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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 flows into storm sewers, surface waterways, or receiving streams. The term storm water applies 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 is also a potential environmental concern. Pollutants can enter surface waters such as lakes, creeks, streams, and other natural waters when they are picked up by the storm water. To the right, runoff flows into a storm water drain.

Oneimage of storm water and land development of the greatest potential contributors to storm water pollution is land development. While essential to the growth of our community and economy, land development can impact the quality of our water by accelerating erosion. If appropriate preventive measures are not taken, those soils can wash into the storm drain system during rain events causing blockage and pollution of our lakes, creeks, and streams. To the left, an impaired silt fence fails to hold in sediments.


For 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 send us an email.

Storm Water Management Plan

Storm Water Ordinance   

Storm Water Public Education:
Public Service Announcements
Pet Waste
Car Washing

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, send us an email, call 972.219.3507 during business hours, or call the Emergency Hotline at 972.219.3510.

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