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San Joaquin Environmental Health Department 5044.000.008 <br /> River Islands— Monitoring Wells December 27, 2022 <br /> WORK PLAN FOR MONITORING WELL DEMOLITION Page 2 <br /> EXHIBIT 1: Site Plan <br /> Site Plan <br /> ► s-� a a <br /> YV <br /> I. <br /> - % '1< 1k- <br /> I. <br /> l- <br /> v <br /> f. <br /> a . <br /> 1 <br /> ' Paradise Road <br /> Stewart Road <br /> r <br /> 'Google Earth <br /> 000 ft <br /> SCOPE OF WORK <br /> Well Destruction <br /> Well destruction will be performed in general accordance with the San Joaquin County <br /> Environmental Health Department for destruction of groundwater wells. The well destruction will <br /> include completely overdrilling the well to remove existing well materials and tremie backfilling the <br /> hole with neat cement, under the observation of a San Joaquin County Environmental Health <br /> representative. <br /> We will coordinate with a licensed drilling contractor to overdrill the well to a depth of <br /> approximately 22 feet below the existing ground surface, or the bottom of the previous boring, <br /> whichever is deeper. Drilling will be accomplished using a truck-mounted solid-stem auger drill rig <br /> equipped with 6-inch-diameter augers in order to remove the annular seal around the well. Given <br /> that the subsurface material is not suspected to be contaminated, drilling cuttings will be placed <br /> on the ground surface near the well. <br /> Once the well has been adequately removed, the borehole will be grouted with neat cement using <br /> the tremie method to the ground surface. <br />