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EnviroAtlas - 303(d) Impairments by 12-digit HUC for the Conterminous United States
This EnviroAtlas dataset depicts the total length of stream or river flowlines that have impairments submitted to the EPA by states under section 303(d) of the Clean Water Act.... -
EnviroAtlas - Agricultural Water Demand by 12-Digit HUC for the Conterminous United States
The national agricultural water demand metric provides insight into the amount of water used for agricultural irrigation in the contiguous United States. The estimates are... -
EnviroAtlas - Atmospheric Nitrogen and Sulfur Deposition by 12-digit HUC for the Conterminous United States (2017)
This EnviroAtlas dataset includes annual nitrogen and sulfur deposition within each 12-digit HUC subwatershed for the year 2017. Values are provided for total oxidized nitrogen...
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