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Education and changes in residential nonpoint source pollution.

Michael E Dietz1, John C Clausen, Karen K Filchak

  • 1Department of Natural Resources Management and Engineering, University of Connecticut, 1376 Storrs Road, Unit 4087, Storrs, Connecticut 06269-4087, USA. michael.dietz@uconn.edu

Environmental Management
|January 6, 2005
PubMed
Summary

Homeowner education and best management practices (BMPs) significantly improved suburban stormwater quality. Reductions in nitrite + nitrate - N and fecal coliform bacteria were observed, demonstrating effective water pollution control.

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Area of Science:

  • Environmental Science
  • Water Quality Management
  • Urban Hydrology

Background:

  • Urban and suburban areas release pollutants like nitrogen and bacteria into water bodies.
  • Stormwater runoff is a major pathway for nonpoint source pollution from residential areas.
  • Effective strategies are needed to mitigate the impact of suburban development on water quality.

Purpose of the Study:

  • To assess the effectiveness of homeowner education and best management practices (BMPs) in improving suburban stormwater quality.
  • To quantify changes in water quality parameters following the implementation of a targeted intervention program.

Main Methods:

  • A paired watershed design was employed, monitoring control and treatment watersheds.
  • Intervention involved educating homeowners and promoting structural BMPs to reduce nonpoint pollution.

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  • Water quality was analyzed using statistical methods including analysis of covariance (ANCOVA).

    • Main Results:

    • A significant increase in the adoption of BMPs by homeowners was observed (P = 0.001).
    • Stormwater concentrations of nitrite + nitrate - N decreased by 75% (P = 0.001).
    • Fecal coliform bacteria concentrations showed a 127% reduction (P = 0.05), though regression was non-significant.

    Conclusions:

    • Intensive homeowner education and BMP implementation led to measurable improvements in stormwater quality.
    • Specific pollutants, nitrite + nitrate - N and fecal coliform bacteria, were significantly reduced.
    • This approach offers a viable strategy for enhancing water quality in suburban environments.