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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

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City of Portland NDPES MS4 2015 Permit Renewal Application

Permit Renewal Submittal (2015) 

Links to the City of Portland and Port of Portland renewal submittals are provided below. 

2015 Permit Renewal Submittal

Included within the City of Portland Section Part 1:  

I.     Overview of Permit Renewal Submittal                                 

II.    Public Review and Comment on the Proposed Stormwater Management Plan

III.   Proposed Stormwater Management Plan                                        

IV.   Pollutant Load and Source Information (including Non-Stormwater Discharges Evaluation)

V.    Water Quality Trend Analysis                                                  

VI.   Benchmarks (Methodology and Assumptions, Results) 

VII.  Program/SWMP Evaluation and Update                                  

VIII. 303(d) Evaluation                                                                                  


Maps Appendix

Note that maps provide combined information for both co-permittees.

Map A: Zoning (including Public Parks and Open Spaces)

 And Runoff Coefficients (Map 1, Map 2, Map 3, Map 4)

Map B: Major Structural Controls (Map 1, Map 2, Map 3, Map 4)

Map C: Population Density and Projected Growth (Map 1, Map 2, Map 3, Map 4)

Map D: Municipal Storm Sewer System Outfalls (Map 1, Map 2, Map 3, Map 4)

Map E: NPDES Permits, Landfills and Municipal Waste TSDs (Map 1, Map 2, Map 3, Map 4)

NPDES Permit Holders (table)

Interim Evaluation Report (2006)

As required by the current (2005) permit, the Portland co-permittees submitted an Interim Evaluation Report (IER) to DEQ in May 2006.  The IER includes the SWMPs that the co-permittees are currently implementing, other required information, and maps similar to those updated in the 2008 renewal submittal.

I.   Stormwater Management Plan Executive Summary

II.  Public Review And Comment on the Stormwater Management Plan

III. Stormwater Management Plan

IV. Development And Evaluation of the Stormwater Management Plan (Non-stormwater discharges   evaluation, benchmarks, monitoring)



NPDES Permit Holders (table)

Stormwater-Related Programs

  • BES Stormwater Related Programs (Sustainable Stormwater Management Program (includes Green Streets policy and reports), Clean Rivers Education Program, Watershed Revegetation Program, Industrial Stormwater Program)
  • Maintenance Inspection Program (for private stormwater management facility operations and maintenance) 

Stormwater-Related City Code