Stormwater Discharge Rates

The Stormwater Discharge fee was established in 2009 to fund a stormwater discharge program as required by the State of Texas. The only rate increase was passed by City Council in July of 2012.

TierImpervious Coverage Break DownRate

Tier 1 Residentialup to 1,000 Square Feet$1.85
Tier 2 Residential1,001 to 2,000 Square Feet$1.95
Tier 3 Residential2,001 to 3,000 Square Feet$2.15
Tier 4 ResidentialGreater than 3,000 Square Feet$2.25
Tier 1 Non-ResidentialUp to 5,000 Square Feet$5.50
Tier 2 Non-Residential5,001 to 15,000 Square Feet$9.50
Tier 3 Non-Residential15,001 to 50,000 Square Feet$24.50
Tier 4 Non-Residential50,001 to 150,000 Square Feet$45.50
Tier 5 Non-Residential150,001 to 500,000 Square Feet$72.50
Tier 6 Non-ResidentialGreater than 500,000 Square Feet$85.50

Impervious Coverage

Impervious coverage consists of the following and shall be used in calculating the square footage:

  • Buildings
  • Non Residential Sidewalks
  • Non-Residential Driveways
  • Parking Areas
  • Patios
  • Pools
  • Roads
  • Sheds
  • Other Impermeable Construction Covering the Natural Land Surface