946 resultados para Deterioration of Water Quality
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CD-ROM includes corresponding database and GIS datasets.
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Mode of access: Internet.
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Latest issue consulted: 2002.
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Mode of access: Internet.
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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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Mode of access: Internet.
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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.