https://github.com/geostreams/gltg/issues/16

2012 Nutrient Model results by SPARROW

https://www.sciencebase.gov/catalog/item/5cbf5150e4b09b8c0b700df3

2002 Nutrient Model Results by SPARROW

Nitrogen output

Phosphorus

 We need to join the table with HUC8 boundary to generate geospatial layer