working TOGETHER Brukunga and the Dawesley Creek Catchment Area

INSIDE Dawesley Creek diversion extension New board appointments ...... 2 starts in early 2014 Days Creek remediation design ...... 2 november 2013 Water monitoring report 2012 ...... 3 The Department for Manufacturing, Innovation, Trade, Resources and Energy (DMITRE) is responsible for the DET CRC update ...... 4 management and remediation of the former Brukunga Training at Brukunga ...... 4 pyrite mine, working in conjunction with the Brukunga Filming at ‘Brukungawood’...... 5 Mine Site Remediation Board.

Brick making trials...... 5 In an effort to improve water quality downstream of the mine, DMITRE will be extending the Dawesley Creek New DMITRE appointment ...... 6 diversion for an additional 300 metres in early 2014. Board meeting...... 6 This will reduce the volume of clean water in Dawesley Geochemical test and trials ...... 7 Creek coming into contact with acid and metalliferous drainage producing wastes on the mine site. Geotechnical remediation trial ...... 7

Brukunga Mine Site Remediation Board .8 The works involve laying pipe both above and below ground at the southern most section of Dawesley Further information ...... 8 Creek within the mine. On-site work will occur over a 12–16 week period (weather permitting) in early 2014. DMITRE and the contractor will endeavor to minimise REMINDER the impact on the Brukunga township and meet all Environmental Protection Authority policies on noise It is recommended that and dust. water in Dawesley Creek downstream of the Brukunga The original Dawesley Creek diversion was completed Mine not be used for any in 2003 and had an immediate and sustained purpose. improvement in water quality downstream of the mine. The diversion extension is expected to further improve Although the installation water quality by reducing acid and metalliferous of the Dawesley Creek drainage entering Dawesley Creek and increasing the mine diversion in 2003 holding capacity of the treatment system. substantially improved water quality, it is still contaminated.

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Department for Manufacturing, Brukunga Mine Site Remediation Board Innovation, Trade, Resources and Energy Representative. Creek Community Downstream Dawesley Suzanne Skibinski, at Callington. Action Planning Association, andlives chair oftheGoolwatoWellington Local last nineyears.Harryisalsotheretiring Murray PlainsCatchmentGroupforthe project officerattheEasternHillsand community liaisonandhasworkedasa Harry hasextensiveexperiencein as acoachandofficialscoordinator. working atEquestrianSouth Australia to DawesleyCreek.Sheiscurrently Dawesley whosepropertyisadjacent Suzanne isalong-termresidentof Suzanne SkibinskiandHarrySeager. members havebeenappointed: pleased toannouncethattwonew remediation strategy. The boardis component oftheBrukungaMine engagement andconsultation Board providesdirectioninthe The BrukungaMineSiteRemediation New boardappointments (Photo 413492)

Brukunga andtheDawesleyCreekCatchment Area (Photo 413491) Representative. Community Harry Seager, www.minerals.dmitre.sa.gov.au

w o is duetobecompletedin2014. has beenunderwaysincelate2011 and Days CreekDomainproofofconcept Detailed planninganddesignforthe and limestone(tocontrolacidity). for thesaturatedwasterock,tailings deep, whichprovidegoodcontainment lie twodeepvoids,about10metres remediation option.Withinthedomain (proof ofconcept)forthepreferred location torunalarge-scaletrial portion oftheformermine,isanideal Days CreekDomain,thenorthern generation ofacid. entering thewasteandsubsequent co-disposed wastepreventsoxygen with oxygenandwater. Saturatingthe acid formingmaterials(likepyrite)mix generated bychemicalreactionswhen Acid andmetalliferousdrainageis rock. engineered coversystemofsoiland a seepagecutoff walland underan (tailings andwasterock),placedbehind and saturationofminewasteon-site Brukunga Mineinvolvesthecompaction The currentremediationdesignforthe design Days Creekremediation rk ing T O GETHER 2 of8 november 2013 Water sampling,Brukunga.

Licence

Resources and Energy Group

10577

EPA

Water monitoring report

Brukunga Mine Site

2012

Mine Completion Program

Report Book 2013/00012 Brukunga andtheDawesleyCreekCatchment Area

Department for Manufacturing, Innovation, Tr

Final report

September 2013

ade, Resources and Energ

(Photo 413483) www.minerals.dmitre.sa.gov.au

y Dawesley Creek. contingency planinordertominimisetheimpactson are managedinaccordancewiththeEPA approved the minesiteandnotifiesEPA. Alloverflowevents measurements ofthewaterqualitydownstream During alloverfloweventsDMITREtakes In 2012: available ontheDMITREwebsite. South Australia (EPA) inSeptember2013andis was submittedtotheEnvironmentProtection Authority • • • The

significant localisedflooding. between 20to25 August andcausedfrom The largestoverflowofminewaterwasexperienced treatment plant. capacity oftheBrukungaMinesiteacidwater and flowthatexceededtheholdingtreatment to DawesleyCreek. This wasaresultofheavyrains acid minewaterfromtheon-sitecatchmentsystem There weresevensmallandonelargeoverflowsof 560 millimetres. Brukunga comparedwiththelong-termaverageof A totalof582millimetresrainwasrecordedat Water monitoringreport2012 Brukunga Minesitewatermonitoringreport2012 w o Full diversiondrain,Brukunga. rk ing T O GETHER

(Photo 413482) 3 of8 november 2013 (Courtesy ofDET CRC;photo413484) DET CRCdrill rig atBrukunga with carbon-fibredrillrods. include testingtheworld’s firstdrilling Planned futureactivitiesfor2013–14 in 2013for122students. Nine drillertrainingcourseswereheld hole wascompletedto354metres. and in2013theseconddiamonddrilled drillhole downtoadepthof300metres, In 2012thefacilitycompletedtheirfirst mineral deposits. ways todrill,analyseandtargetdeep for moresuccessful,cheaperandsafer CRC aimstodeliverresearchprograms using astate-of-the-artdrillrig.DET Fire Service(CFS)inNovember2011 adjacently locatedBrukungaCountry at theBrukungaMinesiteand CRC) establishedaresearchfacility Cooperative ResearchCentre(DET The DeepExploration Technologies DET CRCupdate Brukunga andtheDawesleyCreekCatchment Area www.minerals.dmitre.sa.gov.au . w o over thelast12months. have alsousedtheminesitefortraining The South Australia PoliceandCFS methods andtechnologies. acquiring abroadoverviewofdrilling took partinpre-employmentprograms, In thelastquarterover50trainees drilling facilityforvocationaltraining. DET CRChasalsobeenusingthe quarry. the acidwatertreatmentplantand related skills,utilisingtheCFSfacility, trained invariousmineandquarrying approximately 340studentshavebeen training inmininganddrilling. To date CFS facilitiessince2012toconduct been usingtheBrukungaMinesiteand registered trainingorganisationandhas The Australian Training Alliance isa Training atBrukunga (Courtesy of Australian Training Alliance; 413485) Australian Training Alliance studentsatBrukunga. rk ing T O GETHER

4 of8 november 2013 Brukunga in2013. Screen shotofMitsubishiTriton commercialfilmedat (Courtesy ofFarmersUnion;photo413486) commercial filmedatBrukungain2013. Screen shotofFarmersUnionIcedCoffee Disappearance include Brukunga asthebackdrop Previous filmswhichhaveused – SamFox:extremeadventures. a yettobereleasedchildren’s TV show and Mitsubishi Triton commercialsand included FarmersUnionIcedCoffee Filming overthelast18monthshas desert likevisualsofthequarry. and commercialsutilisingtherocky be usedforvariousfilms, TVshows The BrukungaMinesitecontinuesto ‘Brukungawood’ Filming at Road train (Courtesy of Mitsubishi; photo413487) Brukunga andtheDawesleyCreekCatchment Area (2002). (2010)andthe www.minerals.dmitre.sa.gov.au

w o trial. conducting alargerscalebrickmaking Investigations arecontinuinginto and tailings. heavy metalscontainedinthesludge was successfulinlockingthesoluble The brickfiringprocess(vitrification) brick pellets. and sandatvariousratiostomaketrial sludge (andBrukungatailings)withclay at GoldenGrove, Yuan blendedthe In conjunctionwith Austral Bricks paver production. acid watertreatmentplantforbrickand gypsum sludgefromtheBrukunga Yuan Tian, investigatedtheuseof In 2012–13oneofDMITRE’s students, vacation. Brukunga overthesummeruniversity to workonvariousresearchprojectsat DMITRE employsoneortwostudents Brick makingtrials and tailings. Brick pelletsmadefromBrukunga gypsumsludge rk ing

(Photo 413488) T O GETHER 5 of8 november 2013 meeting waswellattendedwithabout20people. Mine RemediationProgramandtheDawesleyCreekdiversionextension. The The boardandDMITREspoketothecommunityaboutprogressonBrukunga on theeveningof22February2013. The Board meeting Brukunga MineSiteRemediationBoard Brukunga andtheDawesleyCreekCatchment Area www.minerals.dmitre.sa.gov.au 411218 addition totheBrukungateam. plants anddealingwithminewastesisawelcome considerable experienceinmanagingwatertreatment both inhisnativePeruand Australia. Hehas with over20yearsexperienceintheminingindustry, Remediation Program.Raulisachemicalengineer as projectdirectorfortheBrukungaMineand In mid2012DMITREappointedRaulMollehuara New DMITREappointment heldanopenpublicinformationsession w o rk ing T O GETHER 6 of8 november 2013 (Photo 413489) Brukunga saturatedco-disposed minewastemodel. Construction ofthe100tonne trialfortheproposed Geochemical trialsarecontinuing. solubility ofthewastesconsiderably. organic contentcanincreasetheiron it wasfoundthatasmallamountof Results wereencouraging;however, of acidandmetalliferousdrainage. of theminewastesstopsgeneration blending withlimestoneandsaturation 100 tonnetrialtodemonstratehow DMITRE alsocommencedalarger determine theirproperties. in withsaturatedminewastesto gypsum sludgeandorganiccontent which investigatesthemixingof Stage 3oftheColumnLeach Trails in 2010,DMITREhasprogressed Continuing onfromworkstarted design. proposed fortheBrukungaremediation co-disposed minewastemodel to demonstrateandrefinethesaturated geochemical testsandtrialsdesigned research officerhasbeencontinuing Throughout 2013DMITRE’s trials Geochemical testand Brukunga andtheDawesleyCreekCatchment Area www.minerals.dmitre.sa.gov.au

w o waste model. the proposedBrukungasaturatedco-disposedmine Construction ofthegeotechnicalremediationtrialfor remediation designand took3weeks. This trialassistedtheDays Creek co-disposed area. saturation andoxygenrateswithinthe through thetrialpadtomonitor Monitoring probeswereinstalled saturated andcompacted. the mine. The materialwasmixed, limestone in one of the benchpitswithin 6000 tonnesofwasterock,tailingsand The trialplacedapproximately mixed withthelimestoneeffectively. how thewasterockandtailingscanbe – inparticular,design of theremediation The trialdeterminedtheconstructability model. saturated co-disposedminewaste remediation trialoftheBrukunga DMITRE conductedageotechnical trial Geotechnical remediation rk ing T (Photo 413490) O GETHER 7 of8 november 2013 Deb Johnson,DMITREadministrativesupport Suzanne Skibinski,DownstreamDawesleyCreekCommunityRepresentative Harry Seager, CommunityRepresentative Andrew Stuart,DistrictCouncilofMountBarker Rolly MacDonald,DawesleyCreekCatchmentLandcareGroup Dr Ted Tyne,DMITRE Hume Macdonald,Chairman Board members (08) 84633034 Adelaide SA 5001 GPO Box1264 Brukunga MineSiteRemediationBoard Brukunga andtheDawesleyCreekCatchment Area www.minerals.dmitre.sa.gov.au w o Projects, FormerMines,BrukungaMineSite. sa.gov.au>. GotoMines&Developing DMITRE Mineralswebsite of WorkingTogether photos, monitoringreportsandpastissues Further informationonBrukunga,including FURTHER INFORMATION rk ing T O GETHER , canbefoundonthe

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