30 Tex. Admin. Code § 217.52
An owner who plans to install a wastewater collection system located over the Edwards Aquifer recharge zone 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 §217.52 adopted to be effective August 28, 2008, 33 TexReg 6843.