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The cost of constructing said water mains is the agreed sum of #2,783*00. 2. Said water mains shall he constructed of 6n Class 150 B & S cast iron pipe and shall he in accordance with Federal specifications WWP 421 Type 1. All joints shall he cement. All fittings shall he new, all hell cast iron equal to ASA Standard Class 250. All valves shall he double disk, parallel seat hronze mountings conforming to AWWA standards, not less than 175 lhs., and all valve hoxes shall he of cast iron of appropriate size for each valve. Unless otherwise approved hy a duly authorized repre­sentative of the Company, all pipe valves and fittings shall he manufactured hy the Pacific States Cast Iron Pipe Company or Mueller Company* All pipe lines shall he chlorinated in accordance with AWWA specifications, shall he subject to the approval and acceptance of State and City Health Authorities, and shall he constructed at an elevation to he designated hy a duly authorized representative of the Company, hut in no event shall there he less than 36w of covering over such water mains. All workmanship, material and installation of said water mains shall he subject to the approval and acceptance hy a duly authorized representative of the Company. 3. At Suhdivider,s sole cost and expense to survey and accurately stake upon the ground the line along which said water mains are to he laid, and to indicate street and alley grades by appropriate stakes, 4. To furnish the Company easements, satisfactory in form, where pipe lines are to he laid in other than dedicated streets - 2 -