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Tsuru Island Japanese Garden

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Environmental Services

Watershed Documents and Forms

Current documents and forms
Stormwater Management Manual

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
Gresham stormwater plant list

Annual Reports

2022
Surface Water and NonPoint Source TMDL program summary
2021
Surface Water and NonPoint Source TMDL program summary
2020
Surface Water and NonPoint Source TMDL program summary
2019
Surface Water and NonPoint Source TMDL program summary
2018
Surface Water and NonPoint Source TMDL program summary
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
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
Transportation winter operations management plan
Wastewater 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

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.
Capital Improvement Program
Contact
For more information contact Keri Handaly at 503-618-2657 or Keri.Handaly@GreshamOregon.gov.

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Resources

Initiatives

Greshamoregon.gov