| (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.
(e) Operation by trained and licensed personnel. Except
as provided in paragraph (1) of this subsection, the production, treatment,
and distribution facilities at the public water system must be operated
at all times under the direct supervision of a water works operator
who holds an applicable, valid license issued by the executive director.
Except as provided in paragraph (1) of this subsection, all public
water systems must use a water works operator who holds an applicable,
valid license issued by the executive director to meet the requirements
of this subsection. The licensed operator of a public water system
may be an employee, contractor, or volunteer.
(1) Transient, noncommunity public water systems are
exempt from the requirements of this subsection if they use only groundwater
or purchase treated water from another public water system.
(2) All public water systems that are subject to the
provisions of this subsection shall meet the following requirements.
(A) Public water systems shall not allow new or repaired
production, treatment, storage, pressure maintenance, or distribution
facilities to be placed into service without the prior guidance and
approval of a licensed water works operator.
(B) Public water systems shall ensure that their operators
are trained regarding the use of all chemicals used in the water treatment
plant. Training programs shall meet applicable standards established
by the Occupational Safety and Health Administration or the Texas
Hazard Communication Act, Texas Health and Safety Code, Chapter 502.
(C) Public water systems using chlorine dioxide shall
place the operation of the chlorine dioxide facilities under the direct
supervision of a licensed operator who has a Class "C" or higher license.
(D) Effective September 1, 2016, reverse osmosis or
nanofiltration membrane systems must have operators that have successfully
completed at least one executive director-approved training course
or event specific to the operations and maintenance of reverse osmosis
or nanofiltration membrane treatment.
(3) Systems that only purchase treated water shall
meet the following requirements in addition to the requirements contained
in paragraph (2) of this subsection.
(A) Purchased water systems serving no more than 250
connections must use an operator who holds a Class "D" or higher license.
(B) Purchased water systems serving more than 250 connections,
but no more than 1,000 connections, must use an operator who holds
a Class "C" or higher license.
(C) Purchased water systems serving more than 1,000
connections must use at least two operators who hold a Class "C" or
higher license and who each work at least 16 hours per month at the
public water system's treatment or distribution facilities.
(4) Systems that treat groundwater and do not treat
surface water or groundwater that is under the direct influence of
surface water shall meet the following requirements in addition to
the requirements contained in paragraph (2) of this subsection.
(A) Groundwater systems serving no more than 250 connections
must use an operator with a Class "D" or higher license.
(B) Groundwater systems serving more than 250 connections,
but no more than 1,000 connections, must use an operator with a Class
"C" or higher groundwater license.
(C) Groundwater systems serving more than 1,000 connections
must use at least two operators who hold a Class "C" or higher groundwater
license and who each work at least 16 hours per month at the public
water system's production, treatment, or distribution facilities.
(5) Systems that treat groundwater that is under the
direct influence of surface water must meet the following requirements
in addition to the requirements contained in paragraph (2) of this
subsection.
(A) Systems which serve no more than 1,000 connections
and utilize cartridge or membrane filters must use an operator who
holds a Class "C" or higher groundwater license and has completed
a four-hour training course on monitoring and reporting requirements
or who holds a Class "C" or higher surface water license and has completed
the Groundwater Production course.
(B) Systems which serve more than 1,000 connections
and utilize cartridge or membrane filters must use at least two operators
who meet the requirements of subparagraph (A) of this paragraph and
who each work at least 24 hours per month at the public water system's
production, treatment, or distribution facilities.
(C) Systems which serve no more than 1,000 connections
and utilize coagulant addition and direct filtration must use an operator
who holds a Class "C" or higher surface water license and has completed
the Groundwater Production course or who holds a Class "C" or higher
groundwater license and has completed a Surface Water Production course.
Effective January 1, 2007, the public water system must use at least
one operator who has completed the Surface Water Production I course
and the Surface Water Production II course.
(D) Systems which serve more than 1,000 connections
and utilize coagulant addition and direct filtration must use at least
two operators who meet the requirements of subparagraph (C) of this
paragraph and who each work at least 24 hours per month at the public
water system's production, treatment, or distribution facilities.
Effective January 1, 2007, the public water system must use at least
two operators who have completed the Surface Water Production I course
and the Surface Water Production II course.
(E) Systems which utilize complete surface water treatment
must comply with the requirements of paragraph (6) of this subsection.
(F) Each plant must have at least one Class "C" or
higher operator on duty at the plant when it is in operation or the
plant must be provided with continuous turbidity and disinfectant
residual monitors with automatic plant shutdown and alarms to summon
operators so as to ensure that the water produced continues to meet
the commission's drinking water standards during periods when the
plant is not staffed.
(6) Systems that treat surface water must meet the
following requirements in addition to the requirements contained in
paragraph (2) of this subsection.
Cont'd... |
