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| Title | Quality Assurance Project Plan: TMDL Technical Study: Chlorinated Pesticides and PCBs in the Walla Walla River | |||
| Month-Year Published | July 2002 | |||
| Online Availability |
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| Short Description |
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. A TMDL entails an analysis of how much of a pollutant load a waterbody can assimilate without violating water quality standards. This Quality Assurance Project Plan describes the technical study that will monitor levels of certain pesticides and PCBs in the Walla Walla River and form the basis for a proposal to allocate contaminant loads to sources. (Also see abstract below) | |||
| Publication Number | 02-03-068 | |||
| Author(s) | Johnson, A. and B. Era-Miller | |||
| Print Availability | ||||
| Number of pages | 56 pp. | |||
| Keywords | assessment, chlorinated, environmental, Environmental Protection Agency, fish, PCBs, pesticide, pesticides, plan, quality assurance, quality assurance project plan, river, study, technical, TMDL, Total Maximum Daily Load, water | |||
| Subject Waterbodies |
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| Related Publications | Title | Relationship | ||
| A Total Maximum Daily Load Evaluation for Chlorinated Pesticides and PCBs in the Walla Walla River | similar topic | |||
| Abstract | Long Description |
The Walla Walla River has been listed by Washington State under Section 303(d) of the federal Clean Water Act for non-attainment of the U.S. Environmental Protection Agency (EPA) human health criteria for 4,4′-DDE, 4,4′-DDD, dieldrin, heptachlor epoxide, hexachlorobenzene, chlordane, and PCB-1260 in edible fish tissue. The listing is based on sampling done by the Washington State Department of Ecology in 1992 and 1993. 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. A TMDL entails an analysis of how much of a pollutant load a waterbody can assimilate without violating water quality standards. This Quality Assurance Project Plan describes the technical study that will monitor levels of the above mentioned pesticides and PCBs in the Walla Walla River and form the basis for a proposal to allocate contaminant loads to sources. The study will be conducted by the Ecology Environmental Assessment Program. |
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Copyright © Washington State Department of Ecology. See http://www.ecy.wa.gov/copyright.html.
