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TCEQ Adopts Rules to Expand Use of Graywater

December 2016 – On Dec. 7, 2016, TCEQ commissioners adopted revisions to 30 Texas Administrative Code (TAC) Chapter 210, Use of Reclaimed Water, and Chapter 285, On-Site Sewage Facilities.

The adopted rules:

  • allow for a potential reduction in the OSSF drainfield size if the OSSF is used in conjunction with a reuse system;
  • move all graywater reuse rules to Chapter 210;
  • authorize the reuse of alternative onsite water;
  • authorize by rule the reuse of 400 gallons per day or more of graywater and alternative onsite water, unless directed by the TCEQ executive director to obtain an authorization;
  • add toilet and urinal flushing as an authorized use of graywater and alternative onsite water;
  • establish uses of and treatment standards for alternative onsite water similar to those for graywater;
  • allow spray irrigation at private residences under certain conditions;
  • incorporate nationally recognized treatment levels for total suspended solids and Escherichia coli (E. coli) for graywater and alternative onsite water when used for toilet and urinal flushing; and
  • revise bacteria limits from fecal coliform to E. coli throughout the rule.

The rules will be published in the Texas Register on Dec. 23, 2016, and effective on Dec. 29, 2016. To review the adopted rule visit www.tceq.texas.gov/rules/adopt.html.