WATER LICENCE RENEWAL EKATI MINE WL2012L2-0001 INDEPENDENT - PowerPoint PPT Presentation

WATER LICENCE RENEWAL EKATI MINE WL2012L2-0001 INDEPENDENT ENVIRONMENTAL MONITORING AGENCY FEBRUARY 12 & 13, 2013

OUTLINE  CHANGES PROPOSED BY BHPB  EFFLUENT QUALITY CRITERIA (EQCs) – LONG LAKE CONTAINMENT FACILITY – DISCHARGE TO CUJO LAKE – POST-CLOSURE  RESPONSE FRAMEWORK AND PLANS February 12 & 13, 2013 IEMA 2

CHANGES PROPOSED BY BHPB  SCOPE AND DEFINITIONS – EXPIRY DATE – DEFINITIONS  SECURITY DEPOSITS  WASTE DISPOSAL – WASTE ROCK STORAGE AREAS REPORT – FREEBOARD REQUIREMENTS – EQCs February 12 & 13, 2013 IEMA 3

CHANGES PROPOSED BY BHPB (2)  MODIFICATIONS  CONTINGENCY PLANNING – INTEGRATED APPROACH FOR RESPONSE FRAMEWORK AND AQUATIC EFFECTS MONTORING PROGRAM February 12 & 13, 2013 IEMA 4

CHANGES PROPOSED BY BHPB (3)  AQUATIC EFFECTS – RETAIN CURRENT REQUIREMENTS FOR AQUATIC EFFECTS MONITORING PROGRAM IN THE LICENCE  SURVEILLANCE NETWORK PROGRAM – ACCEPT SUGGESTED CHANGES TO SNP – USE EQCs FOR KING POND(1616-43) FOR DESPERATION POND (1616-47) February 12 & 13, 2013 IEMA 5

EFFLUENT QUALITY CRITERIA  DISCHARGES FROM LLCF (1616-30)  DISCHARGES TO CUJO LAKE (1616-43)  POST-CLOSURE CRITERIA February 12 & 13, 2013 IEMA 6

DISCHARGES FROM LLCF  DELETE AMMONIA-N, ARSENIC, COPPER, NICKEL, BOD  ADD POTASSIUM  ADD NITRATE-N – INTERIM OF 10.0 MG/L FOR TWO YEARS – CONTINUE STUDIES ON POTENTIAL IMPACT OF CHANGES ON FISH POPULATIONS – REQUIRE A NITROGEN RESPONSE PLAN  ADD CHLORIDE – REQUIRE A CHLORIDE RESPONSE PLAN  ADD SELENIUM February 12 & 13, 2013 IEMA 7

DISCHARGES TO CUJO LAKE  SUPPORTS PROPOSALS FOR pH, TSS, TPH  DISAGREES WITH USE OF CUJO LAKE AS DILUTION ZONE  ADD NITRATE-N – INTERIM VALUE OF 12.0 MG/L FOR TWO YEARS – CONTINUE STUDIES AND NITROGEN RESPONSE PLAN February 12 & 13, 2013 IEMA 8

OTHER EFFLUENT QUALITY CRITERIA CONCERNS POST-CLOSURE CRITERIA • NEED FOR A PROCESS TO DEFINE EQCs AT CLOSURE IN RENEWAL LICENCE February 12 & 13, 2013 IEMA 9

RESPONSE FRAMEWORK & MANAGEMENT PLANS  RESPONSE FRAMEWORK – GENERAL AGREEMENT WITH APPROACH – RECOMMEND THREE ACTION LEVELS & LONGER LEAD TIMES  RESPONSE PLANS – IMMEDIATELY FOR NITROGEN & CHLORIDE February 12 & 13, 2013 IEMA 10

SUMMARY  SUPPORT A NUMBER OF CHANGES AND APPROACHES SUGGESTED BY BHPB  SOME AREAS OF DISAGREEMENT REMAIN  NEED FOR TIMELY DEVELOPMENT OF GLOBAL SECURITY DEPOSIT February 12 & 13, 2013 IEMA 11

MAJOR RECOMMENDATIONS  DEFINE ENGINEERED STRUCTURES  SET INTERIM EQC FOR NITRATE-N – THREE WATERSHED STATIONS (KOALA, CUJO AND DESPERATION) – LOWER THAN PROPOSED SSWQO  PREPARE NITROGEN RESPONSE PLAN – KOALA AND KING-CUJO WATERSHEDS February 12 & 13, 2013 IEMA 12

MAJOR RECOMMENDATIONS (2)  SET EQC FOR CHLORIDE AT 1616-30 PREFERABLY AT CCME GUIDELINE  PREPARE CHLORIDE RESPONSE PLAN FOR KOALA WATERSHED  INTEGRATE RESPONSE FRAMEWORK INTO AQUATIC EFFECTS MONITORING PROGRAM February 12 & 13, 2013 IEMA 13

MAJOR RECOMMENDATIONS (3)  RETAIN CURRENT REQUIREMENTS IN PART J, ITEM 3 AND SCHEDULE 8 (AEMP)  REQUIRE STUDIES PRIOR TO ANY USE OF CUJO LAKE AS DILUTION ZONE  SET EQCs FOR 1616-47 (DESPERATION) AT SAME VALUES AS 1616-43 (CUJO) February 12 & 13, 2013 IEMA 14

THANK YOU Independent Environmental Monitoring Agency Telephone: (867) 669-9141 Fax: (867) 669-9145 Email: monitor1@yk.com Website: www.monitoringagency.net February 12 & 13, 2013 IEMA 15