(a) Purpose. This chapter establishes the form and content of a certification to be attached to a plat application under Texas Local Government Code, §212.0101 or §232.0032, which requires certification that adequate groundwater is available for a proposed subdivision if groundwater under that land is to be the source of water supply. These rules do not replace:(1) other state and federal requirements applicable to public drinking water supply systems;(2) the authority of counties within designated priority groundwater management areas under Texas Water Code, §35.019; or(3) the authority of groundwater conservation districts under Texas Water Code, Chapter 36.(b) Transmittal of data. Copies of the information, estimates, data, calculations, determinations, statements, and certification required by §230.8 of this title (relating to Obtaining Site-Specific Groundwater Data), §230.9 of this title (relating to Determination of Groundwater Quality), §230.10 of this title (relating to Determination of Groundwater Availability), and §230.11 of this title (relating to Groundwater Availability and Usability Statements and Certification) must be provided with the certification to:(1) the executive administrator of the Texas Water Development Board, and(2) the applicable groundwater conservation district or districts.(c) Plat Attesting Form. The Plat Attesting Form (TCEQ-20983) must be submitted with the certification, attesting that copies of the information, estimates, data, calculations, determinations, statements, and the certification have been provided to:(1) the executive administrator of the Texas Water Development Board, and(2) the applicable groundwater conservation district or districts.