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Subjects
Aquifers, Groundwater, Environmental aspects, Fertilizers, Nitrates, Pesticides, Saline waters, Water quality, Water table, Water-supply, Watershed hydrologyPlaces
Indiana, Brown Ditch Region, Brown Ditch Region (Porter County), Maryland, Porter County, VincennesID Numbers
- OLID: OL3516177A
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| April 30, 2008 | Created by an anonymous user | initial import |