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3/" diameter O.D. PVC pipes; at HLSL and CHSL, the PVC pipes are Y2" <br />diameter O.D. Also at FHSL and NCRCSL, there are also several older <br />style soil gas wells that have perforated tubes installed within the PVC pipe. <br />For these older style wells, the only work to be done involves installation of <br />a labcock valve inplace of the as built plastic cap. <br />SWD will schedule installation of the GW monitoring wells after approval of <br />work plan. SWD anticipitates to begin the tube installation project by <br />beginning of April 2012. The project may involve eight (8) working days <br />with a work schedule of Monday to Friday 9:00 am to 4.00 pm. <br />County staff will be conducting all work done during this project. The staff <br />involved is familiar with and follows county safety practices. <br />The installation of the new PE tubes within existing PVC pipes inside of the <br />SG monitoring wells does not include excavation of refuse or contact with <br />refuse. <br />A safety meeting will be held on the first day of the project to discuss all <br />safety issues. The following safety practices will be followed during the <br />project. <br />Hard hats, safety glasses and safety vests will be required for personnel <br />who are working near the construction area and operating heavy <br />equipment. <br />Work Plan- Groundwater Monitoring Well Installation San Joaquin County <br />March 28, 2012 Department Of Public Works <br />3 Solid Waste Division <br />