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Linking BMPs to Pollutant Sources: Selecting Effective Treatment Measures

After understanding impairments and pollutant causes, estimate loads and identify critical areas. Select best treatment measures (BMPs) by matching them to pollutants and sources, considering transport, evaluating reduction capability based on cost and practicality.

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Linking BMPs to Pollutant Sources: Selecting Effective Treatment Measures

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  1. Linking BMPs to Pollutant Sources

  2. After impairments are understood, pollutant causes and sources known, pollutant loads estimated, critical areas identified…. it’s time to select the treatment measures – BMPs – that will achieve your goals.

  3. Linking BMPs to Sources • Match BMP to pollutant(s) • Match BMP to source(s) • Consider pollutant transport/delivery • Evaluate load reduction capability • Cost • Acceptability/practicality

  4. Match BMP to pollutant(s)

  5. Match BMP to pollutant(s) adapted from: USDA-NRCS Conservation Practice Physical Effects (CPPE) http://efotg.nrcs.usda.gov/references/public/IN/IndianaCPPE-12-2006-Corrected.xls

  6. Match BMP to source(s)

  7. Consider pollutant transport/delivery BMP interventions in NPS pathways: • Availability/pollutant prevention (e.g., NMP) • Detachment (e.g., conservation tillage) • Transport (e.g., WASCOB) • Delivery (e.g., filter strip, riparian buffer)

  8. Evaluate load reduction capability • Stormwater/Urban (BMP Effectiveness database; Menu of BMPs) • Agriculture (Ag Management Measure document) • Forestry (Forestry Management Measures document) • Mining (Development document for proposed Effluent Guideline for Mining) www.epa.gov/nps

  9. www.epa.gov/owow/nps/agmm/index.html

  10. www.epa.gov/owow/nps/agmm/ index.html

  11. www.bmpdatabase.org/docs.htm

  12. http://www.epa.gov/owow/nps/forestrymgmt/

  13. Sample BMP effectiveness table

  14. Cost • Look at experience in other watershed programs in the region • NRCS cost tables, other programs

  15. Cost http://efotg.nrcs.usda.gov/references/public/IN/Average_Annual_Cost_2007.xls

  16. Acceptability/practicality • Look at what’s worked and what hasn’t • Consider costs/benefits • Property ownership/site access • Look for added benefits • Use a combination of techniques

  17. Rank alternatives

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