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8. All Direct Expansion systems shall be constructed with catholic protection <br /> unless testing conducted in accordance with Part C (9) (c) of this Section <br /> indicates that all pH test results are within the range of 5.5 to 11.0 <br /> standard units. Catholic protection, if required, shall be maintained at all <br /> times in accordance with the manufacturer's specifications throughout the <br /> operating life of the well(s). <br /> 9. Testing requirements are as follows: <br /> a. Closed loop tubing shall pass a pressure test on-site prior to <br /> installation into the borehole. Any closed loop tubing that has a <br /> measurable leak shall either not be used or have the leaks located and <br /> repaired plus successfully pass a subsequent pressure test prior to <br /> installation. <br /> b. The closed loop well system shall pass a pressure test after installation <br /> and prior to operation. Any pressure fluctuation other than that due to <br /> thermal expansion and contraction of the testing medium shall be <br /> considered a failed test. Any leaks shall be located and repaired prior <br /> to operating the system. <br /> c. For Direct Expansion type wells, drilling cuttings shall be tested for <br /> pH at a frequency of at least every 10 feet of boring length using a pH <br /> meter that has been calibrated prior to use according to the <br /> manufacturer's instructions. A copy of the results of these tests shall <br /> be made available to the Orange County Health Department. <br /> 10. The well(s) shall be grouted within seven days after drilling is complete or <br /> before the drilling equipment leaves the site, whichever occurs first. The well <br /> contractor shall give the OCHD at least 24 hours prior notification if more <br /> than three closed-loop geothermal wells are to be grouted in a given day. <br /> Prior to the initiation of the grouting process, the OCHD will verify that the <br /> locations of all geothermal wells meet all applicable setbacks. The OCHD <br /> may conduct intermittent inspections of the grouting process thereafter, and <br /> shall ensure by visual inspection that each well is grouted to within one foot <br /> of land surface. The well contractor must submit a completed, signed copy of <br /> a Well Construction Record(GW-1)to the OCHD for all wells grouted at <br /> each inspection. If identical, all the wells grouted on a given occasion may be <br /> listed on the same form. The form shall be submitted to the OCHD within 3 <br /> working days of the grout inspection. <br /> 11. The well(s) shall be operated and maintained in accordance with <br /> the manufacturer's specifications throughout the operating life of the well(s). <br /> 12. When closed loop geothermal heat exchange injection wells are terminated <br /> below the ground surface, either: <br /> a. Each well shall have a permanent monument at grade level directly <br /> above each well. The monument shall state: <br /> 35 <br />