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1. What is storm water runoff?

Storm water runoff is water that flows after a rainfall. During rainstorms, water drains off driveways, parking lots and streets picking up pollutants while flowing to the storm sewer system. Once storm water enters the storm sewer system of inlets, pipes or channels, it flows downstream to the nearest creek, lake or river.

2. What is urban runoff?

Urban runoff also flows to the storm sewer system. Urban runoff is water from irrigation, over watering, car washing and other sources that travel into the street picking up pollutants.

3. What can you do to help with water pollution?

To report illegal dumping into our storm drains or waterways, contact the City at 830-598-8741.

The largest source of storm water pollution are pollutants such as litter, pet waste, pesticides, fertilizers, leaves and yard clippings and automotive leaks and spills. These materials are swept away with the storm water and produce what is referred to as non-point source pollution.

Harmful bacteria, chemicals, sediment and litter enters or blocks the storm drain and leads to flooding, impaired water quality and endangers the health and habitat of local wildlife.

4. What is the difference between the storm sewer system and sanitary sewer system?

The water that goes down the sanitary sewer system (from sinks or toilets) flows to a wastewater treatment plant where it is treated and filtered prior to entering any water bodies.

The stormwater and urban runoff water that flows down driveways and streets and into the storm sewer system flows directly to our creeks, lakes and rivers. Anything that enters a storm sewer system is discharged untreated into the water bodies we use for swimming, fishing and providing drinking water.