Updated Data Now Available through EPA’s Nitrogen and Phosphorus Pollution Data Access Tool

EPA has added updated data in the Nitrogen and Phosphorus Pollution Data Access Tool (NPDAT), a tool intended to help states develop effective nitrogen and phosphorus source reduction strategies. Specifically, the updates include the Facilities Likely to Discharge Nitrogen/Phosphorus (N/P) to Water data layer, which now provides information on nitrogen and phosphorus discharges from 2010 facility monitoring reports with corresponding nitrogen and phosphorus limits from EPA’s Discharge Monitoring Report (DMR) Pollutant Loading Tool. Another other update is the Waters Listed for N/P Impairments and Waters with N/P TMDLs data layers which now reflect data pulled from the Assessment TMDL Tracking and Implementation System (ATTAINS). These layers have been updated from information from 2008 and 2011, respectively.

Click here for NPDAT and the updated data layers.

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