Published by Environmental Protection Agency
Phosphorus Critical Source Area (CSA) are where there is a diffuse source of P from agricultural areas and the land is susceptible to losses. This ‘High PIP’ (Rank 1, 2 or 3) is typically due to the presence of poorly draining soils and moderate/high livestock intensity. Target these areas in At Risk water body in which phosphate is the significant issue and farming is the significant pressure.
| License | Creative Commons Attribution 4.0 |
| Created | 2021-04-15 |
| Last Updated | 2025-10-22 |