956 resultados para Water quality indexes
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"October 1994."
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"SWS Contract report 429." -- Cover.
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Latest issue consulted: Federal fiscal year 1988.
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Title from caption.
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"IEPA/WPC/83-003X."
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Issues for <1970- > have title: Catalog of information on water data. Index to surface water section.
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"23 April 1987."
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Bibliography: p. 27-28.
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Prepared for the National Commission on Water Quality.
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"August 1997."
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Bibliography: p. 55-57.
Ground-water conditions and well yields in fractured rocks, southwestern Nevada County, California /
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Spine title: Ground-water conditions, well yields in fractured rocks, southwestern Nevada County, CA.