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Welcome to Water Environment Services
Water Environment Services (WES) provides Wastewater Collection & Treatment and Biosolids Reuse for seven cities and several unincorporated areas in Clackamas County. Stormwater Management, On-Site Sewage Disposal, and Water Quality and Stream Enhancement projects are also coordinated by WES.

WES Bid and Requests for Proposals Information
Current WES Invitations to Bid and Requests for Proposals Information

About WES
Water Environment Services provides wastewater treatment and surface water management services in Clackamas County.

Biosolids Management
Biosolids are the nutrient-rich organic material generated from the wastewater treatment process.

Contact WES

Customer & Financial Services
WES Customer & Financial Services

Frequently Asked Questions
Frequently asked questions about Water Environment Services (WES)

WES Community Outreach & Education Program
WES public information and outreach.

North Clackamas Revitalization Area Sanitary Sewers
Clackamas County Service District No. 1 Assessment District 2009-1 Finalized

WES Press Releases
Current WES Press Releases

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

Sanitary Sewer
WES collects and cleans more than 6 billion gallons of wastewater annually.

Surface Water Management (SWM)

Surface Water Management Agency of Clackamas County (SWMACC)
The Surface Water Management Agency of Clackamas County (SWMACC) provides surface water mangement services to the City of Rivergrove and portions of unincorporated Clackamas County draining into the Tualatin River.

WES Annexation Information
If you are interested in annexing to one of WES Service Districts, or if you wish to discuss the annexation procedure you call 503-742-4567.

SWMACC Development Services
WES assists design professionals with stormwater management and erosion control plans.

Various Water Environment Services forms.

Rules and Specifications
Rules and Specifications for Water Environment Services (WES)

1200-C Documents
1200-C & 1200-CN Documents

Public Sanitary Sewer Extension Guide
Clackamas County Service District No.1

Capital Improvement Projects (CIP)
The Capital Improvement Program plans, designs and builds major capital facilities in the three area Districts.

Erosion Prevention Planning and Design Manual
Erosion control guidelines for development.

North Clackamas Revitalization Area Archived Information

Information for new employees of Water Environment Services.

Source Control and Industrial Pretreatment
Industrial sampling, facility inspections, permitting, enforcement and laboratory analysis.

Speakers Bureau & Tours
WES offers guided tours of its facilities and speakers to community, educational and business groups.

Watershed Health & Watershed Action Planning
Watershed Health

Water Quality Lab

Sustainability newsletter

This collaboration between Clackamas County, garbage companies, commercial composters and food related businesses offers a greener alternative that converts food scraps into valuable compost for home gardens and local agriculture.