Water Environment Services

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

This revised version of the manual was created in partnership with the cities of Gladstone, Happy Valley, Lake Oswego, Milwaukie, Oregon City, West Linn, Wilsonville and Oak Lodge Sanitary District and Clean Water Services.

There is an order form available for those interested in obtaining a copy of this document on CD.

Download the complete document in PDF format.

• Table of Contents
• Chapter 1: Background
• Chapter 2: Erosion Processes
• Chapter 3: Erosion Control Planning
• Chapter 4: Erosion and Sediment Control Measures and BMP's
• Chapter 5: Pollution Control Measures and BMP'S
• Chapter 6: Inspection and Maintenance
• Appendix A
  • Grading & Erosion Control Information
  • Erosion Control Notes
  • Erosion and Sediment Control Plan Symbols
• Appendix B
  • Erosion Control Monitoring Form
  • Inspector Checklist For Erosion Control
• Appendix C
  • Metric Conversion Table
  • Slope Conversion Table
  • Seed or Fertilizer Hydraulic Application Table A-1
  • Wood Fiber Mulch Hydraulic Application Table C-1, C-2
  • Hydraulic Application Worksheet
  • Example Mulch/Seed Worksheet
• Appendix D
  • Acronyms
  • Glossary of Terms
  • References

BMP Plan Symbols

Detail Drawings

• Detail drawing 4-1 Matting - Slope Installation
• Detail drawing 4-2 Matting - Channel Installation
• Detail drawing 4-3 Plastic Sheeting
• Detail drawing 4-4 Check Dam - Rock
• Detail drawing 4-5 Check Dam - Bio-filter Bags
• Detail drawing 4-6 Diversion Dike/Swale
• Detail drawing 4-7 Outlet Protection - Rip Rap
• Detail drawing 4-8 Outlet Protection - Stilling Basin
• Detail drawing 4-9 Pipe Slope Drain
• Detail drawing 4-10 Surface Roughening - Cat tracking
• Detail drawing 4-11 Surface Roughening - Stair Stepping/Grooving
• Detail drawing 4-12 Bio-Filter Bags
• Detail drawing 4-13 Construction Entrance
• Detail drawing 4-14 Filter Berm
• Detail drawing 4-15 Inlet Protection Type 1
• Detail drawing 4-16 Inlet Protection Type 2
• Detail drawing 4-17 Inlet Protection Type 3
• Detail drawing 4-18 Inlet Protection Type 4
• Detail drawing 4-19 Inlet Protection Type 5
• Detail drawing 4-20 Inlet Protection Type 6
• Detail drawing 4-21 Oak Mats
• Detail drawing 4-22 Sediment Basin
• Detail drawing 4-23 Sediment Fence
• Detail drawing 4-24 Sediment Trap
• Detail drawing 4-25 Sidewalk Subgrade
• Detail drawing 4-26 Tire Wash
• Detail drawing 4-27 Wattles

Clackamas County Development Agency
Clackamas County Service District No. 1

Program objectives

The purpose of the North Clackamas Revitalization Area (NCRA) Sewer Assessment Safety Net Program (Program) is to provide grants to low income homeowners who live within Assessment District 2009-1 for the recently completed NCRA sewer project. The objective of the Program is to reduce financial hardship to those homeowners with an inability to make a payment on their sanitary sewer assessment. Those qualifying for the Program will receive a grant paying for the principal amount of the sewer assessment levied against their property during the year in which they are approved for the program.

The amount and availability of funds for the program is subject to approval of the Agency's budget for the 2018-19 fiscal year, by the Clackamas County Board of Commissioners acting as the Clackamas County Development Agency Board. The Board may elect to change the amount of funds available to the program, which would affect the number of grants awarded, or could direct the Agency to not implement the program.

The Program does not pay for system development charges, on-site system decommissioning or repairs, other connection charges, or monthly sewer fees. Homeowners should contact Water Environment Services, 503-742-4567, for information on available assistance programs for these costs and fees.

Eligible properties

Grant funds are limited and will be made on a first-come, first-served basis to homeowners living in the NCRA who meet Program qualifications and have received notice of a sewer assessment from CCSD#1. The order by which applications will be reviewed will be determined by the date by which a completed application form, including all required documentation is received.

Current basic safety net grant program eligibility requirements

• Applicant must apply to pay the sewer assessment in installments.
• Applicant must own or be buying the residential property.
• Owner must reside on property. Rental properties are not eligible.
• The property must be subject to an assessment from CCSD#1 for Assessment District 2009-01.
• Annual household income may not exceed 200% of the most recently published poverty guidelines, based on household size, except one (1) and two (2) person households, whose income may not exceed 200% of the federal poverty level for a three (3) person household.
• Federal Poverty Guidelines for 2018 are:

  Total Household Size	Maximum Annual Gross Income (200% of the federal poverty level)
  1	41,560
  2	41,560
  3	41,560
  4	50,200
  5	58,840
  6	67,480
  7	76,120
  8	84,760

• Net household assets, excluding the primary residence and its contents, and two primary vehicles, may not exceed $35,000.
  **Updated from May 9, 2016 notice.

What are the limits of the Safety Net Program?

Program funds are limited to those applicants who qualify on a first-come, first-served basis. Program funds each fiscal year are subject to budget approval and may not be sufficient to cover all eligible applicants.

Applicants receiving a safety net grant will need to recertify their eligibility each calendar year by June 30th. In subsequent years, applicants receiving a safety net grant will need to recertify their eligibility each calendar year by April 30th. Applicants that no longer meet income, asset or other eligibility requirements will become ineligible to receive a sewer safety net grant. Applicants may reapply in future years if they again fall within eligibility guidelines. Grant program money which becomes available due to previous applicants becoming ineligible will then become available on a first-come, first-served basis to new applicants.

The applicant will need to complete and return the application form, along with required documentation, by the specified date. The full application will require proof of income and assets such as recent tax returns, payment stubs and bank statements. If the full application is approved, the applicant will be eligible for a sewer assessment grant, subject to the availability of funds on a first-come, first-served basis, which will pay the principal amount of the applicant's assessment during the calendar year.

What happens if I can't pay the interest amount of the assessment?

Any unpaid portion of the assessment will continue to accrue interest on the unpaid balance.

Grant approval

Grant applications are subject to final approval by the Development Agency Manager.

Clackamas Water Environment Services' (WES) proposed 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 are proposed. 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 will meet on May 27, 2025, to review and approve the proposed budget. Following the committee's approval, the Board of County Commissioners (serving as the governing body of WES) will hold a public hearing and consider adoption of the budget and rates in June 2025.

Proposed 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.

Development activity can remove soil cover and increase the site’s susceptibility to erosion. This erosion, and the pollutants that can come from construction debris, can have an adverse impact on adjoining properties, the public storm drainage system and the health of our local streams. With the proper use of erosion prevention and sediment control (EPSC) measures, movement of pollutants and soil off of the site can be prevented and minimized

All development related activity within WES service districts is required to provide erosion prevention and sediment control (EPSC) measures as applicable. Sites which disturb 800 square feet or more are required to obtain Erosion Prevention and Sediment Control permit from WES. Also, all development activity within Clackamas County which disturbs 1-acre or greater is required to obtain a Department of Environmental Quality (DEQ) 1200-C Construction Stormwater (Erosion Control) Permit or a 1200-CN Permit.

Erosion Control Fees

Types of Erosion Prevention and Sediment Control Permits

Depending on the location, type and size of the development project, different EPSC permits and plans may be needed. The table below is a guide to help determine what is required. Following the table are descriptions of each of the permit types

WES Erosion Prevention and Sediment Control Permit

A WES EPSC Permit is required if the development activity disturbs 800 sq. ft. or more within the WES service area, excluding the city of Happy Valley. In order to obtain a WES EPSC Permit, please complete the WES EPSC Permit Application and plans as specified in the application. Typically this permit is issued for residential construction and small commercial/industrial additions and improvements.

Erosion Control 1200-CN Permit

For those sites that are 1 acre to less than 5 acres of disturbance and are located inside of Gladstone, Rivergrove, or applicable WES service areas (excluding the City of Happy Valley), a Department of Environmental Quality (DEQ) 1200-CN Construction Stormwater (Erosion Control) Permit will be issued by WES along with the WES EPSC permit. To obtain a 1200-CN permit the applicants must submit the required WES EPSC Permit application and erosion control plans to WES for review and approval. Download the WES EPSC Application or 1200-CN Templates. Typically the 1200-CN permit is issued for small subdivisions, partitions, multi-family, commercial and industrial projects.

Erosion Control 1200-C Permit

For those sites that are 5 acres or more of disturbance within WES’ applicable service areas, Gladstone or Rivergrove, a Department of Environmental Quality (DEQ) 1200-C Construction Stormwater (Erosion Control) Permit is required in addition to the local WES EPSC permit. For sites within Happy Valley a DEQ 1200-C permit is required in addition to the local Happy Valley EPSC permit. To obtain a 1200-C permit the applicant must submit the required 1200-C application and template style erosion control plans to DEQ for review and approval. The DEQ 1200-C Templates are available from DEQ's 1200-C Construction Stormwater General Permit webpage. Typically the 1200-C permit is issued for large subdivisions, multi-family, commercial and industrial projects.

Erosion Control Resources

Erosion Prevention and Sediment Control Planning and Design Manual

The purpose of the Erosion Prevention and Sediment Control Planning and Design Manual and Best Management Practices Drawings is to provide a comprehensive and detailed approach towards controlling erosion on construction sites. It includes information regarding materials and installation practices. This manual was created in partnership with multiple jurisdictions in Clackamas County and with Clean Water Services in Washington County.

Erosion Prevention and Sediment Control Training

Training in proper selection, installation and maintenance of EPSC measures is available from private sources. WES does not approve or recommend any private training companies. 

Erosion Control Inspections

An initial erosion control inspection is required as part of the construction of a single family home, and shall be completed and approved prior to the contractor pouring the foundation or footings. All non-single family projects such as a commercial, industrial or multi-family shall have the Initial inspection completed and approved prior to any soil disturbance except for the installation of erosion control devices. Permittees must call WES to schedule the initial inspection. Monitoring inspections will occur periodically throughout the construction. A final erosion control inspection must be requested by the permittee once the site has been permanently stabilized.

• Single Family Residences
  To schedule a single family initial or final erosion control inspection use your building permit number and call Clackamas County automated inspection request line at 503-742-4720. Use code 201 for initial erosion control inspections and 297 for erosion control final inspections.
• Commercial and Other
  To schedule an initial or final erosion control inspection for commercial, multi-family or industrial project call the WES main office number at 503-742-4567 and request to talk with a development representative.

Watershed Action Plans help to improve water quality and restore, enhance and protect our watersheds. They are basin-specific strategies that prioritize activities and investments in watershed management.

How Well Do Our Watersheds Function?

Kellogg-Mt. Scott

• Complete Document
• Table of Contents and Acronyms
• Executive Summary
• Chapter 1
• Chapter 2
  • Chapter 2 Figures
• Chapter 3
• Chapter 4
  • Chapter 4 Figures
• Chapter 5 Watershed Assessment for Kellogg-Mt. Scott
  • Figure 5-1 Kellogg/Mt. Scott Assessment Map
  • Figure 5-2 Kellogg/Mt. Scott Assessment Map
  • Figure 5-3 Kellogg/Mt. Scott Assessment Map
  • Figure 5-4 Kellogg/Mt. Scott Assessment Map
  • Figure 5-5 Kellogg/Mt. Scott Assessment Map
  • Figure 5-6 Kellogg/Mt. Scott Assessment Map
  • Figure 5-7 Kellogg/Mt. Scott Assessment Map
  • Figure 5-8 Kellogg/Mt. Scott Assessment Map
• Chapter 6 Action Plan Summary
• Chapter 6 Action Plan Description Sheets
• Appendix A
  • Appendix A Figures
• Appendix B
• Appendix C
• Appendix D

Rock Creek

• Complete Document
• Table of Contents and Acronyms
• Executive Summary
• Chapter 1
• Chapter 2
  • Chapter 2 Figures
• Chapter 3
• Chapter 4
  • Chapter 4 Figures
• Chapter 5 Watershed Assessment for Rock Creek
  • Figure 5-1 RocK Creek Assessment Map
• Chapter 6 Action Plan Summary
• Chapter 6 Action Plan Description Sheets
• Appendix A
  • Appendix A Figures
• Appendix B
• Appendix C
• Appendix D

Supporting Documents

• The River Starts Here
• USGS study of insecticide levels in urban streams

For more information please contact Leah Johanson at (503) 742-4620

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