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Stormwater Management
INFORMATION CONCERNING THE MUSEUM FIRE AND FLOOD AREA CAN BE FOUND HERE
Be FLOOD Aware!
To minimize possible flood events, Flagstaff Water Services is asking residents to do their part by keeping privately-owned easements and City-owned right-of-way channels -drainages and ditches- accessible and clear of debris.
Please call 928-213-2175 to report drainage and debris issues.
Or use the online request system at www.flagstaff.az.gov/requesttracker.aspx Scroll down to Item F, Flooding and Drainage.
If your home is flood impacted, call 928-213-2990.
Please use 9-1-1 for emergencies only.
Only Rain in the Storm Drain
Did you know that Flagstaff's storm drain system and sewer system are separate? What goes down the storm drain is not treated at a treatment plant, but flows untreated into the Rio de Flag. Help us protect our local waterways by preventing stormwater pollution. Hazardous Household Waste, including automobile oil, can be disposed of at the Flagstaff Hazardous Products Center (HPC).
Enjoy this video and remember: Only Rain in the Storm Drain!
Another way you can protect our Watershed!
Construction Debris Down the Storm Drain
City of Flagstaff updates for the Coconino County Multi-Jurisdictional Hazard Mitigation Plan
Click HERE
Small Municipal Separate Storm Sewer System General Permit
The City of Flagstaff encourages residents to view the small MS4 general permit and the NOI. Public comments are due to ADEQ by Email or mail (must be postmarked or received) by May 20, 2017. A link to the public notice on ADEQ's webpage is
New Requirements for certain single family Building Permits
Effective January 1, 2015 the Arizona Department of Environmental Quality (ADEQ) will require a Stormwater Construction General Permit (2013 CGP) for certain single family residential units and subdivision infill projects. (See complete list of affected subdivisions in the Fact Sheet link provided below).
Requirements per ADEQ: Construction sites that disturb less than one acre, but are part of a common plan of development or sale that will ultimately disturb one acre or more need CGP coverage. It includes all clearing, grading, excavation, and stockpiling activities that will result in the disturbance of one or more acres. It also includes supporting activities such as storage of construction materials, vehicle and equipment storage and maintenance (e.g., fill piles, borrow area, concrete truck washout, fueling).
This permit is a requirement of the Clean Water Act and administered by the City of Flagstaff in conjunction with the Arizona Department of Environmental Quality (ADEQ). It is a part of the National Pollutant Discharge Elimination System (NPDES) focusing on point source pollutants associated with stormwater runoff.
Code Enforecment Partnership brochure
Erosion and Sediment Control brochure
Stormwater Credit Manual
Application (click here)
Contractor Resources
Fact Sheet
Register for a myDEQ Account
How to file an Notice Of Intent (NOI) Guidance Document
myDEQ Video: Migrating or Creating NOI (CGP)
myDEQ Video: Terminating an NOI (CGP)
2013 Construction General Permit (ADEQ)
Construction General Permit (CGP) Inspection Form
Frequently Asked Questions (CGP)
Notice of Intent (NOI) Fillable Form
Erosion Control Plan for SFH
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Floodplains
Floodplain Information
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Downloads
Document downloads including design manuals, regulations, SWPPP forms, etc.
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NPDES
NPDES
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LID
LID - Low Impact Development
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Projects
Projects the Stormwater Team are currently working on
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Contact Us
Meet the Team of Flagstaff Stormwater
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Monsoon/Flooding Preparedness
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Reports
Link to page