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Search for "Nitrogen Water Quality" - The top results (relevance sort) are listed below:

	48 Results beginning with... Water Quality Status Dashboard Public Water Supply Water Sources Type A Future Public Water Systems (2004)
$\"ArcGIS$	Esri Maps & Data Group (Recommended for Layer Package downloads) 0 Results All ArcGIS Online content 4 Results beginning with... Nitrogen Water Quality Nitrogen Water Quality Assessments Total Nitrogen, Water Quality Monitoring
$\"data.gov\"$	1 Result Geochemical data for water, sediment, and biota in Lake Combie, California, 2017-2021

NCSU Data Collection

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Air Pollution, Air Quality, Forests, Nitrogen (Water Quality)

Important

Legacy denotes outdated data. A more recent version likely exists. Consider an "External Data Source" option linked above, or click the Collection link for updated source options.

Title	Date	Collection	Extent	Scale	MD
CMAP: Nitrogen-saturated Forests of the Conterminous U.S. Legacy	1998	C-MAP	Conterminous United States	1:1,000,000
CMAP: Nitrogen-saturated Forests of the Conterminous U.S. Legacy	1998	C-MAP	Conterminous United States	1:2,000,000

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