30 Tex. Admin. Code § 217.91
An owner who plans to install an alternative wastewater collection system located over the recharge zone of the Edwards Aquifer must design and install the system in accordance with Chapter 213 of this title (relating to Edwards Aquifer) in addition to these rules.
Source Note:The provisions of this §217.91 adopted to be effective August 28, 2008, 33 TexReg 6843.