Events & Training

Stormwater Training Classes and upcoming meetings.

Stormwater Permitting

Permit applications, fee scheduling, process and compliance, and much more.

Storm Drain System

Environmental regulations and general illicit discharge locations.

Helpful Links

Can’t find what you need? Look in our quick links.

Storm Drain System
Since 2008, the 5-2-1 Drainage Authority has been committed to managing a proactive Stormwater Program to improve the quality of runoff entering the storm sewer system and receiving streams.  The Stormwater Program is regulated by the Clean Water Act under the National Pollutant Discharge Elimination System (NPDES) and is administered by the Colorado Department of Public Health and Environment (CDPHE).  The 521 DA has been a consistent leader in the implementation of its Stormwater Program under Phase II of the NPDES regulations, understanding the benefits of improving the quality of stormwater runoff beyond the basic level of regulatory compliance.



The 5-2-1 DA is an outgrowth of the partnerships between the City of Grand Junction, the City of Fruita, the Town of Palisade, Mesa County and the Grand Valley Drainage District.  The boundary was established to include those private lands adjacent to the Colorado River and the private and public lands above them in the drainages.  Because the authority is wholly within Mesa County, the boundaries do not extend beyond the Mesa County line even though the contributing areas of some of the drainages originate well outside the county.


Stormwater Management is the process of understanding, planning for, analyzing and controlling stormwater.

When It Rains, It Drains.

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Our Responsibility

Our Responsibility

Hazardous Waste Disposal

Grand Junction Recycling