STormwater Outreach for Regional Municipalities (STORM)

STORM is a regional organization promoting stormwater quality education within the greater Phoenix metropolitan area. STORM uses a multimedia approach targeting audiences through radio, television, special events, and providing permit information to the general public and the regulated community.

Latest News

Flash Flooding

Many of you may be aware of the flash flooding that hit US89A between Marble Canyon and House Rock Valley on August 9th. The rain total was between 1.3 and 1.7 inches in 15-20 minutes and is an estimated 200 year event. The really large (trailer-size) boulders in some of the photos were washed down to the culverts from House Rock Valley which is about 1.5 miles upstream. Some of these were actually pushed up onto the road surface when they met the culverts.
Source: David Zimmerman, ADOT Historic Preservation

View the embedded image gallery online at:

June 2015

To find out how you can make clean water happen at your home, click the "What Can I Do?" link above.

Developing in AZ? Did you know if you are developing land in Arizona you will need to perform stormwater pollution prevention?

You may need to have your stormwater construction plans reviewed with a city or county, AS WELL AS obtain a state or federal stormwater permit. If you are working in the local area find out more by clicking on the appropriate municipality on the list on the right side of this page.

For more information on stormwater permits, click here.

Clear Protection for Clean Water

Today, in an historic step for the protection of clean water, EPA and the U.S. Army finalized a rule under the Clean Water Act to more clearly protect the streams and wetlands that form the foundation of the nation’s water resources.

Clean water and water ecology are topics of special interest to many environmental educators. Students of all ages understand the importance of clean water in their own lives. Local watersheds provide opportunities to connect students to nature.

Learn more about protecting clean water with these resources.

Visit the website.

Use social media, new videos and graphics to spark your students' interest.

Explore an interactive map on local drinking water.

Find more water education resources for your classroom.

Industrial Stormwater Compliance Seminar

Stormwater Outreach for Regional Municipalities (STORM), an organization of Phoenix area municipalities and organizations, hosted a free seminar on how to comply with Arizona’s Multi–Sector General Permit for stormwater discharges from industrial facilities. Topics covered included:

  • Visual Assessments
  • Routine Self-Inspections
  • Training
  • Recordkeeping
  • Enforcement

Information and presentations from the seminar are located here.


Washing Your Vehicle
Detergents, cleansers, and solvents used while washing your vehicle can cause stormwater pollution...
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Vehicle Maintenance
For do-it-yourselfers, performing car maintenance at your home is a good way to keep busy and save money...
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Construction Permits
Stormwater discharges associated with construction activities can cause physical, chemical, and biological...
Learn More