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0 <br />SWD understands that drilling the well borehole does not require <br />inspection by EHD. SWD will schedule inspections with EHD, between <br />9:00 a.m. and 4:00 p.m during working days. SWD will pay overtime for <br />inspections that require overtime hours by EHD staff. <br />4.1 RESPONSIBILITY FOR SAFETY <br />Gregg Drilling is required to ensure work area meets all safety <br />requirements. Gregg Drilling will be responsible for the safety of its <br />workers during this project. Gregg Drilling will provide a job Forman for <br />the project that has completed the 40 -hour OSHA safety -training course. <br />Gregg Drilling will provide OSHA training certification of the job Forman <br />working at the site upon request. <br />4.2 SITE CONDITIONS <br />The installation of the new GW monitoring well does not include <br />excavation of refuse or contact with refuse. <br />Potential risk with Landfill Gas may be an issue but minimal as the new <br />GW wells are further away from refuse footprint. NCRSL's perimeter LFG <br />migration monitoring wells have shown methane readings of less than one <br />percent by volume. The lower explosive limit of methane is five percent by <br />volume. Potential hazards of methane gas are: fire, explosion and <br />asphyxiation. <br />4.3 SAFETY PROCEDURES <br />A. SWD's contractor will conduct a safety meeting with County staff and <br />Contractor's employees before the start of the project. During the first <br />safety meeting, SWD's Contractor will inform employees not to touch <br />refuse if encountered. Employees will be asked to wear gloves when <br />working. <br />B. Prior to drilling, Underground Service Alert (USA) will be notified. <br />Presence of overhead power lines will be checked and its clearances with <br />the drilling equipment. The well location will be adjusted if required drill rig <br />clearances are not met. <br />Work Plan- NC -Groundwater Monitoring Well Installation San Joaquin County <br />Department Of Public Works <br />3 Solid Waste Division <br />