2023-05-08_HYDROLOGY - M2001046

• Permit No: M2001046
• IBM Index Class Name: Hydrology
• Doc Date: 5/8/2023
• Doc Name: Water Monitoring - Groundwater
• From: Brannan Sand and Gravel CO
• To: DRMS
• Email Name: ECS
• Email Name: MAC
• Media Type: D
• Archive: No

Table 2: Groundwater Monitoring Stations
Station Type POC Well Top of Casing Location Purpose
Elevations
Water Southwestern To establish groundwater flow direction,not
Nix Owens-Mon 1 Elevation No 480345 perimeter of site. used for water quality sample collection.
Included in monthly water level sampling.
Water To establish upgradient water quality in the
Quality& Southwestern southwest corner of the site.Can be
Nix-Owens-Mon 2 Water No 4805.77 perimeter of site. compared against other downstream wells to
Elevation determine potential influence from mining
operations.
Water Southwestern To establish groundwater flow direction,not
Nix-Varra-Mon 3 Elevation No 4805.58 perimeter of site. used for water quality sample collection.
Included in monthly water level sampling.
Water To monitor the groundwater upgradient of the
Nix-Owens-Mon Quality& Southeastern central portion of gravel pit.Can compare
4A Water No 4810.19 corner of site. results to the downgradient station results to
Elevation determine if any impacts to groundwater have
occurred.
Water To monitor the groundwater downgradient of
Nix-Owens-Mon Quality& Western the gravel pit&influence from nearby mining
Yes 4801.64 operations.Can compare results to the
SA Water perimeter of site. upgradient station results to determine if any
Elevation impacts to groundwater have occurred.
Water To monitor the groundwater downgradient of
Quality& Western the gravel pit.Can compare results to the
Nix-RMCC-Mon 6 Water Yes 4800 80
perimeter of site. upgradient station results to determine if any
Elevation im acts to groundwater have occurred
Water To monitor the groundwater upgradient of the
Nix-RMCC-Mon 7 Quality& No 480790 Eastern perimeter mining operation.Can compare results to the
Water of site. downgradient station results to determine if
Elevation any impacts to groundwater have occurred.
Water To monitor the groundwater upgradient of the
Nix-RMCC-Mon 8 Quality& No 4798.93 Northern mining operation.Can compare results to the
Water perimeter of site. downgradient station results to determine if
Elevation any impacts to groundwater have occurred.
Water To monitor the groundwater downgradient of
Quality& Northwest comer the gravel pit.Installed in April 2023.Can
Nix-RMCC-Mon 9 Water Yes 4794.00 of site. compare results to the upgradient station
Elevation results to determine if any impacts to
groundwater have occurred.
Water North of Piezo To establish groundwater flow direction,not
Piezo 131-1-56 Elevation No 4797.00 BH-5C,in cell 2. used for water quality sample collection.
Included in monthly water level sam lin .
Water Northwestern To establish groundwater flow direction,not
Piezo BH-5C Elevation No 4799.11 mining envelope, used for water quality sample collection
in cell 2. Included in monthly water level sampling.
Water On eastern site To establish groundwater flow direction,not
Piezo BH-14 Elevation No 4803.27 perimeter,in cell used for water quality sample collection.
2. Included in monthly water level sampling.
Central western
Water perimeter,on To establish groundwater flow direction,not
Piezo BH-21A Elevation No 4795.58 southern used for water quality sample collection
perimeter of cell Included in monthly water level sampling
3
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