Wastewater & Stormwater

Sewer service is billed at the beginning of the month, and payment is due by the last business day of the month. A $10.00 late fee will be assessed if your balance is not paid by the 15^th of the following month.

Both residential and commercial bills are based on a base fee plus a charge for each unit of water used. Water usage is provided to the City by Asotin County PUD for the months of January and February. The City then determines an average water usage for those months, and based on that average, recalculates the monthly sewer charge each April. This charge remains in effect until the next year’s calculation. For properties without a current water history or an incomplete water history for the study period, the sewer charge will be based on the “average” sewer rate for the property’s classification.

Owners of properties that experience unusually high amounts of water usage due to a water leak may apply for a sewer adjustment once repairs have been made and documentation provided. Requests for adjustments must be made within 90 days of repairs. Contact City Hall for details. If a property will remain vacant for an extended period of time (at least 45 days), the property owner may apply for “vacancy” charges by completing and filing the necessary form with City Hall. Visit the links below to find up-to-date utility rates for the City of Clarkston.