Regulation of agricultural drainage to San Joaquin River

Journal Article · Wed Feb 01 04:00:00 EST 1989 · Journal of Irrigation and Drainage Engineering; (USA)

DOI:https://doi.org/10.1061/(ASCE)0733-9437(1989)115:1(29)· OSTI ID:7118868

Johns, G E; Watkins, D A ^[1]

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1. California State Water Resources Control Board, Sacramento (USA)

A technical committee reported on: (1) proposed water quality objectives for the San Joaquin River Basin; (2) proposed effluent limitations for agricultural drainage discharges in the basin to achieve these objectives; and (3) a proposal to regulate these discharges. The costs and economic impact of achieving various alternative water quality objectives were also evaluated. The information gathered by the technical committee will be used by the Regional Board along with other information in their review of the San Joaquin River Basin Water Quality Control Plan and their actions to regulate agricultural drainage in the San Joaquin Valley. The results of the Technical Committee's efforts as reported in Regulation of Agricultural Drainage to the San Joaquin River, August 1987. Based on the available information, the improvement in water quality resulting from implementation of the interim selenium objective and long-term objectives for salts, molybdenum and boron is necessary to provide reasonable protection to beneficial uses. The costs needed to implement these objectives seem reasonable. However, data on the: (1) concentrations of selenium that protect aquatic ecosystems in the basin; (2) concentrations of selenium that protect human consumers of fish and wildlife; and (3) drainage flows and quality produced in and upgradient of the drainage study area need to be developed and reviewed before a long-term selenium water quality objective is implemented. 16 refs., 2 figs., 4 tabs.

• OSTI ID: 7118868
• Journal Information: Journal of Irrigation and Drainage Engineering; (USA), Journal Name: Journal of Irrigation and Drainage Engineering; (USA) Vol. 115:1; ISSN 0733-9437; ISSN JIDED
• Country of Publication: United States
• Language: English

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