EIS 1036
ABO1 9735
An environmental impact statement for the quarrying and processing of Granodiorite and Basalt at "Lucas Vale", Brogo
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EN\T I RQN NT1L.I I 'IA'T EI'1ENT FcR TH QUPRR' I NG AN1D P HOcJE 3 I Nc c,Fr. 3RANQ]J I JR I T E AII1D 10.A L 'r (SUPPLEMENTARY REPORT)
NSW DEPARTM MiNERAL RESOURCES 2 DEC 1994 LIBRAy
COWMAN STODDART Pty1 Ltd1 TOWN PLANNING & ENVUIONMENfAL CONSULTANTS
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I cQrEr E I I 1.0 INTRODUCTION I 2.0 ARCHAEOLOGICAL STUDY 3.0 WATER AND SEDIMENT MANAGEMENT I 4.0 JUSTIFICATION FOR QUARRY I 5.0 SUPPLEMENTARY NOISE IMPACT ASSESSMENT 6.0 NOISE REDUCTION MEASURES I 7.0 VISUAL IMPACT I
I .PFPENID I CES
I Appendix A Letter from Department of Planning I Appendix B Archaeological report Appendix C Supplementary Noise Impact Report (including Noise Reduction Measures and details of I Berm location and dimensions). I I I I I I I I I I Page 4 1.0 INTRODUCTION I This Supplementary Report to the E.I.S has been prepared at the request of the Department of Planning and Bega Valley Council. I A number of issues were raised during the assessment of the proposed quarry which the Department felt had not been fully I addressed. As a result, additional studies were commissioned and the findings of those studies are reported in this Supplementary I Report. No attempt has been made to reproduce the contents of the original E.I.S and it is assumed that persons reading this I report will be familiar with the project. I I I I I I I I I I I I I I I Page 5 2.0 ARCHAEOLOGICAL STUDY I A preliminary study of the quarry site was conducted by Mr. 3ohn Hackwell in 1993 during which no archaeological sites I were located. The National Parks and Wildlife Service rejected Hackwell's report on the grounds it failed to meet the Service's minimum standards for archaeological reporting and I insufficient consultation was undertaken with the Bega Local Aboriginal Land Council. South East Archaeology was thereby requested to re-examine the proposed quarry site and prepare I a report to the standard required by the National Parks and Wildlife Service. The investigation proceeded by recourse to the Aboriginal and environmental background of the district, followed by consultation with the Bega Local Aboriginal Land I Council and a comprehensive field survey of the study area. No Aboriginal archaeological sites were located during the I current survey. The primary recommendation is that there are no archaeological constraints to the development proposal. I The report by South East Archaeology has been reprinted in full as Appendix B. Three copies were forwarded to the Regional Archaeologist of the National Parks and Wildlife Service on 7th February and one copy to the Bega Local I Aboriginal Land Council. I I I I I I I I I I Page 6 3.0 WATER AND SEDIMENT MANAGEMENT I As requested by the E.P.A. water pollution controls will be based on all water leaving the site passing through one of the sediment control dams to be constructed in the I depressions at either end of the quarry. Adequate storage will be provided for a 1 in 10 year 24 hour storm flow. I Calculations From Aust. Rainfall & Runoff. I Rainfall intensity for a 24 hour duration storm = 9 mm/hr. I =10 CPA = 10 x 0.35 x 9 x 24 x Catchment Area I = 756 x Catchment Area m3 The catchment area for the northern dam is 1.2 ha and the I southern dam 0.8 ha. Volume = 756 x 1.2 I = 907 m3 northern dam Volume = 756 x 0.8 I = 604 m3 southern dam Thus the required dam capacity to meet E.P.A requirements is I 907m3 for the northern dam with a catchment of 1.2 ha and 604m3 for the southern dam with a catchment of 0.8 ha. A diagram titled "Sediment Control Dam Capacities" is 1 attached from Caddey, Searl and Jarman, Registered Surveyors of Bega. This states, and illustrates, that dams could be physically constructed in these depressions with capacity of I 1,100 m3 (northern) and 660 m3 (southern). I NOTE: NO CERTIFICATION AS TO THE STRUCTURAL ADEQUACY OF THESE DAMS IS INTENDED OP IMPLIED. THESE DIAGRAMS ILLUSTRATE THAT DAMS CONSTRUCTED IN THE LOCATIONS SHOWN WOULD HAVE THE STATED CAPACITY.
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SOUTHERN SEDIMENT DAM NORTHERN SEDIMENT DAM Water Level = RL 76.0 OLYtQTt pQ Water Level = 1_1 -O4-1 Top of Darn Wall = RL 76.5 = RL 75.5 Top of Darn Wall Capacity to RL 76 = 1100rn3 DarnCapacity to RL 75 = 660rn3 Cdrnj-7t Avra -3ZQ--' hvriqvl Aa O•q - Wcr- ManaQ..rr7Q-7-f Pr) c Wa1r P10r7
Parish: MUMBULLA Scale: 1:500 CADDEY SEARL AND JARMAN Shire: SEGA VALLEY Drawn: GS SEDIMENT CONTROL DAM CONSULTING SURVEYORS AND VALUERS Locality: BROGO Surveyor: 10 CANNING STREET 60 MAIN STREET 4/2 WALLAGA ST. BERMAGUI Date: 21/01/1994 CAPACITIES BEGA NSW 2550 MERIMBULA NSW 2548 3/160 INLAY ST, EDEN Ref: 23872 Datuni: AHD PRONE:064-922933 PHONE: 064-951044 I Page 7 SOIL AND WATER MANAGEMENT PLAN I The catchment for the two dams have been reduced by the use of catch drains and diversion banks as shown on the attached Plan. "Clean" water now bypasses the quarry and sediment I dams and discharges from the diversion banks directly into the watercourse at the base of the hill.
* Diversion Banks. The banks at R.L. 80 each have a catchment of less than I 1 ha and a length of 90 metres. Time of concentration = 10 minutes. I Rainfall intensity 10 minutes 5 year intensity = 105 mm/hr. Peak discharge q = CiA I 360 q = I 360 I = 0.12 m3/sec. Hydraulic radius a = q v
I Bank cross sectional area = 0.12 0.55 I = 0.22 m2 For a 20 year return period a = 0.3 m2 I It is intended to construct the banks with a cross sectional area of 1.0 m2 which will provide a large safety margin against overtopping. The grade of the banks will be 0.25% to reduce I scouring in the channel and aid the deposition of coarse sediments. Sediment traps of 5 m3 capacity will be constructed at the ends I of each diversion bank, prior to runoff entering the sediment control dams. These will act as a stilling pond in which coarse sediments will be deposited prior to leaving the quarry site. I Their value will be in reducing the frequency of desilting the two main sediment control dams.
I I I I Page 8 Water Supply Dam This is planned to have a capacity of 500 m3 and will supplement water supply from the Brogo River. It will be constructed at R.L. 100 in the northern depression above the I processing site. As shown on the plan, a diversion bank or catch drain around the top of the quarry will provide a water catchment for the I dam. The dam will have a long spillway bank following the contour on the northern side. Discharge from the spillway will be picked up by a second bank lower down the hillside I to ensure water bypasses the sediment control dam. In a similar manner a diversion bank will be constructed in the southern depression at R.L. 80 to prevent clean water I flowing into the sediment control dam as shown on the plan.
Topsoil preservation Topsoil has an average depth of 100 mm across the site and will be conserved wherever possible. I This includes the site for the dams, the processing site and the quarry itself. The topsoil will be stockpiled on the quarry site immediately below the catch drain at R.L. 105. I Much of it will be re-used very quickly on critical areas such as dam batters. In any case all stockpiles will be I sown with a pasture mixture to prevent erosion. I 1 I I I I I
I I © I L AN1D WAE' 1E R ]I?4E N 'r IP IN I NORTH I
I TREE I PP I I I TREE OO I I I LT I
I / 7 LEGEND I Sediment control dam R.L. 75 Diversion bank Stage I R.L. 95 Stage 2 R.L. 80 I Limit of extraction 4010000 Processing site I D RILL HOLES ' EDGE OF TREES Access road
I PLAN SHOWING Berms CONTOURS & DETAIL Catch drain around I OVER PART OF top of quarry. 'LUCAS VALE S BROGO Diversion Bank. I Catchment ooundarv. I Water suprv darn. I I Page 9
4.0 JUSTIFICATION FOR QUARRY
a) Drilling programme A drilling programme comprising four (4) drill holes I was undertaken by Boral early in 1993. It was on the basis of these results that Mr. Lucas decided to proceed with the quarry. Although it may not have I suited Boral to continue to the D.A. stage, the quality and extent of the rock resource was quite suitable for I a small quarry such as that proposed. Mr. Lucas or his representative was present at all times during the drilling programme. They discussed the results with the drilling team and a representative I from Boral. The results indicated that the rock occurred at varying I depths and was covered with material comprising soil, clay and loose rock. I Boral considered all this material, (soil, clay and loose rock) as overburden which would be stripped prior to quarrying the hard rock underneath. However Mr. Lucas intends to separate the loose rock and make use I of it. I b) Concrete aggregate and roadbase A sample of loose rock (1.5 tonnes) has been crushed at Brogo and found to be of excellent quality for concrete I aggregate. (See attached letter). A sample has also been tested for roadbase material quality by the Snowy Mountains Engineering Corporation Li and the results are attached. These indicate that the wet strength of the aggregate exceeds the minimum value of 150 kN specified by the R.T.A. for crushed road I base, while the wet dry strength variation is considerably less than the maximum allowable value of I 35%. I I I I I I I Page 10 Vol unte s I The volumes calculated in Section 4.1 of the E.I.S. are correct. They indicate the estimated quantity of material between 1.0 m below ground level and R.L. 80 is 375,000 tonnes of which the D.A. seeks to extract I 250,000 tonnes. Thus, while there is a proportion of soil and clay in the top 6 metres which has no value, there are ample quantities of rock on the site from I R.L. 80 to 105 m. I Type of rock With regard to the type of rock, the Department of Mineral Resources has stated: I "Our mapping indicates that the location is underlain by a granite rock type called Kameruka I Granodiorite." This is the pink surface rock which is underlain by I hard blue quarry rock, (termed basalt in the E.I.S.). I I I I I I I I I I I I U F•UL. 1?' 19. 10:56 KELLOI.1 FflRBERY BEGA 168 P02 U BEGA VALLEY DISTRIBUTORS PTY. LTD. I cRI_J;HED AGGRECATF5 ND READy MIXED CONCRETE SUPPLIERS
flhot w! I Begi (064) 92143.3 Brogo Crusher (064) 927255 24 Church 5ree, Beg 2550 U I 17 Povernber 1993 I I $.] I We wiSli to corif inn that recently Guy Lucas supplied us with a ssmple of loose surface rock from his property. We crushed the materiAl and we I found the metal material suitable for use in mrrnfacture of our ready- mix products. I Yours faithfully, ltftFk 11JF'IFI Tm I
I Jeff Sproates Manager I I I I I I I I I
I SNOWY MOUNTAINS ENGINEERING CORPORATION LIMITED GEOMECLIANICS LABORATORY
I RESULTS OF LABORATORY TESTING OF CRUSHED BASALT I Report No. 93086
I Dispatched sample of 30 kg of crushed basalt was subjected to sieving and results are given below.
I Passing sieve 95 13.2 19.0 - mm Retaining sieve - 9.5 13.2 19.0 I mm Mass of rock 4.445 4.665 17.200 5.205 I kg
I Nominal size of sample (after second crushing of particles exceeding 19 mm? - 25 kg. I Size of test portion: aggregate passing 19.0 mm sieve and retaining on 9.5 mm sieve. Wet strength (10% of fines less 2.36 mm) - 335 kN. I Dry strength (10% of fines less 2.36 mm) - 410 kN. I Wet/dry strength variation - 18. Notice:
I Typical average values for basalt from AS 1141.22
Number of Samples I Wet/Dry Strength II I Dry Srgth Wet Str ngth Tested I g Variation II I 54 340 280 20 I I I I I Report No. 93086 1 I I Page 11
5.0 SUPPLEMENTARY NOISE IMPACT ASSESSMENT The Department of Planning has requested that further noise studiesbe undertaken on residences closer than 1000 metres to the quarry. Only one residence on land not owned by the Lucas family falls into this category. Location "F" is a future house site on land owned by Mr. & Mrs. P. Boreham south west of the quarry. The distance to the quarry has now been measured as 800 metres and to the processing site as 890 metres. Noise levels were measured at Location F and the acoustic designobjective calculated for the site as 41.5dB(A). If a berm is constructed on the southern perimeter of the quarry the worst case scenario is a continued noise level of 38.5 - 39.5 dB(A) with all equipment operating. If the mobile equipment is operating north of the centre of the quarry, the combined noise level is 36 dB(A). Thus in all cases, the acoustic design objective is able to I be achieved for the nearest residence. This is discussed in more detail in the full report which is attached as Appendix C.
6.0 NOISE REDUCTION MEASURES I These are set out in detail in Appendix C as is the location and dimensions of the berms. I I I I I I I I I I CADDEY, SEARL AND JARMAN I . CONSULTING LAND, ENGINEERING AND MINING SURVEYORS NSW AND VIC AND CONSULTING VALUERS
I A.R. JARMAN, M.I.S. Aust-Phone:92 1607 AH 10 CANNING STREET, BEGA NSW J.W. LANGFORD, A.A.I.V.-Phone:94 1620 AH C.J. MAXTED, M.I.S. Aust-Phone:92 2507 AH P0 BOX 259, BEGA. 2550 (Registered Valuer No. 972) J.T. HOUGH, M.I.S. Aust-Phone:94 1782 AH C.A. FERGUSON, A.A.I,V.-Phone:94 1290 AH (Registered Valuer No 319) TELEPHONE: STD(064) 92 2933 I OUR REF: 23766 FAX:(064) 922934 YOUR REF: I 13 December 1993
MR P COWMAN I COWMAN STODDART PTY LTD P0 BOX 738 I NOWRA NSW 2541 Dear Sir I RE: PROPOSED "LUCAS VALE11 QUARRY SITE at BROGO
I have surveyed between the quarry site and the I house site as pointed out by Mr Lucas.
The bearing and distance between the north west corner I of the dairy and the centre of the excavation for the cottage is 223° 43' 50" 799.23 metres. I This is shown on a sketch plan attached. Yours faithfully I CADDEY SEARL & JARMAN I
R JRMAN MIS AUST. I egisered Surveyor I I I I I
I BRANCHES: 60 MAIN STREET, MERIMBIJLA WALLAGA STREET, BERMAGUI SHOP 3, CNR CHANDOS & P0 BOX 488 2548 TELEPHONE: (064) 93 4197 IMLAY STREETS, EDEN TELEPHONE: (064) 951044 TELEPHONE: (064) 96 3246 I FAX: (064) 95 3070 NORTh
LOT2 DP 22884
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23077260 LOCALITY PLAN mu 'tLUCAS VALE' QUARRY SITE
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7.0 VISUAL IMPACT Concern has been raised about the visual impact of the I quarry particularly from Location F. Due to the topography there will be no views of any part of the processing site or any machinery or vehicles associated with it. A cross sectional diagram is attached. It is I unlikely that the quarry itself will be visible due to the orientation of the quarry face. I While the berm will be visible it will be planted with grasses, shrubs and trees as part of the early landscaping stage. The dense bushland beyond the berm will remain for several years after which the vegetation on the berm will I provide adequate visual screening. I I I I I I I I
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U) U) CADDEY SEARL AND JARP4AN U) U) U) C.) CONSULTING SURVEYORS AND VALUERS U) U) a- 10 CANNING ST BEGA NSW 2560 PH: 064-922933 Lu FAX: 064-922934 U) U) SURVEYORS REF: 23872 25/02/1994
INFORMATION COMPILED FROM 1: 26000 BROGO TOPOGRAPHIC MAP SCALE 1: 10000 HOP 1:1000 VER
DIAGRAM SHOWING PROFILE FROM PROCESSING SITE TO PROPOSED HOUSE SITE ON LOT 1402 DP 628436 I I I I I I I Apenthx A Letter from Depart:ment of Planning
I I I Li I 1 I I I 1 -
New South Wales Government
Department of Planning
I / Remington Centre 175 Liverpool Street, Sydney 2000 Box 3927 G.P.O. Sydney 2001 I The General Manager DX. 15Sydney Bega Valley Council P0 Box 492 Telephone :(02) 391 2000 Ext: 1 BEGA NSW 2550 207 I Fax No. :(02) 391 2111 oe.ga Valley Shire Council 1 Contact: I Thomson -3 DEC 1993 I eNo...... 1...... ..CERED BY BthDftG I ie 93/1239 ciio No...... & FLANNIr
'ctCfl ...... ...... I -6 DEC 1993 Dear Sir, .. BEGA d Officer...... I - co ...... PROPOSED pu1RRyT coT—r,1yP2 21 8AGtjUCAS.VALE' ROGO
Thank you for your letter dated 12 November, 1993 which forwarded I copies of the submissions received during the period of public exhibition for the above matter. I The Department has examined the submissions and considers that this proposal is not appropriate for determination by Council, taking into account the various matters that have been raised. I In this regard it is noted that considerable concern has been expressed in the submissions about the adequacy of the EIS. Council should, in the circumstances, satisfy itself that it has I adequate information to determine the application. It is suggested that the applicant clearly define the noise I reduction measures to protect the amenity of any residence closer than 1000m and nominate the monitoring of noise and vibration that would be carried out. Mitigation measures at nearest residences I should also be outlined. The applicant needs to resubmit proposals for water management how effective containment of contaminated I on site, and demonstrate runoff would be obtained. A new archaeological study is also required. I Upon receipt of an appropriate response from the applicant to matters raised in submissions and advices, the supplementary information needs to be placed on exhibition and further comments I invited. If the additional information adequately addresses the concerns of the EPA, CALM, NPWS and other agencies, the Council would be in a position to determine the application. Council may well inquire from the EPA if the supplementary information is such I that indicates that the proposed quarry is capable of being licenced. [1 -2-- I 7. The Department may also be able to offer draft conditions for consideration at that time. I Yours faithfully
I /If, B Adams Manager I Assessments and Major Hazards Branch I I I I I I I I P— I I I I I I I
I AN ARCHAEOLOGICAL REASSESSMENT OF A PROPOSED HARD ROCK QUARRY I AT LOT 1, D.P. 221884, BROGO, NSW. I I I 1 A report to Cowman Stoddart Pty Ltd I P0 Box 738 No\vra NSW 2541 I I I I by I Peter J. Kuskie South East Archaeology
I 116 Strickland Crescent DEAKIN ACT 2600 1 I
I January 1994 I I I I ABSTRACT I South East Archaeology was commissioned by Cowman Stoddart Pty Ltd to undertake an archaeological survey of a proposed hard rock quarry at Lot 1, D.P. 221884, near Brogo 0fl I the New South Wales south coast. A preliminary study had been conducted by Mr John Hackwell (1993). in which no archaeological sites were located. The National Parks and Wildlife Service rejected Hackwell's report on the grounds it failed to meet the Service's mill im urn standards for archaeological reporting and insufficient consultation was undertaken I with the Bega Local Aboriginal Land Council. South East Archaeology was thereby requested to re-examine the proposed quarry site and prepare a report to the standard required by the National Parks and Wildlife Service. The investigation proceeded by recourse to the Aboriginal and environmental background of the district, followed by consultation with the Bega Local Aboriginal Land Council and a comprehensive field survey of the study area.
I No Aboriginal archaeological sites were located during the current survey. The primary recommendation is that there are no archaeological constraints to the development proposal. I I I I I I LI I 1 I I r] I TABLE OF CONTENTS
Page
Introduction
2. Environmental Context 2
3. Aboriginal Archaeological Context 5 3. I Previous Archaeological Research 5 3.2 Potential Site Types 6 3.3 Predictive Model of Site Location 7 3.4 Assessment ol Signi licance of Aboriginal Sites 7
4. Methods 9
5. Results And Discussion 10
6. Aboriginal Consultation 11
7. Reconiniendations 12
References 13
,L\cknovledgine11ts 13
Appendix 1: Aboriginal Consultation 14
FIGURES
Figure 1: Study Area Location 3
Figure 2: Study Area Plan 4 I 1. INTRODUCTION
Peter Kuskie. of South East Archaeology, was commissioned by Cowman Stoddart Pty Ltd in I December 1993 to conduct an archaeological survey of a five hectare area within Lot 1, D.P. 221884. Parish of Mumbulla, approximately seven kilometres north of Brogo and twenty kilomeires north of Bega on the New South Wales south coast. The study was completed in I Januaiy 1994.
The property owner, Mr Guy Lucas, is seeking development approval to establish a small- I scale hard rock quariy and processing plant. Extraction of up to 25 000 tonnes per annurn of crushed rock is proposed for a ten year period. A deposit of granodiorite overlays basalt and I both types of rock will be quarried and crushed, primarily for use in road construction. The study area had previously been investigated by Mr John Hackwell (1993). Hackwell did not locate any Aboriginal archaeological sites during his survey. The New South Wales I National Parks and Wildlife Service expressed substantial concerns with the nature and content of Hackwells (1993) report, in particular that it failed to meet the minimum standards of reporting required by the Service and that insufficient consultation was undertaken with the I Bega Local Aboriginal Land Council. It was within this context that the consultant was comniissioned to undertake the cuiTent study. I The general aims of the archaeological assessment are: to identify, record and assess the significance of any Aboriginal cultural heritage sites I within the study area. to consult with the local Aboriginal community to obtain their views on the possible effect I of the development upon Aboriginal cultural heritage sites. to make recommendations for the conservation and management of any Aboriginal sites I identified. The archaeological investigation was constrained to a degree by the generally low level of surface visibility within the study area. Low surface visibility restricts the ability to locate I certain types of archaeological sites. 1 I I I I I An /.rc}nic iogical I.nnc.ssnient ol a Propowd I lard Roek (uarrv at I nt I. i).ft22 I IX4. IIrogo, NSW. Peter .1. Kuskie, 1994. 2. ENVIRON11ENTAL CONTEXT
The study area is located at Lot I, D. P. 22 1884, in the Parish of Mumbulla. The centre of the I study area lies immediately north of the 'Lucas Vale' property at grid reference 752400:5954 100 on the Brogo 1:25 000 topographic map (figure 1). Mumbulla Mountain is situated 4km to the south-east. The Brogo River flows 500rn south of the study area. The I study area is bordered to the west by an un-named ephemeral stream which drains south into the Brogo River, to the south by a shallow gully on the edge of property currently used for pastoral purposes. to the east by a vehicle track and daiiy and to the north by the northern I slope of another gully. It measures approximately five hectares in size (figure 2).
The study area is located within the coastal hills and ranges landform system. To the east are I ranges associated with Mumbulla Mountain (elevation 774m Above-Sea-Level) and to the west are steep mountain ranges of the Great Dividing Range. The study area is located within a zone of lower elevation ridges, hills and drainage channels. Along one low ridge occurs a broad knoll on which the 'Lucas Vale' property is situated. On the northern side of this knoll I the study area encompasses part of the relatively level knoll and steep simple slopes connecting the knoll to the adjacent shallow gullies and more steeply dissected ephemeral stream (figure 2). Elevation varies between 70m ASL at the stream to 115 ASL on the knoll. I Slope varies between 0-5° on the upper part of the knoll to 1 5-20° across most of the simple slope.
I The underlying geological foimation consists of Bega Granite. Several geological drill samples have beeii obtained from the knoll and reveal the existence of granodiorite from surface level to a depth of 3-5m, overlying a deposit of basalt (Cowman Stoddart Ply Ltd I 1993). Numerous granodiorite blocks occur on the surface and larger boulders are present close to the creek. The soil cover is thin and the geomorphological regime typically erosive.
I The climate of the area can be described as meso-thermal, with uniformly distributed rainfall and a long mild summer (Kalma & McAlpine 1978). I Forests of the region previously consisted of diy sclerophyll communities, characterised by silver topped ash (Eucalyptus sieheri) or woolybutt (E. Long/fb/ia) in inland areas and spotted gum (E. macu/ala) in coastal areas (Hughes and Sullivan 1978:2). The culTent study area has [1 previously been cleared and much of the knoll and slopes are covered by acacia species, blackbermy and thin Eucalypt regrowth, Only one mature Eucalypt was observed. Portions of the study area are covered by pasture grasses.
LII Previous land-use has significantly affected the study area. The original vegetation has been removed and parts of the area have been subjected to cattle grazing. One fonned vehicle track traverses the study area and minor bulldozer scrapes and extraction pits (less than 80rn2) are I also present. A gold mine shaft dating from the 1930's (Guy Lucas pers. comm. 1994) exists in the shallow gully in the north-eastern portion of the study area, but has subsequently been I backfi I led. I I I An Archaeological Rca sses.srnent 0! a Proposed I lard Rock Quior 2 at l.t 1. l).P.22 1894, llrogo, NSW. Peter .1. Kuskic, 1994. 50' COBARGO 16km
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I I D 1 Figure 1: Study area location, Brogo 1:25 000 topographic map.
I An Archacoingica I Reassessment ni a Proposed I lard Rock Quarry 3 at Lot I. 1).P.22 I84, }3rogo. NSW. Peter J. Kuske, 1994. - ------
NORTH
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CADDEY SEARL AND JARMAN PLAN SHOWING CONSt.LTING SURVEYORS AND VALUERS CONTOURS & DETAIL 10 CANNING STREET BEGA NSW 2550 OVER PART OF PHONE: 064-922933 'LUCAS VALE' BROGO FAX: 064-922934 SURVEY REF: 22519 SCALE 1:1500 PABISft MUMBULLA DATUN A.H.D. DATE OF SURVEY 11/03/1993 SHIRE: BEGA VALLEY 1 1 3. ABORIGINAL ARCHAEOLOGICAL CONTEXT I 3.1 Previous Archaeological Research The study area has previously been investigated by Hackwell (1993). in an unpublished report to Cowman Stoddart Pty Ltd entitled A Preliminary Archaeological Survey of a Proposed I Hard Rock Quarry at llcLeod Hill, Via Bega, Soul/i Coast, New South Wales. Hackwe!l (1993) did not locate any archaeological sites during his survey. A search of the NPWS Site Register was apparently not conducted and few details were provided of survey methodology I or the archaeological and environmental background of the locality. Representatives of the Bega Local Aboriginal Land Council did not participate in the archaeological survey.
I The National Parks and Wildlife Service rejected Hackwell's (1993) report on the grounds it failed to meet the minimum standards required for reporting and insufficient consultation was H undertaken with the Bega Local Aboriginal Land Council. No Aboriginal archaeological sites are listed on the NPWS Site Register as being located within the current study area. However, a iiurnber of sites are located several kilometres to the east at Mumbulla Mountain and in Mumbulla State Forest and east of McLeods Hill. Several of these are small artefact scatters situated on ridgelines and often close to watercourses (NPWS no. 62-3-65. 62-3-66, 62-3-67, 62-6-13). The sites on Mumbulla Mountain include ceremonial sites and a stone arrangement (NPWS no. 62-6-6, 62-6-7, 62-6-8, 62-6-10). A U scarred tree (NPWS no. 62-6-1 17) is located further north near Quaarna.
A number of archaeological surveys have been conducted within the State Forests of the I region for the NSW Forestry Commission, as part of the Environmental Impact Study process. Hughes and Sullivan (1978) undertook a preliminaiy survey of the Five Forests immediately east of the current study area. Byrne (1983a) surveyed the Five Forests in greater detail, and I located thirty-nine sites at an average density of one site per 2.9km2. Byrne (1983b) also surveyed the Deua National Park and Wandella-Dampier State Forests (Byrne 1981). Byrne (1983 a) suggests the pattern of site distribution reflects the movement of sinail groups of people through the forests along ridgelines and that low to medium density artefact scatters could he expected to occur at intervals along ridgelines and creeks. I Mumbulla Mountain was investigated by Egloff(l979) and has subsequently been protected as Biamanga Aboriginal Place under the NSW National Parks and Wildlife Act, 1974. The mountain is of high significance to the local Aboriginal community at Wallaga Lake, as it was I a focus of male initiation ceremonies, which utilised a complex of sacred sites (Feary 1989). The last initiation ceremony took place around 1918. The mountain has strong contemporary significance to the local Aboriginal community (Egloff 1979). I The study area lies within the territory of the Djiringanj people (Tindale 1974). The coastal region in which the study area is located contains a variety of zones which would have been utilised by the Aboriginal occupants for subsistence resources. The most immediate potential I resource zone is the open forest. At a slightly further distance is the riverine zone of the Brogo River. which contained more abundant resources. Boot (1994 pers. comm.) has undertaken a wide-ranging study of ethnohistorical observations relating to the south coast region, based on I original archival sources. Boot (1994 per.s. comm.) lists the following faunal and floral species which have been observed in the ethnohistorical sources as having been utilised: fish species including bream, trumpeter, whiting, salmon and shark, eel, whales, seals, marine I worms, shellfish including oysters and mussels, possum, kangaroo, wombat, birds, goanna, grubs. honey, kangaroo apple, native cranberry, honeysuckle, pigface, macrozarnia, cabbage I An Archaeological Reassessment of a Proposed I lard Rock Quarry at Lot I. I ).P.22 I ti4, Brogo, NSW. Peter J. Kuskie, 1994. I tree, fruit and yams. Observations of use of these food sources were made within 10km of the coast (Boot 1994 pcI's. comm. ).
I The material culture of the local Aboriginal population would have included a range of items related to subsistence, cultural and social activities and shelter. Ethnohistorical observations along the coast have been made of the following items: huts, gunyahs, canoes, spears, shell- I barbed spears, fishing spears, bark/wood shields, waddy/clubs, spear throwers, boomerangs, hatchets. fish-traps, stone heat retainers, kangaroo teeth adornments, pierced nose adornments, bark drawings. possum skin cloaks, shell fish hooks and grass tree resin (Boot 1994 peiv. I comni.). In the archaeological record few of these items survive. Stone, bone and site]] are the materials most frequently represented in archaeological sites. H 3.2 Potential Site Types Several site types have the potential to occur within the study area. The following is a brief description of each potential site type and the factors affecting detection of these sites during I field inspection.
ARTEFACT SCATTERS: Artefact scatters (also known as 'Open Campsites') are a common I site type in the region. An artefact scatter is defined as two or more stone artefacts within one- hundred metres of' each other. An arteflict scatter may consist of surface material only or also contain a sub-surface deposit. Artefact scatters may represent the evidence of camp sites, I where eveiyday activities were carried out, or transitoly movement through the landscape. Detection of artefact scatters depends upon conditions of surface visibility and whether recent sediment deposition has occurred. These sites vaiy considerably in size, contents and I siwu f'icance.
BURIALS: Human remains tended to be placed in hollow trees, caves or sand deposits. I Usually burials are only identified when eroding out of sand dunes or creek banks, or when disturbed by developineiit. Aboriginal communities are strongly opposed to the disturbance of burial sites. The probability of detecting burials during fieldwork is extremely low. If skeletal I material becomes visible during construction, all work must cease immediately and the NPWS Regional Archaeologist and the Bega Local Aboriginal Land Council be notified,
ISOLATED ARTEFACT: An isolated artefact is an occwence of a single artefact further I than one-hundred metres from any other artefacts. It may represent a single discard of stone, or is the only visible evidence of an artefact scatter which cannot be detected because of low I surface visibility. MYTHOLOGICAL/TRADITIONAL SITES: Mythological sites, or sites of traditional significance to Aboriginal people, may occur in any location. Often natural landscape features I are the locations of mythological sites. Other sites of contemporary significance include massacre sites (the location of violent clashes between early settlers and local Aboriginals) and contact sites. Consultation with the local Aboriginal community is essential to establish I whether any mythological sites are located within the study area. Mumbulla Mountain to the south-east is an important mythological site associated with initiation ceremonies. I STONE ARRANGEMENTS: Stone arrangements include circles, mounds, lines or other patterns of stone arranged by Aboriginal people. Some were associated with bora grounds or ceremonial sites and others with mythological or sacred sites. Hill tops and ridge crests which I contain surface stone and outcrops are the most likely locations for stone arrangements. One is recorded on Mumbulla Mountain to the south-east of the study area. I An Archaeological Reasscsiincii I ofa Propocd I-lard Rock (,?uarrv I it Lot 1 . D.11.221894, I3rogo, NSW. Peter .1. Kuskie, 1994. I 3.3 Predictive Model of Site Location
A predictive model of site location is constructed to identify areas of high archaeological I sensitivity (i.e. locations where there is a high probability of an archaeological site occurring) so that further investigations can be concentrated in those areas. In terms of assessing the Aboriginal cultural heritage of the cluTent study area, the limited number of landform units can I all be adequately surveyed during the time available, reducing the need to construct a predictive model and define a sampling stategy.
I Landforni units are the primaly feature upon which the prediction of site occurrence is modelled. The general land systern is identified (e.g. coastal hills) and for each landfomi unit within that system (e.g. ridgeline knoll) a prediction is made about the probability of a site I occurring there. Field inspection further refines the model, taking into consideration factors such as surface visibility and ground disturbance. In certain circumstances, such as where low surface visibility or recent sediment deposition precludes effective assessment of the potential I archaeological resource. sub-surface testing may be a viable alternative for further refining the model. I lhe predictive model is based on information from the following sources: . identification of land systems and landform units previous archaeological surveys conducted within the vicinity of the study area and region I distribution of recorded sites and known site density . proximity of the study area to important site locational variables (e.g. flesh water, stone suitable for use in manufacturing artefacts or subsistence resource zones) I known importance of any parts of the study area to the local Aboriginal community
The study area is located on the knoll of a low ridgeline. Landforrn units within the study area include the knoll, simple slopes of valying steepness and shallow gullies. Based on the criteria listed above, the only landfoim unit of high archaeological sensitivity for artefact scatters is the level to gently sloping portion of the knoll. Artefact scatters and isolated artefacts are the site types with highest potential to occur.
Granodiorite was not a favoured material for manufacturing flaked stone tools because of its I coarse-gmained nature and poor fracturing qualities. Therefore it is considered unlikely a stone quarry would be located within the study area. Scarred or carved trees will not occur because of the absence of mature stands of vegetation. Considering the histoiy of land-use it is I unlikely stone arrangements would still survive within the study area. 3.4 Assessment of Significance of Aboriginal Sites
I The National Parks and Wildlife Service is responsible for the protection of Aboriginal relics on ally land within New South Wales. It is an offence under the NSW National Parkc and JFi/dlliti' Act, 1974 to knowingly destroy, deface or damage a relic or Aboriginal Place, without I the prior written permission of the Director of the NSW NPWS. The information contained ' within this report and the assessment of significance of archaeological sites provides the basis for the NSW National Parks and Wildlife Service to make informed management decisions regarding the degree of protection which should be afforded to specific sites. I The significance of archaeological sites can be assessed according to the following criteria: a) archaeological value I b) significance to Aboriginal people 7 A ii Arctiac logical Reassessment 01 a Proposed I lard Rock Quitrr at lot I. i).P.22 1 5114. l3rogo. NSW. Peter .1. Kuskie, 1994. I educational value historic value aesthetic value
Greater emphasis is generally placed on criteria (a) and (b) when assessing the significance of archaeological sites in Australia. I Archaeological value refers to the potential of the site to answer further research questions; the contents of the site; their state of preservation; and the repiesentativeness of the site type. I Representativeness is generally assessed at local, regional and national levels. It is an important criteria. because the pnmaiy goal of cultural resource management is to afford greatest protection to a representative sample of site types throughout a region. The more I unique or rare a site is, the greater its value as being representative of that particular site type in a region. I Aboriginal significance refers to the value placed upon a site by the local Aboriginal conununity. All archaeological sites have some contemporamy significance to Aboriginal people. because they represent an important tangible link to their past and to the landscape. Sites may he part of the living Aboriginal culture or be significant because of their connection I to spiritual beliefs or as a part of post-contact Aboriginal histomy. Consultation with representatives of the local Aboriginal communities is essential to establish the level of I Aboriginal significance. Educational value refers to the potential of the site as an educational resource for groups within the community. Historic value refers to the importance of the site as a location of an historic event, phase, figure or activity. Aesthetic value includes all aspects of sensoiy perception. This criteria is usually applied mainly to art or mythological sites.
I
I I H 1 I I AnArchieol<'gca I ReassessinciA ofti 'ropoed I lard Rock Quarry 8 ailot I. 1)1>22854, Rrogo, N.SW. Peter i Kuskie, 1994. I 4. METHODS
During the initial stages of the investigation, consultation was held with the NSW National Parks and Wildlife Service and a search of the Site Register was undertaken. Research into the environmental and archaeological background of the study area and consultation with I representatives of the Bega Local Aboriginal Land Council preceded the field survey. Fieldwork was undertaken over one day in late Januaty 1994 by the consultant and Ms Keiiy Aveiy, a representative of the Bega Local Aboriginal Land Council. Mr Guy Lucas, the I property owner and development proponent, accompanied the consultant on an inspection of the study area the previous day and during the fieldwork. I Most areas of visible ground surface were inspected for Aboriginal sites and closely aligned transects involving inspection on foot were made of all landform units within the study area. Most of the study area is comprised of landforin units which can be characterised as being of low archaeological sensitivity. Hence. the potential for sites to be located on these landform I units is low. Low surface visibility was characteristic of much of the study area. However, sufficient exposures were present in areas of disturbance caused by bulldozer scrapes, rabbit warrens and extraction pits to allow an effective archaeological assessment to be completed. I The survey coverage of the study area can be described as comprehensive. I I I I I I I I 1 I I An Archaeological Rca ssessrnent of a Proposed I lard Rock QuarrT 9 at lot I. D.P.22 1884, }rogo, NSW. Peter J. Kuskie. 1994. I 5. RESULTS AND DISCUSSION I No Aboriginal archaeological sites were located within the study area. Several explanations can he forwarded to account for the absence of evidence of Aboriginal I occupation: The majority of the study area is comprised of steep simple slopes and shallow gullies, which are landform units of low archaeological sensitivity and unlikely places for artefact I scatters to be located. Aboriginal usage of the study area was of a vely low intensity. The plausability of this explanation is enhanced by the location of more favourable landform units for camping I adjacent to the study area and closer to the Brogo River, 500m away, where subsistence and liver pebble resources would also have been more abundant.
I The histomy of and-use, including vegetation removal and grazing, may have impacted any possible sites, particularly more obtiusive site types such as scarred trees or stone I arrangements. (1) Low surface visibility obscured any evidence of Aboriginal occupation. While surface visibility overall was veiy low, patches of high visibility allowed an effective archaeological I assessment, particular of the landform unit of highest archaeological sensitivity, the knoll. The walls of shallow trenches from which rock had been extracted were examined. The soil cover LI is thin, minimising the potential for sub-surface archaeological deposits to exist. A combination of' factors (a) and (b) offers the most likely explanation for the absence of I evidence. I H I I I I I I An Arclntcol( glen I Reassessment ot 1 l'rpoaed I lard Rock Quarry IC it lot I. J)}) 22 lt91. l3rogo. NSW. PeterJ, Kuskie, 1994. 1 6. ABORIGINAL CONSULTATION
The study area lies within the boundaries of the Bega Local Aboriginal Land Council. Ms Kathy Jones. Co-ordinator of the Land Council, was contacted during the initial stages of the investigation to inform the Land Council of the project and to arrange for participation of a represenve during the field survey.
Subsequently the consultant met with the Bega Local Aboriginal Land Council representative. Ms Kelly Avery, who participated fbr the duration of the survey.
A letter of comment was requested from the Land Council to outline any concerns they may have with the proposed development based on cultural heritage matters (appendix 1). Ms Avery and Ms Jones stated the Land Council was satisfied with the survey and that no archaeological sites would be aflècted by the proposed development. A COPY of the cOlu1)lelcd report will he lbrwarded to the Bega Local Aboriginal Land Council.
Al Aie}iue )Ioglca menI I lard Reck Quarry ii I.i 1, I).1.22 I 554. llrogo, NSW. Paler 1. Kuskie. 1994. I
I 7. RECOMMENDATIONS I There are no archaeological constraints to development of the study area. Any previously unrecorded Aboriginal sites or relics detected during the course of development should be immediately reported to the NSW National Parks and Wildlife I Service Southeastem regional office and advice sought as to the appropriate course of action. The developer is reminded it is an offence to knowingly destroy, damage or deface an Aboriginal relic without the prior written permission of the Director of the I National Parks and Wildlife Service. I Iliree copies of this report should be fbrwarded to: NIs Marika Behr Regional Archaeologist I NSW NPWS Southeastern Region P0 Box 733 I Queanbeyan NSW 2620 4 A Single COpY ot this report should be forwarded to:
Ms Kathy Jones I Co-ordinator Bega Local Aboriginal Land Council 110 Box II I Bega NSW 2550 I I I I I I I I I An A rchacuIogca I Reas.sesnicnt ola hoposed I hi rd Rock Quarry 12 I ot I. l)P.22 14 I3rogo, NSW. Peter J. Kijakic1994. I
I RE F ER E C ES
Byrne. D. 1981 Waiidc f/a-I )ainpier Archaeological Surre. Unpublished report to NSW I Forestiy Commission.
Byrne, D. I 983a The lire lorests: an Archaeological aiicl Anthropological Inres(igalioii. LII NPWS:Sydney.
l3yrne. D. 1983b I/origiiial ic/es in 1)eita National Park. Unpublished report to NSW Li National Parks & Wildlife Service. I Cowman Stoddart Pty Ltd. 1993 Development Application notes. Eglof[ B. 1979 A itonhulla Alo,oitaiii - An Anthropological aiul Archaeological lnresligalion. 0cc. Paper No. 4. NPWS:Sydney.
I Feary, S. 1989 Aboriginal use of forests in South-Eastern Australia: Past and Present. In, K.J. Frawley and N.M. Seinple (eds) A us/ru/ia c Pier Changing Forests. I ADITA:Canberra. II ackwel I. \V .J. 1993 A Preliniinaiy Archaeological Saner of a proposed f-lard Rock larl:l a! McLeod f/ill. Via Bega, ioiitli ( oast New iiouth Wales. Unpublished report to Cowman Stoddart Pty Ltd.
Flughes, P.J. & Sullivan. M . E. 1978 A I'relinunary Archaeological Surrey of the Fire /'oresls, South (oast, New Soul/i Wa/es. Unpublished report to NSW NPWS.
Kalma. .1. D. & McAlpine. J. R. 1978 Climate. In. Lcind Use on the South ( oas1 of Ne't' i,ouili JVa/e.v I'o/unie 2; Bio-phv.vica/ Background Stitches. R.H. Gunn (ed)
Ii ndale.CSIRO:Melbourne. N. 1974 Aboriginal 1 ibes of/I its/ru/ta. ANU Canberra. I AC KNOW LEE)C EM ENTS
The consultant wishes to acknowledge the assistance of the following people: Peter Cowman, I Cowman Stoddart Pty Ltd; Guy Lucas, development proponent, 'Lucas Vale'; and Kathy I Jones and Keiiy Avery, Bega Local Aboriginal Land Council. I ri I I An Archaculugical Rciscssirieiit ul a Proposed I lard Rock at loll. I) P.22 IX4, llrogo. NSW, Peter .1. Kitskic. U
I PPENDIX I: ABORIGINAL CONSULTATION I I Bega Local Aboriginal Land Council Cm carp & Auckland Ss Ph. 064 923950 P.O. Box 11 Fax. 064 924087 I Bega 2550 I I I 31 January 1994
I Mr Peter Kuskie Consultant Archaeologist 116 Strickland Cres I DEAKIN ACT 2600 I RE: BROGO SURVEY I Dear Sir I, Kathy Jones, Coordinator of the Bega Local Aboriginal Land Council, have acknowledged that Kerry Avery, member I of the Council, has attended an archaeology survey with yourself, on the 31/1/94. I Yours sincerely I /{ I Kathy Jones Coordinator I I
I An A rchneological Reiisscsiiriicnl ci ii Prcposcd I lard Rock Quariy 4 I at J.ol 1. 1)11 22 t14. Rrngo. NSW. keter 1. Kuakie. 1994. I I SUPPLEMENT TO THE NOISE IMPACT ASSESSMENT C REPORT - PROPOSED McLEOD HILL HARD ROCK QUARRY I AT 'LUCAS VALE', OFF PRINCES HIGHWAY, F3ROGO I I I
Prepared for Cowman Stoddart Ply Limited
for submission to: Bega Valley Council Environment Protection Authority Department of Planning
Prepared by R T Benbow DICK BENBOW & ASSOCIATES PTY LIMITED I • Report No. EE 1783 CS/N-McH Supplement • February 1994 I I
Dick Benbow & Associates Pty Limited ACN: 002 554 761 Unit 4, 5-9 Hunter Street I Parramatta NSW 2150 Tel: (02) 635-5099 U Fax: (02) 689-1385 I
H I ('h A)Ins Ply. Hd
I I I I CONTENTS PAGE I I I 1.0 INTRODUCTION 1 2.0 ADDITIONAL EXISTING COMMUNITY NOISE LEVELS ...... 2
I 3.0 PREDICTED NOISE LEVELS AT LOCATION F ...... 4
4.0 NOISE REDUCTION MEASURES ...... 6 I 4.1 Berm Design ...... 8 I I I I I I I I I I L 1nInvi & /\ ;:ciatS Ply. I_Id, I 1.0 INTRODUCTION
I
The details in this Supplement to the Noise Impact Assessment Report for the I Proposed Hard Rock Quarry at McLeod Hill, Brogo are provided in response to the requests for additional specific information relating to noise.
The requests for the specific information is outlined in the correspondence from I Cowman Stoddart - refer to Attachment 1.
To finalise the supplementary report it has been necessary to revisit the site and conduct community noise measurements at a proposed residential site - Location F on Diagram 1. A surveyor has measured the separation distance from the proposed residential site to the quarry to be 800 metres. The measurement point in the quarry being the position of the highest benches where the mobile equipment could be expected to be in the most exposed position and in the centre of the extraction area.
The results of the community noise measurements are presented in the following I section of the report. I I I I I I I
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bow & AocaIes P'y. Ltd. I __ ______
2.0 ADDITIONAL EXISTING COMMUNITY NOISE LEVELS I The additional existing community noise levels were measured on 31 January, 1994 at the location marked F on Diagram 1
The measurements were conducted using a Bruel & Kjaer Statistical Level Analyser I Type 4426. This instrument was fitted with a 12.5 mm diameter microphone and a wind sock. The instrument was calibrated before and alter the measurement periods using a Bruel & Kjaer type 4230 calibrator. Measurement periods of 12-15 minutes I were used. Weather conditions during the morning period were satislactory. A slight northerly breeze existed in the morning. I During the afternoon wind speeds increased to 5-10 km/hour and with gusts of 15- 20 km/hour. The alternoon measurements are presented but are not used in I determining the background LA90 level for the proposed residential site. I
TABLE 1 1 STATISTICAL NOISE ANALYSES dB(A)
Date of Measurement : 31 January 1994 I Location F I Location Time LA9O LA10 LA1 LA5O LAeq
Adjacent to existing 11.30 am 43.3 50.8 60.3 45.5 51 I sheds on site nearer to river. I 11.55 am 36.8 42.3 46.8 39.3 40.1 Cleared site for future 12.18 pni 36.5 41.3 46.3 38.8 39.6 I residence. 3.10 pm 42.3 48.8 53.5 44.8 46 I 3.35 pm 42 50.3 55 1 44.3 47.1 I I I KA
1 I I I A, FIll, 'Iv I III I
Coriirrierits: 'The two measurement results at 1 1 .55 am and 12.18 pm are used to establish the acoustic design objective for the noise emissions from the proposed quarry. The acoustic design objective is determined from the I EPA Acoustic Criteria described in detail in Section 2 of the Main fleport EE 1783 CS/N-McH.
I The noise sources contributing to the LA90 level during those measurement periods were traffic movement on the Princes Highway - audible for short time periods only, insects, birds, breeze rustling foliage, I farm irrigation water pumps.
Ehe measured LA9Q levels are typical of a rural area. The acoustic design objective for this location is determined by adding 5 dB(A) to the minimum measured LA90level which results in a design objective of 41.5 dB(A). This design objective is significantly higher than the objective used in the rimin report when I applied a miiimiiriiumn L A90 level of 30 dB(A).
The acoustic design objective for this future residence is similar to that applied to Locations B, C and D.
I I I I I
I I
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I
3.0 PREDICTED NOISE LEVELS AT LOCATION F
I flie main report predicted noise levels at this location based on a separation distance of 700 in to the crushing plant and 600-700 m to mobile equipment working at the I extraction area.
These separation distances were based on a 1:25000 CMA map. The surveyed distance is far riiore accurate and increases the separation distances by at least 100 m. The dairy used by the surveyors is the approximate centre of the extraction 1 area. The closest point of the crushing plant area is 90 metres further distant from Location F. This would place the closest point of the crushing plant at 890 metres I from Location F.
1 he additional separation distance of 190 metres would reduce the predicted noise levels by a marginal amount 1-1 .5 dB(A). I The predicted noise levels presented in the main report were based on the worst case scenariowith mobile equipment working on the southern slopes of the extraction area. The increased separation distance provided as a result of more accurate measurement of the separation distance also applies to the mobile equipment and a further reduction in noise level of 1-1.3 dB(A) at Location F may be expected.
The operation of the drill rig in an unshielded location would exceed the new acoustic I design objective by up to 5 dB(A) and as recommended previously, a berm is required along the southern perimeter of the quarry. The berm would be formed into a "dog leg" along part of the eastern boundary of the quarry. The berm will provide a useful I safeguard measure for reducing noise emissions to below the acoustic design objectives.
I In summary, for Location F:
I Mobile equipment operating north of the centre of the quarry;
Acoustic design objective 41.5 dB(A) I Mobile equipment noise levels < 22 dB(A) Crushing plant noise levels < 29 dB(A) Drill rig noise levels 35 dB(A) I Combined noise level with drill rig operating 36 dB(A) I - I I
Mobile equipment operating at closest to southern boundary of quarry;
Acoustic design objective 41.5 dB(A) I Mobile equipment noise levels 35-37 dB(A) Crushing plant noise level < 29 dB(A) Drill rig noise levels 35 dB(A) I Combined noise level 38.5-39.5 dB(A)
The berm on the southern boundary is mainly required to protect the acoustic amenity of residences to the south-west of the quarry and has been designed for Locations E andF. I I I I I , I I I I I
I AcCitPS Pty I 4.0 NOISE REDUCTION MEASURES I I The following noise reduction measures are recommended for the quarry.
1. U Berms of 3 m height would be formed from overburden and quarried materials, then grassed and vegetated. There are three berrns and these are shown on I Diagram 2.
Equipment - Mobile equipment would be fitted with environmental grade mufflers such that tonal noise is not emitted fronii the equipment.
Engine canopies as fitted to the equipment would be left in place and the equipmentwould be operated with any noise control device fitted to the rn a clii n e r y.
The noise emission levels of plant and equipment specified in the main report would be monitored (luring compliance tests. I The crushing plant would be located in a gully such that significant acoustic shielding is provided by natural topography and the placement of berms will I increase the degree of shielding that is obtained.
The drill rig would be fitted with exhaust silencers on the air compressor and drilling hammer device.
The extractive faces will be operated on the southern half of the quarry such that the end of each face contains overburden and rock, and there is no breakthrough of the face and berm which would result in line-of-sight to locations E and F.
The use of a rock breaker would be limited to the most shielded area of the quarry. I I /\,r(l1!i' Fly I I Product truck movements would use 'drive neiglibourly" techniques and a procedure would be prepared to implement these techniques which are outlined I in Section 3.2 of the main report.
Noise Monitoring Programme - 11 A noise compliance audit of the quarry would be implemented within 3 morìths of the commencement of operations. The audit will include the following I steps: Measurement of equipment noise levels at 7 m distance. If a hydraulic H rock breaker is required, the operation of this machine would also be monitored. H Measurement of residential noise levels at locations A-G, shown on Diagram 1. The measurements would be conducted over 1 5-20 minute periods when the quarry is known to be operating. The compliance audit I will be conducted to the requirements of the EPA.
Community consultation with residents would be conducted during the I audit. The consultation programme is considered to be an important part of the programme.
I The quarry management are also expected to undertake regular consultation with residents during the operation of the quarry. This I aspect is critical during the first few months of operation.
10. Blast Monitoring Programme I The first three blasts at the quarry would be monitored. These blasts would be for production purposes and not development blasting (i.e. to develop the I working faces several small scale blasts may be necessary). The measurement of ground vibration and overpressure (air blast) would take I place at the following locations on Diagram 1 I FBlast No Ground Vibration Overpressure I 1 A,F A,C,F 2 A,H A,H,F H 3 A,F A,D,G I 7 I lrI))W ' A;IntE; Pty lid Further annual compliance audits of a production blast would occur. If the level of U overpressure or ground vibration is found to exceed tile EPA criteria, it would be necessary to monitor each blast at the nearest affected residence.
The quarry manager and shot firer will maintain blast records in accordance with requirements of the Mines Inspection Branch of the E)epartment of Mineral flesources. I
Prior to the blast being detonated and preferably at least 1 hour beforehand, those residential neighbours who have indicated they wish to be notified, will be contacted by telephone. I
Preference would be given to standardising on a set time for the blast, e.g. 2.00 or U 3.00 pm. I I 4.1 Berm Desg
The location of the berrns is shown on Diagram 2. The minimum height of each berm I would be 3 m measured at the centre of the berm. The width of the berm would be determined by the angle of repose of the material used and the natural slope of the batter which results, e.g. 2-2.5:1. I
The berms would be grassed and vegetated to stabilise the surface from erosion and I provide visual shielding of the quarry operations.
An inspection of the berm position and construction and inclusion in the noise compliance audit would ensure that the berm design and placement has met the I requirements.
I This concludes the report. I
R T Benbow I Princinal Consultant
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ATTACHMENTS I I I I I I I I I I
I Fii)()' Ily. lid. COWMAN STODDART PTY. LTD. k. ACN 057 616 896 I ., Town Planning and Environmental Consultants THE HOLT CENTRE 31 KINGHORN STREET I NOWRA NSW Postal: P0 BOX 738 fj NOWRA NSW 2541 I Telephone (044) 21-4553 Facsimile (044) 23-1 569
H Dick Benbow & Associates Pty. Ltd., P.O. Box 687, I PARRAMATTA NSW 2124. 16th. December 1993. ATTENTION: Mr. R.T. Benbow. I Dear Dick, Re: Lucas Quarry I ------
The Department of Planning and Bega Valley Council have I requested more detail on noise etc. in regard to the quarry as follows: I Department of Planning "It is suggested that the applicant clearly define the noise reduction measures to protect the amenity of any residence closer I than 1,000 m and nominate the monitoring of noise and vibration that would be carried out. Mitigation means at nearest I residences should also be outlined." Council
H rvNoise Mitigatior1 Measures - location and design of berms (height, width and cross sections). Details on the staging and landscaping of berms. I Noise Monitoring - noise levels should be taken at site "F" as the E.P.A. has suggested." I Would you be able to undertake the work during early - mid January if possible. Incidentally the surveyors have measured the distance from the proposed residence Site F to the quarry as I 800 in. H Regards, I I Peter Cowman. H DIAGRAM 1
50' I COBARGO 16km NAROC 54 I 51 S2 53 / T I / I/f 1/ Ii Rt I/ I F 02 kx I 21 J9J, I I I I 1 I I I I I I I I
I LDC2LI'I'Y 42P FIG 2.1 Cowman Stodclart pty. Ltd. r' t a IL - I? jr c1ELxrI b Cc,tIlsL I. I CANt! S - Orp Q-L:t :i:- :t:- r i-t - I scale 1:25,000
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CADDE SEARL AND JARMAN PLAN SHOWING ' CONTOUPE & DETAIL OVEP PART OF :-223 LUCAS VALE PCGO x. 22E9 PflISft 4LEULJ- T'J - - ------The General Manager Bega Valley Shire council P.O. Box 492 BEGA NSW 2550 Our Ref: CJB:FK Your Ref: 93.1239 dj:jn
18 March, 1994
Attention:— D. Jones Development Control Planner
Dear Sir/Madam
RE-ADVERTISED fRevised Environmental Impçt Statementi
RE: DEVELOPMENT APPLICATION NO. 93.1239 - DESIGNATED DEVELOPMENT - Extractive Industry to produce process and market up to 25,000 tonnes per annum of crushed rock (Granodiorite and Basalt) over a 10 year period - 'Lucas Vale' Brogo, Lot 1 DP 221884, Prices Highway, Brogo, Parish of Mumbulla
I refer to your letter of 14th instant accompanied by a Supplementary Report for the above Application.
The following comments are in addition to those advised in my letter of 25 August, 1993.
Blast Monitoring Programme
This is outlined as item 10 in Section 4.0 (NOISE REDUCTION MEASURES) of Appendix C in the Supplementary Report.
The monitoring locations for the first three production blasts are a minor amendment from my monitoring requirements set out in my letter of 25 August, 1993 but as at least two sites will be monitored simultaneously, the Programme is acceptable.
To ensure all persons residing in the vicinity are aware that a blast is imminent, a warning siren shall be used (Section 7 of Australian Standard 2187.2 - 1993).
Yours faithfully
C. J. BROPHY Regional Inspector of Mines Wagga Wagga Wega Valley Council
COUNCIL CHAMBERS ZINGEL PLACE BEGA Telephone: (064) 929400 DX 4904 Bega Fax (064) 923323
All Communications to be Your Reference: 93.1239 DJ:jn In reply please quote: addressed to: The General Manager Mrs J Nolte P0 Box 492 Bega 2550 If telephoning ask for:
14 March 1994
Department of Mineral Resources P0 Box 30 WAGGA WAGGA NSW 2650
Attantion: Chris Brophy
Dear Sir/Madam
RE-ADVERTISED (Revised Environmental 1qpact Statement)
- - DESIGNATED DEVELOPMENT RE: DEVELOPMENT APPLICATION NO. 93.1239 Extractive Industry to produce process and market up to 25,000 tonnes per annum of
- - Brogo, crushed rock (Granodiorite and Basalt) over a 10 year period 'Lucas Vale' Lot 1, DP 221884, Princes Highway, Brogo, Parish of Mumbulla
APPLICANT: Cowman Stoddart Pty Ltd
CONSENT AUTIIORITY: Bega Valley Council
Please find enclosed a copy of the abovementioned Development Application together with the Environmental Impact Statement. Council has made arrangements in accordance with the Environmental Planning and Assessment Act, 1979 to publicly exhibit the proposal (a copy of the advertisement is attached).
Council would appreciate any comments you may have in respect of the subject proposal within 28 days and your assistance in meeting this time frame will be appreciated.
For any further information regarding the matter please direct all enquiries to Mrs J Nolte of Council's Building & Planning Services.
Yours faithfully
D JONES DEVELOPMENT CONTROL PLANN1R For: D G Jesson, General Manager
Z~ Home of the Sapphire Coast BECA VALLEY SHIRE COUNCIL - I REGISTERED DEVELOPMENT APPLICATION I No. ENVIRONMENTAL PLANNING AND ASSESSMENT ACT, 1979, SECTION 77 (3)
Date Received 2 3 / 7 /19 Bega Valley Shire Council, Assessed Fee $ P.O. Box 492, / 7 Bega, N.S.W. 2550 Advertising Fee $ Telephone: (064) 92 9441 Date .. . ./.. .7 ...I. Receipt No. All questions must be answered us1ig black Ink /19 FORM TO BE COMPLETED IN FULL Acknowledged /
A I hereby apply for development consent to development described below Name...... -X...... P.€., . carry out ie Full Postal Address: ...... C Postcode Signature of applicant or persoing on behalf of applicant. Where not signed by applicant state Telephone: Area .... Home ...... Work capacity in which application is signed. 1 I, being the owner of the land to which this application relates, hereby consent to the Name: ...... ...... making of this application. W Full Postal Address...... g.. t.Q_i-...(e_ ...... N ...... postcode: c.-7 E -.'' Sigr7ayure of orfr or person acting for or on behalt R Wh( not signed by owner state capacity Telephone: Area .. Home Work ...... of ôner. i hich consent is signed.
+t/Locality...... Street/Road ...... (A) Section No. ...... LLotNo ...... / D A ...... Area- ...... sq. metres/hectares p4 Portion No...... . . ------ Parish D The applicant should place a notice on the subject land to aid investigating officers.
Description of development or other activity for which development consent is sought: '.- .. (B)
Where development involves the erection of a building, the proposed use of that building when erected: ...... L 0 Description of all existing development or other activity for which the land is utilised: E P N -...... T ,, / - vc 1.t. Plans will be required - see overleaf.
(C) c Estimated cost of the proposed development (where it involves the erection of a building or the carrying Out of work). $ -....:...... ------......
(0) Environmental Impact of the proposed development. 1 The application shall be accompanied by: p * (a) an environmental impact statement (in the case of designated development) A or • (b) a — T * Whichever is applicable. - DEVELOPMENT PROPOSAL - DESIGNATED DEVELOPMENT
RE-ADVERTISED (REVISED ENVIRONMENTAL IMPACT STATEMFNT)
Notice is given that Council is in receipt of a Development Application proposing to develop land in the following manner:
DA NO: 93.1239 DESCRIPTION OF PROPOSAL: Extractive Industry to produce process and market up to 25,000 tonnes per annum of crushed rock (Granodiorite and Basalt) over a 10 year period. DESCRIPTION OF LAND: 'Lucas Vale' - Brogo, Lot 1, DP 221884, Princes Highway, Brogo, Parish of Mumbulla. APPLICANT: Cowman Stoddart Pty Ltd CONSENT AUTHORITY: Bega Valley Council
The subject Development Application and accompanying Environmental Impact Statement is on display from 16th March, 1994 to 27th April, 1994 and may be inspected at the following Locations:
BEGA VALLEY COUNCIL OFFICES Building & Planning Services Zingel Place BEGA
Department of Planning Head Office 175 Liverpool Street SYDNEY
These offices are open Monday to Friday between the hours of 8.30am - 4.30pm.
Any person may, before the closing date (27 April, 1994), make a submission in writing to Council in relation to the development proposal. Wheie the submission is made by way of objection, the grounds of objection are required to be specified in the submission.
Any person who makes a submission by way of objection and who is dissatisfied with the determination of the Council to grant consent to the development application may appeal to the Land and Environment Court in accordance with Section 98 of the Environmental Planning and Assessment Act, 1979.
Any person who made a previous submission may also make a submission in writing before the closing date.