Effective January 1, 2024, the base rate sewer service for 1 ERU is $45.00 per month. Depending upon your location, additional charges and fees may apply. Monthly billings for commercial accounts are based on the number of ERU’s for type of business establishment proposed use except in Ridgefield, where it is based on potable water consumption. The Commercial Flow Calculation Form and associated tables provide formulas to convert commercial uses into Equivalent Residential Units (ERUs). For each account, the minimum bill is for 1 ERU of service.
For questions on how your bill is calculated, please contact Engineering Customer Service at 360-993-4000.
For questions related to your commercial billing account, please contact Customer Service at 360-750-5876.
You may also visit the Rates & Charges page for more information.
