964 resultados para Illinois. Division of Soil and Water Conservation


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"P.O. #541186"--Colophon.

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On cover: Investigations of Illinois surface waters.

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Bibliography: p. 49-50.

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Bibliography: p. 40-41.

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"March 1989."

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"This project was supported by cooperative agreement from the U.S. Dept. of Labor, Bureau of Labor Statistics."

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Bibliography: p. 40-42.

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Bibliography: p. 34-35.

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"The purpose of this report is to fulfill the requirements set forth in Section 303(d) of the Federal Clean Water Act (CWA) and the Water Quality Planning and Management regulation at 40 CFR Part 130."--P. 1.

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"This report was financed in part by a grant from the U.S. Environmental Protection Agency under section 314 of the Clean Water Act."

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"April, 1969."