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Stormwater
Management Program

The Stormwater Management Section (SWM) works in cooperation with other City departments to coordinate the City's stormwater management program and maintain compliance with the Municipal Separate Storm Sewer System (MS4) permit. SWM inspects industrial and commercial facilities for compliance with Phoenix City Code Chapter 32C, investigates illicit discharges to the storm drain system, conducts wet-weather monitoring, and conducts public outreach.  The Street Transportation Department is responsible for maintenance of storm drains and washes, cleaning the streets and catch basins, as well as creating maps of the City's storm drain system. The Planning and Development Department monitors construction sites for stormwater compliance. Public Works implements the Household Hazardous Waste Collection Program and works with Keep Phoenix Beautiful to conduct environmental education and outreach programs. The Office of Environmental Programs coordinates city employee training and evaluates City facilities and construction activities for compliance with stormwater requirements. 

If you are interested in additional information, have questions, or see illegal dumping, contact the City of Phoenix's Stormwater Management Program.  

Please call the Stormwater Hotline at (602) 256-3190 or email ask.water@phoenix.gov​​.


Stormwater Document​s

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Stormwater Excise Tax graphic Stormwater Excise Tax

The Stormwater Excise Tax funds the City’s compliance with a required Clean Water Act Municipal Separate Storm Sewer System (MS4) permit from the Arizona Department of Environmental Quality for operation of the storm drain system. This permit is required to prevent pollution from entering our washes and rivers and requires actions by the City, such as infrastructure maintenance, water quality monitoring, and inspections. As of 2021, the City is operating under a new permit with new and expanded requirements. An increase of $0.25 per month for single family residences (5/8 or 3/4 size water meters) is being proposed to fund the City’s compliance with these legal requirements. This increase equates to an additional $3.00/year for these accounts.​ The proposed increase for larger meter sizes is scaled at a graduated rate using the equivalent dwelling unit methodology.​ Learn more about the proposed tax increase.  




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Stormwater Document​s

Annual Report

Permit

StormWater 
Management 
P​​lan (S​WMP)

Report a Violation


Contact Us

Hotline: (602) 256-3190​​​
Email Contact Form​​