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Title: Data Validation Package May 2016 Groundwater Sampling at the Sherwood, Washington, Disposal Site August 2016

Technical Report ·
DOI:https://doi.org/10.2172/1351829· OSTI ID:1351829
 [1];  [2]
  1. USDOE Office of Legacy Management, Washington, DC (United States)
  2. Navarro Research and Engineering, Inc., Oak Ridge, TN (United States)

The 2001 Long-Term Surveillance Plan (LTSP) for the US. Department of Energy Sherwood Project (UMI'RCA Title II) Reclamation Cell, Wellpinit, Washington, does not require groundwater compliance monitoring at the Sherwood site. However, the LTSP stipulates limited groundwater monitoring for chloride and sulfate (designated indicator parameters) and total dissolved solids (TDS) as a best management practice. Samples were collected from the background well, MW-2B, and the two downgradient wells, MW-4 and MW-10, in accordance with the LTSP. Sampling and analyses were conducted as specified in the Sampling and Analysis Plan for US. Department of Energy Office of Legacy Management Sites (LMS/PRO/S04351, continually updated). Water levels were measured in all wells prior to sampling and in four piezometers completed in the tailings dam. Time-concentration graphs included in this report indicate that the chloride, sulfate, and TDS concentrations are consistent with historical measurements. The concentrations of chloride and sulfate are well below the State of Washington water quality criteria value of 250 milligrams per liter (mg/L) for both parameters.

Research Organization:
US Department of Energy (USDOE), Washington DC (United States). Office of Legacy Management (LM)
Sponsoring Organization:
USDOE Office of Legacy Management (LM), Office of Field Operations
DOE Contract Number:
LM0000421
OSTI ID:
1351829
Report Number(s):
S00516
Country of Publication:
United States
Language:
English