The City of Southlake has an approved pretreatment program in coordination with the Trinity River Authority (TRA), where our wastewater is eventually treated. Commercial and industrial facilities utilize pretreatment of wastewater to remove harmful pollutants before they are discharged to the wastewater system under the control of a publicly owned treatment works (POTW).
In the City of Southlake, the control authority for this program is the Trinity River Authority. The pretreatment program is required by the United States Environmental Protection Agency (US EPA) and approved by the Texas Commission on Environmental Quality (TCEQ).
Certain industries with potential to discharge into the sanitary sewer system might need to apply for a City of Southlake industrial wastewater permit. For more information on this type of permit, please refer to the Code of Ordinances Article III, section 9.5-204 and 9.5-205.