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2 datasets found

Federal

National Hydrography Dataset Plus - NHDPlus

U.S. Environmental Protection Agency —

This high-level metadata data document will be supplemented with detailed regional metadata at a later date. The NHDPlusV2 is an integrated suite of application-ready...
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Federal

Estimated Total Nitrogen and Total Phosphorus Loads and Yields Generated within States

U.S. Environmental Protection Agency —

Estimated state-wide total nitrogen (TN) and total phosphorus (TP) loads and yields, as predicted by the 2012 regional USGS SPARROW models.Excess nitrogen and...

2 datasets found

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