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• <br />4W <br />r - <br />i <br />C. If any joint shows an appreciable amount of leakage, the jointing material <br />shall be removed and joint remade. If any pipe is defective, it shall be <br />{ removed and replaced. If the quantity of water required to maintain a <br />constant level in the sewer for one hour dotes not exceed 100 gallons per <br />inch of diameter per day per mile of sewer, and if all the leakage is not <br />confined to a few joints, the workmanship shall be considered satisfactory. <br />If the amount of leakage indicates defective joints or broken pipes, they <br />shall be corrected by the Contractor. <br />r <br />D. Pipe shall be tested for infiltration after the backfill has been placed. <br />Infiltration tests shall be made under the supervision of the County, and <br />the length of line to be tested shall be as directed by the County. The <br />allowable infiltration shall be 100 gallons per inch of diameter per day per <br />mile of sewer. <br />E. Rates of infiltration shall be determined by means of V -notch weirs, pipe <br />spigot, or by plugs in the end of the pipe, to be provided and installed by <br />the Contractor in an approved manner, and at such times and locations as <br />may be directed by the County. <br />F. If an inspection of the completed sewer or any part thereof shows any <br />manholes, pipes, or joints which allow the infiltration of water in a <br />noticeable stream or jet, defective work or material shall be replaced or <br />repaired, as directed. <br />G. Leakage between two adjacent manholes may be double the amount above <br />stated, provided the average leakage for a total length of any size does not <br />exceed the amount first stated, and provided there are no gushing or <br />spurting leaks. <br />H. All water used in testing and flushing shall be furnished at the <br />Contractor's expense. <br />1. The Contractor may use an air test in lieu of the exfiltration test as <br />described above. If he elects to do this, he shall submit his proposed <br />method to the County for approval. <br />J. If the results of the air test are unsatisfactory, as determined by the <br />County, the Contractor shall be required to perform the exfiltration test as <br />outlined above. <br />02660-4 <br />