GROUNDWATER GEOCHEMISTRY RESEARCH

ALLIANCE GOLDMINES N.L. CRESWICK - CLUNES PROJECT

GROUNDWATER GEOCHEMISTRY RESEARCH

REPORT ON INITIAL GROUNDWATER SAMPLING

Peter Dahlhaus and Kim Dowling University of Ballarat

Date: 6th November 1996

1. INTRODUCTION This research project was initiated through a proposal by Dr Martin Hughes, Consultant Geologist, to Alliance Gold Mines N.L. (1/2/'96) to use hydrogeochemical sampling as an exploration tool on the Creswick - Clunes Project.

Following discussions with the Geology staff at the University, it was proposed to involve final year students to test the technical feasibility of the hydrogeochemical technique. The final year project reports by Ms Caroline Wishart and Mr Cameron Parker are currently being prepared.

The sampling program was carried out during early September 1996. Alliance Gold Mines N.L. contributed to the cost of necessary equipment, bore access charges, the analyses, and part of the project supervision. The remainder of the costs have been met by the University's commitment to student projects.

This report has been prepared by the Geology department staff who supervised the student work. The report details the procedural technique, the results obtained, and makes recommendations for further work to develop the exploration potential.

2. INITIAL SAMPLING PROGRAM

2.1 Bore selection Government Observation Bores were chosen for the initial trial program for the following reasons: 1. ease of access (public road reserves), 2. complete initial sampling program by the September 30th deadline, 3. provide a range of values, since the bores intersect a variety of aquifer materials, 4. provide information on "background" values, and 5. these bores have the most information available on the geology, construction, etc.

Thirteen Government Observation Bores were available for sampling (Table 1 ).

2.1.1 Limitations of the bores In the selection of the bores the following limitations were recognised: • The average standing water levels in two of the bores (46489 Ascot- 47m; 91875

Spring Hill- 63m) is well below the limit of the pumping equipment, and just at the limit of the pumping equipment in three of the bores (Ascot 46488- 26m; Ascot 119342- 28m; Spring Hill91876- 26m). This not only imposes a limit on data collection, but creates a bias in sampling.

• Two bores (57539 Creswick; 64880 Glendaurel) are not cased (ie. open hole) and could snag the pumping equipment and contaminate the sample with particulate matter.

• While twelve ofthe bores penetrate through the basalt cover, only one (121019 Ercildoun) is screened in the aquifer beneath the basalt. The remaining bores are either screened in the basalt or open hole, with little likelihood of a geochemical anomaly in arsenic or gold.

04-Mar-96 SKM verSion 12-Jun-96 UoB version

University of Ballarat Geology

Creswick 1 :1 00 00 shee

list Bore No. Parish Old No

66 46488 ASCOT 45 67 46489 ASCOT 46

205 119342 ASCOT 15006 833 55414 CLUNES 65

1196 57539 CRESWICK 164 1505 121019 ERCILOOUN 15006 1530 64879 GLENOARUEL 10 1531 64880 GLENOARUEL 11 2506 91875 SPRING HILL 165 2507 91876 SPRING HILL 166 2628 116382 SPRING HILL 15006 2669 119377 TOURELLO 15006 2670 122151 TOURELLO 15006 2671 122152 TOURELLO 15006

AMG Zone Easting Northing Surface Date Total Shee Level Orillecj OeJ>!Il

762323 54 747000 5857100 414.61 18-Mar-87 130.50 762323 54 746750 5851950 435.27 05-May-87 150.00 762323 54 747010 5857030 415.71 24-Nov-93 87.00 762324 54 749200 5868450 313.00 04-0ec-83 124.43 762323 54 753850 5857300 421.89 22/05/1981 70.00 762333 54 729230 5853780 396.12 21/03/199-4 84.00 162324 54 744900 5859950 393.98 19/02/198€ 84.00 762323 54 744500 5858150 412.12 04-Feb-87 121.04 762321 54 759150 5861200 477.81 22/06/1987 90.50 762321 54 755450 5862200 412.68 23/07/1987 87.00 762322 54 762550 5856200 551.00 19/10/199l 95.00 762324 54 747540 5860200 380.00 03-SeP:_94 68.50 762324 54 747500 5860210 380.00 08-Jan-94 72.00 762324 54 747130 5861920 370.00 08-Feb-94 67.5

Table 1. Summary of Government Observation Bores (from Alliance Gold Mines N.L. Database)

Relative Level of base of Relative the basalt Level of

Basal Thru Topo Base including the Thickness Basal basemen Roc~ outcrop basement

UN I< 104 'r 148 ORO 331.27 287.27 83 'r SNO 332.71 66 't CLY 247.00 36 _y 62.5 ORO 385.89 359.39 42 y 78 GRN 354.12 318.12 67 y 74 ORO 326.982 319.982

101.8 y 118.8 ORO 310.32 293.32 83 y 83 ORO 394.81 67 y CLY 345.68 90 y SNO 461.00

68.5 N BAS 66 y ORO 314.00 380.00 66 y OR[ 304 370

2.2 Equipment The following equipment was used in the sampling program: • Electric generator: Honda model E 1500; 240 volt; 1.25 kva • Groundwater sampling pump: Grundfos model :MP1, variable speed, stainless steel,

submersible; 50mm diameter, teflon hose. • pH probe: Amagruss model P-PHAA121K10MBN; sin 04112; • Loop powered transmitter: Amalgamated Instrument Co. model RT4-PH;

s/n 24095-025 • Eh probe: Amagruss model P-ORAA1210MBN; sin 05867; • Loop powered transmitter: Amalgamated Instrument Co. model RT4-0R;

sin 24095-045 • Conductivity meter: Orion Model115; s/n 001269 • Conductivity probe: Orion Model 011050; epoxy, platinum, platinized • Turbidimeter: ICM model 11520; sin 96081493 • Filter Apparatus: Geotech, In-line, Acrylic, 142mm • filter paper, 142mm, acetate • In-line monitoring box, perspex • glass thermometer: Brannan; -10°C- 110°C • glass thermometer: Zeal; -10 o C - 110 o C • Groundwater level measuring tape, electronic, 0-30 metres • One litre sampling bottles, nalgene • nitric acid, Aristar analytical grade* • glass pipette, wash bottle, digital stopwatch, ten litre plastic bucket, plastic hose,

extension lead, earth leakage safety switch, garden hose and fittings.

2.2.1 Limitations of the equipment

The following limitations were recognised with the equipment: • The pumping equipment was limited to approximately 30m pumping depth

(limitation with the hose and cable length, not the pump capacity). • The filter apparatus was borrowed (from Golder Associates) and was available for a

short time only. • The operation and calibration of the pH, Eh, EC and Turbidity measuring devices

was initially unfamiliar.

• the maximum limit of impurities is given in Appendix 5.1

2.3 Sampling Procedure The following standard procedure was used during sampling: 1. At least three bore volumes (calculated from the screen to the standing water level)

were pumped before the sampling began. 2. During the pumping, the pH, Eh and EC were monitored every 15 minutes through

an in-line system to ensure that steady conditions were reached before sampling commenced.

3. Three separate samples were taken per bore, viz. unfiltered, unacidified sample for major ion analysis; unfiltered, acidified for trace element analysis; and filtered, acidified for trace element analysis.

4. To observe QA/QC protocol, care was taken with cleanliness during sampling, bottles were filled to exclude air, bottle labels did not disclose sample treatment, and two field sampled blanks and two duplicate samples were included.

5. Sample bottles were prepared for low-level analysis using the procedure outlined in Appendix 5. 1.

6. The pH, Eh, EC, temperature and turbidity were recorded at the time of sampling. 7. Samples were refrigerated and then transported by courier to the analytical

laboratory in a polystyrene box.

3. RESULTS AND DISCUSSION

3.1 Sampling program Six bores were sampled over a two week period (Table 2). Each bore required several hours of pumping (2~ to 4 hours) before sampling, consequently only one bore per day was sampled.

!JoreNo •. . ~tt~ > ·.·•·· · Estinulted ... Actllal •.... §anrple .. Comment sWLtmJ i· mflnJ .·•· ·Daie ............ ·.·

46488 Ascot 26 46489 Ascot 47 Too deep for pump 119342 Ascot 28 S5414 Clones +4 Artesian 57539 Creswick 4 3.29 13/9/96 pumped 2. 75 brs Open bole 121019 Ercildoun 6 7.4 pumped dry 5/9~ 6/9~ 9/9~

10/9 64879 Glendaurel 4 4.33 10/9/96 pumped 4 brs 64880 Glendaurel 15 15.05 9/9/96 pumped 3. 75 brs Open bole 91875 Spring Hill 63 Too deep for pump 91876 Spring Hill 26 116382 Sprine Hill 6 6.2 3/9/96 pumped 2.5 brs 119377 Tourello 8 6.92 5/9/96 pumped 2.25 brs 122151 Tourello 20 25.14 6/9/96 pumped 3.5 brs

Table 2. Summary of bore sampling.

The sampling program was intended to include Bores 1210 19 Ercildoun, 5 5414 Clunes, 46488 Ascot and 91876 Spring Hill, but the unexpected urgent recall ofthe filter equipment cut short the program.

3.1.1 Sampling problems

The following problems were encountered during sampling: • Some hose "click fittings" were suspected of sucking air into the sample and were

replaced with more secure fittings. • A modification to the sampling line is needed to allow the sample to be drawn off

before the in-line monitoring box. • The in-line monitoring box needs some modification to allow air to be bled from the

system. • The values for pH, Eh and EC were not recorded during the pumping of the first

bore sampled (116382 Spring Hill). • The calibration of the probes needs to be checked daily. • Each bore took several hours of pumping to obtain a representative sample. • Pumping rates had to be manipulated to match the bore recovery, so that the water

level would not be drawndown below pumping level.

3.2 Hydrogeochemistry comments The major ion analyses and dissolved metal analyses are listed in Tables 3 and 4. The results reveal: I. Duplicate samples show an acceptable quality in the sampling method. 2. Blank samples indicate contamination of Barium, Chromium, Copper, Manganese,

and Zinc. The level of contamination is as high as the values recorded in the groundwater samples. The source of the contamination may be the filter apparatus, the filter paper, the de-mineralised water, the acid, the bottles, or the plastic hose.

3. There is negligible difference between filtered and unfiltered samples. 4. There is a major discrepancy between the field pH (5.8) and laboratory pH (7.l)for

sample 1-57539. This is attributed to the pH probe loosing calibration for this sample.

5. The sample with highest pH (1-119377) has a laboratory pH (8.4) lower than the field pH (9.25). This may be due to selection ofbuffers for probe calibration.

6. The major ions show the waters to be of different origins. 7. Iron (Fe) should have been included in the analysis because of its relationship to

arsenic, its sensitivity to filtering and its level of concentration in groundwater of the region.

Interpretation of the hydrogeochemical analyses will be provided with the students' reports. These will be available by early December.

Bore No. 57539 64879 64880 116382 119377 122152 ··········································-s;;;;,···i;·!"d······-···-······-··--·········- -w.;s-39-· ··-···i::ii"4879···-·r·····i-A::64s7·9···-· ····i::;;·4ssa··· ····i-~1163-s·i"··· ···1:"i"i.93:;:;··· ···i·~·i22·i·s·:z···· ooooooooooooooooooooooooooooooooooooooooooooooooo'.P.ooooooooooo-ooooooooooooooooo-oooooooooooo •••-•••••••••••••••••••• oooooooooooooooooooooooo••• ooooooooooooooooooo• ••ooooooooooooooooooooo oooooooooooooooooooooo oooooooooooooooooooooo

Sample Date 13/9/96 10/9/96 9/9/96 3/9/96 5/9/96 6/9/96 Lab No. E06973 E06974 E06979 E06977 E06976 E06975 E06978

Duplicate

····-·······-·····-·..1.!!.~'Y..~~---···-···--····-· ..... -EQf ___ l----t-···--······-·····-·· ··················-···-·· ·················- ··················-·· ........................................... . WA TI Standard ···············--····--··-····-············-----·· ···-····--~·-+..,.--~·- ·························· ·················-········ ........ , .................. , ....... .,. ........................... ······················

Cations in mi!IL

Potassium asK 0.1 0.34 2.4 2.5 3.0 6.9 5.1 3.7 Cations in me/L ----:: ~~~-..;;;_---+------+----·1-·---· ··--······--·-- ·····-·-····--· ······---·- ·····-·······-·-··· .. --·······-... Calcium as Ca 0.001 0.17 0.85 0.76 1.2 1.9 0.62 1.2 ..... ···-------- --·-···- ---·····-- ...................... ···-·····-·-···

Magnesium as Mg 0.001 0.65 2.5 2.4 2.0 2.7 0.36 2.3 Sodium as Na · 0.001 6.5 2.7 2.6 6.0 1.8 4.0 4.0

Potassium asK 0.001 0.009 0.061 0.064 0.077 0.18 0.13 0.09 -----·--· --·- ·---- ·---··--··--· ·--··-·· Aniotu in mg/L Hydroxide as OH 0.1 nd nd nd nd nd nd nd Carbonate as C0J 0.1 nd nd nd nd nd nd nd

••-•••-·--·---·-••• ---• ·-u•••-•••••••••••••• ••••-•••••••••••••••-•-• •••••••••••n••••••• ,.,....,..,,.,.,.,.,.,....,,.,..., ...... ••••••••••••-•••••••• ••••••••••••••-••••••

Bi-Carbonate as HC0J 0.1 131 180 183 202 229 146 240 ·····-··---·---··---·· 0 -- --···-·······-··· ··············-·--···· ··············-··· ···-····-···-····· •••••••••••••••••••••• ······-··············

Sulphate as S04 0.1 32.3 2.3 2.4 6.9 nd 12.2 3.0 Chloride as Cl 0.1 134 128 78.0 188 81.3 75.0 98.0 Nitrate as N0J 0.1 0.15 16.4 15.9 5.2 0.65 4..5 2.3

•••••••-------.. -·------- -----· --- eu ........ _.._,.,._ ... ,. ....... ,. .. ,.,.,.,. ... ,..,_..,.,..,..,..._.,.,.,., ••••••••••n••••h• .,.,...,.,., ... - ... - ...... •h •••••••h••••••••••••• ••••••••••n••••••••••

Anions in me/L ···--·-·-·-·-·-···--- -·-·----~-----1·--·-···-···- ···--····-····---· ··········-·····- ·-··--·······-·· ·····-·············· ···············--·· Hydroxide as OH nd nd nd nd nd nd Carbonate as C0J nd nd nd nd nd nd

· ..... ·.·.·.·· ... •" .-.:::-:.:::::.:::::::::-:·.··.·. -::: ··· ... ... ;. __ ~;,.;.;.~.~---· .. -·.---.;.·-~~---··· .. 560 564 900 609

Resistivity at 25°C (Ohm.M) 0.01 14 18 18 11 16 20 15 ... .-:··.· ..... ·.;·

IDS- calculated (HCO, = C0J) 1 393 348 294 491 314 279 371

t-----T,...otal_Hardn-=:--:-ess----;----:-1 __ +-_4_1-'-::".0_t-_1 __ 6 __ 5 __ ---~~§..- ·---~-~q __ .... ..J:!:J._. ·--~2:L ... _1.?.~--Carbonate Hardness 1 41.0 147 ISO 160 187 49.3 175 ·--------=----+-----+-"'-'""-;-----+ --~---1---- ··--·- ·----·- ----

Non-carbonate Hardness 1 nd 17.6 5.8 nd 39.7 nd nd TotalAlblinityasCaC0J 1 108 147 150 165 187 119 196

.... ·... ....... ................ . ...... ·· . ·': .. ; .................. ............... :.•······· ...... • ... ··.•· .::-.-: ."::-: ·.-:.:·::·(:~:-: -::~::::\ ·:.::·.:.::·;:::::::::-: .-::--.::=::: .. _: _:~::;.:: -:· ::=:::::: . .-::· . ·. : .. ·>. ~- :-=··::.. . ·. : ·: . ~-: _:... . : : :. ··:·· ... · . ::. ·::==:· :·: :.= ·.: . : : ·.-· ""'-'""'""-~'~'""'-:~:-"-~'-'--'-'-t·-'-"----.;.;;~-..;t-....;..;;~'-'-11..;.....-""".-···-· ·-···--·--··-- ···-··-··-·- ·-·-- -····-·············· ··-·---·-

Totllls tllld Balllnce t---.::~~~~==--:----t·---::-::---1---::--:---t----·· ··-·--- ·----···· -----· ·-····-·-···-·· ··----

CationTotal(me/L) · 0.1 7.4 6.1 5.8 9.3 6.5 5.1 7.6 Anion TotaL (Me/L) 0.1 6.6 6.9 5.5 8.8 6.0 4.8 6.8

Ion Difference 0.01 0.77 0.75 0.26 0.50 0.45 0.30 0.82 1----:Io_n.-:B::-al-:-an-cc-----+---=o.-=o-=-1 --t-.._;~5:--t-~6..;. __ -·-·-··2·-·-- ·-····3··--- ··---·4- ·--"3··--·· ··-6·-1-Sodi~-:-. wnrr--==-o-tal-=-=Ca-ti-:-. o-n-=Ra-ti7" o-:(~%:-:-)-t---=o.-=o-=-1--t---78::-9 -;--4-:-:5:- -4~5--l--·65-·- -·-i::,- --78-·· ··-53--

···· .. · ··-:::··-.-:···:···:.-

PQL =Practical Quantitation Limit nd = less than PQL

Table 3. MAJOR IONS

Bore No 57539 64879 64880 116382 Sample /d. 3-.57.539 4-.57.539 3-64879 4-64879 3-64880 4-64880 2-116382 3-116382 4-116382

Sample Date 13/9/96 10/9/96 9/9/96 3/9/96 Lab No. E06987 E06989 E06983 E06991 E06986 E06993 E06981 E0698.5 E06990

Not Fill ned Not Fillered Not Filured Field Not Fillered Fillered

Analyte Dissolved Metal

PQL :.· •.... '".····.·. ·-" ... :.·_.,, __ .ppb) :( : . .o:<,.--./_,,:.::,:';:-..

Gold Au 0.1 <0.1 Gold Aut 0.1 -

·~ng!L· -,,:,;.:r:';:,,:,_.,:-,_:,:'":::-""''·

Arsenic 0.001 nd Antimony 0.002 nd Bariwn 0.001 0.006

Bc:rylliwn 0.001 nd Cadmiwn 0.001 nd Chromiwn 0.001 0.033

Cobalt 0.001 nd Copper 0.001 0.006 Lead 0.001 nd

Manganese 0.001 0.071 Molybdenwn 0.001 nd

Nickel 0.001 0.011 Seleniwn 0.002 nd

Silver 0.001 nd Thallium 0.001 nd

Tin 0.002 nd Zinc 0.002 0.009

PQL = Pract1ca/ Quant1tat10n L1m1t nd = /eJJ than PQL

Filtered

::::::::,::\_-.:;:.,:,.,:,,,,:,>,.· 1':;_,:,,:'"." ·:.;·,, ___ ,_,_ ,_.·_ ... /: ··<-·, ..

<0.1 <0.1 <0.1 <0.1 - -

,·:_''i::\.,,;:·.,,:::,:::_.,,::_' :' :,,,.,, :-.::,},:,):\: ,:,,,:,:·}},,:,::·-· __ : nd nd nd nd nd nd

0.010 0.016 0.017 nd nd nd nd nd nd

0.028 O.Q35 0.028 nd nd nd

0.006 0.001 0.001 nd nd nd

0.070 0.016 0.005 nd nd nd

0.010 0.002 0.002 nd nd nd nd nd nd nd nd nd nd nd nd

0.019 0.010 0.011

Note: Gold analyseJ conducted in Jeparate laboratory (Amdel Adelaide)

FiiJered Blank Filtered

. "i::=,,,,,,,,,_;,::;:,.;,,,.,;.,::_. .···.:::.: :; _ ._,_,_.,',.:_:;''·.;'(''::·.''' ,,;<),;,_,, _ ·.--:

<0.1 <0.1 <0.1 <0.1 <0.1

- - <0.1 <0.1 -:=/~- <-:':'_:_ ·_ ...

nd nd nd nd nd nd nd nd nd nd

0.039 0.040 0.005 0.014 0.015 nd nd nd nd nd

0.001 nd nd nd nd 0.038 0.030 0.034 0.036 0.027

nd nd nd nd nd 0.001 0.002 0.005 0.002 0.001

nd nd nd nd nd 0.003 0.002 0.002 nd 0.001 0.007 0.007 nd nd nd 0.003 0.003 nd 0.004 0.004 0.002 nd nd nd nd

nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd

0.010 0.016 0.020 O.ot5 0.012

Table 4. DISSOLVED METALS

119377 122152 2-119377 3-119377 4-119377 3-1221.52 4-1221.52 .5-1:

5/9/96 6/9/96 E06980 E06984 E06988 E06982 E06992 EO•

Field Not FiiJered Not FiiJered Duplic Blank FiiJered FiiJered

_,._,_,,,_,,.:, :.'':.,.,,'::'_;,:;,.;:_. -·::·-:.-·.·. '• ;_:; .. ;:;.;:: '· .. 'i'/:<<,:_.,,,:_.'"'· ::·;::_:_.:_--·-:-·-·

<0.1 <0.1 <0.1 <0.1 <0.1 <•

- - - - - <I

nd 0.003 0.003 0.001 0.001 0.1 nd nd nd nd nd l

0.005 0.008 0.005 0.023 0.020 0.1 nd nd nd nd nd 1

nd nd nd nd nd I

0.034 0.034 0.028 0.036 0.027 0 nd nd nd 0.003 0.002 0

0.008 0.001 nd 0.002 0.002 0. nd nd nd nd nd

0.002 0.004 0.003 0.10 0.083 0. nd 0.008 0.008 0.001 0.001 0. nd 0.003 0.002 0.016 0.014 0. nd 0.005 0.004 nd nd I

nd nd nd nd nd I

nd nd nd nd nd 1

nd nd nd nd nd I

0.033 0.013 0.009 0.015 0.015 0.

4. CONCLUSIONS AND RECOMMENDATIONS The initial sampling program indicates that using low-level hydrogeochemistry as an exploration tool is technically feasible. The technique established through this program will, with minor modification, provide results of sufficient accuracy and quality to be confident that the hydrogeochemical anomalies are real.

The feasibility of the technique as an exploration tool still requires testing. In this initial program, the only anomalous values of interest were the arsenic values detected in the Tourello bores (and thankfully, not in the blank sample). Ironically, the highest level occurred in the only bore which did not penetrate the basalt. Both bores are recent bores with PVC screens set fairly deep (60 metres).

To test the usefulness of the technique for exploration, a program of testing known anomalous areas needs to be undertaken. This program should include analysis of

. Major ions - useful for tracking the origin of water; and the dissolved metals Au, As, and Fe. Other elements may be useful to include for the same cost per sample.

Dissolved Au analysis using the activated charcoal technique offers the potential for lower detection limits. This technique should be trialed alongside the standard analysis techniques.

Consideration should be given to using another analytical laboratory. Although the quoted price by Amdel was favourable, the service was less than satisfactory. Organisational and staff changes meant that the analytical results were very slow to arrive, and their final report is yet to arrive (samples sent 17 /9).

Consideration should also be given to continuing the project with student involvement, preferably at post-graduate level. Students provide a very cost-effective solution, especially where an Honours student is dedicated full-time to this single project. The project can be structured to provide on-going results to meet Company deadlines.

5. APPENDICES

5.1 Sample bottle preparation

5.2 Bore locations

5.3 Existing hydrogeochemistry

5.4 Standing water levels

5.5 Bore details

5.6 Pumping details

Appendix 5.1 Sample Bottle Preparation

Sample containers and pre-sampling preparation procedures were consistent with AS2031.1 - 1986 - Selection of containers and preservation of water samples for chemical and microbiological analysis Part 1 - Chemical (Standards Association of Australia, 1986). Specific procedures are detailed below:

Sample Containers: Plastic was considered preferable media given that it provides a robust and easy to handle container. Consideration for gaseous diffusion from the water sample and the resultant alteration in water chemistry meant high density polypropylene was used.

Preparation of samples: 1. Sample bottles and caps were rinsed with de-ionised water*. 2. Bottles were rinsed with nitric acid (10%) and then filled completely ensuring all of

the bottle and cap were in contact with the nitric acid. 3. Bottles were left for 48 hours and then upended still containing the nitric acid and

left for a further 48 hours 4. Bottles were rinsed with deionised water and dried

Preservation of samples: For samples requiring trace metal analysis, preservation using the addition of lOml analytical grade nitric acid in one litre of water sample to minimised sorption losses to the container walls. This procedure occurred in the field.

non-volatile matter Chloride ·.·.·.·.·.·.·.· m

m m .. ···· m

m

• De-ionisation of water was achieved with an Elgastat Micromeg with the following specifications: Conductivity 1 - 0.1 J,LS/cm Resistivity 1 -110 MQ- em Si~ <0.05 mg/L C02 <0.5 mg/L Trace Dissolved Metals <0.001 mg/L Residual Solids <0.5 mg/L Average pH 6-8

Appendix 5.2 Bore Locations

I I I I I I I I I

5900000N- 1-

5895000N- 1-

5890000N- -

5885/JOON- -

5880000N- 1-

5875000N- 1-

5870000N- -55414 •

5865000N- -122152 91876

• • 91875 648791193n •

5860000N- • • 1-64880 • 46488 51539

• • 116382 119342 •

5856000N- 121019 1-

• 46489 •

5850000N- -

I I I I I I I I I 725000E 730000E 735000£ 740000E 745000E 750000E 755000£ 760000E 765000E

Creswick 1:100,000 sheet

I~ ~MVer

_1_41041911 [IJ()BVer

[U!We~ tar Bllllll'lt. Geology

Cteowlcl< : 00000 ahMt

oil I -No. _, Old No. Sam Die ,.,,. - Sam~ Sam~ Soluble C/ COJ HCOJ Total SO' 'H Ce Mg w. K Fe - ~ EJectJfcal IOov- _,_ IHNW ·- Secfwfa ---· 'HUtrlenla Olh ..

No. 0.. ,.._ To Sella Chlol Cat* ~ All~/ Su/plt 'HIIro Calc M8(11t SOda Pr>lae -- Conduct an lea /c:lde ,.,.,. -- - "'"" "'"" "'"" """' "'"" "'"" "'"" "'"" "'"" '"""' ,mgll "'"" 46489 ASCOT 48 41049 77107/r.a BAl. ~1 120 122 100 02 3 1:! 85 ~ 14 70 _8, 1 580 et es

119342 ASCOT ~95 25111193 NKN 78 84 624 170 160 • 2.1 2S 39 S3 6 232 7.8 860 et es M414 CLUNES 65 30&44 18105/83 NKN 701 210 268 220 2 0.2 32 ~ 150 ~ 0.2 210 7.7 1100 et es

121019 EROLDOUN 5H5S 29105194 BAl. 60 ~ 487 150 140 10 0.1 17 17 120 3 113 7.1 800 es es 64880 GLENOARUEL 11 41051 27/07/&a BAl. 799 260 317 260 2 2 33 37 140 3 2.1 238 7.9 1200 et es

115382 SPRING Hill :14053 1:!110193 NKN 21 2!1 463 130 170 3 0. 34 36 48 4 ~ r.l) 730 es ... 11937< TOUREL 6714ll -~ NKJ'j_ 1 ~1:!2 0UO(EI ljj 149 ~ NKN

Appendix 5.1 Existing Hydrogeochemsitry

From Victorian Groundwater Data Base (Sinclair Knight Mertz, Feb. 1996)

Jan-86

-10.0

1 0.0

j 10.0

i 20.0

1 30.0

I f

40.0

~.0

60.0

Appendix 5.4 Standing Water Levels

From Victorian Groundwater Data Base (Sinclair Knight Mertz, Feb. 1996)

Jan-87 Jan-88 Jan-89

Bore 119342 Ascot 15006 Standing water levels

Jan-90 Jan-91 Jan-92 Jan-93 Jan-94 Jan-95 Jan-96 Jan-97

-10.0

i 0.0

I 10.0

! 20.0

1 30.0

I i 40.0

~ 50.0

60.0

0.0

J 10.0

! 20.0 .!

! 30.0

l ~

40.0 I

f 50.0 Cl)

60.0

Jan-86 Jan-87 Jan-BB




Jan-89 Jan-90

Jan-89 Jan-90

Jan-91 Jan-92 Jan-93 Jan-94 Jan-95 Jan-96 Jan-97

Jan-91 Jan-92 Jan-93 Jan-94 Jan-95 Jan-96 Jan-97

Jan-86

-10.0

l 0.0

j 10.0

! 20.0

l 30.0

I i 40.0

~ 50.0

60.0

Jan-86

-10.0

l 0.0

.! 10.0

.8

I 20.0

l 30.0

I f

40.0

Cl) 50.0

60.0

Jan-87 Jan-88

Bore 55414 Clunes 65 standing water levels

Jan-87 Jan-88

Bore 57539 Creswick 164 Standing water levels


~ eeeeeeo


Jan-92 Jan-93 Jan-94 Jan-95 Jan-96 Jan-97


Jan-86

-10.0

J 0.0

j 10.0

l 20.0

1 30.0

i I

f 40.0

~ 50.0

60.0

Jan-86

-10.0

' 0.0

J 10.0

! 20.0

1 30.0

I f

40.0

50.0

60.0

Jan-87 Jan-88

Bore 64879 Glendaurel10 Standing water levels

Jan-87 Jan-88

Jan-89

Jan-89

Bore 64880 Glendaurel11 Standing water levels

Jan-90 Jan-91

Jan-90 Jan-91



Jan-86

-10.0

0.0

I 10.0

I l 20.0

1 30.0

I 40.0

~ 50.0 ~

60.0

70.0

Jan-86

-10.0

]' 0.0

§

I 10.0

l 20.0

1 30.0

I f

40.0

50.0

60.0


Bom 91875 Spring Hi/1165 Standing water levels


Bore 91876 Spring Hi/1166 Standing water levels

Jan-90 Jan-91 Jan-92 Jan-93

9~ e eee 9980~0 a e e


08888888&8a8a &88 8&aaeeaeaa8aaaee8aa8ea&aaeaaae 8 eeaeeaeaa9a 8 a a


~8 88 e-&8 8 -c


a e 898 eeaa 8 9 9 8 8 a 9 8 9 o

Jan-86

-10.0

i 0.0

I 10.0

I 20.0

1 30.0

I I

40.0

50.0

60.0

Ja~86

-10.0

J 0.0

j 10.0

l 20.0

1 30.0

I I

40.0

50.0

60.0


Bore 116382 Spring Hl/115006 Standing water levels

Ja~87 Ja~BB Jan-89

Bore 119377 Tourel/o 15006 Standing water levels

Jan-90 Jan-91

Jan-90 Jan-91



Appendix 5. 5 Bore details From Victorian Groundwater Data Base (Sinclair Knight Mertz, Feb. 1996)

w ~ ·-:::; .§.

m

Bore 57539 Creswick 164 Constructed 2215187. Total depth 70m. Aquifer: Basa/t!Tead. Not screened. 203mm steel casing to 6.2m. SWL 3.29m. Pumped 2. 75 hours@ 10 litreslmin av. EC approx. 550uS/cm. Temp. 15 C. Turbidity 81.0 NTU

180

160

140

120

100

80

60

40

20

-20

-40

-60

-80

-100

60 120 180 240 pumping time (minutes)

60 120 180 240

pumping time (minutes) Appendix 5. 6 Pumping Details

ii;'

~ ;:::::: s ijj

Bore 64879 Glendaurel Constructed 19/2186. Total depth 73.8m. Aquifer: Basalt. Screened. 33m - 65. 7m slotted 1 OOmm steel ?. SWL 4.33m. Pumped 4 hours@ 10 litreslmin av. Final SWL 4.3m EC approx. 440uS/cm. Temp. 15 C. Turbidity 6.0 NTU

180

160

140

120

100

80

60

4()

20

-20

-40

-60

-80

-100


10.00

8.00

i 8.00

7.00

6.00


w ::g ·-;::::::

:s. ifi

Bore 64880 Glendaurel11 Constructed 2/4187. Total depth either 81m or 121.04m (unsure) and either 81 m basalt over granite or 101m basalt over lead (unsure) Aquifer. Basalt? lead?. Not screened. 203mm steel casing to 5. Sm. SWL 15. 05m. Pumped 3. 75 hours @ 15/itres/min av. Final SWL 20. 85m EC approx. BOOuSicm. Temp. 16 C. Turbidity 0.45 NTU

180

16()

140

120

100

80

60

40

20

-20

-40

-60

-80

-100

6() 120 180 240 pumping time (minutes)

10.00

8.00

:a 8.00

7.00

6.00

60 120 180 240 pumping time {minutes)

w ~ g ·-:::::: :§. ifi

Bore 119377 Toure/lo Constructed 913194. Total depth 68.5m. Basalt to base. Aquifer: Basalt. Screened 57- 63m Slotted 100mm PVC. SWL 6. 92m. Pumped 2. 25 hours @ 15 /itres/min av. EC approx. 400uS/cm. Temp. 16 C. Turbidity 0. 1 NTU

140

120

100

80

60

40

20

-20

-40

-60

-80

-100

60 120 180 240

pumping time (minutes)

10.00

Q.OO

=a 8.00

7.00

6.00

60 120 180 240

pumping time (minutes)

140

120

100

80

w 60 ~

~ 40

:::: 20 ~ ijj

-20

-40

-60

-80

-100

10.00

1.00

=a 8.00

7.00

Bore 122152 Tourello Constructed 2/8194. Total depth 67.5m. Basalt over clay. Aquifer. Basalt. Screened 58.5- 64.5m slotted 100mm PVC. SWL 25.14m Pumped 3.5hrs@ 6/itres/min av. EC approx. 550 uS/em. Temp. 18 C. Turbidity 8. 63 NTU



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