Scottsdale regulates stormwater under Revised Code Chapter 37 and its AZPDES MS4 permit. Development projects must manage stormwater runoff quality and quantity to protect downstream properties and waterways. Construction sites over 1 acre require a Stormwater Pollution Prevention Plan (SWPPP).
Scottsdale's stormwater management program operates under an AZPDES Municipal Separate Storm Sewer System (MS4) permit. Revised Code Chapter 37 establishes requirements for stormwater management during and after construction. Projects disturbing more than 1 acre require an AZPDES Construction General Permit and SWPPP. Post-construction stormwater controls are required for new development to ensure no net increase in runoff from the site. Low-impact development techniques such as retention basins, bioswales, and permeable surfaces are encouraged. The city's DSPM provides detailed engineering standards for stormwater infrastructure. Illicit discharges to the storm drain system are prohibited. Scottsdale actively monitors water quality in washes and drainage facilities.
Stormwater violations may result in fines, stop-work orders, and liability for downstream damage. AZPDES permit violations can trigger state enforcement by ADEQ.
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Side-by-side rule comparisons with other cities in Maricopa County.
See how other cities in Maricopa County handle stormwater management.
See how Scottsdale's stormwater management rules stack up against other locations.
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