Title | Montesano Groundwater Investigation of Leaking Underground Storage Tanks, October 2005 and March 2006 |
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Montesano Groundwater Investigation of Leaking Underground Storage Tanks, October 2005 and March 2006 (Number of pages: 30) (Publication Size: 332KB)
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Author(s) | Marti, P. | ||||
Description | Groundwater samples for BTEX, TPH-G, and VOCs were collected in October 2005 and March 2006 from 20 monitoring wells in downtown Montesano to determine the lateral extent of contamination in the surficial aquifer. High concentrations of gasoline-range petroleum hydrocarbons were detected in wells from three source areas: Tony’s Short Stop/Grays Harbor Grange, Key Bank (Sterling)/Whitney’s Inc., and Brumfield-Twidwell. Benzene exceeded the MTCA Method A cleanup level of 5 ug/L in eleven wells, with concentrations ranging from 7.2 to 8400 ug/L. TPH-G exceeded the cleanup level of 800 ug/L in seven wells (990 to 78,000 ug/L). Tetrachloroethene exceeded the cleanup level of 5 ug/L in two wells. |
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Contact | EAP Publications Coordinator at 564-669-3028 or EAPpubs@ecy.wa.gov | ||||
Keywords | Model Toxic Control Act, samples, Grays Harbor, wells, tanks, toxic, leaking underground storage tanks, groundwater | ||||
WATERSHED | Water Resource Inventory Area 22 Lower Chehalis | ||||
DATA | Environmental Information Management (EIM) #PMART004 |
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RELATED PUBLICATIONS | Title:
Montesano Groundwater Investigation of Leaking Underground Storage Tanks: September 2008 and April 2009 Montesano Groundwater Investigation of Leaking Underground Storage Tanks, October 2007 and April 2008 Montesano Groundwater Investigation of Leaking Underground Storage Tanks, October 2006 and March 2007 Montesano Groundwater Investigation of Leaking Underground Storage Tanks, October 2004 and March 2005 Quality Assurance Project Plan: Montesano Groundwater Investigation of Leaking Underground Storage Tank Sites. |
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