Environmental Protection and Sustainability
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NPDES – National Pollution Discharge Elimination System

This is a graphic of raindrops.

Runoff from rain storms
carries pollution to local
streams.

Archived Annual Reports

The NPDES program requires urban jurisdictions, such as Baltimore County, to have a discharge permit for their storm drain pipes. Baltimore County prepares an annual report of stormwater related programs and projects targeted to reduce water quality pollution. The report below was completed in 2005 and summarizes programs and data from 2004.

2005 NPDES Annual Report (PDF/ 6.3 MB)

  • Overview (PDF)
    Summary of each component in Baltimore County's NPDES permit and annual report.
  • Table of Contents (PDF)
    Lists each subsection within the main sections and the corresponding page numbers.
  • List of Tables (PDF)
    Lists each table and the corresponding page number.
  • List of Figures (PDF)
    Lists each figure and the corresponding page number.
  • List of Exhibits (PDF)
    Lists each exhibit and the corresponding page number.
  • Section 1 - Stormwater Management Program (PDF)
    Contains information on the number and type of stormwater facilities as well as the acreage of drainage area controlled. This assists in determining watersheds in the County that may need additional stream erosion protection from stormwater.
  • Section 2 - Sediment Control Program (PDF)
    Provides trends in the number of building and grading permits issued and the acreage of disturbed land.
  • Section 3 - Road Maintenance and Recycling Program (PDF)
    Includes an accounting of the Vac-Con Stormdrain cleaning program, the Street Sweeping Program and Recycling programs. Also includes data on the use of fertilizer, pesticide and deicing materials.
  • Section 4 - Watershed Restoration Program (PDF)
    Documents capital restoration projects constructed by EPS and a systematic assessment of the associated pollutant reductions.
  • Section 5 - Illicit Connection Program (PDF)
    Summarizes the detection, investigation, and remediation of illicit connections to the County's stormdrain system.
  • Section 6 - Education Program (PDF)
    Updates the sources for the spatial data used in analyses.
  • Section 7 - Fiscal Analysis (PDF)
    Provides financial information regarding the County's capital, operational and maintenance expenditures related to these NPDES programs.
  • Section 8 - Spring Branch Monitoring (PDF)
    Includes data on Spring Branch which has been a long term monitoring site for Baltimore County. Data includes storm event and baseflow chemical monitoring, continuous discharge and temperature monitoring, stream geomorphological monitoring and biological monitoring.
  • Section 9 - Windlass Run Monitoring (PDF)
    Contains geomorphological data used to evaluate the effectiveness of the recently revised Maryland Stormwater Design Manual.
  • Section 10 - Chemical Monitoring (PDF)
    Provides data on ambient chemical conditions in both chemical concentrations and chemical loads.  This information is used to better target restoration activities and calibrate pollutant load models.
  • Section 11 - Geomorphological Monitoring (PDF)
    Contains the stream channel data to fulfill permit requirements for stream restoration projects and restoration effectiveness monitoring for the NPDES permit.
  • Section 12 - Biological Monitoring (PDF)
    Includes results of macroinvertebrate sampling and fish assemblage monitoring. 
  • Section 13 - BMP Pollutant Load Reduction (PDF)
    Compiles the pollutant load reductions resulting from all the management programs.

Contact Information

Watershed Management and Monitoring
Phone: 410-887-5683
Fax: 410-887-3510
E-mail: watersheds@baltimorecountymd.gov

Revised August 22, 2011

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