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Environmental Services

Watershed Documents and Forms

Stormwater Management Manual

The following documents are effective on January 1, 2020 and include minor revisions that the City has made 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
Gresham stormwater plant list

Annual reports

2020
Surface water
2019
Surface water
2018
Surface water
Groundwater
2017
Surface water
Groundwater
2016
Surface water
Groundwater
2015
Surface water
Groundwater

Stormwater code

Gresham Revised Code
Development Code for Stormwater
Gresham code review of habitat-friendly development practices
Public Works Standards

Permits and management plans

National Pollutant Discharge Elimination System (NPDES) permit documents
Gresham and Fairview NPDES stormwater discharge permit
Gresham stormwater management plan
Gresham and Fairview environmental monitoring plan -- effective July 1, 2016
Monitoring plan appendices
Total Maximum Daily Load (TMDL) plan and associated documents
Gresham TMDL plan (2018-2023)
NPDES Wastewater permit (2014)
Wastewater Treatment Plant air quality permit
Wastewater Treatment Plant 1200Z permit (2018)
Related links
Mercury Minimization Plan
Gresham Revised Code
Gresham Community Development Code

Water Pollution Control Facility permit documents

Gresham Water Pollution Control Facility (WPCF) permit
Underground Injection Control (UIC) management plan 2012-2022
Stormwater monitoring plan plus appendix A and B and appendices C through F
Underground Injection Control (UIC) system-wide assessment 2012
Underground Injection Control (UIC) technical memoranda 2012

Master Plan documents

Retrofit strategy and plan
Fairview Creek master plan
Johnson Creek master plan
Kelly Creek master plan
West Gresham master plan
Capital Improvement Program
Contact
For more information contact Keri Handaly at 503-618-2657 or Keri.Handaly@GreshamOregon.gov.

Connect

Resources

Initiatives

Greshamoregon.gov