Section 311.4 - Existing Facilities in Water Quality Areas(a) Any currently permitted treatment facility in the Lake Austin or Lake Travis water quality areas may continue operation in accordance with the terms and conditions of the existing permit for the facility and can apply for renewal of the permit unless the facility becomes substantially noncompliant or an expansion of the treatment facility is included in the application for renewal.(b) Any modification of a facility described in subsection (a) of this section that requires a permit amendment and which results in additional treatment capacity will also require treatment as described in § 311.3 of this title (relating to Wastewater Disposal) for the total wastewater flow from the permitted facility.(c) Any permitted facility not meeting its permit limitations because of overloading of sewage will be subject to amendment as described in § 305.62 of this title (relating to Amendment) in order to impose permit limitations consistent with § 311.3 of this title (relating to Wastewater Disposal).30 Tex. Admin. Code § 311.4
The provisions of this §311.4 adopted to be effective October 20, 1986, 11 TexReg 4164.