DWQ-2025-001282

Table 2
Well ID & Name
General Location
Permit Condition
Up-gradient (Clean Water Capture)
300 ft. up-gradient of Dry Fork dump
Down-gradient (Alluvial Extraction)
900 ft. down-gradient of Bingham Canyon dump
- Target pumping rate is 100 acre-feet/year based on a 3 year rolling average¹
- Pumping to continue until sulfate concentration <5000 mg/L
- If sulfate concentration >5000 mg/L resume pumping
3200 ft. down-gradient of Bingham Canyon dump
- If alluvial well water level <92 feet then decrease pumping rate to match inflow
- Pumping rate may be decreased or stopped to match inflow if it is determined that up-gradient alluvial pumping well(s) are diminishing available alluvial water
3500 ft. down-gradient of Bingham Canyon dump
- Pump alluvium at a rate consistent with available inflow of contaminated water
- Pumping may cease if the quantity of alluvial water is less than the well can sustain
5600 ft. down-gradient of Bingham Canyon dump
- None specific to Dry Fork plume
Note:
¹ Target pumping rate is 100 acres-feet per year based upon a three year rolling average for both K83 and ECG2787 combined. The pumping rates for ECG2787 may influence available water
that can be extracted from the alluvium by K83.
COP2701
(Mid-Valley)
VWK83
(Curtis Springs)
ECP2562
(Bingham Creek COW)
ECG1185
(Copperton Channel)
Table 2: Permit Conditions for Dry Fork Extraction Wells
ECG2787
(Bingham Canyon Alluvial Well)
- Keep surrounding alluvium substantially dewatered

- Applies to both wells
1500 ft. upgradient of Dry Fork dump, and it's replacement of COG1172
COG2865²
(Picnic Flats)
²COG2865 is a replacement for well COG1172 that was abandoned.