500000mE 550000mE 600000mE 650000mE

500 00 5000 6

400 500 HUMMOCKY HILLS 200 100 1200 600

3500 300 900 900 200 4000 800 1000 3000 5500 500 400 Long Point

200 400 500 2500 2000 1000 500 GREAT Epping 1500Forest 300 700 500 800 200 700 500 W Breona ILD ESK 600 400 600 600 DO 1300 Avoca G MACQUARIE T Poatina 1300 IE 200 R 300 700

300 200 400 MACLEAN 500 RIVER 400 500 RIVER 200 200

St 300 400 BAY 300 Pauls River 1100 500 400 1300 300 Conara 1300 1200

300 RATS CASTLE BRADYS1300 500 400 RIVER LO O’CONNERS 200 300 400 700 500 WESTERN PEAK

800 300 300 600 100

1200

LAKE 400 200 200 500 400 700 Peggys Pt 400 400 1300 500 200 Bicheno 700 West 400 600 400 900 800 River 1000 800 Swan River Liawenee 700 300 1300 1100 400 GREAT 600 600

1100 200 400 Elizabeth 900

1000 1200 100 800 100

LAKE 1200 Campbell SNOW 400 500 800 200 BADAJOS 1100 300 Town HILL MIILERS 400 600 Cape Lodi 700

100 1100 BLUFF1100 MACQUARIE TIER River 300 200 600 Courland 300

200 Swan 600 600 100 100 1100 1100 Bay 300 ARTHURS 700 900 600 TIER

600 300 100 Butlers Pt 600 400 300 100 LAKE 1000 900 300 200 400 TIERS 400 400 100 100 600 300 700 1000 800 Miena 500 300

1100 600

5350000mN 700 5350000mN 1100

1000 200 1000 BARREN 1000 1100 900 300 LAKE 1100 TIER 300 LEAKE 1000 Moulting 1000 300 Ross 600 700 100 MT 500 600 200 Lagoon 200 500 1000 PENNY 1100 300 700 1000 200 400 700 River 1000 WINGYS

300 700 200 Friendly Pt 900 PARRAMORES

500 MT 500

900 FRANKLIN 400 200 WOODS 300

900 800 LAKE 1000 LAKE 500 HWY LAGOON 100 900 900 GAVINS TIER 700 500 TIER OF SORELL 100 100 Ouse ISLANDS 300 800 500 600 600 DIAMOND KNIGHTS TIER 900 400 S 200 200 LO CO 300 700 500 TIER TT TIER S BAKERS TIER 600 1000 Shannon 1000 Swansea Coles Bay Waddamana TIER MIDLAND 300 Hepburn Pt 900 900 CAPE TOURVILLE LAKE 800 Tunbridge200 500 Coles Bay 600 ECHO 500 500 THE QUOIN500 BELLEVUE 300

400 300

200 THE HAZARDS 600 LAKE 300 900 200 NNON TIE Webber Pt GREAT 100 Thouin Bay A R River River SH 900 900 CRESCENT 400 700 400 100200

600 900 800 CAPE FORESTIER 900 400 200 Macquarie 500 300 Promise 900 300 OYSTER 400 600 900 600 100 800 Bay 400 BLACK TIER 600 Clyde 500 500 700 900 400 MT 300 700 300 Shelly Pt MT GRAHAM 400 TOOMS BAY 300 600 400 800 500 400 800 1000TABLE MT FREYCINET 600 500 100 300 Gates Bluff MTN 400 TOOMS 800 800 400 Weatherhead Pt 500 LAKE 400 600 500 HIGHWAY 600 500 200 LAKE 500 River 500 800 500 600 600 Mayfield Bay

800 200 BRADYS 600 300 900 600 SL Buxton Pt

500 700

300 600 700 500 600 500 Slaughterhouse Bay

500 WOODS 400 R QUOIN HWY 700 400 500 CAPE DEGERANDO

800 100 E Boags Pt

I 700 400

T 600 500 Schouten Passage 400 500 200 Oatlands TASMAN E 600

700 V I River 400 600 T 700 R

600 E 300 A 500 I 600 T N 400 400 Little SCHOUTEN 400 Swanport Jordan S L 100 ISLAND 100 L 200 OUSE 500 400 400 500 A 200 800 H 100 500 S 400 River CAPE BAUDIN 500 R 300 A 300 R M CAPE FAURE E Osterley 300 I 600 T 500 Parattah 400 600 500 S 400 200 CAPE SONNERAT E 400 400 100 Pt Baily N A 400 L 400 MT

500 500 500 500 500 SEYMOUR 400 300 400 400

400 400 1000500 500 600 500 Bothwell 500 500

300 400 600 200

300 300 500

400 500 400

300 200 400 400 400 500 500 400 400 300 100 500 500 RIVER 500 LAKE 200 300 200 100 400 TIBERIAS

800 400 400 400 300 700 500 600

500 400 400 DEN HILL 300

300 500 200 200 400 600 400 Grindstone Pt 600 400 500 5300000mN 600 BLACK TIER 400 5300000mN

CLYDE 600 300 Tunnack

200 300 600 300 400 200 Melton Mowbray 100 Middle Bluff 500 River 700 400 500 400 Woodsdale 200 500 500 700 600 500 400 MT 400 300 200 500 500 500 100 Coal THUNDERBOLT Ouse 400 600 300

300 600 RIVER 300 100 600 BLUESTONE TIER 400 Triabunna 200 400 500 200 500 300 400 600 700 500 400 600 500 200 600 100 CAPE BOUGAINVILLE 300 SEA 400 200

700 300 100

300 100 400 200 Kempton 300 400 Colebrook 300 600 300 200 300 500 300 QUOIN 600 300 MTN 400 400 800

RIVER 500 500 700 400 100 Pt Home Lookout

100 100 600 Hamilton Prosser Bay 300 MT River 200 SPODE Orford 300 Quarry Pt CAPE BOULLANGER 400 400 200 200 400 500 600 Prosser 200 DERWENT TAYLORS 300 100 100 1100 500 600 200 JORDAN

400 300 300 TIER600 200 300 300 600 500 700 300 400 600 1000 200 300 MT 300 200 BROWN MTN Johnsons Pt 300 400 Buckland 400 200 500 300 MARIA 100

600 900 Ellendale 500 400 400 400 1100 600 300 300 200 Bagdad 400 BUTLERS HILL 300 300 400 500 400 100

RODWAY 100 300 300 200 200 1000 PASSAGE 500 200 MARIA MT RIVER Mangalore 800 700 MISTAKEN CAPE 400 ISLAND 800 400 300 FIELD MT FIELD 700 1100 400 500 Pt WEST EAST 500 200 200 1300 500 Campania 1200 Westerway Lesueur Little Raggedy Gretna100 100 300 100 300 300 Riedle Head RANGE 200 Pontville 1200 800 Bay 1300 200 300 900 300 300 1100 N 100 200 a 600 700 tio n 200 400 200 al 700 300 Park 200 Bushy Brighton 200 200 Macquarie 300 200 MT DROMEDARY 200 Park 500 MEEHAN 100 300 Plains 300 200 200 400 400 MERCURY 400 400 500 300 200 400 300 300 CAPE MAUROUARD 400 400 200

300 800 CAPE BERNIER 100 200 Orielton 400 200 200 100 700 200 300 TYENNA 300 300 BRIDGEWATER Richmond 100

200 RANGE 900 100 400 RIVER 400 400 Granton CAPE PERON 100 1000 RIVER

900 300 100 100 100

RIVER 700 Maydena 500400 300 100 100 DERWENT 300 300 300 600 100 100 200 MAYDENA RANGE 300 1000 STYX 400

100

300 MARION NEW 600 700 SORELL 500 800 200 300 500 NORFOLK 300 MIDWAY

200 100 300 RIVER POINT 600 400 300 TASMAN 300 Forcett BAY 100 600 200 300 500 900 100 100 Lachlan 200 400 Copping 100 MT STYX Lewisham S 700 500 GLENORCHY 300 N 400 O 1000 800 W 600 200 Y Collinsvale 200 R 700 CAPE PAUL A N 900 MT 200 200 200 Dodges Ferry 400 LAMANON G LLOYD E 600 200 SNOWY PLENTY 700 500 300 200 300 1100 900 900 800 SEVEN MILE NORTH 500 MT 100 RUMNEY BEACH CAPE FREDERICK 100 100 800 RIVER RANGE Spectacle 900 100 1100 100 HENDRICK 600 1000 Head

900 900 900 800 1000 Dunalley Blackman Bay 1000 100 WELLINGTON 1100 100 1200 HOBART 800 700 800 1200 600 5250000mN 600 SNOWY MT Sands 5250000mN 500 WELLINGTON 200 200 800 LAUDERDALE Primrose 600 700 Fulham MT 200 DERWENT HIGH 1300 500 300 Mays Pt Primrose Point 1000 Point FORESTIER YELLOW 400 900 Fern Tree 1100 300 300 400 BLUFF 600 100 SNOWY 800 100 WELLINGTON RANGE 100 FREDERICK HENRY 200 1000SOUTH

1200 200 500 400 RANGE 700 300 400 100 1300 700 200 100 BAY Lime Bay

700 Murdunna 200 300 500 300 Ralphs Cremorne 400 CAPE

200 100 SURVILLE 100 100 300 Ironstone

600 MT MISERY Longley Point WELD400 Grove KINGSTON Bay 500400 RIVER 100 NORFOLK 200 MINERAL RESOURCES 200 Sandfly CAPE DESLACS TASMANIA 200 300 RIVER 100 BAY 500600 MT 300 1200 300 400 100 700 NORTH 200 WELD 200 300 400 100 300 300 WEST 0 200 400 Deer Pt 1100 N 500 CAPE Eaglehawk Neck O Glen Huon 500 HEAD Tasmania U

400 CONTRARIETY 200 SOUTH ARM 100 1000 H HUONVILLE Pirates Bay DEPARTMENT of INFRASTRUCTURE 100 100 500 100 Margate 500 ENERGY and RESOURCES 800 200 900 100 600700 200 300 300 600 100 200 500 200 400 CAPE North 200 400 400 100 500 300 DIRECTION 100 0 Taranna SOUTHEAST TASMANIA 200 West Waterfall Bay 500 Bay 200 400 300 Snug Koonya 100 700 CAPE DE LA SORTIE OUTER NORTH 200 GROUNDWATER QUALITY MAP 500 200 TATNELLS HEAD 200 HILL500 500 300 300 100 400 GREY MTN 100 100 200 300 200 Franklin 700 200 RIVER HUON 200 400 Nubeena 400 600 200 Cradoc 300 WEDGE 400 Thumbs Pt 300 100 100 200 300 Barnes BAY 200 Kettering Bay The Yellow Hippolyte 300 B This map is complimentary to the main 1: 250 000 SE groundwater map. There is usually a degree of vertical stratification in the groundwater quality within the aquifers and results presented represent a a r y Bluff Rocks nes Ba 200 200 composite value of salinity from drill holes at a particular time. Natural groundwater quality is influenced by annual rainfall and the evaporation (e.g. high rainfall, low evaporation areas tend to have better quality 300 400 Port Arthur 100 groundwater then low rainfall, high evaporation areas), the composition of the rock types through which the groundwater passes and is stored in and by physical properties of the rocks such as permeability and 400

500 100 100 STORM 200 porosity. Human activities such as extensive groundwater pumping, pollution from various waste disposal activities and use of chemicals (agriculture, forestry, industry etc.) also may have negative effects on 100 100 CAPE Port Huon 100 groundwater quality. 800 Port HAUY MT PICTON 400 RIVER Cygnet Arthur 1100 Woodbridge Two Island 1000 700 Trumpeter Bay 900 400 Bay 300 600 Geeveston 100 200 BAY 100

200 100

400 400 S 200 200

O 300 100 300 U T 200 H 400300 300 MUNRO P 700 200 I C HUON 400 Great RIDGE T BIGHT 500 MT O MT CYGNET Salters Pt 600 200 N 100 Bay Variety Pt RAOUL West Arthur R 400 300 A HARTZ KERMANDIE500 00 600 200 Head 300 N 900 Chuckle 1000 400

900 1000 RIVER 500 G 700 100 Head Raoul

E L 100 500 TAYLORS 100 Bay MAINGON BAY CAPE 500 Middleton E 400 300 PILLAR 800 MTNS 100 200 200 300 N 600 00 1000 DIVIDE 300 N MOUNT 500 300 400 400 800 A Isthmus CAPE HOPETOUN CAPE RAOUL HARTZ PEAK 400 H QUEEN ELIZABETH C Bay 200 200 300

100 700

400 500 200

400 100 800 100 ADVENTURE 700 800 900 400 300 200 1000 500 200 1000 900 BAY

400 600

900 X MT BOBS Dover 800 PICTON U 600 A Alonnah 100 500 300 E 100 800 T 700 S Port A 600 00 500 Esperance C NEW 500 E R 500 200 T N Ventenat Pt 500 1000 1100 200 E 5200000mN 900 ’ 300 Adventure 5200000mN ADAMSONS Scott Pt D Bay PEAK 400

200 500 FLUTED CAPE

500 MT 300 Salinity contours of deeper Tertiary Aquifers

400 MANGANA 200 700 1500 (500 mg/L contour interval) 300 400 Longford Area (Geological Bulletin 59) 200 Cape Connella 500 100 200 700 400 300 100

BRUNY 100 100 200 800

100 Hopwood 400 Hastings Point Southport Great 100 200 SALINITY 800 Mangana Bluff PROSPECTIVITY NUMBER RANGE Taylors 400 ROCK GROUPS VULNERABILITY TO POLLUTION 600 AQUIFER TYPE (Whole of Tasmania) GROUNDWATER QUALITY COMMENTS RIVER 800 RANGE OF BORES (mg/L)

300 200 Southport Bay PRECIPITOUS 600 900 100 800 400 RIDGE Quaternary aeolian deposits marginal to the coast consisting of fine to 20 210 - 5000 Quality is good enough for the water to be used for a wide range of purposes. Extensive pumping can result in a reduction of quality due to seawater intrusion High. 1000 BLUFF Cloudy POROUS medium grain size sand. or lateral movement of salty water from sediments in adjacent areas, for example at Seven Mile Beach, Nine Mile Beach, South Arm, Bruny Island. 700 900 HIGH 900 Bay (INTERGRANULAR)

800 300 MOONLIGHT 900 Quaternary coastal plain deposits consisting of sand, clayey sand, and 46 1840 - Quality is variable and salt content may limit uses in some areas. This aquifer often occurs in low rainfall/high evaporation areas and this can have a major Moderate to high. 900 MT BRUNY POROUS MODERATE - West 400 gravel, underlying areas near the coast. 112000 affect on quality, for example at South Arm Peninsula. Depends on whether low permeability material overlies the aquifer. (INTERGRANULAR) HIGH 900 Southport Bluff 100 Probable marine origin. MOUNT1000 Cloudy LA PEROUSE Head Quaternary, alluvium and talus deposits. 34 210 - Water quality in the coarser sediments is often good. Nearby surface streams may recharge them. Low to high. CAPE Boreel Head 100 POROUS LOW - The alluvium usually consists of clay, together with sand and gravel deposits 8290 Clayey material at the surface will aid in protecting groundwater at 1000900 BRUNY (INTERGRANULAR) MODERATE with varying clay content. depth including underlying aquifers. Coarse-grained aquifers 900 1000 700 without such protection are vulnerable as are aquifers underlying 500 300 TASMAN HEAD The talus consists of boulders and usually has a moderate to high clay 400 content. these materials. Eliza Pt Minor windblown sand on sloping bedrock. Terrestrial origin. Menzies Prion Tertiary sediments consisting of clay, sand and gravel.Variable thickness up 138 535 - 5800 Water quality is variable in these sediments and salinity often reaches levels that seriously limit use, for example at Coal River Valley and parts of the Low. Bluff POROUS Bay (INTERGRANULAR) LOW - HIGH to several hundred metres. Launceston Tertiary Basin around Campbell Town. Near-surface, lower yielding zones often contain water with elevated salinity levels. (generally clay layers overlie the aquifers in most cases). Lacustrine and alluvial sediments. 300 Recherche Bay Pt Cecil S500 200 100 OU Triassic sandstone (lithic and quartz), mudstone, minor coal, terrestrial origin. Quality is variable and salinity restricts use at many locations. Near-surface, lower yielding zones often have poorer quality groundwater than deeper high High. TH MEAN ANNUAL RAINFALL FRACTURED ROCK C Fishers Pt yielding zones. Low rainfall/high evaporation is likely to have a major contribution to this. High sulphate groundwater occurs in the Permian rocks at some Low permeability material at the surface will offer some protection A (Intergranular on HIGH Permian mudstone, siltstone, sandstone (often pebbly), minor limestone and P 100 locations, for example just north of Tunnack. Triassic rocks at Dodges Ferry are particularly prospective but water quality limits use at some locations. Upper and vulnerability may be reduced to low to moderate. 500 E some horizons) conglomerate. Mainly of marine origin, glacial conditions, minor zones of 100 R 1787 116 - 13790 Triassic mudstone and associated carbonaceous zones (including coal) tend to have poorer quality water. A 100 terrestrial origin.

N

G Ordovician to Devonian turbidite sequence of sandstone and mudstone 6 Groundwater quality is likely to be similar to that in similar rocks to the north where salinity is mostly low, allowing for a wide range of uses. High. 400 E Second LOCATION DIAGRAM MODERATE- (Mathinna Supergroup). A thick layer of low permeability material covering the aquifer will 200 FRACTURED ROCK Shoemaker Lookout Pt HIGH reduce vulnerability. Point 100 (High on this map) Cambrian and Precambrian rocks in the southwest. South 200 100 Tertiary basalt. 181 560 - 8390 Quality is variable and salinity is often moderate to high which restricts use. This applies to the Sorell area particularly, and some areas around Campbell Town High. Cape Bay and Ross. Low rainfall/high evaporation is likely to be a major cause of higher salinity values. Very occasionally deep clay soils may offer some protection and Big Trumpeter Bay FRACTURED ROCK HIGH SOUTH CAPE Soldier lower vulnerability. Bluff NORTHWEST NORTHEAST SOUTH EAST Jurassic dolerite. 480 70 - 11200 Quality is variable and salinity in low rainfall areas is often at levels that restrict use. The high value of 11,200mg/L was taken from a bore just north of Sorell. Moderate. Higher rainfall areas commonly have much better quality groundwater, for example on the Tasman Peninsula. Can be high if highly fractured zones are not covered by low CAPE FRACTURED ROCK Minor Cretaceous syenite and Cambrian and Precambrian rocks and MODERATE Tertiary basalts ( Bream Creek area). permeability material.

Devonian granitic rocks. 4 1700 Groundwater quality data for granites are sparse in this region. Similar granitic rocks from other locations in the Northeast Tasmania have moderate Low to moderate. salinity levels which restrict groundwater use. Can be higher if localised highly fractured zones are not covered FRACTURED ROCK LOW - MODERATE by a layer of lower permeability material. (Low on this map) 1. Statistics provided in the legend are based on deep boreholes entered in MRT groundwater database (BORIS) by February 2003. Boreholes shown on the map are those with locations mainly supplied by drillers and from location in the field by MRT staff. 2. There are many spear bores installed for investigation and production purposes in coastal sand deposits in Tasmania. Salinity ranges for some of the Quaternary aquifers in south-east Tasmania have been obtained from these borehole records and included in the legend (marked with a star ). SOUTHWEST SOUTHEAST 3. Small elevated areas of any hydrogeolgical unit will usually have lower prospectivity because of limited storage and high drainage rates. 4. In areas where there is little or no water bore data, the groundwater prospectivity has been assumed to be similar to that in areas where data are widely available. 5. The southeast part of the state that this map covers includes a major portion of the State that has low rainfall / high evaporation and which is subject to soil salinity problems. Low rainfall / high evaporation is also probably the cause of the relatively poor quality of groundwater at many locations in the region.

While every care has been taken in the preparation of this data, no warranty is given as to the correctness of the information and no liability is accepted for any statement or opinion or for any error or omission. No reader should act or fail to act on the basis of any material contained herein. Readers should consult professional The rainfall map shows the mean annual rainfall over Tasmania for the standard 30-year period from 1961 advisers. As a result the Crown in Right of the State of Tasmania to 1990. It was derived by the Climate and Consultancy Section in the Tasmania and Antarctica Regional and its employees, contractors and agents expressly disclaim all and Office of the Bureau of Meteorology, from a gridded analysis prepared by the Bureau’s National Climate any liability (including all liability from or attributable to any Centre. The analysis system blends measured rainfall with topography to give estimates of rainfall for negligent or wrongful act or omission) to any persons whatsoever in each area. The results will be less accurate in mountainous or data-sparse regions, and may differ respect of anything done or omitted to be done by any such person in from the observations at individual locations. reliance whether in whole or in part upon any of the material in this data. Crown copyright reserved. 5150000mN 5150000mN 500000mE 550000mE 600000mE 650000mE

INKS ARE LIGHT SENSITIVE WARNING: Plotfile for this map generated from digital data: 05-OCT-2006

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