Laserfiche WebLink
ATC Associates Inc. <br /> 1117 Lone Palm Avenue, Suite B <br /> Modesto, California 95351 <br /> 209-579-2221 <br /> fax: 209-579-2225 <br /> pSS OCIATES INC . <br /> Monitoring Well <br /> The monitoring well will be constructed of 2.0-inch ID and 2.375 OD schedule 40 PVC well <br /> materials . Drilling will be completed with a 6.750-inch to 7. 875-inch diameter mud rotary bit to <br /> approximately 110 feet bgs. Well construction will consist of ten feet of 0.020-inch slotted <br /> screen and 100 feet of PVC riser. Sand pack will be placed within the well annulus from the <br /> terminal depth to approximately three feet above the screen with approximately three feet of <br /> hydrated bentonite chips above the sand pack. The remaining annulus will be grouted in-place <br /> with a 4-5% bentonite/cement grout slurry to the surface. <br /> Drill Cuttings <br /> Provide a roll-off container or suitable container to store the soil cuttings, etc . Waste <br /> characterization and disposal will be completed by others . <br /> Please itemize your . costs and provide an estimated duration in days to complete the well. <br /> Specify the duration between setting inner/outer conductor casing and mud as well as completing <br /> the monitoring well. <br /> i <br /> i <br /> i <br /> i <br /> f <br /> t <br /> f <br /> i <br /> r <br /> i <br /> I <br /> it <br /> 2 ATC Associates Inc, <br /> S :\Environmental\62514.000I\Addendum to: Drilling Bid Request.doc <br />