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WA9601-CS000502 (2)RULES TEXAS NATURAL RESOURCE CONSERVATION COMMISSION (2/99) 290-49 private water distribution facilities installed on or after (o) Well logs. Copies of well material July 1, 1988. setting data, geological log, sealing information (pres- (4) These customer service in- sure cementing and surface protection), disinfection spection requirements are not considered acceptable information, microbiological sample results and a substitutes for and shall not apply to the sanitary chemical analysis report of a representative sample of control requirements stated in §290.115(5 ) of this title. water from the well shall be kept on file. (5) AcustomerseB'iceinspection (p) Maintenance requirements for is an examination of the private water distribution faci- pressure filters and for ground storage, elevated lities for the purpose of providing or denying water storage, and pressure tanks. Each pressure filter service. This inspection is limited to the identification and each of the system's ground, elevated and pres- and prevention of cross connections. potential contam- sure tanks shall be inspected annually by water sys- inant hazards and illegal lead materials. The customer tem personnel or a contracted inspection service. The service inspector has no authority, and no obligation, results of these inspections shall be recorded and beyond the scope of the commission's regulations. A maintained for at least five years. The results must be customer service inspection is not a plumbing inspec- available for review by Commission staff during in- tion as defined and regulated by the Texas State Board spections. of Plumbing Examiners (TSBPE). A customer service (1) Ground and elevated storage inspector is not permitted to perform plumbing inspec- tank inspections must determine that the vents are in tions. State statutes and TSBPE adopted rules require place and properly screened, the roof hatches closed that TSBPE licensed plumbing inspectors perform and locked, flap valves and gasketing provide ade- plumbing inspections of all new plumbing and altera- quate protection against insects, rodents and other tions or additions to existing plumbing within the vermin, the interior and exterior coating systems are municipal limits of all cities, towns and villages with continuing to provide adequate protection to all metal 5,000 or more inhabitants or within smaller, like enti- surfaces, and that the tank remains in a watertight condition. ties which have adopted the Plumbing License Law by (2) Pressure tank inspection must ordinance. Such entities may stipulate that the custom- determine that the pressure release device and pres- er service inspection be performed by the plumbing sure gauge are working properly, the air-water ratio is inspector as a part of the more comprehensive plumb- being maintained at the proper level, the exterior coat- ing inspection. Where such entities permit customer ing systems are continuing to provide adequate pro- service inspectors to perform customer service inspec- tection to all metal surfaces, and that the tank remains tions, the customer service inspector should report any in a watertight condition. Pressure tanks provided violations immediately to the local enti~"s plumbing with an inspection port must have the interior surface inspection department. inspected every five years. (k) Interconnection. No physical con- (3) When pressure filters are nection between the distribution system of a public used, a visual inspection of the filter media and in- drinking water supply and that of any other water sup- ternal filter surfaces shall be conducted annually to ply shall be permitted unless the other water supply is ensure that the filter media is in good condition and of a safe, sanitary. quality and the interconnection is the coating materials continue to provide adequate approved by the executive director. protection to internal surfaces. (1) Flushing of mains. All dead-end (q) Filter backwashing at surface mains must be flushed at monthly intervals or more water treatment plants. Filters must be backwashed frequently if water quality complaints are received when a loss of head differential of six to ten feet is from water customers. experienced between the in~uent and effluent loss of (m) Housekeeping and maintenance. A head gauges or as often as necessary to maintain ac- program shall be initiated to facilitate cleanliness and ceptable filtered water turbidity levels. to improve the general appearance of all plant facili- (r) Data on water system ownership ties. and management. The commission shall be provided (n) Distribution system map. The map with information regarding water system ownership of the distribution system shall be continuously up- and management. dated so that valves and mains may be easily located (1) When a water system changes during emergencies. ownership, a written notice of the transaction must be © RPC, Inc. 1999