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..a �:�,.`. � � ;..�' �'-. �'"_ Mt r« ;. r; t'� "" "' •nom+ - m,.,Y-`na nyti' r;�' '`'' „-.,,»,. '"�.,. <br /> i <br /> QUALITY AaSURANCE/QUALTTY CONTROL <br /> PROTOCOL <br /> The following licensed professional people will be involved in <br /> this project. <br /> Geologist: Richard Merriam, Certified Engineering Geologist <br /> California Registration 0 850. <br /> Environmental Aii;sessor: John Cussen, REA 1979 <br /> Drillers: Will have a current C-57 Drilling license. <br /> Laboratory: Will be a California State Certified Laboratory. <br /> otno Is <br /> Drilling Monitoring Wells: <br /> All downhole equipment will be decontaminated using steam,to <br /> clean off all soil prior to use. Wells will be drilled with a <br /> continuous flight hollow stem auger. All wells will have a <br /> diameter at least 4 inches greater than the casing diameter <br /> AM (OD). <br /> Prior to removing any equipment from. the hole the TD will be <br /> measured. Once the casing is placed in the hole an accurate <br /> measurement of the total amount of casing must be made. The <br /> difference between the two figures will be explained by the well <br /> logger, <br /> All drill cuttings will be placed in drums, sealed and the <br /> drilling intervals for the cuttings in each drum will be written <br /> on the drum. <br /> Completion: <br /> Slottcu casino (n_ 92 inch .slots) will be capped with a bottom <br /> plug. The slots will extend. 5 Feet above the estimated water <br /> table indicated during drilling. Clean 0 3 wand will be placed <br /> opposite the slotted casing and 2 feet above the last slot. At <br /> this time the well will be sure?ed for 10 to 15 minutes to <br /> attempt- to eliminate any voids in the sand pack. At the end of <br /> the surging the top of the sand will be measured and additional <br /> sand will be added if necessary, Directly above the sand a 3 <br /> foot plug of bentonite will be placed. Above the plug a seal of <br /> cement grout will be placed to the surf acc- The top of the <br /> casing will be rapped and s traffic bo:{ and will be cemeerted in <br /> place around, and above the top of tl�e ca:.ing. <br /> The well will be developed by bailing within a day of drilling <br /> to remove most of the sediment within the: casing and to remove <br />