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Depositing Substances in City Drains

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It is unlawful for any person to discharge any substance other than naturally occurring stormwater runoff into the City's storm drainage system.   These items include but not limited to dirt, mud, landscape materials, and hazardous substances such as but are not limited to oil products or gasoline, paint, concrete, or any type of cleaning waste or residue.   The only exception besides naturally occurring stormwater runoff are return flows from irrigation, water from building foundation drainage, runoff from noncommercial car washing, dechlorinated water from swimming pools or water mains, water used for firefighting, discharges of water from ditches and canals as necessary to protect public drinking water supplies, and other waters determined by the city to be noncontaminated and acceptable for return to the storm drainage system and stream system.   To ask a question or make a request on this topic, please submit a service request or call 720-898-7807. 

This information was brought to you by the Utilities Department.


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