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Title

Yakima Railroad Area PCE Contamination: Groundwater Quality Monitoring, 2018-2020

 
Publication number Date Published
22-03-014April 2022
VIEW NOW Yakima Railroad Area PCE Contamination: Groundwater Quality Monitoring, 2018-2020 (Number of pages: 40) (Publication Size: 2318KB)


Acrobat PDF format (Number of pages: 75) (Publication Size: 2MB)
Note: APPENDICES

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Author(s) Gallagher, B. and P. Marti
Description During 2018 through 2020, the Department of Ecology conducted semi-annual sampling of the Yakima Railroad Area (YRRA) groundwater monitoring network. The YRRA is a six-square-mile area located along the railroad corridor in the cities of Yakima and Union Gap. Groundwater within the project area is contaminated with tetrachloroethene (PCE).

Of the 41 wells sampled during 2018-2020, 22 wells (54%) had PCE concentrations above (not meeting) the Model Toxics Control Act (MTCA) cleanup level of 5 ug/L. The maximum PCE concentrations ranged from 5.02 to 26,300 ug/L.

The elevated PCE concentrations primarily occurred in shallow wells at three of the source areas: Goodwill - City of Yakima, Cameron Yakima, and Frank Wear Cleaners. Two of the shallow Remedial Investigation (RI) wells located along the western portion of the YRRA also had elevated PCE concentrations. The source of contamination for the RI wells has not been identified.

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Contact Pam Marti at 360-407-6764 or pmar461@ecy.wa.gov
Keywords TCE, groundwater toxics, Yakima Railroad, YRRA, Model Toxics Control Act (MTCA), vinyl chloride (VC), PCE, toxics cleanup, Remedial Investigation, toxics monitoring, dichloroethene (DCE), Cameron Yakima, Frank Wear Cleaners, NuWay Cleaners, Southgate Laundry, Goodwill Yakima, Washington Central Roundhouse, Fifth Wheel Truck Repair, Tetrachloroethylene (PCE)
WEB PAGE Yakima Railroad Area groundwater performance monitoring
WATERSHED Water Resource Inventory Area 37 Lower Yakima
DATA Environmental Information Management (EIM) #YRRA

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