Technical Language
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2018-2019 ANNUAL REPORT Technical Language A public watchdog for environmental management at EKATI DIAMOND MINE Satellite image 2010/BHP Billiton CANADA Inc. EKATI DIAMOND MINE LEGEND 6 1 1 WASTE ROCK PILE (PANDA-KOALA-BEARTOOTH WRSA) 2 WASTE ROCK PILE (FOX WRSA) 1 3 WASTE ROCK PILE (PIGEON WRSA) 3 4 WASTE ROCK PILE (SABLE WRSA) 5 WASTE ROCK PILE (MISERY AND LYNX WRSA) 2 6 WASTE ROCK PILE (PROPOSED JAY WRSA) B COARSE KIMBERLITE REJECTS STORAGE AREA 3 A 1 1 PIGEON PIT 2 2 BEARTOOTH PIT C 4 3 PANDA PIT 1 4 KOALA AND KOALA NORTH PIT 5 FOX PIT 6 SABLE PIT D AIRSTRIP 7 MISERY PIT 2 8 LYNX PIT E 9 JAY PROJECT (PROPOSED) • LONG LAKE CONTAINMENT FACILITY (CELLS A–E) INCINERATORS 1 PIGEON STREAM DIVERSION 5 2 PANDA DIVERSION CHANNEL 1 MAIN SITE OLD CAMP 2 2 3 MISERY CAMP AIRSTRIP II 4 4 6 SABLE PIT 4 PIGEON PIT BEARTOOTH PIT PANDA PIT ■ NORTHWEST TERRITORIES KOALA PIT ■ NUNAVUT MAIN SITE FOX PIT 5 3 JAY PROJECT (PROPOSED FOOTPRINT) 6 9 7 8 2,000 0 4,000 KM MISERY PIT LYNX PIT III LAND DISTURBANCE AND ROAD LENGTH LAND DISTURBANCE LAND DISTURBANCE LAND DISTURBANCE AND ROAD LENGTH EKATI MINE YELLOWKNIFE Sable Direct habitat loss caused by the Ekati mine project since 1997 38 km2 Pigeon 26 km City of Yellowknife Main estimated footprint (area shaded brown) Site 30 km2 Jay 29 km Misery Lynx Total roads at Ekati 141 km IV LAND DISTURBANCE LAND DISTURBANCE Approx Land How much bigger Disturbance is the Ekati mine? BEHCHOKǪ̀ KUGLUKTUK LAND DISTURBANCE AND ROAD LENGTH YELLOWKNIFE 30 km2 x 1.3 KUGLUKTUK 2.5 km2 x 15 BEHCHOKO 2.4 km2 x 16 CAMBRIDGE BAY 1.6 km2 x 24 ŁUTSELKʼE 1.3 km2 x 29 WHATI 0.8 km2 x 47 GAMETI 0.8 km2 x 47 WEKWEETI 0.5 km2 x 76 Town of Kugluktuk estimated footprint (area shaded brown) Behchokǫ̀ estimated 2 footprint 2.5 km (area shaded brown) 2.4 km2 V TABLE OF MINE INFO ..............................................................................................................................................II LAND DISTURBANCE AND ROAD LENGTH .....................................................................................IV CONTENTS MESSAGE FROM THE CHAIR �������������������������������������������������������������������������������������������������������������VII RECOMMENDATIONS AND RESPONSES .......................................................................................... 8 CURRENT CONDITIONS & EXPLORATION ..................................................................................... 13 AGENCY ACTIVITIES ��������������������������������������������������������������������������������������������������������������������������� 16 WILDLIFE EFFECTS �����������������������������������������������������������������������������������������������������������������������������20 AQUATIC EFFECTS ������������������������������������������������������������������������������������������������������������������������������ 25 TRADITIONAL KNOWLEDGE & ENGAGEMENT ..............................................................................34 AIR QUALITY ........................................................................................................................................38 WASTE ROCK .......................................................................................................................................42 WASTEWATER AND PROCESSED KIMBERLITE MANAGEMENT .................................................49 CLOSURE & RECLAMATION �������������������������������������������������������������������������������������������������������������� 57 ASSESSMENT OF THE REGULATORS ..............................................................................................63 ASSESSMENT OF DOMINION DIAMOND MINES ...........................................................................66 FINANCIALS .........................................................................................................................................68 ACRONYMS & GLOSSARY .................................................................................................................82 DIRECTOR BIOGRAPHIES �����������������������������������������������������������������������������������������������������������������84 Front and back cover photos: courtesy of Dominion Diamond Mines, ULC MESSAGE FROM THE CHAIR I am pleased to present the 2018-19 annual report of the Independent Environmental Monitoring Agency (Agency). The report summarizes the Agency’s activities and offers recommendations for Dominion Diamond Mines ULC (Dominion) and for regulators. 2018 marked 20 years of production at the Ekati mine and the company commemorated with a celebration in August at the mine site and in Yellowknife. The Agency congratulates Dominion on this significant MESSAGE FROM THE CHAIR achievement. The major focus for the Agency over the past year has been participating in the review of Interim Closure and Reclamation Plan (ICRP) v3.0. This document has not been revised since 2011, and recognizing the importance of closure of the mine to our Aboriginal Society Members, the Agency travelled to five communities to host Information Sessions where we presented a summary of the ICRP. These sessions not only informed the community members about what is in the document and the Agency’s concerns, but also provided an opportunity for open discussion and for the Agency to hear community concerns. As part of the review process the Agency also participated in the WLWB-sponsored technical workshop and provided comments and recommendations to the WLWB including a recommendation that the ICRP v3.0 should not be approved in its current form as the plan lacks detail in many important areas. This past year the Agency also participated in the review and evaluation of a number of important documents providing comments on the 2017 Air Quality Monitoring Program Report, Dust Suppressant Pilot Study Report (2016/17), Sable Waste Rock Storage Area Design Plan, Waste Water Processed Kimberlite Management Plan and Waste Rock and Ore Management Plan Version 9.0 and 10.0. Our main concerns and recommendations focused on seepage, risk mitigation for potentially acid generating waste rock, the use of the term “non-acid generating”, and the use of diabase as a construction material on site. Over the next year the Agency will continue to review and provide recommendations on Dominion’s environmental management and monitoring plans and activities to ensure that there is good environmental performance at the mine site. Please feel free to contact the Agency at any time with your comments and concerns, or if you wish for us to visit your community. Jaida Ohokannoak www.monitoringagency.net VII RECOMMENDATIONS & RESPONSES Each year the Agency provides recommendations to Dominion Diamond Mines ULC, the Wek’èezhı̀i Land and Water Board, and applicable federal and territorial government departments based on the review of information and comments from the past 12 months. This section includes Agency recommendations from the past year and the responses we received to those recommendations. ← Course Processed Kimberlite Rejects Pile TO WEK’ÈEZHÌI LAND AND WATER BOARD Wek’èezhìi Land and Water Board Response The Board is aware that IEMA has raised similar Waste Rock – Effective Neutralizing Potential concerns previously, including in its comments on The Wek’èezhìi Land and Water Board (WLWB or the WROMP Version 9.01 and 10.02. The Board has the Board) met on June 13, 2019 and considered communicated that it agrees “additional discussion RECOMMENDATION the Independent Environmental Monitoring of effective NP for all waste rock at the Ekati Agency (IEMA)’s May 27, 2019 e-mail (see attached). mine site is warranted” and previously directed 1 IEMA identified that its upcoming Environmental Dominion to discuss the use of effective NP in Agreement Annual Report will include a the interim Closure and Reclamation Plan (ICRP) RESPONSES& RECOMMENDATIONS recommendation for the WLWB regarding effective 3 The Wek’eezhii Land and Water Board undertake Version 3.0 . In addition, the Board has stated neutralizing potential (NP) at the Ekati mine site, a review to determine the most effective and that “given the ongoing review of the Effective NP and requested the Board provide a response to be efficient approach to testing and determining [Memorandum] and the ICRP Version 3.0, it is most incorporated into its Annual Report. the neutralization, acid rock drainage and metal appropriate to consider any necessary actions leaching potential of waste rock at the Ekati (e.g., expert review, technical workshop, resulting mine and other northern mine sites. WROMP revisions) in consideration of the ICRP Version 3.0.”4 IEMA has referenced the technical memorandum submitted by Dominion as part of the ongoing ICRP Version 3.0 proceeding, however, the Board understands that IEMA’s recommendation to the WLWB was not provided as part of a specific proceeding. As a matter of procedural fairness, the Board cannot respond to a recommendation on a proponent’s submission outside of the proceeding for that submission. 1 See WLWB Online Registry for W2012L2-0001 - Ekati - WROMP - Version 10.0 - Review Summary and Attachments - Mar 22_19.pdf; IEMA comment 3 and 4 2 See WLWB Online Registry for W2012L2-0001 - Ekati - WROMP V9 and Sable WRSA Design Report V2 - Review Summary and Attachments - Jun 4_18.pdf; IEMA comment 3 3 See WLWB Online Registry for W2012L2-0001 - Ekati - WROMP - Version 9.0 - Board Directive and RFD - June 27 _18.pdf 4 See WLWB Online Registry for W2012L2-0001 - Ekati - WROMP - Version