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flanges shall be designed to prevent corrosion of the threads from <br /> outside . The back of the hub shall be caulked where the hub threads <br /> joint with the pipe . <br /> 5 . Valve Box Adjustments : <br /> Cost of valve nut extenders shall be included in cost of valve box <br /> adjustments where needed . <br /> E . Disinfecting Potable Water Pipelines <br /> Before being placed in service , all potable water pipelines shall be <br /> chlorinated in accordance with the latest edition of AWWA C-651 , <br /> " Standard Procedure for Disinfecting Water Mains" , except that the use of <br /> tablets is strictly prohibited . The procedure shall be approved by the <br /> Engineer . The location of the chlorination and sampling points will be as <br /> specified by the Florida Department of Environmental Protection , Water <br /> Distribution System Permit . Taps for chlorination and sampling shall be <br /> uncovered and backfilled by the Contractor, as required . <br /> SECTION 02670 FLUSHING, TESTING, AND DISINFECTION <br /> PART 1 - GENERAL <br /> 1 . 01 WORK INCLUDED <br /> A . Flushing , Pressure Testing , and Disinfection of all piping systems . <br /> B . Contractor shall furnish all necessary pumps , hoses , piping , fittings , meters , <br /> gauges , chemicals and labor to conduct specified testing . <br /> C . Testing shall be repeated at the Contractor' s expense until satisfactory results <br /> are achieved . <br /> D . Refer the specific chemical system specification section for additional flushing <br /> and testing procedures . <br /> 1 . 02 RELATED REQUIREMENTS SPECIFIED ELSEWHERE <br /> A . Section 1000 — Water and Sewer Utilities <br /> 1 . 03 REFERENCES <br /> A . ANSI/AWWA C651 - Standard for Disinfecting Water Mains . <br /> 1 . 04 SUBMITTALS <br /> A . Test Reports : Indicate results comparative to specified requirements . <br /> Submit two (2 ) copies of test results to Engineer in accordance with <br /> Submittal specifications . <br /> 1 . 05 QUALITY ASSURANCE <br /> GENERAL PROVISIONS <br /> 01025- 18 <br /> F:\Engineering\Capital Projects\0216-12th Street Between 16th Avenue and 11th Place\0216 Bid Documents\DIVISION 2 - Technical <br /> Provisions .doc <br />