The Minnesota Phosphorus Source Assessment Tool
The Minnesota Phosphorus Source Assessment Tool (PSAT) is used to identify the relative contribution of sources of phosphorus to a lake or stream. It can be used to educate stakeholders about the sources of P in a watershed, and to identify further sources of information and analysis needed to understand and solve phosphorus problems in a watershed.
Download PSAT mpsat07jun27.xls June 27, 2007 version
PSATcomparisonchart mpsatcomparisonchart.xls May 29, 2007 version. Use this file to create a stacked bar graph comparing multiple scenarios from the PSAT.
PSAT User Guide and Documentation mpsatuserguide.pdf July 9, 2007
Data Collection Sheet psatdatacollectionsheet.pdf
"Assessing Watershed Phosphorus Sources" training sessions
Four PSAT training workshops were held in June 2007 in St. Cloud, Alexandria, Park Rapids, and Brainerd, Minnesota.
- Phosphorus Basics pbasics.pdf
- Phosphorus Loss Risk Factors priskfactors.pdf
- Modeling Watershed Phosphorus pmodels.pdf
- Using the Phosphorus Source Assessment Tool aboutpsat.pdf
The Watershed Treatment Model
The PSAT is a variation of the Watershed Treatment Model. The WTM is available from the Center for Watershed Protection.