Pretreatment Program

Arapahoe Water and Wastewater Authority owns and operates the Lone Tree Creek Water Reuse Facility (LTCWRF). The LTCWRF treats wastewater received from users within the ACWWA service area (both residential and commercial) and discharges treated wastewater discharge to the Lone Tree Creek, as authorized by the Colorado Department of Public Health and Environment – Water Quality Control Division. To ensure compliance with the LTCWRF discharge permit, ACWWA is required to protect the LTCWRF against impacts from pollutants in non-domestic wastewater. Therefore, ACWWA has established the ACWWA Pretreatment Program. The ACWWA Pretreatment Program applies to all industrial users discharging wastewater to the LTCWRF. 

 ACWWA Pretreatment Program Objectives

  1. To prevent the introduction of Pollutants into the Lone Tree Creek Water Reuse Facility (LTCWRF) that will interfere with its operation; 
  2. To prevent the introduction of Pollutants into the LTCWRF that will pass through the LTCWRF, inadequately treated, into receiving waters, or otherwise be incompatible with the LTCWRF;
  3. To protect both LTCWRF personnel who may be affected by wastewater and sludge in the course of their employment and the general public;
  4. To promote and protect the reuse and recycling of wastewater and sludge from the LTCWRF; and 
  5. To enable the LTCWRF to comply with its NPDES permit conditions, sludge use and disposal requirements, and any other Federal or State laws to which the LTCWRF is subject. 

ACWWA Pretreatment Program Details

  1. ACWWA Pretreatment Program requirements are found in Appendix C of the ACWWA Rules and Regulations https://acwwa.com/DocumentCenter/View/157/Appendix-C---Pretreatment-PDF.
  2. All industrial users within the ACWWA service area shall complete the ACWWA Wastewater Discharge Survey.
  3. Pretreatment related questions or concerns may contact the ACWWA Pretreatment Coordinator at pretreatment@acwwa.com.
  4. Slug discharge or emergency related notifications may contact the ACWWA LTCWRF at 303-886-3795.

ACWWA Pretreatment Program Reference Links

  1. Federal Rules: https://www.ecfr.gov/current/title-40/chapter-I/subchapter-N/part-403?toc=1
  2. State Rules: https://www.sos.state.co.us/CCR/GenerateRulePdf.do?ruleVersionId=7039&fileName=5%20CCR%201002-63
  3. Local Rules: https://acwwa.com/DocumentCenter/View/168/Rules-and-Regulations-PDF?bidId=
  4. USEPA National Pretreatment Program Overview: https://www.epa.gov/npdes/national-pretreatment-program-overview