669 resultados para Rockfill Dams


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"21 February 1991"--V. 1.

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"February, 1986."

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"December, 1986."

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The potentially responsible parties (PRPs) have removed the beaver dams and have collected the sediment samples they need for treatability studies. The treatability studies will establish the correct silt fence to minimize releases of sediment during the actual dredging to occur this fall. The studies will also determine the types and amounts of materials (lime, kiln dust, fly ash, etc.) required to stabilize the sediment, chemically tie up the metals and insure the sediment mixture will bear the weight of the cap on the Interim Storage Cell where the sediment will be placed. The Illinois Environmental Protection Agency (Illinois EPA) anticipates work to be completed by late fall or early winter 2004, if lake and river levels that affect the South Ditch are at their normal seasonal levels.

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Attributed also to abbé Dussaussoy.

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Mode of access: Internet.

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"July 1997"--Vol. 5.

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Exact identification is uncertain; probably Toledo and Ann Arbor Railroad Bridge by the Argus Dam on the Huron River

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Image taken from photograph album containing views of the Huron River. The album contains copyprints of photographs made by George R. Swain

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Original image is color postcard with message to Mrs. Utto Heinze, Fennville, Mich., R.D.#2 from Lester M.