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1Published 1999Subjects: “...Wetland hydrology Indiana....”
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2by Duwelius, Richard F.Subjects: “...Groundwater Indiana Elkhart....”
Published 1992
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3Published 1989Subjects: “...Groundwater Indiana Quality....”
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4by Lake, JamesSubjects: “...Water quality management Indiana....”
Published 1977
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5Published 2002Subjects: “...Hydrogeology Indiana Westville Region....”
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6Published 2002Subjects: “...Hydrogeology Indiana Westville Region....”
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7by Bobo, Linda L.Subjects: “...Water quality Indiana Clay County....”
Published 1982
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8Published 1997Subjects: “...Waste disposal in the ground Indiana Calumet Region (Ill. and Ind.)...”
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9Published 1999Subjects: “...Groundwater Pollution Indiana Gary Region....”
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10by Duwelius, Richard F.“...Ground water quality in the Calumet Region of the northwestern Indiana and northeastern Illinois...”
Published 1996
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11Published 1996“...Geohydrology in northwestern Indiana and the Lake Calumet area of northeastern Illinois...”
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12Published 1993Government Document Microform Book
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