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"OpenStreetMap contributors"
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From the site: "The Active Groundwater Level Network contains water levels and well information from more than 20,000 wells that have been measured by the USGS or USGS...
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View within SubmissionGathering Resources...From the site: "The Geographic Information Retrieval and Analysis System (GIRAS) was developed in the mid 70s to put into digital form a number of data layers which were of...-
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View within SubmissionGathering Resources...From the site: "This dataset is a coverage of the physiographic provinces, aquifer outcrops and recharge rates for Tennessee. Each polygon is attributed with its associated...-
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View within SubmissionGathering Resources...From the site: "NHDPlus is a geo-spatial, hydrologic framework dataset envisioned by the US Environmental Protection Agency. The EPA Office of Water, assisted by the US...-
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View within SubmissionGathering Resources...Downloadable data depicting the average annual runoff in the United States from 1951 to 1980; could help to understand and/or predict current and future effects and patterns.-
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View within SubmissionGathering Resources... -