PUBLIC DRINKING WATER SUPPLY SYSTEM REQUIREMENTS.

(a) To preserve the public health, safety, and welfare, the commission shall ensure that public drinking water supply systems:

(1) supply safe drinking water in adequate quantities;

(2) are financially stable; and

(3) are technically sound.

(b) The commission shall encourage and promote the development and use of regional and areawide drinking water supply systems.

(c) Each public drinking water supply system shall provide an adequate and safe drinking water supply. The supply must:

(1) meet the requirements of Section 341.031 and commission rules; and

(2) provide a quantity of water or capacity of water sufficient to serve the number of connections served by the public drinking water supply system.

(c-1) Notwithstanding any other law, the commission by rule shall establish connection equivalency values for each meter size used to serve a recreational vehicle park, as defined by Section 13.087, Water Code, for use in determining the number of connections served by a public drinking water supply system that provides service through meters. When determining the number of connections, the commission may only consider service for which a meter has been installed that conforms with industry standards. The rules must:

(1) establish that eight recreational vehicle or cabin sites at a recreational vehicle park, whether occupied or not, are equivalent to one residential metered connection; and

(2) provide a variance from a connection equivalency value established under this subsection for a public drinking water supply system if actual system usage is more than 10 percent below the equivalency value.

(d) The commission shall consider compliance history in determining issuance of new permits, renewal permits, and permit amendments for a public drinking water system.

(e) The commission shall establish a system to provide automatic reminders to public drinking water supply systems about regular reporting requirements applicable to the systems under the federal Safe Drinking Water Act (42 U.S.C. Section 300f et seq.) and this chapter that relate to commission rules adopted under those laws. An automatic reminder provided under this subsection is a courtesy. A public drinking water supply system is responsible for complying with applicable regular reporting requirements regardless of whether the commission provides automatic reminders.