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DocuSign Envelope ID:81 E05E8E-EED7-43D3-8B8A-0811 OE72140A <br /> SECTION 33 34 00 - FORCE MAINS <br /> PART 5 -TESTING AND CLEAN-UP <br /> All pipelines shall be tested in accordance with the following requirements: <br /> 5.1 PRESSURE TESTING <br /> A. Prior to pressure testing, the Contractor shall pig the line with a properly sized pig. The <br /> Contractor shall provide the necessary water for flushing the pig through the entire pipe <br /> length in order to remove debris and trash from the line. <br /> B. Each section of the pipeline shall be subjected to and successfully meet a pressure test <br /> of 150 psi. The line shall be slowly filled with water and all air expelled through the air <br /> valves or other means. A suitable test pump, furnished by the Contractor, shall be <br /> connected to the line by means of a tap in the line, or other suitable methods, and the <br /> proper test pressure slowly applied to the line. The pressure test shall be maintained for <br /> at least one hour, at full test pressure. Leaks, if found, shall be immediately repaired. <br /> C. After the pressure test is complete, a leakage test shall be conducted. Leakage test shall <br /> be conducted by measuring, by suitable and accurate methods (measuring devices to be <br /> furnished by the Contractor), the amount of water which enters the test section under <br /> maximum operating pressures for a period of at least two hours. <br /> D. No pressure pipe installation will be accepted until leakage is less than the number of <br /> gallons per hour for each section tested, as determined by the following formula: <br /> L = ND(P)1/2 <br /> 3700 <br /> L- Allowable leakage, in gals. per hour <br /> N - Number of joints in the length of line under test <br /> D - Nominal diameter of the pipe, in inches <br /> P - Average test pressure, in psi <br /> Should any test disclose leakage greater than that allowed above, the Contractor shall, at <br /> his own expense, locate and repair the defect until the leakage is within the specified <br /> allowance. <br /> E. Water for testing one times the volume of the new lines total will be furnished by <br /> the Owner at no cost to the Contractor after which normal water usage charges will <br /> be made. Contractor shall furnish all necessary pipe or hose extensions or <br /> transportation to the point of use and shall exercise care in the use of water. <br /> 5.2 CLEAN-UP <br /> A. All pipeline rights-of-way and pipework areas shall be cleaned up and left in satisfactory <br /> condition. <br /> B. Clean-up of work along highways or roads shall be performed immediately upon <br /> completion of the backfill operation. Pipe laying shall be stopped at any time that clean- <br /> up work lags and shall not be resumed until clean-up progress is satisfactory to the <br /> Engineer. <br /> Orange County DAA PN R00592-225N2 <br /> Walnut Grove Wastewater System January, 2021 <br /> 33 34 00-18 <br />