Industrial Pretreatment Program

The City of Grand Prairie administers local, state and federal regulations affecting area businesses and the quality of the wastewater discharged to the City’s sanitary sewer.  The City of Grand Prairie sends its domestic and commercial wastewaters to the Trinity River Authority for treatment before being released into the Trinity River.

In 1977 the Clean Water Act established guidelines for improving the water quality of the nation’s waterways through regulation of industrial wastewater. These regulations were implemented to protect the wastewater treatment process and workers, allow beneficial re-use of bio-solids, allow reclamation of treated effluent for other purposes, and maintain exceptional water quality in the receiving streams.  Industrial wastewater may contain pollutants such as heavy metals, cyanide, toxic organic compounds, oil and grease, as well as many other pollutants which can interfere with treatment of the wastewater.

The City of Grand Prairie’s Pretreatment Program is locally regulated under Ordinance 6807, Chapter 13, Article XVI – Industrial Wastewater Discharges as well as state and federal requirements under the Clean Water Act.  Some major elements of the City’s Pretreatment Program include:

  • Review of Building Permits and Certificates of Occupancy for possible regulation under the program
  • Issuance of applicable permits
  • Publication of quarterly informational newsletter
  • Performance of inspections and collection of samples
  • Review of permittee reports

Industrial Facilities Ordinance

Wastewater Permits
Inspections and Sampling
Inspection and Sampling Frequencies
Tier II Chemical Reporting