Good Afternoon, Please find ECCCs presentation for the Public - PDF document

From: Epp, Cari-Lyn (EC) To: Erica Janes Cc: Small, Jody (EC); Graham2, Anna (EC); EE Nord RPN TNO / EA North PNR NWT (EC) Subject: ECCC Public Hearing Presentation for Town of Hay River WL Application Date: Thursday, August 13, 2020 2:44:32 PM Attachments: 20200813_TOHR_WL_PublicHearingPresentation_Final.pdf Good Afternoon, Please find ECCC’s presentation for the Public Hearing for the Town of Hay River WL renewal application attached. Please let me know if you have any question or concerns. Thank you, Cari-Lyn Cari-Lyn Epp Senior Environmental Assessment Officer | Agente principal d'évaluation environmentale Environmental Protection Operations | Activités de protection de l'environnement Environment and Climate Change Canada | Environnement et changement climatique Canada National Water Research Institute | Institut national de recherche sur les eaux 11 Innovation Blvd. | 11, blvd. Innovation Saskatoon (Saskatchewan) S7N 3H5 cari-lyn.epp@canada.ca Telephone | Téléphone 306-491-2372 Facsimile | Télécopieur 306-975-5143 Government of Canada | Gouvernement du Canada Website | Site Web www.ec.gc.ca

l ♦ I Environment and Environnement et Climate Change Canada Changement climatique Canada Environment and Climate Change Canada’s Presentation to the Mackenzie Valley Land and Water Board Respecting the Town of Hay River Water Licence Renewal Application Public Hearing September 8-10, 2020 Yellowknife, NT Canad a

I l ♦ Overview • Mandate • Relevant Acts and Regulations • Status of Environment and Climate Change Canada’s Technical Comments • Comments and Recommendations from Final Intervention Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

l ♦ I Environment and Climate Change Canada’s Mandate • The preservation and enhancement of the quality of the natural environment, including water, air and soil quality, and the coordination of the relevant policies and programs of the Government of Canada • Renewable resources, including migratory birds and other non-domestic flora and fauna • Meteorology • The enforcement of rules and regulations Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

l ♦ I Relevant Acts and Regulations • Department of the Environment Act • Canadian Environmental Protection Act • Fisheries Act – Pollution Prevention Provisions • Migratory Birds Convention Act • Species at Risk Act Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

I l ♦ Technical Comments Current Status of ECCC Technical Comments ECCC-TC1 Consistency of terminology - Definition of Resolved Biotreatment Pad ECCC-TC2 Consistency of terminology - Timing of leachate Resolved monitoring/inspections ECCC-TC3 Timing of annual sampling in the Hay River Resolved; related additional recommendation ECCC-TC4 Active link for Surface Water and Sewage Effluent Resolved Monitoring and Sampling Methodology ECCC-TC5 Sulphate, chloride and fluoride in the SNP0053-7X Resolved series monitoring ECCC-TC6 Addition of specific metals to monitoring at the Resolved 0053-5x and 0053-7x series wells Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

I l ♦ Technical Comments (continued) Current Status of ECCC Technical Comments ECCC-TC7 Sampling at SNP0053-5a after major rainfall Unresolved events ECCC-TC8 Monitoring Fire Related Contaminants Resolved ECCC-TC9 Background versus exposure for sampling Resolved groundwater wells ECCC-TC10 Clarification of SWDF runoff/leachate sampling and Resolved action levels for SNP0053-5a ECCC-TC11 Updated Figure 7 for Water Monitoring Plan Resolved Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

I l ♦ Final Intervention Comments Status of Final Intervention Comments ECCC-TC7 Sampling at Station SNP0053-5a In Progress ECCC-FC1 ECCC-TC8 Monitoring Fire Related Contaminants Path forward proposed ECCC-FC2 ECCC-FC3 Hay River Surface Water Sampling Resolved ECCC-FC4 Groundwater Monitoring Wells Substantially Resolved ECCC-FC5 Dissolved Metals Analysis for the Groundwater Path forward proposed Monitoring Program ECCC-FC6 Corrective Actions Monitoring Parameters Resolved Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

I l ♦ ECCC-TC7 / ECCC-FC1 (Unresolved) Sampling at Station SNP0053-5a ECCC recommends that sampling at station SNP0053-5a be conducted after major rain events and at a minimum, monthly, during periods of flow. Any sampling conducted at SNP0053-5a after a major rain event could also satisfy the monthly sampling requirement. Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

l ♦ I ECCC-TC8 / ECCC-FC2 (Path Forward Proposed) Monitoring Fire Related Contaminants ECCC agrees with the Proponent’s suggestion to keep the monitoring of contaminants that could have been mobilized by the fire separate from the WL parameters. This could be accomplished by including a separate (limited) SNP licence condition, as changing this does not require a hearing process. Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

l ♦ I ECCC-FC4 (Substantially Resolved) Groundwater Monitoring Wells ECCC recommends that the Proponent provide an update regarding when a second background monitoring well and two down-gradient monitoring wells would be added to the SWDF groundwater monitoring network (as recommended by the Groundwater Monitoring Review Proposal (Beckingham Environmental Ltd.; January 2020) Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

l ♦ I ECCC-FC5 (Path Forward Proposed) Dissolved Metal Analysis for the Groundwater Monitoring Program ECCC recommends that the full range of dissolved metals be monitored and reported in the Groundwater Monitoring Program for the duration of the water licence. Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada

l ♦ I Thank You Canad a Environment and Environnement et Climate Change Canada Changement climatique Canada