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The Wastewater Management Division which is part of the Public Works department, builds, operates and maintains Denver's sanitary sewer system and storm drainage system. We maintain more than 1525 miles of sanitary sewers and 793 miles of storm drainage facilities.
You should pay any past due amounts as soon as you can. Wastewater Management Division does not charge a late fee. If you fail to pay sanitary sewer or storm drainage charges a service lien can be filed against your property. When a service lien is filed the balance owed is increased by a filing fee and monthly delinquency interest is charged. Service lien delinquencies unpaid as of November of each year are sold at a tax lien sale. The City Treasurer will then file a tax lien against the property. If the tax lien and interest is not settled within three years from the date the tax lien is filed, title to the property may be lost to a Treasurer's Deed.
When land is undeveloped rain and melting snow will soak into the land or naturally flow to streams and rivers. When land is developed an impervious surface is created. An impervious surface is a man-made area that will not readily absorb water. Examples of impervious surfaces include paved areas, roof tops, streets and sidewalks. Developed land cannot absorb the water as easily, if at all, and many flow patterns are changed. In order to control the storm water, a storm drainage network has been built. These facilities must be operated, maintained, renewed and replaced in order to provide a safe flow of storm water.
To control storm waters and receive the benefits of that control, there is a cost. Since everyone in the City benefits, The Denver City Council passed an ordinance in 1981 which authorizes a storm drainage service charge to be collected from the owners of all improved parcels of land.
The annual charge to a property owner is based on the relative impact the property will have on the storm drainage system. For instance, a parking lot will have more storm runoff than a grassy area of the same size. The charge is based on the ratio of impervious surface area to total parcel area. An impervious surface is a man-made area that will not readily absorb rain water as it falls. Based upon that ratio, a rate is applied to the impervious area to calculate the annual charge. The higher the ratio, the greater the rate.
Calculate your Storm Drainage bill
. Our telephone hours are 7:30 a.m. to 4:00 p.m., Monday - Friday. Our offices are open to answer your questions from 7:30 a.m. to 4:00 p.m., Monday - Friday. We are located at 2000 West Third Avenue, Denver.
For more information visit the Stormwater Quality page.
You can now pay your annual storm drainage bill online using StormPay.
Wastewater Management Division2000 West 3rd AvenueDenver, CO 80223Business Hours: 7:30 am - 4:00 pmMain Office: 303-446-3400Billing Inquiries: 303-446-3500