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Title

PCB Monitoring at Walla Walla and College Place Wastewater Treatment Plants, 2006-07

 
Publication number Date Published
07-03-046October 2007
VIEW NOW PCB Monitoring at Walla Walla and College Place Wastewater Treatment Plants, 2006-07 (Number of pages: 50) (Publication Size: 1419KB)




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Author(s) Lubliner, B.
Description The Department of Ecology monitored polychlorinated biphenyls (PCBs) from the Walla Walla and College Place Wastewater Treatment Plants (WWTPs) during 2006-2007. The goal was to better characterize PCB loading as discussed in the 2005 Total Maximum Daily Load (Water Cleanup Plan) for the Walla Walla River watershed.

The study findings indicate effluent concentrations are on track in meeting the EPA human health criterion. Both WWTPs are reducing PCB concentrations in influent to effluent samples by two orders of magnitude.

Four influent pipelines to the Walla Walla WWTP were assessed for PCB concentrations, and the relative importance of each is discussed.
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Contact Joan LeTourneau at 360-407-6764 or jlet461@ecy.wa.gov
Keywords wastewater treatment plant, toxics monitoring, flow, basin, river, water, monitoring, Total Maximum Daily Load, PCBs, Environmental Protection Agency
WATERSHED Water Resource Inventory Area 32 Walla Walla
DATA Environmental Information Management (EIM) #BRWA0002

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Walla Walla Watershed PCBs, Chlorinated Pesticides, Fecal Coliform, Temperature, pH, and Dissolved Oxygen Total Maximum Daily Load Water Quality Implementation Plan

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Walla Walla River Chlorinated Pesticides and PCBs Total Maximum Daily Load (Water Cleanup Plan): Submittal Report