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 Office spreadsheet iconmpsat07jun27.xls June 27, 2007 version

PSATcomparisonchart Office spreadsheet iconmpsatcomparisonchart.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 PDF iconmpsatuserguide.pdf July 9, 2007

Data Collection Sheet PDF iconpsatdatacollectionsheet.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.

Agenda PDF iconagenda.pdf

PowerPoint presentations:

The Watershed Treatment Model

The PSAT is a variation of the Watershed Treatment Model. The WTM is available from the Center for Watershed Protection.