Groundwater Protection Program
The City, in partnership with the Portland Water Bureau, manages the Columbia South Shore Well Field Wellhead Protection Program.
To protect this valuable drinking water source, the cities of Gresham, Portland and Fairview adopted the same wellhead protection regulations for new and existing businesses using and storing hazardous materials that pose a threat to groundwater.
For questions about the well field protection program contact Clay Walker at 503-618-2487 or Clay.Walker@GreshamOregon.gov.
See larger map of the wellhead protection area.
Report Illegal Dumping and Spills
Report illegal dumping to Laura Dose at 503-618-2578 or Laura.Dose@GreshamOregon.gov.
- Call 911 to report hazardous spills.
- To report spills of non-hazardous materials during regular business hours, call the City’s Operations and Maintenance office at 503-618-2626.
- After hours, call the City’s Public Works on-call notification number: 503-661-3906.
Columbia South Shore Well Field Reference Manual
Best management practices for complying with the Well Field Protection Area requirements
Environmental Protection Agency Hazardous Chemicals Database
Hazardous chemicals regulated under federal environmental protection statute
Well Field Protection Program for Businesses
Preventing groundwater contamination
Programa de Protección de Aguas Subterráneas Para Empresas