30 Tex. Admin. Code § 330.177
The owner or operator may recirculate leachate or gas condensate derived from a landfill unit into a Type I landfill unit at the same facility if the Type I landfill unit is designed and constructed with a leachate collection system and a composite liner. The owner or operator shall make the procedure for leachate or gas condensate recirculation a part of the site operating plan. The owner or operator is not required to characterize leachate and gas condensate that is being recirculated into an approved Type I landfill unit. The owner or operator is not required to characterize leachate and gas condensate sent to a publicly owned treatment works or Resource Conservation and Recovery Act authorized facility beyond that required by the treatment facility.
30 Tex. Admin. Code § 330.177