Stormwater Management: Lewisville vs Little Elm

Do I need a stormwater permit for construction in Lewisville?

If your project disturbs one acre or more, you must obtain a TPDES Construction General Permit from TCEQ and develop a Stormwater Pollution Prevention Plan. The city also requires a drainage plan with development applications.

Can I wash my car and let the water drain to the street?

Residential car washing with biodegradable soap that flows to the street is generally considered a de minimis discharge. However, commercial washing operations or discharges containing chemicals, oil, or heavy sediment are prohibited from entering the storm drain system.

Who handles stormwater complaints in Lewisville?

Report illegal dumping, construction runoff, or stormwater pollution to Code Enforcement or the Engineering Department at (972) 219-3590.

Why is there a drainage fee on my Little Elm utility bill?

Little Elm adopted a stormwater drainage utility fee in 2011 through Ordinance 1087. The fee funds storm drain maintenance, drainage infrastructure improvements, and compliance with TCEQ stormwater permit requirements to protect Lewisville Lake water quality.

Can I wash my car or drain my pool into the street in Little Elm?

Pool water discharge and car washing runoff that enters storm drains may violate illicit discharge prohibitions. Stormwater drains flow directly to Lewisville Lake. Contact the Stormwater Utilities department for guidance on proper discharge procedures.