| director prior to being placed in use.
(1) Individuals with the following credentials shall
be recognized as capable of conducting a customer service inspection
certification.
(A) Plumbing Inspectors and Water Supply Protection
Specialists licensed by the Texas State Board of Plumbing Examiners
(TSBPE).
(B) Customer service inspectors who have completed
a commission-approved course, passed an examination administered by
the executive director, and hold current professional license as a
customer service inspector.
(2) As potential contaminant hazards are discovered,
they shall be promptly eliminated to prevent possible contamination
of the water supplied by the public water system. The existence of
a health hazard, as identified in §290.47(f) of this title, shall
be considered sufficient grounds for immediate termination of water
service. Service can be restored only when the health hazard no longer
exists, or until the health hazard has been isolated from the public
water system in accordance with §290.44(h) of this title (relating
to Water Distribution).
(3) These customer service inspection requirements
are not considered acceptable substitutes for and shall not apply
to the sanitary control requirements stated in §290.102(a)(5)
of this title (relating to General Applicability).
(4) A customer service inspection is an examination
of the private water distribution facilities for the purpose of providing
or denying water service. This inspection is limited to the identification
and prevention of cross-connections, potential contaminant hazards,
and illegal lead materials. The customer service inspector has no
authority or obligation beyond the scope of the commission's regulations.
A customer service inspection is not a plumbing inspection as defined
and regulated by the TSBPE. A customer service inspector is not permitted
to perform plumbing inspections. State statutes and TSBPE adopted
rules require that TSBPE licensed plumbing inspectors perform plumbing
inspections of all new plumbing and alterations or additions to existing
plumbing within the municipal limits of all cities, towns, and villages
which have passed an ordinance adopting one of the plumbing codes
recognized by TSBPE. Such entities may stipulate that the customer
service inspection be performed by the plumbing inspector as a part
of the more comprehensive plumbing inspection. Where such entities
permit customer service inspectors to perform customer service inspections,
the customer service inspector shall report any violations immediately
to the local entity's plumbing inspection department.
(k) Interconnection. No physical connection between
the distribution system of a public drinking water supply and that
of any other water supply shall be permitted unless the other water
supply is of a safe, sanitary quality and the interconnection is approved
by the executive director.
(l) Flushing of mains. All dead-end mains must be flushed
at monthly intervals. Dead-end lines and other mains shall be flushed
as needed if water quality complaints are received from water customers
or if disinfectant residuals fall below acceptable levels as specified
in §290.110 of this title.
(m) Maintenance and housekeeping. The maintenance and
housekeeping practices used by a public water system shall ensure
the good working condition and general appearance of the system's
facilities and equipment. The grounds and facilities shall be maintained
in a manner so as to minimize the possibility of the harboring of
rodents, insects, and other disease vectors, and in such a way as
to prevent other conditions that might cause the contamination of
the water.
(1) Each of the system's ground, elevated, and pressure
tanks shall be inspected annually by water system personnel or a contracted
inspection service.
(A) Ground and elevated storage tank inspections must
determine that the vents are in place and properly screened, the roof
hatches closed and locked, flap valves and gasketing provide adequate
protection against insects, rodents, and other vermin, the interior
and exterior coating systems are continuing to provide adequate protection
to all metal surfaces, and the tank remains in a watertight condition.
(B) Pressure tank inspections must determine that the
pressure release device and pressure gauge are working properly, the
air-water ratio is being maintained at the proper level, the exterior
coating systems are continuing to provide adequate protection to all
metal surfaces, and the tank remains in watertight condition. Pressure
tanks provided with an inspection port must have the interior surface
inspected every five years.
(C) All tanks shall be inspected annually to determine
that instrumentation and controls are working properly.
(2) When pressure filters are used, a visual inspection
of the filter media and internal filter surfaces shall be conducted
annually to ensure that the filter media is in good condition and
the coating materials continue to provide adequate protection to internal
surfaces.
(3) When cartridge filters are used, filter cartridges
shall be changed at the frequency required by the manufacturer, or
more frequently if needed.
(4) All water treatment units, storage and pressure
maintenance facilities, distribution system lines, and related appurtenances
shall be maintained in a watertight condition and be free of excessive
solids.
(5) Basins used for water clarification shall be maintained
free of excessive solids to prevent possible carryover of sludge and
the formation of tastes and odors.
(6) Pumps, motors, valves, and other mechanical devices
shall be maintained in good working condition.
(7) Reverse osmosis or nanofiltration membrane systems
shall be cleaned, or replaced, in accordance with the allowable operating
conditions of the manufacturer and shall be based on one or more of
the following: increased salt passage, increased or decreased pressure
differential, and/or change in normalized permeate flow.
(8) Emergency generators must be appropriately tested
and maintained monthly under at least 30% load based on the manufacturer's
name plate kilowatt (kW) rating for at least 30 minutes, or as recommended
by the manufacturer, to ensure functionality during emergency situations.
(A) Emergency generators operated at water systems
serving 1,000 connections or greater must be maintained in accordance
with Level 2 maintenance requirements contained in the current National
Fire Protection Association (NFPA) 110 Standard and manufacturer's
recommendation. In addition, the water system must maintain an inventory
of operational maintenance items, lubricants, and coolants for critical
generator components.
(B) Emergency generators operated at water systems
serving fewer than 1,000 connections must be maintained according
to clauses (i) - (x) of this subparagraph, supplemented with any additional
requirements not listed below as prescribed in the manufacturer's
specifications, or Level 2 maintenance requirements contained in NFPA
110 Standard. In addition, the public water system must maintain an
inventory of operational maintenance items, lubricants, and coolants
for critical generator components.
(i) Prior to monthly generator start-up, inspect and
perform any needed maintenance on the generator fuel system.
(I) Document tank levels and inspect fuel tanks for
fuel contamination and condensation in the portion of the tank occupied
by air. If contamination is suspected, replace or polish the contaminated
fuel before use.
(II) Inspect fuel lines and fittings for breaks and
degradation. Replace fuel lines if needed.
(III) Inspect fuel filters and water separators for
water accumulation, clogging and sediment buildup. Replace fuel filters
and separators at the frequency recommended by the manufacturer, or
as needed.
(IV) Inspect fuel transfer pumps, float switches and
valves, where provided, between holding tanks and the generator to
verify that they are operating properly.
(V) Where provided, inspect fuel tank grounding rods,
cathodic and generator lightning protection for damage that may render
the protection ineffective.
(ii) While the generator is operating under load, inspect
the fuel pump to verify that it is operating properly.
(iii) Prior to monthly generator start up, inspect
and perform any needed maintenance on the generator lubrication system.
(I) Inspect oil lines and oil reservoirs for adequate
oil levels, leaks, breaks and degradation. Change oil at the frequency
recommended by the manufacturer.
(II) Grease all bearing components and grease fittings
at the frequency recommended by the manufacturer.
(iv) Prior to monthly generator start up, inspect and
perform any needed maintenance on the generator coolant system.
(I) Inspect the block heater, coolant lines and coolant
reservoirs for adequate coolant levels, leaks, breaks and degradation;
replace as needed.
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