Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 290 - PUBLIC DRINKING WATER › Subchapter D - RULES AND REGULATIONS FOR PUBLIC WATER SYSTEMS › Section 290.46 - Minimum Acceptable Operating Practices for Public Drinking Water Systems

Current through Reg. 49, No. 28; July 12, 2024
(a) General. When a public drinking water supply system is to be
											  established, plans shall be submitted to the executive director for review and approval prior to the
											  construction of the system. All public water systems are to be constructed in conformance with the
											  requirements of this subchapter and maintained and operated in accordance with the following minimum
											  acceptable operating practices. Owners and operators shall allow entry to members of the commission and
											  employees and agents of the commission onto any public or private property at any reasonable time for the
											  purpose of inspecting and investigating conditions relating to public water systems in the state including
											  the required elements of a sanitary survey as defined in §
										290.38 of this title (relating to Definitions). Members,
											  employees, or agents acting under this authority shall observe the establishment's rules and regulations
											  concerning safety, internal security, and fire protection, and if the property has management in residence,
											  shall notify management or the person then in charge of his presence and shall exhibit proper
											  credentials.
(b) Microbiological. Submission of samples for
											  microbiological analysis shall be as required by Subchapter F of this chapter (relating to Drinking Water
											  Standards Governing Drinking Water Quality and Reporting Requirements for Public Water Systems).
											  Microbiological samples may be required by the executive director for monitoring purposes in addition to the
											  routine samples required by the drinking water standards. These samples shall be submitted to an accredited
											  laboratory. (A list of the accredited laboratories can be obtained by contacting the executive director.) The
											  samples shall be submitted to the executive director in a manner prescribed by the executive
											  director.
(c) Chemical. Samples for chemical analysis shall be
											  submitted as directed by the executive director.
(d) Disinfectant
											  residuals and monitoring. A disinfectant residual must be continuously maintained during the treatment
											  process and throughout the distribution system.
(1) Disinfection equipment
											  shall be operated and monitored in a manner that will assure compliance with the requirements of §
											290.110 of this title (relating to Disinfectant
											  Residuals).
(2) The disinfection equipment shall be operated to
											  maintain the following minimum disinfectant residuals in each finished water storage tank and throughout the
											  distribution system at all times:
(A) a free chlorine residual of 0.2
											  milligrams per liter (mg/L); or
(B) a chloramine residual of 0.5
											  mg/L (measured as total chlorine) for those systems that distribute chloraminated water.