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Title

Montesano Groundwater Investigation of Leaking Underground Storage Tanks: September 2008 and April 2009

 
Publication number Date Published
09-03-056November 2009
VIEW NOW Montesano Groundwater Investigation of Leaking Underground Storage Tanks: September 2008 and April 2009 (Number of pages: 75) (Publication Size: 583KB)




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Author(s) Marti, P.
Description Groundwater samples for BTEX, TPH-G, and VOCs were collected in September 2008 and April 2009 from 25 monitoring wells in downtown Montesano.

Analytical data show the surficial aquifer is contaminated with petroleum products, primarily from three source areas: Whitney’s Inc./Key Bank (Sterling), Tony’s Short Stop/Grays Harbor Grange, and Brumfield-Twidwell. Petroleum contamination from Whitney’s Inc. and Tony’s Short Stop has possibly co-mingled to form a large plume across downtown Montesano.

Low concentrations of chlorinated compounds have also been detected in some wells at Key Bank (Sterling) and Grays Harbor Grange, which may indicate the presence of VOC-contaminated plumes in these parts of the study area.
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Contact Joan LeTourneau at 360-407-6764 or jlet461@ecy.wa.gov
Keywords Model Toxic Control Act, Grays Harbor, wells, river, water, toxic, petroleum, leaking underground storage tanks, groundwater, chlorinated
WATERSHED Water Resource Inventory Area 22 Lower Chehalis
DATA Environmental Information Management (EIM) #PMART004

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