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Wastewater Utility Rates

The wastewater portion of your utility bill has two charges:

   2025 Rates 2026 Rates 
Residential charge per dwelling unit $40.88 $43.66
Winter water average usage (average is six per month)  $0.80/unit = $4.80  $.85/unit = $5.10
Total monthly charge for wastewater service  $45.68  $48.76
Total bi-monthly charge  $91.36  $97.52

 

Consumption-based wastewater billing: winter water average

A small portion of your utility bill for wastewater is based on your home's average water consumption during the preceding winter months of October - April. This is called the winter water average.

  • Under this format, every customer will pay at least $81.76 per billing period (for two months of service), plus the winter water average usage at $.80 per unit.
  • Each unit of water is equivalent to 748 gallons.
  • Effective January 1, 2026, customers will pay at least $87.32 per billing period (for two months of service) plus the winter water average usage at $.85 per unit. 

Most cities in the region base some portion of their wastewater utility bill on water usage.

Read more about consumption-based wastewater billing.

Contact us

For more information, contact Utilities at 503-618-2373 or UtilityBilling@GreshamOregon.gov.