Water Environment Services

Annexation

Visit our Annexation Information webpage.

Customer and Financial Services

• Low Income Application for Reduction of Sanitary Sewer Charges
• Direct Debit Authorization Agreement for Sanitary Sewer Charges
• New vendor form

Erosion Prevention and Sediment Control

• WES EPSC Permit Application
• WES Single Family EPSC Guidance and Sample plan
• WES Non-single Family Plan Guidance and Templates
• Erosion Prevention and Sediment Control Planning & Design Manual
• Best Management Practices Drawings

Sanitary Sewer

System Planning

• Sanitary Sewer Master Plan

Land Use and Plan Review

• Service Provider Letter
• Design Standards
• Appendix A – Permitting and Submittal Requirements
• Appendix B – Sanitary Sewer Standard Detail Drawings
• Engineering Agreement – Sanitary Sewer
• Construction Notes – Sanitary Sewer
• Tap-In Fact Sheet
• Surface Water, Storm Drainage and Sanitary Sewer Easement (public) – contact Development Review Staff

Acceptance Forms

• Certificate of Completion (Private Improvements)
• Certificate of Completion (Public Improvements)
• Public Sanitary Sewer Extension Permit
• Service Connection Drawings
• Low Air Pressure / Mandrel Testing
• Manhole Vacuum Testing
• Cost Data Sheet – Sanitary Sewer
• Conveyance of Public Extension
• Warranty Bond
• Performance Bond
• Security Agreement

Source Control and Industrial Pretreatment

• Industrial Pretreatment: Non-residential questionnaire
• Application and Baseline Monitoring Report for Industrial Wastewater Discharge Permit
• Discharge Certification Report
• No Discharge Certification Report
• Application to Discharge Septic Tank Waste at the Tri-City Water Pollution Control Plant
• Total Toxic Organic Certification Report

Stormwater

Land Use and Plan Review 

• Service Provider Letter
• Design standards
• Appendix A – Permitting and Submittal Requirements
• Appendix B – Planting and O&M Guidance
• Appendix C – Stormwater Typical Drawings and Standard Details
• Appendix D – Facility Sizing Methodology and Resources
• Infiltration Testing Report
• Engineering Agreement - Standard
• Engineering Agreement - Private
• Construction Notes – Storm
• Surface Water, Storm Drainage and Sanitary Sewer Easement (public) – contact Development Review Staff 

Completion Forms

• Certificate of Completion (Private Improvements)
• Certificate of Completion (Public Improvements)
• Cost Data Sheet – Storm
• Warranty Bond
• Security Agreement
• Performance Bond

Maintenance

• Public Maintenance Agreement
• Private Stormwater Maintenance Agreement - Single Lot
• Private Stormwater Maintenance Agreement - Partition
• Stormwater Covenants, Conditions and Restrictions (CC&Rs) Recommendations
• Stormdrain Cleaning Assistance Program (SCAP) Available August through October
• Annual stormdrain structure maintenance report

WQRA Buffers

• Buffer Standards
• WQRA Boundary Verification Application
• WQRA Development Permit Application 

Rules and Regulations

• Rules and Regulations

What materials do I need to submit to obtain a WES EPSC permit and a 1200-CN?

• Completed and signed WES EPSC permit application form.
  • Submit a signed original of the WES EPSC application form and 1 pdf copy.
• The Erosion and Sediment Control Plan drawings. The drawings must follow the WES standard template drawings (especially the cover sheet) provided on the WES website.
  • Submit 2 sets of the plan drawings for review.
  • Upon preliminary plan approval submit 2 sets of the plan drawings and electronic pdf files of the complete set of plans. If the electronic pdf file is larger than 8 MB the drawings must be split into multiple files so no one file is larger than 8 MB file size.
• Submit the applicable WES fees. Fees cover the cost of plan review, permitting and inspections. The permit fee varies depending on the amount of disturbed area (see the fee descriptions listed below). Fees are payable directly to WES. 

Fees for WES EPSC Non-single family/1200-CN Permits within WES Service area

Permit Issuance

WES will issue notification of permit approval to the applicant upon final plan approval.

Changes to Plans After Approval or During Project

Changes in information on the application and/or the approved plans must be submitted to WES by (at WES' discretion) email, redlined plans, revised plans or a combination of these.

Template Drawings

Non-Single Family and/or 1 acre and greater of disturbance EPSC Permit Template Drawings  
For non-single family sites and/or those sites that are 1 acre or greater of disturbance and are located inside of Gladstone, Rivergrove or applicable WES service areas (excluding the City of Happy Valley).

Template EPSC Plan Sheets - PDF Sample Plans

• WES 1200-CN Plan Checklist

DEQ is working on creating their own template plans but in the interim you can find specific plan requirements at their website or adapt the template plans and plan checklist created by Clean Water Services for your own use.

• DEQ 1200-C plan requirements (Use for sites five acres or greater)
• Clean Water Services DEQ 1200-CN Template Plans & Plan Checklist (Use for sites less than 5 acres)
• Erosion Prevention and Sediment Control Planning and Design Manual
• Best Management Practices Drawings

Clackamas Water Environment Services' (WES) adopted budget for fiscal year 2025-26 totals $247.6 million. The budget supports WES' mission to protect public health, produce clean water, manage stormwater, and recover renewable resources for nearly 200,000 people across our service area. Major investments include $51.5 million in critical infrastructure projects to maintain safe, reliable service and support future growth.

To fund increasing operating and maintenance costs and continue investing in system reliability, modest rate adjustments have been approved. For most residential customers, the combined monthly wastewater and surface water bill is expected to increase by approximately $1.25 per month (about 2%), keeping WES' rates below the regional average.

The WES Budget Committee reviewed and approved the proposed budget on May 27, 2025, and the Clackamas County Board of Commissioners (serving as the governing body of WES) adopted the budget and updated rates on June 18, 2025 following a public hearing.

Late Fees to Resume for Past-Due Bills Starting August 1, 2025

Beginning August 1, 2025, Clackamas Water Environment Services (WES) will resume assessing late fees on past-due utility bills. As the governing body of WES, the Board of County Commissioners has approved a new late fee structure: 2% of the past-due balance or $5.00, whichever is greater.

Late fees are intended to promote timely payments, reduce the cost of collections, and support the continued delivery of essential sanitary sewer and surface water services.

Avoiding late fees
To avoid late fees, customers are encouraged to pay their monthly bill by the due date listed on their statement. WES offers a variety of tools to help manage your account, including online utility bill payments and paperless billing. Set up online payments and/or enroll in paperless billing.

Need help paying your bill?
If you are experiencing financial hardship, you may qualify for WES’ Low Income Discount Program, which provides discounted rates to eligible households. Learn more or apply.
 

Adopted Rate Adjustments

¹ Wastewater rate reflects Rate Zone 2 retail rate, which includes wastewater treatment, local collection, and legacy debt rate components.
² Area Average reflects rates as of January 1, 2025.

WES Rate Zones

Are you in district? Check your address in CMap.

Construction and development activities can disturb soil, increase erosion, and carry pollutants into nearby properties, storm drains, and local streams. Proper Erosion Prevention and Sediment Control (EPSC) measures help protect water quality and reduce sediment leaving a site.

All development activity within the WES service area must follow EPSC requirements. Projects that disturb 800 square feet or more must obtain a WES EPSC Permit. Projects disturbing 1 acre or more anywhere in Clackamas County must also obtain a Department of Environmental Quality (DEQ) 1200-C or 1200-CN Construction Stormwater Permit. 

Erosion Control Fees

Types of EPSC Permits

The permit you need depends on your project’s size and location. Below is a summary of each permit type. 

WES EPSC Permit

Required for:

• Projects disturbing 800 sq. ft. or more within the WES service district (excluding Happy Valley)

Typical for:

• Single-family homes
• Small commercial or industrial improvements

To apply:

• Submit the WES EPSC Permit Application and required plans

DEQ 1200-CN Permit

Required for: 

• Projects disturbing 1 acre to <5 acres
• Located in Gladstone, Rivergrove, or WES service areas (excluding Happy Valley)
• Issued by WES along with the local EPSC permit.

Typical for:

• Small subdivisions and partitions
• Multi-family construction
• Commercial and industrial projects

To apply:

• Submit the WES EPSC Application or 1200-CN Templates and erosion control plans for WES review. 

DEQ 1200-C Permit 

Required for:

• Projects disturbing 5 acres or more
• Applies within WES service areas, Gladstone, or Rivergrove
• In Happy Valley, this permit is required in addition to the city’s EPSC permit

Typical for:

• Large subdivisions
• Multi-family developments
• Commercial and industrial sites

To apply:

• Submit the DEQ 1200-C application and template-style erosion control plan directly to DEQ.
• Templates available on DEQ’s 1200-C Construction Stormwater webpage. 

EPSC Resources

Planning and Design Manual

The Erosion Prevention and Sediment Control Planning and Design Manual and Best Management Practices Drawings provides detailed information about EPSC practices, materials, and installation guidelines. It was developed in partnership with multiple Clackamas County jurisdictions and Clean Water Services. 

Training

EPSC training is available from private providers. WES does not endorse or recommend any specific training company. 

EPSC Inspections

Inspections help ensure EPSC measures are in place and functioning throughout construction.

Initial Inspection

Required before:

• Single-family homes: Before pouring foundation or footings
• Commercial, industrial, and multi-family: Before any soil disturbance (except installing EPSC measures)

Schedule:

• Single-family: Call 503-742-4720
  • Code 201 – Initial EPSC inspection
  • Code 297 – Final EPSC inspection
• Commercial / Multi-family / Industrial: Call WES at 503-742-4567 and request a development representative

Ongoing Monitoring

WES will conduct periodic inspections during construction.

Final Inspection

Requested once the site has been permanently stabilized. 

Clean water is the biggest lifesaver in human history.

Thanks to advances in producing clean water over the last 200 years, life expectancy in the United States has more than doubled to 78.8 years. Most people take drinking water coming out of taps in our homes for granted. It’s also hard to imagine not being able to flush a toilet to carry wastewater away. The toilets and sewer systems we use today save millions of lives by preventing the spread of deadly diseases that come from dirty water.

At Clackamas Water Environment Services, we provide wastewater treatment services for more than 190,000 customers. 

Each year, our treatment facilities clean more than seven billion gallons of wastewater.  In the process, we convert materials that have long been considered “waste” into energy and natural fertilizer. We operate and maintain five resource recovery facilities, 23 pumping stations and more than 360 miles of pipes. 

Our Facilities

Tri-City Water Resource Recovery Facility (TCWRRF)

Kellogg Creek Water Resource Recovery Facility (KCWRRF)

Hoodland Water Resource Recovery Facility (HWRRF)

Fischer's Forest Park

Brought online: 1971
Fischer’s Forest Park is a small treatment system serving one community. This site supports individuals with a septic system process and is not open for public tours.

Boring

Brought online: 1986
Boring treatment system serves a community of approximately 150 people. The station uses nitrification and ultraviolet light to clean water prior to discharging into the fork of Deep Creek. 

Tour our Facilities

Learn how our technology works to:

• protect the health of your family and the environment
• produce clean water, energy and other useful products
• support economic vitality

Ask questions and tell us about how we can keep you, our valued customer, informed and engaged. Children attending with their parents must be at least 10 years old.

Please complete the Facility Tour Request Form and email it to: WES-AdministrativeSpecialistRequests@clackamas.us

For more information, email wescustomerservice@clackamas.us or call 503-742-4567.

Due to construction and safety restrictions, tour availability may be limited.

Trash it, Don’t Flush it!

Our septage procedures are designed to comply with all applicable District, State and Federal regulations. Septage is regulated by our Rules and Regulations. The Tri-City Water Resource Recovery Facility (TCWRRF) is the only designated receiving facility in WES. Haulers that discharge septage at the TCWRRF are required to have a valid Septic Tank Waste Discharge Permit, which is issued for a three-year period.

Permit Application Process

To apply for a WES Septic Tank Waste Discharge Permit, septage haulers must complete and submit a completed Application for Permit form, current copy of DEQ license for sewage disposal, a $10,000 Surety Bond or Bond Continuation Certificate, a current copy of the DEQ Pumping Truck Inspection Report and three-year permit* fee. The application review process takes approximately 3–5 days after which the WES staff will then issue or deny a septage discharge permit.

Septic Tank Waste Discharge Permit application can be downloaded online. For additional information, contact WES Industrial Pretreatment Program at 503-557-2834.

* WES Septic Tank Waste Discharge Permit is a three (3) year permit, however, surety bonds, DEQ license, and DEQ Truck Inspection are issued annually. An updated copy of these items must be submitted to WES Septage Program annually.

Sources

WES accepts septage originating from within Clackamas, Multnomah and Washington Counties. City, State, and Federal regulations prohibit septage haulers from discharging industrial process wastes at the TCWRRF.

Septage loads are accepted Monday through Friday (except on holidays) between 6 a.m. and 3 p.m.

What are biosolids?

The wastewater treatment process separates solids and water, after which clean and disinfected water is discharged to a neighboring water body, the solids are carefully processed in anaerobic digesters to meet state and federal regulations. This further processing converts the dewatered solids into a useful, slow-release fertilizer, which contains a range of plant-essential nutrients such as nitrogen, phosphorus, sulfur, and potassium. Biosolids also contain small amounts of other important minerals such as magnesium, manganese, iron, zinc and calcium. Not usually found in commercial fertilizers.

WES currently recycles biosolids for beneficial use on dryland wheat farms in Eastern Oregon. Biosolids add valuable organic matter to the soil as a beneficial amendment. Organic matter provides a food source for soil microbes, increases the ability of the soil to hold water, and improves soil structure.

In addition, biosolids provide climate benefits. They capture and store carbon in the soil, and they reduce the need for commercial fertilizers, which are produced by a fossil fuel-intensive process.

• Water Environment Services Biosolids Management Plan
• Fact Sheet - Biosolids: A Beneficial Resource

A petitioner needs to complete the Annexation Packet for annexing property into a service district. 

The Annexation Packets are available below and also by calling 503-742-4567. Once you have completed the Annexation Packet return it to our office. The Annexation Packet is then filed with Clackamas County Elections. The Elections office requires two checks to accompany boundary change applications, one to Clackamas County for the application fee and the second to Metro for the mapping fee.

Clackamas County Service District No. 1

CCSD#1 provides sanitary sewer and surface water services to the North Clackamas Service Area (NCSA) in unincorporated urban Clackamas County, north of the Clackamas River and east of Oatfield Road. Residents of the City of Happy Valley are retail customers of the district.

Clackamas County Service District No. 1 Annexation Packet

Tri-City Service District (TCSD)

The TCSD primarily provides regional collection and wholesale sanitary sewer treatment services. The TCSD boundaries coincide with those of the partner cities of Gladstone, Oregon City and West Linn. Property owners must first annex to one of the member cities, then to TCSD. Only those parcels in one or another of the cities can receive sanitary sewer service.

Tri-City Service District (TCSD) Annexation Packet

We administer sanitary sewer, surface water management, and erosion control programs in urban areas of Clackamas County.

Plan review and permitting are part of the broader land use and permitting process in unincorporated Clackamas County, the City of Happy Valley and Rivergrove. We review and approve all public and private sanitary, storm and erosion control plans for development activities such as:

• Any activity that requires a building permit: construction of structures, roadways and utilities
• Grading or excavating
• Land division, including subdivisions, land partitions and lot line adjustments

Annual Reports

• 2024 Annual Report
• 2023 Annual Report

Newsletters

• October 2025
• July 2025
• April 2025
• January 2025
• October 2024
• July 2024
• April 2024
• January 2024