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Septic Systems

Water Environment Services (WES), a department of Clackamas County, issues all septic system permits within unincorporated areas of Clackamas County.

The onsite wastewater treatment systems program is designed to regulate the installation, repair, and maintenance of septic systems on homes and businesses not served by community sewer systems. Onsite wastewater treatment systems must be designed, installed, and maintained for the following reasons:

1. To protect the groundwater aquifer and surface waters from pathogen and nitrogen contamination.
2. To protect the health of the populace by properly treating and disposing of disease causing human waste.

150 Beavercreek Road, Oregon City, OR 97045
(503) 742-4740, Fax (503) 742-4247


Soil Onsite Evaluations


Change In Use/Increased Flow

Failing/Malfunctioning Septic Systems

Construction Permits


Other Forms

Frequently Asked Questions

Septic Fees Schedule

Rules & Specifications

Email Septic Questions


Content provided by WES

Similar topics: environmental services water