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Water Environment Services

Water Environment Services

Water Environment Services

WES Development and Plan Review Fees

Sanitary Sewer Plan Review - Subdivision$400 
or 4% of the estimated cost of any required public sewer extension, whichever is greater; except, no fee will be due for; a) Tenant improvements where there is no change of use or no additional public sewer connection, b) Building additions less than 2,000 sq. ft. and there is no change of use or no additional public sewer connection
Sanitary Sewer Plan Review - Commercial/Industrial$400 
minimum
Surface Water Plan Review - Minor Partition, Subdivision, Commercial/Industrial$400 
or 4% of the installed cost of any required surface water management system, whichever is greater; except, no fee will be due where there is no additional impervious surface area.
Surface Water Plan Review - Single Family Residence$55
Apportionment of Assessment$105 
plus recording fees
Installment Payment Application (not included in an assessment district)$110
Collection Sewer Charge Reimbursement Application$500 
initial plus 100 per reimbursement
Easement Release Application Fee (Quit Claim)$260 
plus District acquisition expense
Easement Encroachment Application Fee$105
Sanitary Sewer Disconnection$75
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System Development Charges (SDCs) and Connection Charges

(rates effective 7/1/2024)

Connection Charge

 $6,000  minimum, if applicable. See WES Rules, Section 5.5

System Development Charges

The sewer and storm SDCs shall be calculated based on the Classes of Service defined in WES Rules, Section 5.4 - Tables 2 and 3.

Sanitary Sewer System Development Charge (Rate Zones 1 and 2)$9,100.00
per EDU
Surface Water System Development Charge (Rate Zone 2)$246.50
per ESU

Sanitary Sewer Tap In - 4"

North Clackamas Service Area$125.00
Hoodland Service Area$150.00
Boring Service Area$125.00

Sanitary Sewer Tap In - 6"

North Clackamas Service Area$150.00
Hoodland Service Area$175.00
Boring Service Area$150.00

System Development Charges FAQ

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WES Rate Zone Charges and Fees

Monthly Sanitary Sewer Service Charges

(rates effective 7/1/2025)

Rate Zone 1 Sanitary Sewer Service Area

Includes the cities of Gladstone, Oregon City, West Linn, and a small number of WES retail customers in Oregon City.

The cities in Rate Zone 1 establish their own charges and fees for local collection and other services provided and bill directly to the customer.

 WES Monthly Service Charge per Equivalent Dwelling Unit
Gladstone
Including City Right-of-Way Surcharge

$32.30

Oregon City
Including City Right-of-Way Surcharge

$32.60

West Linn

$30.75

WES Rate Zone 1 Retail

$47.20

Rate Zone 2 Sanitary Sewer Service Area*

Includes unincorporated Clackamas County, the Cities of Happy Valley, Johnson City, and Milwaukie, and the communities of Hoodland, Boring, and Fisher’s Forest Park.

The cities of Milwaukie and Johnson City in Rate Zone 2 establish their own charges and fees for local collection and other services provided and bill directly to the customer.

 WES Monthly Service Charge per
Equivalent Dwelling Unit
Unincorporated Clackamas County

$54.40

City of Happy Valley
Including City Right-of-Way Surcharge

$57.12

Hoodland, Boring, Fischer’s Forest Park

$54.40

Milwaukie

$37.95

Johnson City

$37.95

*Customer Assistance Programs are available for qualified customers

Monthly Surface Water Service Charges

(rates effective 7/1/2025)

Surface Water Management provides water quality protection for the community by implementing programs to reduce pollution in our rivers, streams and wetlands caused by urban stormwater runoff.
SWM fees fund:

  • water quality monitoring
  • investigation of water quality, erosion, and drainage issues;
  • water quality and drainage improvement projects;
  • customer service response
  • public education and awareness

The SWM charge reflects the amount of impervious surface on each site, which is a measure of increased runoff into the storm drainage system.

Rate Zone 2 Surface Water Service Area

Includes unincorporated Clackamas County and the City of Happy Valley.  

 WES Monthly Service Charge per Equivalent Service Unit
Unincorporated Clackamas County

$9.55

City of Happy Valley
Including City Right-of-Way Surcharge

$10.03

Surface Water Monthly On-Site Maintenance 
(with approved Public Maintenance Agreement)
Unincorporated Clackamas County$3.00
City of Happy Valley
Including City Right-Of-Way Surcharge		$3.15

Rate Zone 3 Surface Water Service Area

(Includes the City of Rivergrove and portions of unincorporated Clackamas County draining into the Tualatin River)

$5.70

Sample Monthly Bill for a Single Family Home in the City of Happy Valley in Rate Zone 2

Description of servicesUnitsAmount
Surface Water

1

$9.55

Sanitary Sewer

1

$54.40

On-site Maintenance

1

$3.00

Right of Way Fee

1

$3.35

Total Monthly Charges

 

$70.30

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If it’s on the ground, it’s in our water

When trash — plastic bags, bottles, cigarette butts, etc. — is thrown on the ground, it gets washed into storm drains and directly into our waterways. In addition to potentially choking, suffocating, or disabling aquatic life like ducks, fish, turtles, and birds, litter decreases oxygen levels in the water when it decays. Litter is one of the most unsightly forms of pollution in our local waterways and can easily be prevented. Most litter can be recycled, which protects the environment and saves our natural resources.

The lifespan (decomposition time) of some commonly littered items


Cigarette butts littering on the ground

Cigarette butts: 1–5 years

Myth: Cigarette filters are biodegradable. 
Fact: The acetate filters can take many years to decompose. Also, the toxic chemicals the filter was designed to trap leak out into aquatic ecosystems, threatening marine life. Cigarette butts may seem small, but with millions of butts littered every year, they are one of the biggest sources of pollution.


Littered plastic bag caught in a tree

Plastic bags: 10–20 years

When larger pieces of plastic waste are disposed of in the environment, they get weathered and degrade. These larger pieces of plastic break down into smaller and smaller pieces and are eventually reduced to microplastic particles. Microplastics are eaten by fish, birds, and any animals drinking the water.


Squashed aluminum can littered on the ground

Aluminum cans: 200–500 years


Glass bottle littered on the forest floor

Glass bottles: 1 million years

How can you help keep our waters clean?

  • Carry a bag for waste along in the car to eliminate the temptation to throw it out the window. Put litter in your pocket until you find a recycling container or trash can. 
  • Recycle and reuse items whenever possible. Glass, paper, metal, cardboard, and some plastics can be recycled.
  • Pick up one piece of litter every day! That's 365 fewer pieces of litter on our streets, in our parks, and around our schools, thanks to you. Imagine if everyone picked up just one piece! 
  • Make sure your trash bins have lids that can be securely attached. Do not put out open containers or boxes filled with debris. 
  • Keep litter out of pick-up truck beds and cover loads, so items are not blown off to the ground. 
  • Join a clean-up event.
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