Storm water is any form of precipitation, such as rainfall and snowmelt, which flows across the surface of the ground. Storm water that does not soak into the ground becomes surface runoff, which either flows into storm sewers or surface waterways or receiving streams. The term storm water may also be used to apply to water that originates from overwatering of landscapes and enters the storm water system. Although a natural part of the water cycle, storm water runoff can also be an environmental concern. Pollutants can enter surface waters such as our lakes, creeks, streams, and other natural waters when they are picked by the storm water.


Runoff flowing into a storm water drain

Oneimage of storm water and land development of the greatest potential contributors to storm water pollution is the development of land.  Land development is essential to the growth of our community and economy, but it can also impact the quality of our water. These activities can accelerate erosion, and if the appropriate preventive measures are not taken, those soils can be washed into the storm drain system during rain events causing blockage and pollution of our lakes, creeks and streams.

At the left, an impaired silt fence fails to hold in sediments.

If you would like more information on the City of Lewisville’s Storm Water Program, contact the Department of Public Services, Storm Water Division at 972.219.3507. Together, we can help ensure an abundant supply of clean water for years to come.

Storm Water Management Plan and Ordinance
If you have questions, or would like to submit a comment about the City of Lewisville Storm Water Management Plan, please contact the Storm Water Division at 972.219.3507 or

Storm Water Management Plan

Storm Water Ordinance   

Storm Water Public Education:
Public Service Announcements
Pet Waste
Car Washing
Cease the Grease

Stormwater Management in North Central Texas

Grease down the drain?

Yard Waste Management 

Stop Illegal Dumping

Reporting Storm Water Issues:
If you would like to report a storm water related issue in the City of Lewisville, please email, call 972.219.3507 during business hours, or call the Emergency Hotline at 972.219.3510.

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