Nitrogen Pollutant Category
All parameters for total nitrogen, organic nitrogen, total kjedahl nitrogen, nitrite, nitrate, and ammonia are included. Section 3.1.3 of the Technical Users Background Document for the DMR Pollutant Loading Tool describes how the Loading Tool identifies nitrogen parameters and aggregates nitrogen loads.
Search Considerations: The Loading Tool selects pollutant loadings for the Nitrogen category if the loadings are associated with parameter codes in ICIS-NPDES that are on the nitrogen list. This list is available in the Technical Users Background Document for the DMR Pollutant Loading Tool.