How Portland Calculates Your Sewer Bill

Your residential sewer bill is based on your “Winter Average” water use.

So, what is your “Winter Average?”

Your “winter average” is calculated by measuring your water use between February 1 and April 30.

Visit the Portland Environmental Services Bureau website to learn more: https://www.portland.gov/bes/pay-your-utility-bill/sewer-and-stormwater-rates-and-charges

“.... Sanitary sewer: Residential single-family or multi-family sanitary sewer charges are calculated using actual water flow, class average flow, or winter average flow. Residential customers are billed the winter average or actual water consumption during those billing periods, whichever is less…”

“How to Calculate Your Winter Average

For residential accounts billed quarterly, the winter average is calculated based on water readings between February 1 and April 30. Most water consumed is used indoors during this time of year and enters the sewer system….”

Source: https://www.portland.gov/bes/pay-your-utility-bill/sewer-and-stormwater-rates-and-charges

Posted by Laura on 1/14/25