946 resultados para Deterioration of Water Quality


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Latest issue consulted: 2002.

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Chemical abstracts

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"The Northeastern Illinois Planning Commission's Natural Resources Dept. conducted the lake assessment data collection effort for the six county northeastern Illinois region." -- P. iii.

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"January 1995."

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The establishment of a Total Maximum Daily Load sets the pollutant reduction goal necessary to improve impaired waters. It determines the load, or quantity of any given pollutant that can be allowed in a particular water body. A TDML must consider all potential sources of pollutants whether point or nonpoint. It also takes into account a margin of safety, which reflects scientific uncertainty, as well as the effects of seasonal variation.

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Cover title: Water quality management planning.

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"IPEA/WPC/92-220"--Cover.

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"IEPA/WPC/92-224."

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Designated as Appendix 1, Order 17-13 of the Illinois Dept. of Transportation's Departmental orders.

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"IEPA/WPC/90-168."

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Prepared by Division of Water Pollution Control, Planning and Standards Section.