Title | Black Lake Grocery Groundwater Monitoring Results, October 2021: Data Summary Report |
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Black Lake Grocery Groundwater Monitoring Results, October 2021: Data Summary Report (Number of pages: 22) (Publication Size: 1686KB)
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Author(s) | Carnes, J. | ||||
Description | In October 2021, groundwater samples for BTEX and TPH-G were collected from 5 monitoring wells at Black Lake Grocery in Thurston County. Water quality results continue to confirm that the near-surface aquifer at Black Lake Grocery is contaminated across the site. Contaminant concentrations have decreased since 1995 but continue to exceed (not meet) established cleanup levels in 4 of the wells. BTEX and TPH-G concentrations decreased significantly after passing through the treatment wall installed near the shore of Black Lake. However, the continued presence of high contaminant concentrations in wells on the downgradient side of the wall and near the shoreline suggests that petroleum products from the site may be migrating to Black Lake. |
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Contact | Jacob Carnes at 360-407-6764 or jacob.carnes@ecy.wa.gov | ||||
Keywords | TPH, BTEX, groundwater toxics, Groundwater Plume, groundwater quality, PBT, groundwater, groundwater contamination, groundwater sampling | ||||
WATERSHED | Water Resource Inventory Area 23 Upper Chehalis | ||||
DATA | Environmental Information Management (EIM) #PMART007 |
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RELATED PUBLICATIONS | Title:
Black Lake Grocery Groundwater Monitoring Results, October 2018 and June 2020: Data Summary Report Black Lake Grocery Groundwater Monitoring Results, June 2017: Data Summary Report Black Lake Grocery Groundwater Monitoring Results, October 2015: Data Summary Report Black Lake Grocery Groundwater Monitoring Results, November 2013 and May 2014: Data Summary Report Black Lake Grocery Groundwater Confirmational Monitoring, August 2011 to May 2012 |
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