(a) General. After May 1, 1964, no building commercial developments shall be constructed, enlarged, or moved unless the owner thereof shall make provision for self-sustaining water supply system, except such systems shall not be required for commercial developments, dwellings and single unit apartments with connected access to the portable water system. This system shall consist of a well or rainwater collection area and cistern.
(b) Cistern capacity. (1) Cisterns for dwellings, apartments and hotels shall have a minimum usable capacity of 10 gallons for each square foot of roof area for buildings of one story and 15 gallons for each square foot of roof area for buildings of two or more stories. If a dwelling shall have access to the potable water system and is verified by appropriate WAPA officials and service is installed, no cistern will be required.(2) All other buildings shall have cisterns with a minimum usable capacity of 4 ½ gallons for each square foot of roof area except that churches and warehouses shall not be required to conform to this standard. If at any time buildings formerly used for churches and warehouses are converted to other uses compliance shall be required.(3) Where a building has combined occupancy, such as apartment and store, required cistern capacity shall be 10 gallons for each square foot of roof area.(4) One cistern may serve several buildings provided that its capacity is at least equal to the sum of the minimum required capacities for each building according to its use and provided the cistern is not used for a fire sprinkler system.(5) Where fire sprinklers are provided, the cistern shall meet the requirements for water supply provided in Chapter 6, NFPA 13D Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes.
(1) Cisterns for dwellings, apartments and hotels shall have a minimum usable capacity of 10 gallons for each square foot of roof area for buildings of one story and 15 gallons for each square foot of roof area for buildings of two or more stories. If a dwelling shall have access to the potable water system and is verified by appropriate WAPA officials and service is installed, no cistern will be required.
(2) All other buildings shall have cisterns with a minimum usable capacity of 4 ½ gallons for each square foot of roof area except that churches and warehouses shall not be required to conform to this standard. If at any time buildings formerly used for churches and warehouses are converted to other uses compliance shall be required.
(3) Where a building has combined occupancy, such as apartment and store, required cistern capacity shall be 10 gallons for each square foot of roof area.
(4) One cistern may serve several buildings provided that its capacity is at least equal to the sum of the minimum required capacities for each building according to its use and provided the cistern is not used for a fire sprinkler system.
(5) Where fire sprinklers are provided, the cistern shall meet the requirements for water supply provided in Chapter 6, NFPA 13D Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes.
(c) Cisterns—Specifications. (1) Cisterns shall be constructed of metal, masonry, concrete or other materials approved by the Commissioner and be maintained in a watertight and mosquito and rodent proof condition at all times. Metal cisterns shall be placed above ground level unless approved for underground installation in the building permit.(2) Cisterns shall be located at a point free from flooding.(3) An overflow of cross-section area at least equal to the combined cross-section areas of all inlets shall be provided on each cistern.(4) Cisterns used for potable water shall meet the following individual water supply requirements for water quality, disinfection of system, and pumps.(i) Water from an individual water supply shall be approved by the Commissioner prior to connection to the plumbing system.(ii) After construction, the new potable water supply system shall be purged of deleterious matter and disinfected prior to utilization. The method to be followed shall be that prescribed by the health authority or water purveyor having jurisdiction or, in the absence of a prescribed method, the procedure described in either AWWA C651 or AWWA C652, or as described in this section. This requirement shall apply to “on-site” or “in-plant” fabrication of a system or to a modular portion of a system.(1) The pipe system shall be flushed with clean, potable water until dirty water does not appear at the points of outlet.(2) The system or part thereof shall be filled with a water/chlorine solution containing not less than 50 parts per million (50 mg/L) of chlorine, and the system or part thereof shall be valved off and allowed to stand for 24 hours; or the system or part thereof shall be filled with a water/chlorine solution containing not less than 200 parts per million (200 mg/L) of chlorine and allowed to stand for 3 hours.(3) Following the required standing time, the system shall be flushed with clean potable water until the chlorine is purged from the system.(4) The procedure shall be repeated where shown by a bacteriological examination that contamination remains present in the system.(iii) Pumps shall be rated for the transport of potable water. Pumps in an individual water supply system shall be constructed and installed so as to prevent contamination from entering a potable water supply through the pump units. Pumps shall be sealed to the well casing or covered with a water-tight seal. Pumps shall be designed to maintain a prime and installed such that ready access is provided to the pump parts of the entire assembly for repairs. The pump room or enclosure around a well pump shall be drained.
(1) Cisterns shall be constructed of metal, masonry, concrete or other materials approved by the Commissioner and be maintained in a watertight and mosquito and rodent proof condition at all times. Metal cisterns shall be placed above ground level unless approved for underground installation in the building permit.
(2) Cisterns shall be located at a point free from flooding.
(3) An overflow of cross-section area at least equal to the combined cross-section areas of all inlets shall be provided on each cistern.
(4) Cisterns used for potable water shall meet the following individual water supply requirements for water quality, disinfection of system, and pumps.(i) Water from an individual water supply shall be approved by the Commissioner prior to connection to the plumbing system.(ii) After construction, the new potable water supply system shall be purged of deleterious matter and disinfected prior to utilization. The method to be followed shall be that prescribed by the health authority or water purveyor having jurisdiction or, in the absence of a prescribed method, the procedure described in either AWWA C651 or AWWA C652, or as described in this section. This requirement shall apply to “on-site” or “in-plant” fabrication of a system or to a modular portion of a system.(1) The pipe system shall be flushed with clean, potable water until dirty water does not appear at the points of outlet.(2) The system or part thereof shall be filled with a water/chlorine solution containing not less than 50 parts per million (50 mg/L) of chlorine, and the system or part thereof shall be valved off and allowed to stand for 24 hours; or the system or part thereof shall be filled with a water/chlorine solution containing not less than 200 parts per million (200 mg/L) of chlorine and allowed to stand for 3 hours.(3) Following the required standing time, the system shall be flushed with clean potable water until the chlorine is purged from the system.(4) The procedure shall be repeated where shown by a bacteriological examination that contamination remains present in the system.(iii) Pumps shall be rated for the transport of potable water. Pumps in an individual water supply system shall be constructed and installed so as to prevent contamination from entering a potable water supply through the pump units. Pumps shall be sealed to the well casing or covered with a water-tight seal. Pumps shall be designed to maintain a prime and installed such that ready access is provided to the pump parts of the entire assembly for repairs. The pump room or enclosure around a well pump shall be drained.
(i) Water from an individual water supply shall be approved by the Commissioner prior to connection to the plumbing system.
(ii) After construction, the new potable water supply system shall be purged of deleterious matter and disinfected prior to utilization. The method to be followed shall be that prescribed by the health authority or water purveyor having jurisdiction or, in the absence of a prescribed method, the procedure described in either AWWA C651 or AWWA C652, or as described in this section. This requirement shall apply to “on-site” or “in-plant” fabrication of a system or to a modular portion of a system.(1) The pipe system shall be flushed with clean, potable water until dirty water does not appear at the points of outlet.(2) The system or part thereof shall be filled with a water/chlorine solution containing not less than 50 parts per million (50 mg/L) of chlorine, and the system or part thereof shall be valved off and allowed to stand for 24 hours; or the system or part thereof shall be filled with a water/chlorine solution containing not less than 200 parts per million (200 mg/L) of chlorine and allowed to stand for 3 hours.(3) Following the required standing time, the system shall be flushed with clean potable water until the chlorine is purged from the system.(4) The procedure shall be repeated where shown by a bacteriological examination that contamination remains present in the system.
(1) The pipe system shall be flushed with clean, potable water until dirty water does not appear at the points of outlet.
(2) The system or part thereof shall be filled with a water/chlorine solution containing not less than 50 parts per million (50 mg/L) of chlorine, and the system or part thereof shall be valved off and allowed to stand for 24 hours; or the system or part thereof shall be filled with a water/chlorine solution containing not less than 200 parts per million (200 mg/L) of chlorine and allowed to stand for 3 hours.
(3) Following the required standing time, the system shall be flushed with clean potable water until the chlorine is purged from the system.
(4) The procedure shall be repeated where shown by a bacteriological examination that contamination remains present in the system.
(iii) Pumps shall be rated for the transport of potable water. Pumps in an individual water supply system shall be constructed and installed so as to prevent contamination from entering a potable water supply through the pump units. Pumps shall be sealed to the well casing or covered with a water-tight seal. Pumps shall be designed to maintain a prime and installed such that ready access is provided to the pump parts of the entire assembly for repairs. The pump room or enclosure around a well pump shall be drained.
(d) Gutters and downspouts. Adequate gutters and downspouts shall be installed on all buildings for conducting water into cisterns. Gutters and downspouts shall be kept in good repair and free of dirt and debris at all times. Gutters and downspouts installed for conducting water into cisterns shall meet all requirements in the applicable codes and standards referenced in this chapter, specifically the capability to resist the wind loads.
(e) Wells. (1) Wells used for potable water shall meet the individual water supply requirements for water quantity, disinfection of system and pumps referred to in Section 308 (c)(4).(2) Where fire sprinklers are provided, the well shall meet the requirements for water supply provided in Chapter 6, NFPA 13D Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes(3) A well supplying a safe, palatable, continuously adequate water supply may be used in lieu of a cistern. Such a well shall be dug and its compliance with the above requirements demonstrated to the Commissioner before a permit may be issued for the construction of a building without a cistern. The Department of Health shall certify as to the safety of the water for drinking purposes.(4) One cistern may serve several buildings provided that its capacity is at least equal to the sum of the minimum required capacities for each building according to its use and provided the cistern is not used for a fire sprinkler system.(5) If at any time after approval, the well shall no longer furnish a safe, palatable, and continuously adequate water supply, the owner of the building shall build a cistern of capacity as elsewhere specified in this chapter.
(1) Wells used for potable water shall meet the individual water supply requirements for water quantity, disinfection of system and pumps referred to in Section 308 (c)(4).
(2) Where fire sprinklers are provided, the well shall meet the requirements for water supply provided in Chapter 6, NFPA 13D Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes
(3) A well supplying a safe, palatable, continuously adequate water supply may be used in lieu of a cistern. Such a well shall be dug and its compliance with the above requirements demonstrated to the Commissioner before a permit may be issued for the construction of a building without a cistern. The Department of Health shall certify as to the safety of the water for drinking purposes.
(4) One cistern may serve several buildings provided that its capacity is at least equal to the sum of the minimum required capacities for each building according to its use and provided the cistern is not used for a fire sprinkler system.
(5) If at any time after approval, the well shall no longer furnish a safe, palatable, and continuously adequate water supply, the owner of the building shall build a cistern of capacity as elsewhere specified in this chapter.