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The utilities’ rate structure is based upon the amount of impervious surface area within each parcel or equivalent service units (ESU). A service charge of $45 per ESU, per year shall be levied against each developed parcel within the service area. The following are examples of how ESUs are calculated and applied within the service area:
You can continue to wash your car at home. Wash your car on the grass or a gravel area so the water can filter into the ground. Pour your soapy water out in an area where it can filter into the ground instead of down the storm drain. Do not discharge car wash water into the stormwater system including ditches and gutters.
An illicit discharge is anything that goes into a storm drain that is not 100% stormwater. If you see an illicit discharge, please report it to Douglas County Stormwater Utility at 509-886-3728.