Hydraulic Testing of Lost Lake Aquifer Near Recovery Wells RWM018, RWM 3, and RWM 5
- Savannah River Site (SRS), Aiken, SC (United States)
An aquifer pumping test was conducted on the Lost Lake Aquifer Zone (LLAZ) at the recently installed recovery well RWM018 in accordance with the approved test plan (Dixon, 2018). The objective of the testing was to determine baseline well performance parameters and aquifer hydraulic conductivity. Well performance parameters determined included specific capacity, well efficiency, and head loss coefficients. The specific capacity of RWM018 was determined to be approximately 3.2 gpm/ft of drawdown. At baseline conditions (all active recovery wells operating except RWM018), RWM018 has approximately 26 ft of head above the well screen. This suggests that RWM018 can sustain a maximum pumping rate of 83 gpm with drawdown at the top of screen. Well efficiency was inversely related to pumping rate and decreased from 97% to 91% over a pumping range of approximately 20 to 55 gpm. These results suggest that RWM018 is an efficient well and does not require any further well development activities. The aquifer head loss coefficient was determined to be 2.1 ft/ft3 /min and the well loss coefficient was determined to be 0.03 min2/ft5.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM)
- DOE Contract Number:
- AC09-08SR22470
- OSTI ID:
- 1471998
- Report Number(s):
- SRNL--STI-2018-00434
- Country of Publication:
- United States
- Language:
- English
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