Title: Review of Management Practices for Controlling the Water Quality Impacts of Potential Pollutants in Irrigated Agriculture Stormwater Runoff and Tailwater Discharges
Abstract: Irrigated agriculture in the San Joaquin River watershed is subject to compliance with TMDLs for selenium, total dissolved salts, organophosphate pesticides (diazinon and chlorpyrifos), boron and oxygen demand (nutrients/algae). The proposed Central Valley Regional Water Quality Control Board irrigated agriculture waiver water quality monitoring program will likely show that irrigated agricultural stormwater runoff and tail water/subsurface drain water discharges cause violations of existing and soon to be developed water quality objectives (standards). As a result, agricultural interests in this watershed also potentially face compliance with TMDLs for nutrients (nitrogen and phosphorus), total organic carbon, unknown-caused toxicity, sediment toxicity, organochlorine (legacy) pesticides (such as DDT, chlordane, toxaphene etc.) and pathogen-indicator organisms. There is need for agricultural interests and the regulatory agencies to approach the development of the TMDLs in an integrated, coordinated effort. This effort should include a comprehensive monitoring/water quality impact evaluation program that addresses the stormwater runoff, tailwater and subsurface drain water discharges for all constituents that are potentially subject to Clean Water Act 303(d) listing. The development of BMPs for the control of agricultural releases/discharges should evaluate the control of all constituents that are potentially subject to future TMDL regulation.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
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Cited By Count: 16
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