Point source nutrient discharges to surface water in the United States Pacific Northwest for 2002
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of total 
nitrogen and total phosphorus discharged to surface waters in the Pacific Northwest region of the United 
States (Hydro Region 17; Major River Basin 7 (MRB7)) during 2002 from individual permitted wastewater …