Annual Reports on Streams


The annual reports on Fairfax County’s streams present summaries of water quality data and assessments of current stream conditions and trends countywide. They document overall stream conditions based on the abundance and diversity of fish and aquatic insects. In addition, the potential human health risk associated with wading or swimming in streams is assessed based on fecal-associated bacteria.

These reports are developed as part of the stream quality assessment program to meet the goals and requirements of the stormwater management program; the Board of Supervisors’ environmental improvement program; and local, state and federal regulations, including the Chesapeake Bay Act, the county's Municipal Separate Storm Sewer System (MS4) Permit and the federal Clean Water Act.

The reports are available either as a complete document or by sections for the convenience of those with slower Internet connections.  They are all in PDF format and are viewable using Adobe Reader.


2007 Annual Report on Fairfax County's Streams

2007 annual report - cover

Cover

Complete Report

 


2006 Annual Report on Fairfax County's Streams

2006 annual streams report

Cover

Complete Report


Acknowledgements and Table of Contents

Executive Summary

Section 1. Introduction

Section 2. Methods

Section 3. Results

Section 4. Watershed Conditions

Section 5. Impaired Waters

Section 6. Bibliography

Section 7. Glossary


2005 Annual Report on Fairfax County's Streams

2005 annual streams report

Cover

Complete Report (without appendices)


Executive Summary

Section 1. Introduction

Section 2. Methods

Section 3. Results

Section 4. Future Efforts

Section 5. References

Section 6. Glossary


Appendix A - D

  • 2001 Stream Protection Strategy Baseline Study Update
  • Benthic Macroinvertebrates Protocols
  • Fish Sampling Protocols
  • Bacteria Monitoring Protocols 

Appendix E - H 

  • Volunteer Monitoring Protocols
  • Impaired Water Bodies
  • Computation of Stratum and Overall Mean and Variances
  • Other Monitoring Effort

 



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