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Sanitary Sewer Charges (Sewage)

Every time you take a shower or flush a toilet or do the dishes, you’re producing sewage, which is the wastewater generated from bathrooms, kitchens, laundry facilities, etc. It comes from homes, businesses, commercial properties and public institutions. Sewage runs through the sanitary sewer system and is treated through a variety of biological and chemical processes in the treatment facility at the Metro Wastewater Reclamation District, and rendered safe before it’s returned to the environment.

Winter Billing Period

For residential users (both single family and multi-residential, such as duplexes or four-plexes) sanitary sewer charges (which are included in the monthly Denver Water bill) are calculated based on the metered volume of water into the premises during a winter billing period, usually the month of February. This time period is used because customers are doing little or no outside watering. Consequently, this should measure the lowest consumption of the year. This winter billing rate applies to sewer charges beginning with the March water/sewer bill and continues for the rest of the year. It will be re-determined the following year during the next winter billing period. 

If a residential customer has a water leak during the winter billing period, they are advised to call Wastewater Management / Customer Service at 303-446-3500 once the leak is repaired to see if the sanitary sewer charges can be adjusted. 

If we determine that an adjustment is in order, we will credit the account for the billing period(s) after the leak was repaired. We cannot provide a credit for the month in which an inside leak (dripping faucet, toilet leak, etc.) occurred because the water from an inside leak enters the sanitary sewer system and must be treated. 

Customers are also encouraged to call us if they are a new homeowner or a new tenant and think their usage is less than what they are being billed for. If you are a tenant, your name must be on the Denver Water bill for us to process your request.

If it appears we will be able to adjust your account (for a leak or new tenant / homeowner) we will ask you to submit a written request giving us permission to review your account. Please provide copies of any receipts for repair work. You may use the PDF form linked on this page or write us a brief letter of request.

Commercial / Industrial Customers

Because water and sewer charges for commercial / industrial customers are based on actual monthly consumption, we do not adjust for inside leaks for commercial / industrial customers. However, we can adjust for outside leaks.  We need a written request from the customer. Please include repair receipts. If you don’t have receipts, we can send an investigator to verify the leak and subsequent repair. 

An adjustment cannot be made until consumption returns to the prior year’s usage for the same period and we will only adjust for the billing periods affected by the leak.

You may send us a request of your own via USPS, fax, or e-mail. You may also use the PDF form linked on this page.  

Request a Review

Request to Review Monthly Sanitary Sewer Charges (PDF)

Download and complete this PDF form and submit by email, mail, or fax. Please provide copies of receipts for repair work or other documentation that may help us process your request.