Water Environment Services

Water Environment Services

WES Administrative Fees

Delinquent Account Certification$50.00 if not certified within prior 2 years
$100.00 if certified within either of prior 2 years
Delinquent Account Penalty2% of past-due balance, or $5, whichever is greater
Lien Search$36.00
Returned Check Fee$25.00
Public Records Request$1.00 for first page and 
$0.10 for subsequent pages
*Also when more than nominal staff time is necessary to research, review, redact, copy, or compile records: the actual cost of staff time, calculated at the hourly rate of the employee who performs the work. See public records policy and procedure.
Miscellaneous - Any other service, the cost of which is not included in the items listed above, for which the District will be reimbursed for the expenditure of funds for professional services, labor or materials$87.45 per labor hour plus direct expenses to the district
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WES Industrial User and Septage Fees

Clackamas Water Environment Services (WES) implemented changes to its extra-strength surcharge fees for industrial customers that discharge wastewater with higher concentrations of Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS) than typical wastewater. These changes are based on a recently completed cost-of-service study and will be implemented over three years, beginning July 1, 2026.  

Industrial Pretreatment Discharge Permit Annual Fee
a. 5–8 Industrial User Points$1,543.50
per year
b. 9–13 Industrial User Points$2,315.25
per year
c. 14–17 Industrial User Points$3,087
per year
Septage Hauling
Septage Permit Fee$150
annually
Septic Tank Waste Discharge$0.12/gallon
Extra Strength
Rate Zone 1Biochemical Oxygen Demand (BOD)
$0.2713/lb.

Suspended Solids (SS)
$0.2168/lb.
Rate Zone 2Biochemical Oxygen Demand (BOD)
$0.3112/lb.

Suspended Solids (SS)
$0.2188/lb.
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WES Development and Plan Review Fees

Project TypeReview Fees
Sanitary Sewer Plan Review $400 
or 4% of the estimated cost of any required public sewer extension, whichever is greater.
Surface Water Plan Review $400 
or 4% of the installed cost of any required surface water management system, whichever is greater.
Permit Application Review - Single Family Residence$118.35
Apportionment of Assessment$108 
plus recording fees
Installment Payment Application (not included in an assessment district)$514.50
Reimbursement District Application$3,591.20
Initial plus $771.75 for modification of proposal;
$514.50 for rescheduling hearing
Easement Application Fee$1,234.80
Inspection Fee$102.90
Sanitary Sewer Tap-In$684.30
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System Development Charges (SDCs) and Connection Charges

(rates effective 7/1/2026)

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.

DescriptionUpdated Fee
Effective July 1, 2026
Existing FeeChange
Sanitary Sewer SDC (per EDU)

$9,630

$9,375

 $255 / ~2.7%

Surface Water SDC (per ESU)

$272

$265

$7.00 / ~2.7%

Wastewater & Stormwater System Development Charge Update

System Development Charges FAQ

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WES Rate Zone Charges and Fees

Monthly Sanitary Sewer Service Charges

(rates effective 7/1/2026)

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.

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

$33.90

Oregon City
Including City Right-of-Way Surcharge

$34.25

West Linn

$32.30

WES Rate Zone 1 Retail

$49.55

 

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.

Service AreaWES Monthly Service Charge per
Equivalent Dwelling Unit
Unincorporated Clackamas County

$55.20

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

$58.61

Hoodland, Boring, Fischer’s Forest Park

$55.20

Milwaukie

$37.95

Johnson City

$37.95

*Customer Assistance Programs are available for qualified customers

 

Monthly Surface Water Service Charges

(rates effective 7/1/2026)

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. 

Service AreaWES Monthly Service Charge per Equivalent Service Unit
Unincorporated Clackamas County

$10.00

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

$10.50

Surface Water Monthly On-Site Maintenance 
(with approved Public Maintenance Agreement)
Unincorporated Clackamas County$3.00
City of Happy Valley$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)

$5.95

 

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

Description of servicesUnitsAmount
Surface Water

1

$10.00

Sanitary Sewer

1

$55.20

On-site Maintenance

1

$3.00

Right of Way Fee

1

$3.41

Total Monthly Charges

 

$71.61

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