Public Works > Utilities > Stormwater Management

Stormwater Management

Mission Statement:

Improve floor protection, water quality, and groundwater recharge through education, coordination, developement, maintenance, and management of stormwater systems in an efficient and cost effective manner that considers the needs for protection of public health, private property, the natural environment, and economic developement.


Stephen Tencza, P.E.
MS4 Coordinator


Why does the City need a Stormwater Management Section?

The City of Nogales has for many years had a Stormwater Management Section to address flooding and water quality problems that impact property and the environment. These types of problems are not easily attributed to a single source, and are usually the result of a combination of things that increase the amount of impervious surfaces (roads, driveways, and development) and affect water quality (erosion, fertilizers, and petroleum products).

As the City continues to grow over the next 20 years, from a 2000 population of 20,000 to a 2025 population of 28,534. This growth means that there will be more impervious surfaces created by new homes, roads, and driveways, and that existing flooding and water quality problems will worsen. Addressing these probles through the stormwater Section we will help to ensureresponsible and sustainable developement and will help to protect the City of Nogales' envionment.


About Stormwater and Urban Runoff:

The City of Nogales is on its way to being a green City. Consistent with the city's green goals is improving water quality. Improved waterquality is important in order to protect the environment, wildlife,and recreational uses of the waters, from nearby neihborhood streams to te Santa Cruz River and all the way that feed the Nogales Wash.

To improve water quality, the city implements many measures, including stormwater pollution management and urban runoff management. The city's efforts are guided, in part, by federal and state regulations including the Clean Water Act and the National Pollution Elimination System (NPDES) program.  One way the city is working to improve water quality is by reducing the pollution and water program. One way the city is working to improve water quality is by reducing the pollution and water flowing from the city's storm and drain system 
towards the Nogales Wash and eventually into the Santa Cruz River.


What is stormwater pollution?

Stormwater pollution is everything else thay you see and don't see, mixed with the stormwater. The city's streets and storm drain system is designed to funnel stormwater from the streets to local streams and rivers, then down to the Santa Cruz River. Unfortunately, many activities pollute water quality and, ultimately, harm the environment. These activities include over-watering lawns, applying commercial fertilizers and pesticides, and discarding trash on the sidewalk and streets.


What can you do?

Maintain a healthy environment is everyone's responsibility. Urban runoff management helps minimize and prevent stormwater pollution. Below are some things you can do to help improve water quality:

  • Conserve and re-use water.
  • Go organic or homemade.
  • Sweep sidewalks instead of hosing them.
  • Use mulch to control runoff.
  • Click the Trash & Recycling button at the top of this page to learn more about composting, recycling, and hazardous waste disposal.
  • Pick up your pet's droppings and dispose of it in the trash.
  • Collect rainwater and use it for future lanscaping watering,
  • Use cat litter to collect spilled oil/grease. Sweep it up, then dispose of it by calling your trash company for a special pick-up or bringing it to a city household hazardous waste collection event.
  • Make sure all water runoff from pressure washing flows to lanscape.
  • If you see illegal dumping into the stormdrain, call the city at (520) 285-5651 or the City of Nogales hotline or online report a concern at (520) 285-5731. - Remember, only rain down the storm drain!



Report a Concern:

The Stormwater Management Program responds to City of Nogales Citizen's concerns about:

  • Spills that impact or threaten stormdrains or washes.

  • Dry weather/non-storm flow in stormdrains or washes.

  • Construction site runoff.

  • Runoff from industrial sites.

  • Dumping of wash water to stormdrains or washes.

  • Runoff from car washing or detailing operations.

Please describe you concern thoroughly in an email to Stormwater staff at or by phone at (520) 285-5651. Be sure to include the location, time of incident, and type of incident. If this is an emergency please call 911.

Other local agencies handle the following citizen concerns:

  • Report Illegal Dumping online
    here or call (520) 285-5731 Moday - Friday 8:00 AM to 5:00 PM.

  • Report Flooding Concerns (City of Nogales City Engineer's Office) (520) 285-5755.

  • Request Wash and Stormdrain Maintenance (Nogales Streets Division) (520) 285-5732 or (520) 285-5731.

  • Report Water Waste (City of Nogales Water Department) (520) 285-5731.

  • Report Sanitary Sewer Overflows (City of Nogales Waste Water Management Department) (520) 285-5731.

  • Mosquitoes and Other Vectors (Santa Cruz County Health Department) (520) 375-7900.

  • Report Dust (City of Nogales City Engineer's Office) (520) 285-5755



Public Education and Outreach on Stormwater Impacts: 



EPA Logo


Arizona Department of Environmental Quality:




FEMA Flood Protection Library Downloads: 




Pima Association of Governments


Pima Association of Governments


Municipal Stormwater Inspection Program: Stormwater Inspection Program


City of Nogales Facility Stormwater Inspection Form: Stormwater Inspection Form


Parks Maintenance Yards Stormwater BMP's: Parks Maintenance Yards Stormwater BMPs


More information about Stormwater:


Arizona Pollution Discharge Elimination System (AZPDES)

Stormwater Outreach for Regional Municipalities (STORM)

Low Impact Development

City of Nogales Storm Managament Plan (New)

Stormwater Control Measure Field Manual (New)

City of Nogales Ordinance 2007-10-007 (New)

City of Nogales Notice of Intent (New)

City of Nogales FY14-15 MS4 Report (New)