NFPA 1142-2001 Standard on Water Supplies for Suburban and Rural Fire Fighting.
1.3 General. 1.3.1 The requirements of Chapters 4 through 7 shall be used for determining the minimum amount ofwater required for fire suppression. Chapter 9 on dry hydrant construction is performance oriented and shall allow the authority having ju- risdiction latitude in specifying the method by which water supplies are provided, considering local conditions and needs. 1.3.2* The water requirements developed by this standard are performance oriented and shall be considered minimum in scope. The required water determined by the water supply officer shall be delivered to the fire scene. (SeeAnnexes A and B.) The authority having jurisdiction shall be permitted to de- termine thatadditional water supplies are warranted. Annex G contains water supply recommendations that can be useful where the authority having jurisdiction determines additional water supplies are necessary.
7.3.2 The minimum water supply required for structure with exposure hazards specified in 7.3.1 shall not be less than 3000 gal (11,355 L). [SeeTableH.1.4(b).] 7.4 Structures with Automatic Sprinkler Protection. 7.4.1 The authority having jurisdiction shall be permitted to waive the water supply required by this standard when a struc- ture is protected by an automatic sprinkler system that fully meets the requirements ofNFPA13, StandardfortheInstallation of Sprinkler Systems; NFPA 13D, Standard for the Installation of SprinklerSystems in One- and Two-Family Dwellings and Manufac- tured Homes; or NFPA 13R, Standard forthe Installation ofSprin- kler Systems in Residential Occupancies up to and Including Four Stories in Height. (SeeAnnex F.) 7.4.2 If a sprinkler system protecting a building does not fully meet the requirements of NFPA 13, NFPA 13D, or NFPA 13R, a water supply shall be provided in accordance with this standard. 7.5 Structures with Other Automatic Fire Suppression Systems. For any structure fully or partially protected by an au- tomatic fire suppression system otherthan as specified in Section 7.4, the authority having jurisdiction shall determine the minimum water supply required for fire-fighting purposes.
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