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LAS VEGAS. NEVADA RECOMMENDATIONS I NOTE: The following recommendations are based on standard fire protection requirements for your city. They are designed to aid officials in planning future improve­ments. It is not expected that all of these suggestions can be completed immediately, but definite plans should be made for continued steady improvement. Those marked with an asterisk ’(*) are of greatest importance at this time, and their early adoption is strongly urged. IT IS RECOMMENDED: WATER SUPPLY 1. That records and plans of all structures and oper­ation of the system be kept complete, in detail, up to date, in convenient form, in duplicate, and safely filed. *2. That additional mains be installed to the mercantile district: these mains to be of adequate size and so lo­cated as to concentrate full required fire flow to any part of the district during any five day period of maxi­mum daily consumption conditions. Required fire flow for Las Vegas in its present stage of growth will be 4,750 g.p.m. in the principal mercantile 500 district and to 2500 g.p.m. in residential and apartment districts, according to size, construction and spacing of buildings. 3* That arterial, lateral and gridiron mains be laid in proper locations and of adequate size to concentrate in any section of town the fire flow required for that dis­trict, and distribution mains supplying hydrants, in gen­eral, be 6-inch, in no case less than 5-inch, and fully circulating and cross connected at frequent intervals. 4. That gate valves be so located that any single break, accident, or repair will not necessitate shutting from service a length of pipe greater than 500 feet in the mercantile or high value district, or 800 feet elsewhere, and will not necessitate shutting down an artery. *5. That standard hydrants with 6-inch barrel and 6-inch gated connection to street main be used in all cases. *6. That sufficient hydrants be installed to provide a maximum distribution of one hydrant for each 120,000 sq. ft. of built-up area.