m
m
Line 20: Line 20:
 
Case studies include the following.
 
Case studies include the following.
 
*[http://www.trca.on.ca/dotAsset/26185.pdf Performance Aassessment of a Pond-Wetland Stormwater Management Facility - Markham, Ontario]
 
*[http://www.trca.on.ca/dotAsset/26185.pdf Performance Aassessment of a Pond-Wetland Stormwater Management Facility - Markham, Ontario]
*[http://stormwaterbook.safl.umn.edu/content/case-study-11-stormwater-retention-ponds-maintenance-vs-efficiency Case Study #11: Stormwater Retention Ponds: Maintenance vs. Efficiency]
+
*[http://stormwaterbook.safl.umn.edu/case-studies/case-study-11-stormwater-retention-ponds-maintenance-vs-efficiency Case Study #11: Stormwater Retention Ponds: Maintenance vs. Efficiency]
 
*[http://www.cwp.org/online-watershed-library/cat_view/63-research/69-stormwater Pollutant Removal Dynamics of Three Wet Ponds in Canada] (scroll down page to article)
 
*[http://www.cwp.org/online-watershed-library/cat_view/63-research/69-stormwater Pollutant Removal Dynamics of Three Wet Ponds in Canada] (scroll down page to article)
 
*[http://scholar.lib.vt.edu/theses/available/etd-05302000-16250046/unrestricted/ThesisSBLFinal.PDF Assessing the Nonpoint Source Pollutant Removal Efficiencies of a Two-Basin Stormwater Management System in an Urbanizing Watershed]
 
*[http://scholar.lib.vt.edu/theses/available/etd-05302000-16250046/unrestricted/ThesisSBLFinal.PDF Assessing the Nonpoint Source Pollutant Removal Efficiencies of a Two-Basin Stormwater Management System in an Urbanizing Watershed]

Revision as of 14:12, 1 June 2016

Constructed basins are designed to retain solids and associated pollutants by settling. A typical method for assessing the performance of constructed basins is therefore measuring and comparing pollutant concentrations at the influent and effluent.

An online manual for assessing BMP treatment performance was developed in 2010 by Andrew Erickson, Peter Weiss, and John Gulliver from the University of Minnesota and St. Anthony Falls Hydraulic Laboratory. The manual advises on a four-level process to assess the performance of a Best Management Practice.

  • Level 1: Visual Inspection. This includes assessments for infiltration practices and for filtration practices. The website includes links to a downloadable checklist.
  • Level 2: Capacity Testing. Level 2 testing can be applied to both infiltration and filtration practices.
  • Level 3: Synthetic Runoff Testing for infiltration and filtration practices. Synthetic runoff test results can be used to develop an accurate characterization of pollutant retention or removal, but can be limited by the need for an available water volume and discharge.
  • Level 4: Monitoring for infiltration or filtration practices

Level 1 activities do not produce numerical performance data that could be used to obtain a stormwater management credit. BMP owners and operators who are interested in using data obtained from Levels 2 and 3 should consult with the MPCA or other regulatory agency to determine if the results are appropriate for credit calculations. Level 4, Monitoring, is the method most frequently used for assessment of the performance of a BMP.

Use these links to obtain detailed information on the following topics related to BMP performance monitoring:

Additional information on designing a monitoring network and performing field monitoring are found at this link.

Case studies include the following.


Related pages

Links to pages discussing assessment of other BMPs can be found at this page.