Stormwater Runoff & Violations

Environmental Department's Mission
The mission of the Environmental Department is to protect public health and safety. One of the best ways to do this is through education. Here we have tried to provide information and helpful links to allow our public to stay as informed as possible on Stormwater Quality.
What is Stormwater Runoff?
Stormwater is water that originates during a precipitation (rain, snow, sleet, etc.) event. Once the water begins to flow over the ground, it becomes stormwater runoff. Impervious surfaces such as streets and sidewalks prevent stormwater runoff from soaking into the ground.

What's the Problem?
The problem is that when the stormwater is running over the ground it can pick up pollutants including trash, sediments, and chemicals. When the water enters the storm drain, there is no cleansing process like with waste water. The stormwater runoff and any pollutant that it contains, enters into our rivers, lakes, and streams potentially polluting them; affecting those animals, plants, and humans that use that water.

What Can You Do?
There are a number of things you can do to help reduce the amount of pollutants that enter into our stormwater.
  • Lawn Care
    • Use organic products for mulch or pest control. If you need to use chemicals, use them sparingly
    • Compost or mulch using leaves and yard trimmings. Never sweep them into the street
  • Pet Care - Pick up pet waste and properly dispose of it. Otherwise, it could wash down harmful bacteria and nutrients into nearby bodies of water.
  • Auto Care
    • Properly dispose of used fluids. Never wash them into the storm drain.
    • Wash your vehicle at a car wash where the water can be captured and recycled.
  • Septic Systems - Maintain your system. Inspect it every 3 years and pump it when required.
Learn More
What is Considered a Violation?
A violation occurs when a pollutant is introduced into the municipal storm sewer system (MS4) or into a body of water. The MS4 is anything that can convey water. This includes, but is not limited to, drainage channels, storm sewers, and even streets.

Examples of violations are:
  • Vehicles leaking oil or other fluids into the street
  • Filling in floodplain
  • Illegally dumping near or in the MS4 or waterway
Construction Site Violations
For construction sites, violations consist of:
  • Not maintaining Best Management Practices (BMPs)
  • Silt fencing down or allowing sediment through
  • Tracking sediment into street
  • Concrete washout outside washout pit
  • Not properly containing construction debris and trash on site
Need to report a violation? Please contact us or use YourGov.


  1. Erin Lowe, EIT

    Email Erin Lowe
  2. Stan Jordan, Deputy

    Email Stan Jordan

YourGov Bexar County