2023-03-02_REVISION - M2001046 - Laserfiche WebLink

Home Browse Search

CIVIL RES'DURCES ➢ Modifying a well to operate under lower groundwater conditions. This could include deepening the well or lowering pumps. All work would be done at the miner's expense with the exception of replacing equipment that was non-functional prior to mining. Groundwater Quality Monitoring Plan Since mining operations at the site will take place inside of slurry wall lined cells, except for establishing the Freshwater Pond and Siltation Pond, it is unlikely that these operations will have a negative effect on groundwater quality. To establish pre-mining groundwater quality for the site, RMCC sampled wells Nix-Owens-Mon 4, Nix-Owens-Mon 5A, Nix- RMCC-Mon 6, Nix-RMCC-Mon 7, and Nix-RMCC-Mon 8 on June 3rd, 2021. The samples collected were tested for the water quality analytes listed in Tables 1 through 4 of"The Basic Standards for Ground Water,"excluding the radiological section of Table 1. To establish that mining has had no negative affect on water quality in the area, RMCC will sample the wells listed above annually during the month of June. The water quality samples will be tested for the analytes listed in Tables 1 through 4 of"The Basic Standards for Ground Water,"excluding the radiological section of Table 1. RMCC will notify DRMS within 7 days of receiving a lab report that indicates any of the standards set forth in Tables 1 through 4 have been exceeded. If a lab report indicates an exceedance, a new sample will be taken to verify the exceedance and discount lab contamination.Any water quality lab results will be included in the DRMS annual report for the site. Annual groundwater testing will be conducted for the life of the mine unless the requirement has been reduced or eliminated through the Technical Revision process with the DRMS. Attachments: Existing Conditions Map Proposed Reclamation Map J:IBrannanlNixIDRMS-AMENDMENT1Adequacy RevieMGroundwater Monitoring Plan.doc