Contents
Stormwater pond assessment procedure
The municipal separate storm sewer system (MS4) General Permit requires permittees to develop procedures and a schedule to determining the total suspended solids (TSS) and total phosphorus (TP) treatment effectiveness of all municipally owned/operated stormwater ponds (MS4 General Permit Part III.D.6.d.). The schedule to assess ponds can extend beyond the current MS4 General Permit term. The schedule must be based on measurable goals and priorities that you have established for your community.
Resources
Fact sheets and guidance documents
- Assessing the performance of stormwater ponds - MPCA overview of stormwater pond performance assessment
- U of M Online Manual for assessing the performance of, and schedule maintenance for, stormwater treatment practices - the University of Minnesota's Online Manual for assessing and maintaining stormwater treatment practices
- U of M Online Manual for Developing an Assessment Program - Section of the University of Minnesota's Online Manual specifically related to the types of stormwater pond assessment programs and how to develop an assessment program for each
Example procedures
- File:Stormwater Pond TP-TSS Effectiveness Procedures - West St. Paul.pdf - City of West St. Paul's procedures for determining the effectiveness of TSS and TP removal
- File:Stormwater Pond TP-TSS Effectiveness Procedures - Oakdale.docx - City of Oakdale's procedures for determining the effectiveness of TSS and TP removal