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Title

A Total Maximum Daily Load Evaluation for Chlorinated Pesticides and PCBs in the Walla Walla River

 
Publication number Date Published
04-03-032October 2004
VIEW NOW A Total Maximum Daily Load Evaluation for Chlorinated Pesticides and PCBs in the Walla Walla River (Number of pages: 208) (Publication Size: 4MB)




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Author(s) Johnson, A., B. Era-Miller, R. Coots, and S. Golding
Description The Walla Walla River is on the 303(d) list as being water quality limited for 4,4’-DDE, 4,4’-DDD, dieldrin, chlordane, hexachlorobenzene, heptachlor epoxide, and PCB-1260 in edible fish tissue. EPA requires the states to set priorities for cleaning up 303(d) listed waters and to establish a Total Maximum Daily Load (TMDL) for each.

This report presents results of a field study that forms the basis for a TMDL evaluation of these chlorinated pesticides, breakdown products, and PCBs in the Walla Walla River drainage. The following TMDL elements are addressed: scope, applicable water quality standards, numerical targets, loading capacity, wasteload and load allocations, margin of safety, seasonal variation, and monitoring plan.
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Keywords toxics monitoring, environmental, fish, 303(d), evaluation, study, river, water, waste, Total Maximum Daily Load, PCBs, pesticide, Environmental Protection Agency, chlorinated
WATERSHED Water Resource Inventory Area 32 Walla Walla
DATA Environmental Information Management (EIM) #AJOH0011

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