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EPA Office of Water (OW): Nutrient, Sediment, and Pathogens Water Impairments
National dataset consisting of a snapshot of 303(d) Listed Impaired Waters combined with Impaired Waters with TMDLs whose parent cause is Nutrients, Sediments, and Pathogens.... -
EPA Office of Water (OW): Impaired Waters with TMDLs by Causes of Impairment ...
Under Section 303(d) of the Clean Water Act (CWA), states, territories, and authorized tribes, collectively referred to in the Act and here as "states," are required to develop... -
EPA Office of Water (OW): 2002 Impaired Waters Baseline NHDPlus Indexed Dataset
This dataset consists of geospatial and attribute data identifying the spatial extent of state-reported impaired waters (EPA's Integrated Reporting categories 4a, 4b, 4c and 5)*... -
Dearborn GC-MS organic speciation data
Ambient particulate matter organic speciation data from July - August, 2011. This dataset is associated with the following publication: Lynam, M., T. Dvonch, J. Turlington, D.... -
BLM REA COP 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters (wat...
The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under...