979 resultados para summer
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Mimeographed.
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Mode of access: Internet.
An intensive survey of the Big Muddy main stem from Rend Lake to the Mississippi River Summer 1988 /
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"IEPA/WPC/91-56."--Cover.
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"March 1997."
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"IEPA/WPC/95-013."--Cover.
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Performing organization: Illinois Environmental Protection Agency, Bureau of Water, Division of Water Pollution Control.
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"IEPA/BOW/00-001"--Cover.
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"IEPA/WPC/92-053."--Cover.
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"The 1993 Intensive Survey of the Saline River Basin was developed in conjunction with the Illinois Cooperative Intensive Basin Survey Program jointly conducted by IEPA and the Illinois Department of Conservation."
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"IEPA/WPC/93-192."--Cover.
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"IEPA/BOW/02-021."--Cover.
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On cover: Investigations of Illinois surface waters.
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"Final report: project E-3."
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"July 1992."
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"March 1981."