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Watershed Documents and Forms
Stormwater Management Manual documents
The following documents are effective on January 1, 2023 and include minor revisions to the Stormwater Management Manual and related documents.
- Stormwater Management Manual
- Definitions (Appendix A)
- Residential Guidance (Appendix B)
- Erosion Control Manual (Appendix C)
- Sizing Methods (Appendix D)
- Infiltration Testing (Appendix E)
- Soil and Mulch Specs (Appendix F)
- Planting (Appendix G)
- Typical Details (Appendix H)
Additional resources
National Pollutant Discharge Elimination System (NPDES) permit documents
- Gresham and Fairview NPDES stormwater discharge permit 2021-26
- Gresham stormwater management plan
- Gresham and Fairview environmental monitoring plan 2022
- Monitoring plan appendices
Total Maximum Daily Load (TMDL) plan and associated documents
- Gresham TMDL plan (2023-2028)
- NPDES Wastewater permit
- Wastewater Treatment Plant air quality permit
- Wastewater Treatment Plant 1200Z permit
Related links
Gresham Water Pollution Control Facility (WPCF) permit
Underground Injection Control (UIC) management plan 2022-2032
Environmental monitoring plan 2022 and monitoring plan appendices
Underground Injection Control (UIC) system-wide assessment map 2022
Underground Injection Control (UIC) emerging pollutant evaluation 2022
- Stormwater Master Plan
- Appendix A1: Kelly Creek (Modeled capacity deficiencies)
- Appendix A2: West Gresham
- Appendix A3: Johnson Creek
- Appendix B: Hydrologic inputs and results tables
- Appendix C: Hydraulic results tables
- Appendix D: List of medium and low priority capacity deficiencies
- Appendix E: CIP fact sheets / existing city
- Appendix E: Springwater
- Appendix E: Pleasant Valley
- Appendix F: Unit cost tables
Review all of our Water Services Master Plans.
Contact
For more information contact Keri Handaly at 503-618-2657 or Keri.Handaly@GreshamOregon.gov.