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SECTION 5 – WATER WORKS <br />81 <br />5-4.2 QUALITY ASSURANCE (STATIC TEST AND DISINFECTION) <br />1. Testing Requirements <br />Examine each piece of pipe before installing. Remove all defective material from the site. Ductile iron <br />pipe shall be rung with a light hammer to detect cracks. <br />A South Bend Water Works employee must witness all static pressure tests and collect all bacteria <br />samples. No other results will be accepted. The South Bend Water Works requires three (3) working <br />days prior notice before any test. Each step must be completed before a bacteria test can be taken. The <br />water mains must be ready for static and bacteriological testing at the time specified. No bacteria <br />samples will be collected, or static pressure tests started, after noon on the designated day of testing. <br />During the inspection process, if any material needs to be replaced, the static pressure test must be <br />performed again to include the new material. <br />2. Prior to performing a static pressure test, the Contractor shall do the following: <br />As-Built drawings must be on file at the South Bend Water Works drafting office at least three (3) <br />working days prior to the static pressure test. These drawings must include all fire hydrants, main line <br />valves, hydrant valves, and curb stops. The Contractor must provide proper documentation on official <br />letterhead including a detailed list of material and total lengths installed. The drafting office is located <br />at 915 South Olive Street and the phone number is (574) 235-9279. <br />All hydrants will be live during a static pressure test. Table 6A from the AWWA Standard C600-99 <br />will be used to determine testing allowances. <br />All hoses used for flushing will have a South Bend Water Works approved backflow/cross connection <br />prevention device. All contractors must keep track of the amount of water used for flushing. All water <br />added to the water main must be from the South Bend municipal water system and water cannot be <br />added during the static pressure test per Table 6A, in the AWWA Standard 600, unless it can be <br />measured. <br />Pressure pipe shall be subjected to 150 pounds per square inch hydrostatic pressure test per AWWA <br />C600. Test each section by means of a pump connected thereto. All air shall be expelled from the pipe <br />by satisfactory means. The pump, connections, fittings, and all necessary labor and materials for <br />conducting the tests, shall be furnished by the Contractor. <br />Test all pipe after backfilling and prior to pavement placement. Pressure test shall not be less than two <br />(2) hours duration. Leakage is defined as the quantity of water required to maintain a pressure within <br />five (5) psi of the specified test pressure, after air has been expelled and the pipe filled with water. <br />Leakage permitted shall not exceed ten (10) gallons per inch of diameter per mile of pipe per day at <br />the specified pressure. <br />3. After a static pressure test, the Contractor shall do the following: <br />The Contractor shall have a form on official letterhead with the start time and pressure along with the <br />end time and pressure. The static pressure test is not official unless it is signed by a Water utility <br />representative.