouth. Goode found that the proposed infrastructure works at the Margaret River mouth and Surfers Point intersect the boundaries of 3 recorded heritage places as presented in 2012 on the AHIS. The three heritage places were: 5848 Cliffs at Wallcliffe, 5849 Margaret River and 21899 Wallcliffe House1.

No new ethnographic sites were recorded as a result of the ethnographic consultations. Noongar spokesperson Keith Harris identified that the Margaret River was created by Wooditch, a Dreamtime ancestor. Harris also stated that “he knew that many Nyungar’s had worked and camped on the Wallcliffe property working for the Bussell family and that in the caves along the river were burials. Mr Harris and the rest of the group stated however that they had little specific knowledge of where and who was buried along this river but were aware that graves existed.” (Brad Goode & Associates 2012, pp. 32-33)

Goode also found that in relation to the proposed works at Margaret River mouth and Surfers Point, “it was the view of the Nyungar community that the values of DIA site 5848 Cliffs at Wallcliffe and other heritage places DIA 21899 Wallcliffe House and DIA 5849 Margaret River would not be put at undue risk by the

Page 17 Wallcliffe House & Landscape European Heritage Considerations November 2019 proposal as it is currently planned, as the places where significant values lie are likely to be contained along the Margaret River and in the vicinity of Wallcliffe House.” (Brad Goode & Associates 2012, p. 35)

Despite the finding that the project would not impact on 5848 Cliffs at Wallcliffe, 5849 Margaret River and 21899 Wallcliffe House Goode makes a recommendation that the Shire lodged a Notice under Section 18 of the AHA for consent to use the land within the Margaret River mouth and Surfers Point area. Goode states that this will give the proponent ‘legal surety’.

2.5. Previous Archaeological Surveys

A search of the AHIS found that a number of archaeological surveys have been conducted on land within 5km of Wallcliffe House (Lilley 1991, Dortch 1995, McDonald Hales & Associates 1998, Parker & Corsini 1998, Roberts et al 1999, Greenfeld & Webb 2002, Guilfoyle 2008, Brad Goode & Associates 2012, Brad Goode & Associates 2016)

As a result of these surveys only small amounts of archaeological material have been found. Archaeological material has been previously found within the limestone caves or overhangs situated along the Leeuwin- Naturaliste ridge, on coastal dunes as well as near sources of potable water. Almost all recorded artefacts were made of quartz and very few formal tools or implements were recorded. At least one archaeologist (Guilfoyle 2008) has raised the possibility of sub-surface archaeological being situated in depositional environments such as on the low margins of waterways.

The paucity of archaeological material within the region was attributed to dense groundcover that possibly obscured any artefactual material as well as high levels of ground disturbance from land clearing, agricultural activities and, urban and semi-rural developments.

1 Goode’s work was undertaken prior to the incorporation of these 3 places (5848 Cliffs at Wallcliffe, 5849 Margaret River and 21899 Wallcliffe House)into a single site file for 5848 Cliffs at Wallcliffe.

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3. Discussion A review of previous ethnographic surveys found that the current polygon boundary for registered site 5848 Cliffs at Wallcliffe as shown on the AHIS system is incorrect. The polygon presented on the AHIS is an arbitrary shape that follows modern roads, firebreaks, cadastral boundaries and encompasses the remnant vegetation area north of Surfers Point Road to the southern banks of Margaret River as well as the entirety of the Wallcliffe House estate. There is no ethnographic evidence held in the DPLH site file for 5848 Cliffs at Wallcliffe or within other ethnographic survey reports that supports the current polygon. There is evidence, however, obtained during consultations undertaken by Webb (1996) and McDonald Hales & Associates (2012) with senior Noongar people to support a significantly smaller boundary for 5848 Cliffs at Wallcliffe.

Prior to 2012 site 5848 Cliffs at Wallcliffe was represented spatially on the AHIS as a circle measuring 800m in diameter and centred on the middle of the limestone cliffs west of Wallcliffe House (Figure 5). DPLH identified this circle as a ‘probability radius’ rather than a delineated site boundary.

In 1996 Webb conducted consultations with senior Noongar spokespersons for the proposed development of a multi room accommodation building and associated services to the southwest of Wallcliffe House and entirely within the 800m circle shown on the AHIS for 5848 Cliffs at Wallcliffe. None of the spokespersons objected to the proposed development and no concerns were raised about potential impacts to site 5848. Webb concluded that no further Aboriginal heritage studies were required for the project to proceed.

Subsequent to Webb’s consultations, AAD (now DPLH) officials wrote to the proponents of the development and stated that: “at this stage the AAD has not received specific information to indicate that the area of the proposed development is a site in terms of the Aboriginal Heritage Act.”

In 2012 the 800m circle was deleted from the AHIS and 5848 Cliffs at Wallcliffe adopted the substantially larger polygon of 21899 Wallcliffe House. At this point, all information relating to 5848 Cliffs at Wallcliffe, 5849 Margaret River and 21899 Wallcliffe House was subsumed into the single site file. While 5848 Cliffs at Wallcliffe had been previously assessed by the ACMC as meeting the criteria of a site under the AHA 21899 Wallcliffe House was listed as ‘lodged’ and had not yet been assessed by the ACMC.

The original recording form for 21899 Wallcliffe House was prepared by Simon Choo. The form provides a very vague description of the site. No map or sketch of the site boundary is provided on the site recording form. The recording form states that boundary extends from AMG coordinates 315000E and 6239000N northward and westward until it reaches Margaret River. When mapped, this forms a shape that encompasses the Wallcliffe House estate but only captures a very small portion of the Wainielinyup cliffs. Choo’s proposed boundary for the site is inconsistent with location description recorded on the same form. The description states that the site is, “located near Wallcliffe House, there are cliffs, caves and burials and the whole place is of spiritual significance to the local Noongar people.” Choo also records that the, “cliffs are currently being used by abseilers, which is eroding the cliff face and is a cause of great concern to the local Noongar elders.”

The current polygon boundary for 5848 Cliffs at Wallcliffe (originally the shape for 21899 Wallcliffe House) was tested in 2012 during consultations for proposed infrastructure works at Surfers Point and Margaret River mouth (Brad Goode & Associates 2012). The senior and knowledgeable Noongar spokespersons clearly stated that the proposed works would not put at risk the values of any previously registered Aboriginal sites including 5848 Cliffs at Wallcliffe and 21899 Wallcliffe House.

Previous ethnographic work has shown that there is uncertainty about the potential for burials within the Wallcliffe House estate. All the myths relating to the Wainielinyup cliffs feature burials nearby or within the cliffs’ rockshelters. During the previous development at Wallcliffe House in the 1990s one Noongar spokesperson asserted that there were burials at Wallcliffe House but did not know the precise location. Brad Goode & Associates (2012) also found that Noongars understood that there were burials ‘along the river’ but had no information specific to the location or nature of the burials.

During archaeological surveys within the Wallcliffe House estate no Aboriginal archaeological material or

Page 19 Wallcliffe House & Landscape European Heritage Considerations November 2019 skeletal material has been found. Furthermore, no skeletal material was uncovered during the previous development works at Wallcliffe House. The severe levels of ground disturbance within the Wallcliffe House estate means that it is highly likely that any burials once situated within the study area would have been destroyed.

Senior Noongar representatives have repeatedly asserted the significance of the limestone cliffs situated to the west of Wallcliffe House and have reiterated their desire to protect the cliffs from damage from abseilers and vandals. No objections to ground disturbing activities have been raised during consultations regarding proposed development within the AHIS polygon for 5848 Cliffs at Wallcliffe but removed from the immediate vicinity of the cliffs. In addition, no information relating to the location of historical or mythological burials has yet been recorded. Ground disturbing work undertaken outside of the vicinity of the cliffs will not impact on the cultural values linked to site 5848 Cliffs at Wallcliffe.

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4. Conclusions The study area at Wallcliffe House estate is situated entirely within the purported boundary of registered Aboriginal site 5848 Cliffs at Wallcliffe. The study area partially intersects a second registered site 4495 Margaret River.

Site 5848 Cliffs at Wallcliffe is associated with several myths. The extent of site 5848 Cliffs at Wallcliffe is significantly smaller than the large polygon shown on the AHIS. The cultural value of the site as expressed by senior Noongar spokespersons is directly related to the limestone cliffs, rockshelters and cave.

Site 4495 Margaret River is a mythological waterway associated with the Wooditch and Waugal creation myths. The site includes the river system in its entirety, including its banks and immediate surrounds as well as its major tributaries. The site is mapped on the AHIS as extending 30m from the banks of the river

These 2 sites have been identified in numerous ethnographic surveys and consultations as significant and important to Noongar people

Following an in-depth desktop study of previous ethnographic and archaeological work undertaken within the project area and in the wider area it was found that:

• No known archaeological or ethnographic sites are situated within the area required for the proposed development of the following: Old House, New House, New Wing, Dairy, Cottages, and services buildings.

• The existing Boathouse is situated partially within the boundary of registered site 4495 Margaret River.

If substantial ground disturbing activities are required for any redevelopment works at the Boathouse the proponent should undertake consultations with senior Noongar spokespersons regarding the submission of a Notice under s18 of the WA Aboriginal Heritage Act 1972.

• At least two Noongar people have previously stated that there are burials in the vicinity of Wallcliffe House but were uncertain of the location and nature of the purported burials.

• The severe level of historical ground disturbance greatly reduces the likelihood of survival of any archaeological material or burials which may once have existed within the project area. The proposed project poses a very low risk to any sub-surface Aboriginal archaeological materials or burial

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5. Management Recommendations I. If substantial ground disturbance works are required for the renovation of the existing Boathouse, the proponent should undertake consultations with senior Noongar spokespersons regarding the submission of a Notice under s18 of the WA Aboriginal Heritage Act 1972 (AHA) as it may pose a risk to registered site 4495 Margaret River.

II. Any development application lodged for this project will trigger a referral to Department of Planning Lands & Heritage (DPLH). Given the location of the project within registered heritage sites DPLH will likely recommend that the proponent undertake consultations with the appropriate Noongar spokespersons. As a result of any consultation the spokespersons may request that the proponent lodge a Notice under s18 of the AHA prior to any ground disturbing works commencing.

III. The proponent may choose to pre-empt the DPLH recommendation by commissioning a consultation with the appropriate Aboriginal spokespersons and submitting a Notice under s18 of the AHA. The timeframe for a s18 Notice from commissioning to Ministerial response is approximately 6-9 months. This pre-emptive approach will eliminate any additional delays to the development application process that may eventuate from a referral to DPLH.

IV. If any Aboriginal cultural heritage is discovered during the project that may constitute an Aboriginal site, as described in s5 of the AHA, and the work is not being done under the appropriate Ministerial consent, then works should cease immediately in the area where the Aboriginal cultural heritage is discovered. The proponent must notify the Registrar of Aboriginal Sites at Department of Planning, Lands & Heritage and the South West Aboriginal Land & Sea Council for further advice and may require approvals under s18 of the AHA before work can recommence in the area where the Aboriginal cultural heritage was identified.

V. That any contractors working on the development project are advised of the significance of 5848 Cliffs at Wallcliffe and 4495 Margaret River both because of their spiritual and cultural associations for Noongar people and their obligations under the AHA.

VI. If any human skeletal remains are identified during the project, work must stop in the vicinity of the find, and the police should be notified, in the first instance, to identify the relevant legislative requirements and protocols to appropriately manage the remains.

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6. References

Beard, J. 1981 Swan: Vegetation Survey of Western Australia, University of Western Australia Press, Perth.

Brad Goode & Associates 2005 South West Yarragadee Blackwood Groundwater Area. Aboriginal Cultural Values Survey. Prepared for Department of Environmental Protection Water and Rivers Commission.

Brad Goode & Associates 2008 An Aboriginal Heritage Survey for the Margaret River Recycled Water Reuse Scheme, Western Australia. Prepared for Acent Engineering on behalf of the Shire of Augusta- Margaret River.

Brad Goode & Associates 2012 Report of an Aboriginal Heritage Survey of the Margaret River Mouth to Gas Bay Development Concept Plan, Margaret River Western Australia. Prepared for the Shire of Augusta- Margaret River.

Brad Good & Associates 2016 Report of an Aboriginal Heritage Survey for the Gnarabup Access Road in the Shire of Augusta Margaret River. Prepared for Main Roads Western Australia.

Dortch, J. 1993 Preliminary Assessment of Late Pleistocene Cave Occupation In The Leeuwin-Naturaliste Region. In Report of Recent AIATISIS Funded Fieldwork In the Extreme South-West of Western Australia.

Dortch, J 1995 Late Pleistocene and Recent Aboriginal Subsistence at Tunnel Cave and Witchcliffe Rockshelter, Naturaliste Region, Southwestern Australia.

Goode, B 2002 Ethnographic Survey of Caves Road, Busselton to Augusta and Bussell Highway, Margaret River to Augusta, South West, Western Australia. Prepared for Main Roads Western Australia.

Greenfeld, P. & Webb, W. 2002 Archaeological Survey of Roadside Corridor Along Caves Road (Busselton to Augusta), and Bussell Hwy (Augusta to Margaret River).

Guilfoyle, D. 2008 Report of an Archaeological Assessment of a Proposed Water Recycling Main, Shire of Augusta Margaret River, Western Australia. Prepared for the Shire of Augusta-Margaret River.

Hocking Planning & Architecture 1998 Wallcliffe Conservation Plan. Prepared for MA & CA Hohnen

Lilley, I. 1991 Recent Archaeological Research Around Margaret River, Summary Report to Southwestern Aboriginal Communities

McDonald Hales & Associates 1997 Western Australia Regional Forest Agreement. Aboriginal Consultation Project Volumes 1 & 2. Prepared for The Regional Forest Agreement Steering Committee

McDonald Hales & Associates 1998 Report of an Aboriginal Heritage Survey Sussex Location 972, Horseford Road and Location 412 and Lot 1 of Location 336 Burnside Road, Margaret River, Western Australia. Prepared for Koltasz Smith and Partners.

Parker, R. & Corsini, S 1998 Work Clearance Survey Margaret River Reticulation Area 4a, and adjacent area, as defined for the WA Water Corporation.

Webb, W. 1996 Aboriginal Heritage Survey of Wallcliffe House. To Aboriginal Affairs Department.

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7. APPENDIX 1 – AHIS Searches

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Page 31 APPENDIX F TRANSPORT REPORT Wallcliffe House Proposed Rezoning Traffic Overview

1. EXECUTIVE SUMMARY 1.1. This traffic overview is provided to assist with the proposed rezoning of Wallcliffe House, Wallcliffe Road, Margaret River to allow a future boutique hotel development. The findings of the traffic overview are: 1.2. The proposed development of a 50 room hotel and ancillary restaurant could generate up to 322 vehicle movements per day. During the peak periods up to 32 vehicle movements could occur. 1.3. The level of traffic generated by the proposal would require that a traffic statement be provided in support of a development application. 1.4. In regard to the proposed rezoning, the forecast traffic demands are shown to have no material traffic impact to the surrounding road network. 1.5. The existing site access is shown to be able to accommodate the forecast traffic demands and operate with uninterrupted flow conditions. Under such situations excellent Levels of Service will prevail. 1.6. At the time of a development application, the visibility splay for the access to Wallcliffe Road should be checked and any vegetation restricting visibility must be removed.

2. THE SITE AND SURROUNDING ROAD NETWORK 2.1. The subject land is located to the north side of Wallcliffe Road, approximately 125 metres west of Isaacs Road, Margaret River. 2.2. Wallcliffe Road is classified as a regional distributor under the Main Roads Functional Road Hierarchy and is subject to a 90kph posted speed limit adjacent to the subject land. Approximately 300 metres west of Isaacs Road the posted speed is reduced to 60kph. 2.3. Wallcliffe Road is constructed as a single pavement road of approximately 7.5 metres width. Wallcliffe Road would have capacity to carry 13,500 vehicles per day with operation at Level of Service D. 2.4. Traffic data available on the Main Roads website taken west of Caves Road indicates 4,270 vehicles per day (weekday average) recorded in 2016/17. The daily traffic demands result in operation at Level of Service B (very good).

Riley Consulting (WA) Pty Ltd: Mobile 0413 607 779 A.C.N: 606 466 853 PO BOX Z5578, Perth WA 6831 1017 V2 Wallcliffe House Traffic Overview 05-06-2019.docx Wallcliffe House

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2.5. The traffic data is attached at Appendix A and 5.3% of vehicle movements are trucks. Approximately half the traffic on Wallcliffe Road turns to Surfers Point Road at Prevelly. 2.6. Peak hour traffic demands on Wallcliffe Road are shown to occur between 9am and 10am. The traffic data shows a peak demand of 404 vehicles split 223 eastbound and 181 westbound. During the afternoon a peak demand occurs between 3pm and 4pm with 379 vehicles split 159 eastbound and 220 westbound. 2.7. Although speed data recorded at the count site indicates an average of 50kph, the data is affected by the Caves Road intersection. Speeds adjacent to the subject site would be expected to be close to the posted limit. 2.8. Wallcliffe Road east of Caves Road is shown to carry 5,313 vehicles per day and provides the primary connection to Margaret River townsite. 2.9. Caves Road is classified as a primary regional road in the Main Roads Functional Road Hierarchy. It is controlled by Main Roads. 2.10. Caves Road is constructed as a single carriageway road and would have capacity to carry 13,500 vehicles per day with operation at Level of Service D. Traffic data on the Main Roads web site indicates 2,084 vehicle per day north of Wallcliffe Road and 1,549 vehicles per day to the south. 2.11. Figure 1 shows the location of Wallcliffe House.

Figure 1 Site Location (Site area indicative)

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3. THE PROPOSED DEVELOPMENT 3.1. It is proposed to rezone the site to allow an exclusive hotel of up to 50 rooms and a restaurant catering for up to 90 persons. A dairy of 115m2 is also noted to be able to cater for 40 persons. However no further detail is available at this time.

4. TRAFFIC GENERATION AND DISTRIBUTION 4.1. Reference to the RTA Guide to Traffic Generating Developments indicates that motel type accommodation can be expected to generate 3 trips per room per day. No hotel trip rates are provided by the RTA source. 4.2. Recent hotel developments in Perth have used a trip rate of 5 trips per room per day. Peak hour demands are indicates to equate to 10% of the daily demand. 4.3. On the basis of 5 trips per room per day, an hotel providing 50 rooms could generate 250 vehicle movements per day. During the peak, 25 movements may occur. 4.4. The restaurant would have capacity for 90 persons and would require a minimum floor area of about 120m2. As a high-end facility it can be expected that the floor area would be greater to provide more space between tables. 4.5. Reference to the RTA Guide to Traffic Generating Developments indicates that restaurants can be expected to generate 60 trips per 100m2 floor area per day and 6 trips per 100m2 during the peak hour. Thus a floor area of 120m2 would generate 72 trips per day with 7 peak period trips). 4.6. In reality if the hotel is full then the hotel guests could utilise 100 seats based on occupancy of 2 persons per room. (If the hotel is full, then the restaurant capacity tis likely to be exceeded and two sittings would be required. As a result the expected external attraction would be significantly reduced. 4.7. As stand alone facilities, the subject site could generate up to (250 + 72) 322 vehicle movements per day. 4.8. During the road network peak a maximum demand of 32 vehicle movements may occur. However, the proposed development would not be expected to generate significant peak hour traffic movement. Traffic would be evenly spread throughout the day.

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5. TRAFFIC IMPACTS 5.1. Reference to the Western Australian Planning Commission Transport Assessment Guidelines for Developments indicates that where a development generates between 10 and 100 vehicle movements during the peak period, a traffic statement should be prepared to support a development application. 5.2. In regard to the proposed rezoning, it is calculated that the forecast daily traffic generation of 322 movements per day would equate to just 2.3% of the capacity of Wallcliffe Road based on operation at level of Service D1. 5.3. Under the WAPC guidelines the proposed hotel and restaurant would have no material traffic impact. The forecast traffic demands would not warrant any local road upgrading.

6. ACCESS 6.1. Access to the subject site will be taken at an existing access location to Wallcliffe Road. The access services 3 properties and the Margaret River rowing club. 6.2. The access is a private road and therefore is required to provide visibility in accordance with Australian Standard 2890.1. A minimum visibility of 130 metres would be requited. 6.3. However, Wallcliffe Road is a rural road subject to a 90kph posted speed limit in the vicinity of the subject site. It is highly recommended therefore that Austroads Safe Intersection Sight Distance of 214 metres (201 metres minimum) in both directions be provided along Wallcliffe Road. 6.4. As the access exists the visibility should already be available2. 6.5. Reference to aerial photograph indicates that 227 metres of visibility can be achieved to the west and 284 metres can be achieved to the east. Visibility in accordance with Austroads is possible. However, adjacent vegetation may have grown to impede the visibility splay and this will require cutting back. 6.6. The forecast peak traffic demand is shown to be 32 vehicles, which could be expected to coincide with the existing peak hour demand on Wallcliffe Road. Reference to Appendix B indicates that with the current demand of 404 vehicles using Wallcliffe Road during the peak period, a side road demand of up to 250 vehicles could be accommodated with uninterrupted flow conditions. Under these conditions Austroads advises that no further assessment is warranted.

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6.7. With a maximum peak demand of 32 vehicles it can be seen that the access would operate with uninterrupted flow conditions. No further assessment of the access is warranted. 6.8. With a peak demand on Wallcliffe Road of 404 vehicles, the number of turning movements would not be expected to warrant the provision of turning lanes. Further, it is not expected that the proposed hotel peak period of activity would coincide with the peak period of traffic using Wallcliffe Road.

7. CONCLUSION 7.1. The proposal to provide a boutique hotel on the existing grounds of Wallcliffe House is expected to have no material traffic impacts. 7.2. All local roads have ample capacity to cater for the forecast traffic demands and no road upgrades would be required to cater for the proposed development. 7.3. Access to the subject land is already provided and visibility in accordance with Austroads requirements can be achieved. 7.4. There are no reasons to expect that the proposal would have any adverse traffic or road safety impacts to the local road network.

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APPENDIX A TRAFFIC DATA

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APPENDIX B AUSTROADS TABLE

Page 8 of 8 APPENDIX G DESIGN TEAM ABOUT MJA STUDIO ABOUT SIBELLA COURT

MJA Studio is a tight knit family of Architects + Designers, a With a History and Fine Arts Degree from Sydney University, dynamic studio who share a common desire to create works majoring in Australian History, and 25 years of industry that are generous to the end-user, sympathetic to their experience, Sibella carries a bag of hard-won magic tricks context and have enduring value for their community. which she weaves into her role as an interior & product designer, creative director, author, globetrotter and content ABOUT PAUL BANGAY creator. Sibella has a deep appreciation and respect for place, history Paul Bangay is one of Australia’s most well-known landscape and the natural environment and will focus on reflecting those designers. For more than twenty-five years, Paul Bangay has throughout Wallcliffe house. designed gardens all around Australia and across the world. Her inimitable and immersive approach is seen in many Paul has also written various books about garden design and commercial spaces including Palmer & Co, Mr Wong, Hotel landscaping. Some of his well-known books include The Palisade, Ms. G’s and Watson’s Bay Boutique Hotel. Enchanted Garden, The Boxed Garden, The Balanced Garden and Paul Bangay’s Garden Design Handbook. Sibella has penned a library of six best-selling books and in 2015 hosted ABC’s TV series Restoration as well as ABOUT SPENCER FUNG contributing to many lifestyle, home, design and luxury magazines such as Vogue, Belle, Town and Country, House Spencer has a wealth of experience working with listed and Garden and Conde Nast travel publications to name a heritage buildings. He approaches architecture in a sustainable few, in the United States, United Kingdom and Australia. way, instinctively looking for environmentally-friendly building solutions to restore and enhance historic houses.

A ‘naturalist architect’, he specialises in finding otherwise overlooked, organic local materials, from which he develops iconic features to create a bespoke language for every project.

A pioneer of crafts in architecture, Spencer engages with views, orientation and light and is inspired by the local landscape and culture. He collaborates with skilled craftspeople to design buildings that are unique, tactile and sensual. His hallmark is beautifully bespoke buildings that are in harmony with nature and stand the test of time.

Spencer trained at Cambridge University and the Architectural Association School of Architecture and founded Spencer Fung Architects in 1990.

Wallcliffe House, Margaret River | LSP1 Amendment Request APPENDIX H ENGINEERING SERVICING REPORT

WALLCLIFFE HOUSE Margaret River

Local Planning Scheme Amendment

Engineering Aspects

6th December 2019

Project Ref No: 8038 thecivilgroup I Wallcliffe House – LPS Amendment - Engineering Aspects I page 1

Table of Contents

1. Context, proposals, and infrastructure ...... 3 2. Geology, Topography, and Groundwater ...... 3 3. Demolition, earthworks and shaping of land ...... 4 4. Water - potable and fire-fighting ...... 4 5. Water - non-potable - irrigation ...... 5 6. Wastewater ...... 5 7. Gas Supply ...... 7 8. Electricity ...... 7 9. Communications ...... 8 10. Stormwater ...... 8 11. Pavements ...... 9 12. Summary ...... 9

Disclaimer:

This document is copyright and is published in accordance with and subject to an agreement between The Civil Group WA Pty Ltd (The Civil Group) and the Client (Wallcliffe House Pty Ltd) for whom it has been prepared (“Client”). The Client may rely on and use this document only for the purposes agreed with The Civil Group. No other person or organisation may rely on or use this document for any purpose without first obtaining the prior written consent of The Civil Group.

If either the Client relies on or uses this document for a purpose not agreed with The Civil Group; or any other person relies on or uses this document for any purpose without first obtaining the prior written consent of The Civil Group they do so at their own risk and The Civil Group will have no liability in tort, contract or otherwise for any loss, damage or injury of any kind whatsoever that may be suffered directly or indirectly as a consequence of relying on or using the estimates or assessments for any other purpose.

The Civil Group retains the intellectual property in all documents produced in connection with the Services provided to the Client. The Civil Group grants the Client a licence to the intellectual property in all documents produced in connection with the Services for any purpose for which the Services were provided. If the Client is in breach of any obligation to make a payment to The Civil Group, The Civil Group may at its sole discretion revoke the licence. If The Civil Group revokes the licence then the Client must return all documents produced by The Civil Group in connection with the services, including any copies within 21 days of the date of revocation of the licence.

The Civil Group does not warrant the accuracy of any estimates or assessments of likely development costs that The Civil Group may prepare. The quantities and assessments of likely costs are only an indicative engineering estimate. The assessments are based on The Civil Group’s experience on similar projects and they are only valid for the day on which they are published. Any estimates or assessments of likely costs should only be used by the Client and only for indicative budgeting purposes together with an appropriate contingency. thecivilgroup I Wallcliffe House – LPS Amendment - Engineering Aspects I page 2

1. Context, proposals, and infrastructure

This report, with its comments about the utilities and related infrastructure and their capacity, supports a proposed Amendment of the Shire of August-Margaret River’s Local Planning Scheme that is being prepared by the Town Planner, Taylor Burrell Barnett.

The Scheme Amendment is to apply to Lot 101 (№ 752) Wallcliffe Road Margaret River on DP No 49026 (the Land) and it will broaden the permitted land uses from tourism area to include other tourist uses including hotel, chalet, reception centre, and ancillary and related uses consistent with the heritage values of the Land.

The development of the Wallcliffe House land may necessitate upgrades to the capacity of existing utilities. Such services’ upgrades may include some or all the wastewater collection and disposal, water supply, firefighting water supply, electricity, gas, and communications services.

A concept plan of the proposed development of the Land is presented in Appendix A.

2. Geology, Topography, and Groundwater

The Land generally slopes south-east to north-west with an average grade of about 10 to 15%. Whilst this average slope is quite steep, existing development has stepped down the grade of the Land to near the edge of the Margaret River in an overall landform of an elongated amphitheatre. The topography is shown in Appendix B.

According to the geotechnical engineer CMW Geosciences1, the geological map for the area depicts the land as being underlain by the Leeuwin Complex comprising fresh to weathered Granite. The hills to the west of the Land comprise the Spearwood Dunal System sand over coarse-grained limestone.

Specifically, on the Land, however, the site investigation found the distribution of the Spearwood Dunal system extended east across the Land and granite was only observed towards the riverbank on the west side of the Land. Some pinnacle limestone with sand was observed and it was seen to have a variable strength from low to high-strength.

With the overlying Spearwood Dunal sand, the Land is suitable for disposing of stormwater by infiltration. Insitu tests of permeability suggest soakage rates of between 3 to 8 metres per day.

The possibility of Karst Formations was considered and some parts of the Land predominantly under or near the main buildings may have a higher Karst risk, whereas the eastern and northern parts of the land are likely to be low risk. Some further investigations

1 “Proposed Building Development Wallcliffe House Geotechnical Investigation Report” by CMW Geosciences dated 10th October 2018.

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will be undertaken after demolition and/or removal of rubble and clearing of the buildings damaged in the fire.

Groundwater was not encountered on the Land when test pits were undertaken but it is likely to be at or near the water level of the River as evident by a dam near the boathouse that reveals the groundwater surface after winter rains. The groundwater is likely to be confined by the underlying granite and flow through the overlying sand/limestone layers.

3. Demolition, earthworks, and shaping of land

A critically important aspect of the proposed development is to fit any buildings into the Land in a manner that creates the least disturbance both physically and aesthetically. To do so is an art-form that blends the layering and levels of the Land in such a manner that shapes and senses the feel of the land. This approach will especially consider the trees on the Land and look to take advantage of them to help breakup the starkness of structures otherwise if not placed sympathetically.

The damaged buildings on the Land will be carefully and selectively cleared of rubble – most of which will be sorted, saved, and reused where possible. Parts of buildings that are unsafe and unsound will be pulled down, again preserving material that can be reused. Metal will be removed and recycled. Timber in the buildings or on the land that is undamaged will be picked out of the rubble, stored and reused. Most timber, however, is burnt. Bricks and concrete are planned to be crushed to create road base material to be reused on the land for any new pavements. If possible, at least one and possibly two chimneys on the old house will be rescued, dismantled, with each part logged and numbered so that they can be rebuilt.

4. Water - potable and firefighting

The Water Corporation has been consulted to ascertain the current potable water infrastructure near and serving the Land and to determine what upgrades may be required into the future.

The Land is served from a 150 mm distribution pipeline located along the eastern side of the Wallcliffe Road reserve. The Land is currently served with a 20 mm diameter domestic service. This will need to be increased to suit the proposed development.

The distribution pipeline and hence the water service to the Land, is subject, however, to control-of-supply and is part of a boosted (i.e. pumped) scheme. Control-of-supply in this context means that the same capacity of supply cannot be assured if the electricity system in the district is off – this would similarly affect the Prevelly townsite. The Baudin Drive high- level tank (i.e. with a top water level of 110.6 mAHD and a 1,500m³ capacity) located about 1.85 kilometres south-east of the Land would continue supply to the district but with a lower rate of supply during a power outage. This control-of-supply means that development of the

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Land will require a suitably sized header tank designed to maintain supply for a stipulated period of time during a power-outage.

The Water Corporation system cannot be relied upon for firefighting and hence a specific fire water system with suitably sized tanks and stand-by power supply will be designed and incorporated into the development for the Land.

Refer to Appendix C for details of the water supply scheme network.

5. Water – non-potable - irrigation

The irrigation system on the Land is currently supplied from two low-yielding bores positioned in the shallow aquifer. One bore is near the dam in the northern part of the Land and the other is near the Land’s south western corner. Water is pumped to two tanks located just west of Wallcliffe Road near the access driveway into the Land. These two tanks then irrigate the Land by gravity. The system in summer runs three days per week and the tanks rarely if ever run dry from each day’s cycle time.

Future irrigation water demand is likely to be slightly more than the historical use. The existing system is proposed to be retained upon development of the site, upgraded to suit the larger irrigated area, and probably supplemented via treated wastewater. It is likely that the use of groundwater for irrigation as part of the tourism land uses will need to be licenced pursuant to the Rights in Water and Irrigation Act 1914. This will be determined in consultation with the Department of Water and Environmental Regulation (DWER) and addressed accordingly.

6. Wastewater

The houses on the Land were in the past served by on-site domestic-scale treatment units. These systems will be located then suitably and properly decommissioned. Development of the Land will, however, increase the demand for wastewater collection and disposal. There are two possible means for disposal of wastewater. One is by use of a package wastewater treatment plant (WWTP) located and contained on the Land, or alternatively by means of a private wastewater pumping station (WWPS) and pressure main to the Water Corporation’s reticulation system in the Prevelly townsite.

As a principle, the project team would prefer a package WWTP for its water recycling benefits to avoid wasting the water and to contain and manage the system as whole to reuse the treated water. Such a system, however, is much more complex and will need more sophisticated management and maintenance compared with a connection to the Prevelly townsite sewer system, with particular consideration of managing nutrients.

Wastewater will be collected from each new building by means of gravity property sewers to one or several small WWPS’s that each in turn will pump the wastewater to a single facility. thecivilgroup I Wallcliffe House – LPS Amendment - Engineering Aspects I page 5

As noted, that single facility might be a package WWTP or a private WWPS and in each case the disposal options are as follows:

Discharge into the Water Corporation’s system

The nearest potential outfall to accept wastewater pumped from the Land to Prevelly is at an existing WWPS located opposite and to the west of the intersection of Chuditch Place and Bandicoot Close – about 2.5 kilometres south of the Land (called the Chuditch Place PS). The private pressure main would be located along the road reserves of Wallcliffe Road then Chuditch Place and discharge into the wastewater system near the Chuditch Place PS. The Water Corporation, in commenting about this option, said that it may be feasible and would depend on there being capacity in their system to accept the pumped flows. Later, during the design-development phase, more specific analysis would be undertaken to confirm that there is capacity.

A sketch of the nearby townsite and its relationship to the Land for this option is shown in Appendix D.

On-site package WWTP

The preferred option will be chosen to be the most appropriate for the Land and is likely to be an Activated Sludge Bioreactor Plus (ASBR+) package WWTP or similar. Such a system can treat domestic strength wastewater to achieve high quality treated water suitable for reuse in non-potable applications, such as above-ground spray irrigation. An ASBR+ system can achieve waste and nutrient stripping to potable water standards. It this therefore likely that such a system will be considered. Such a system will be adopted along with an operation and maintenance agreement to ensure that the system operates reliably to a high standard suited to the development. The storage that will be built into the system will ensure there is time for an operator to attend the site and for brief power outages. The system will be monitored by both Hotel staff and the maintenance contractor to respond in a timely manner. A back-up generator will ensure constant electricity supply to the wastewater system in the event of power outages.

This means and it is acknowledged that if an onsite package WWTP is adopted, appropriate management of nutrients and health considerations will need to be demonstrated to the satisfaction of the DWER, the Shire of Augusta Margaret River, and the Department of Health. As noted, backup electricity and buffer-storage tanks will be incorporated into the wastewater system to avoid any risk of overflow and spillage entering the environment in case of a breakdown.

Based on the typical specification for this type of system, an ASBR+ plant could reduce total nitrogen to less than 10 mg/L and total phosphorus down to 1 to 2 mg/L. If spray irrigation is applied, this may increase the uptake of nutrients when compared to below ground disposal.

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Reusing the water within the development’s irrigation system’s tanks will mix the treated water with the pumped groundwater and will also reduce demand for pumping groundwater from the two bores on the land.

Further investigations will allow the most suitable option for wastewater disposal to be chosen at the detailed design stage. An onsite package WWTP is preferred because it provides a future-proof source of water for irrigation so helping to make the non- potable water system for the development resistant to climate-change.

The project team acknowledges that if an onsite package WWTP is adopted, appropriate management of nutrients and health considerations will need to be demonstrated to the satisfaction of the DWER, the Shire of Augusta Margaret River, and the Department of Health.

Backup electricity and suitable buffer-storage tanks will be incorporated into the wastewater system (i.e. both options) to avoid any risk of overflow spillage entering the environment in case of breakdown of part of the system. Maintenance contracts will be set up to ensure response times are stipulated and guaranteed and the system is then designed to suit this.

Further detailed studies of costs, benefits, fail-safes, and long-term management of either system will be undertaken to choose the better option for the long term. An onsite package WWTP is, however, preferred because it provides a future-proof source of water for irrigation so helping to make the non-potable water system for the development resistant to climate- change.

7. Gas Supply

Reticulated gas is not available in this district and the past development relied on LP gas bottles.

For the development proposed, it would be intended to install a LP gas tank with capacity to serve all the gas demand – be that kitchens and all hot water systems on the Land.

8. Electricity

Electricity to the Land is supplied via high voltage (HV) powerlines to the east of the Land as shown on the plan which is an extract from Western Power’s Network capacity mapping tool – refer Appendix E.

An HV underground supply is located along the entrance road into the Land to a transformer and main switchboard that serves the Land. The existing 315-kVA transformer will be replaced and upgraded with a 1,000-kVA transformer to serve the proposed development.

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In keeping with best practice and to support the resort’s aim to minimise its impact on the environment, PV cells supported by batteries will be considered to supply the primary source of electricity to the Land. Roof areas on the carparks and support buildings are likely to be suitable taking advantage of the size of the rooves and obviating the need for such devices on the primary buildings. Other options for electricity generation such as a small wind turbine/s or gas turbines with the latter for back-up power will be investigated. A back-up power generator will be incorporated into the system to ensure critical services are unaffected by power outages.

9. Communications

The NBN Co connection map depicts that their Sky Muster satellite system will provide broadband communication services to the Land. The system is in place now and arrangements can be made with an internet service provider to connect to the system.

As an alternative, the firm OptiComm - a Tier 1 Telco provider and the largest independent residential broadband infrastructure provider in Australia – was asked if they could provide a broadband link. Their initial response was that costs may be high but with time during the scheme amendment process, the option can and will be further considered to provide other fibre-optic based and/or wireless broadband connections.

It is expected that a mobile phone booster system will be needed for each provider (e.g. Telstra, Optus, etc.) within the development as mobile signal strengths are unreliable the nearer a phone user is to the River.

10. Stormwater

As noted in the geotechnical investigation and based on a detailed inspection of the Land, stormwater runoff from the Land is already being managed in accordance with best practice to ensure that direct discharge of runoff to the River does not take place.

The access road to the Land for example is unkerbed and runoff is sheeted away from the pavement into the adjoining landscaped or natural bush areas.

While the proposed development will lead to some more impermeable surfaces – mainly rooves on new resort buildings (e.g. the chalets), this is unlikely to change the peak-event stormwater runoff significantly. Water Sensitive Urban Design practices will be adhered to. Roof runoff will be disposed of by soakwells or low-profile sheet-flow when erosion or concentration of flows can be managed or may be harvested for onsite use. All pavement areas will be graded, shaped and managed to dispose of runoff by sheet flow. Low-profile sheet flow over natural or artificial landscaped surfaces will largely obviate the need for either bio-retention or detention basins. The exception to this may be some minor vegetated swales immediately adjacent to higher use pavement areas. These would be designed to capture and treat the minor amounts of hydrocarbons and sediments that may be present on thecivilgroup I Wallcliffe House – LPS Amendment - Engineering Aspects I page 8

these areas. Where required, some localised pavement areas may be collected via gully grate and directed to soakwell/subsurface infiltration as currently occurs on site.

No direct discharge of any runoff to the River currently occurs, and this is not planned or contemplated for the development.

Refer to the Water Management Strategy (Emerge Associates, 2019) for more details on stormwater management.

11. Pavements

In the same way that buildings are to be fitted into the Land, so will all pavements.

All pavements within the site will be designed and controlled to ensure that pedestrians and electric (golf) carts are the primary users with all other vehicles having a very secondary and limited access.

Kerbing of pavements will be avoided as much as practical so as not to concentrate stormwater runoff. Flush kerbs on roads will allow runoff to flow away by low-profile sheet- flow and then overland where most will soak away. Pavements will be designed to ensure traffic speeds are less than 10 to 15 km per hour and always to give pedestrians priority. Vehicle movements near the buildings will be restricted to arriving and departing guests and deliveries, with all other cars parked in the carparks and then using electric (golf) carts for transport of guests and staff.

Where kerbs are needed, runoff will be collected in conventional collection pits, piped to disposal areas but then discharged into parts of the Land to reproduce low-profile sheet-flow – so reversing the concentration of flows. The collection of runoff from such areas will be designed in a manner to keep contributing catchments as small as possible meaning that less runoff has to be managed in each sub-system and so avoiding higher flows when concentrated.

12. Summary

A summary of this “Engineering Aspects Report” about key servicing and development infrastructure follows. The summary comments on what is serving the Land now as well as what upgrades are needed.

Shaping the Land

A critically important aspect of the proposed development is to fit any buildings into the land in a manner that creates the least disturbance both physically and aesthetically. To do so is an art-form that blends the layering and levels of the Land in such a manner that shapes and senses the feel of the land. This approach will especially consider the trees on the Land and thecivilgroup I Wallcliffe House – LPS Amendment - Engineering Aspects I page 9

look to take advantage of them to help breakup the starkness of structures otherwise placed unsympathetically.

Wastewater

The development is planned to be served by means of a small network of gravity collection property sewers with collected wastewater pumped to either an on-site package wastewater treatment plant or be pumped to an existing Water Corporation sewer in the Prevelly townsite. Further detailed studies will allow the better and more suitable option to be chosen. Any onsite disposal system will demonstrate appropriate consideration of nutrients and human health.

Water Supply – potable and non-potable

The land is served from the Water Corporation’s reticulation system and that service will continue albeit with a larger diameter water service meter.

Irrigation water is by means of two shallow bores to tanks and thence a gravity reticulation system. This system is proposed to be retained but may be supplemented via treated wastewater.

Electricity and Communications

Electricity to the Land will be by means of an existing high voltage system already in place and connected to the Western Power network. This system is planned to be enhanced and boosted by PV cells, batteries, possibly other renewable options, as well as backup generation systems in case of outages.

The NBN Co network already covers this district by satellite and it will serve the proposed development of the Land. Alterative Telco’s will, however, be asked to offer alternative broadband connections.

Stormwater management

The existing stormwater management practices of infiltration/management via low-profile sheet flow will be maintained. While the development will lead to some more impermeable surfaces – mainly rooves on new resort buildings (e.g. the chalets), this is unlikely to change the peak-event stormwater runoff significantly. Water Sensitive Urban Design practices will be adhered to. Roof runoff will be disposed of by soakwells or low-profile sheet-flow when erosion or concentration of flows can be managed or may be harvested for onsite use. All pavement areas will be graded, shaped and managed to dispose of runoff by sheet flow. Low profile sheet flow over natural or artificial landscaped surfaces will largely obviate the need for either bio-retention or detention basins. The exception to this may be some minor vegetated swales immediately adjacent to higher use pavement areas. These would be designed to capture and treat the minor amounts of hydrocarbons and sediments that may be present on these areas.

thecivilgroup I Wallcliffe House – LPS Amendment - Engineering Aspects I page 10

No direct discharge of any runoff to the River currently occurs, and this is not planned or contemplated for the development.

Pavements

In the same way that buildings are to be fitted into the Land, so will all pavements.

All pavements within the site will be designed and controlled to ensure that pedestrians and electric (golf) carts are the primary users with all other vehicles having a very secondary and limited access.

Kerbing of pavements will be avoided as much as practical so as not to concentrate stormwater runoff.

Vehicle movements near the buildings will be restricted to arriving and departing guests and deliveries, with all other cars parked in the carparks and then using electric (golf) carts for transport of guests and staff.

thecivilgroup I Wallcliffe House – LPS Amendment - Engineering Aspects I page 11

APPENDIX A

Scheme Amendment Concept

Spencer Fung Architects

in conjunction with

MJA Studio

21st November 2019

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APPENDIX B

Topography

LiDAR contours

November 2018

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APPENDIX C

Existing Water Infrastructure

Water Corporation

Legend

Existing water main

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APPENDIX D

Existing Wastewater Infrastructure

Water Corporation

Legend

Sewer main

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APPENDIX E

Western Power

High Voltage powerlines

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