Stormwater Management Program

Lane County’s Stormwater Management Program was created in the early 2000s' to comply with Phase II of the National Pollutant Discharge Elimination System (NPDES). The NPDES is a federal permit, under the Clean Waters Act, that requires operators of municipal separate storm sewer systems (MS4s) to implement best management practices to prevent contaminants from reaching our streams via stormwater runoff.  The Phase II permit requires all affected municipalities to create and implement a Stormwater Management Program (SWMP) which addresses 6 Minimum Control Measure that collectively result in significant reductions of pollutants discharged into waterbodies. These 6 Minimum Control Measures include:

  1. Public Education and Outreach – This is how we inform residents, businesses, and industries about urban stormwater runoff and pollution prevention.

  2. Public Participation and Involvement – This area involves the public in the stormwater planning process.

  3. Illicit Discharge Detection  – This addresses illegal or illicit dumping of pollutants into the County stormwater system, whether accidental or intentional.

  4. Construction Site Runoff Control – This is how we work with contractors and developers where land clearing or construction may result in erosion, sedimentation, and soil loss.

  5. Post-Construction Site Runoff Control – This segment ensures that new developments “build in” features (such as bio-swales) continuously manage water quality in the future.

  6. Pollution Prevention and Good Housekeeping for Municipal Operations – This assesses the County’s own maintenance practices and policies to ensure that work crews use the best practices to minimize pollution in their everyday tasks.

In Lane County the MS4 Permit area is generally around the Eugene/Springfield area as shown in the map available at this link. The County works closely with the Cities of Eugene and Springfield on stormwater issues within the urban growth boundary (UGB). For more information on local stormwater programs please visit their websites.

The County's Stormwater Management Plan (SWMP) can be found here:
​          2004 SWMP
         2011 Draft SWMP*

*Draft 2011 SWMP not fully adopted by DEQ in anticipation of the new NPDES MS4 Phase II general permit. The County is currently in the process of updating the SWMP to conform to our new MS4 Phase II general permit.

Need more information?

         Mauria Pappagallo, Water Resources Coordinator