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NOTES: <br /> 1. A temporary jumper connection is required at all connections between existing active <br /> water mains and proposed new water main improvements. <br /> ,r 2. The Temporary Jumper Detail (W-13) is to be used for filling any new water main of any <br /> size from the existing active water mains and for the flushing of new mains up to 6" <br /> diameter (2.5 FPS minimum velocity) and for pulling bacteriological samples from any <br /> new water main of any size. <br /> 3. The jumper connection shall be maintained until after the filling, flushing, testing and <br /> disinfection of the new main has been successfully completed and clearance for use from <br /> the Florida Department of Environmental Protection (FDEP) and other pertinent agencies <br /> has been received. Adequate thrust blocking and/or restraints shall be provided <br /> temporarily, as required. <br /> 4. Pipe and fittings used for connecting the new pipe to the existing pipe shall be disinfected <br /> prior to. installation in accordance with AWWA C651, LATEST EDITION. The tapping <br /> sleeve and exterior of the main to be tapped shall be disinfected by spraying or swabbing <br /> per section Two of AWWA C651. The use of tablets is strictly prohibited. <br /> 5. The Jumper connection shall also be used to maintain a minimum pressure of 20 PSI in <br /> the new mains continuously after disinfection and until FDEP clearance letter is obtained. <br /> 6. The Contractor shall provide documentation demonstrating that the double check <br /> backflow prevention device is in good working order at the time of installation, and <br /> provide documentation that the double check backflow prevention device has been tested <br /> in the last 12 months, and is in good working order one year from installation by a <br /> qualified backflow technician as approved by IRCDUS. <br /> 7. Except as required to flush lines greater than 6" diameter, the tie-in valve shall remain <br /> closed and shall be locked in the closed position by the utility company. The tie-in valve <br /> shall remain locked closed until the new system has been cleared for use by the FDEP <br /> and all other pertinent agencies. <br /> 8. Upon receipt of clearance for use by FDEP and all other pertinent agencies, the <br /> Contractor shall remove the temporary jumper connection. The corporation stops are to <br /> be closed and plugged with 2" brass or PVC stops. <br /> 9. All installation and maintenance of the temporary jumper connection and associated <br /> backflow prevention device, fittings, valves, etc., shall be the responsibility of the <br /> Contractor. <br /> 10. If the water main to be flushed is greater than 6" diameter or such length that a full pipe <br /> flush at the 2.5 FPS velocity cannot be accomplished, the following procedure shall be <br /> utilized. <br /> a) Install pressure gauges as indicated on Temporary Jumper Detail (W-13). <br /> b) Open all downstream valves in the new system prior to flush. <br /> c) Flush new water main thru tie-in valve maintaining a 10+/- PSI pressure <br /> differential between gauges during flush. <br /> d) IRCDUS personnel, in the presence of the Engineer of Record shall operate tie- <br /> in valve to insure that the required pressure differential is maintained. <br /> -RRT- <br /> INDIAN RIVER COUNTY ��¢IVERC'�G TEMPORARY DRAWING <br /> DEPARTMENT OF yz JUMPER DETAIL <br /> UTILITIES SERVICESNaTEs W - 14 <br /> �LoR1�� POACH M4 <br /> I X1.A .10 . <br />