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California Headman water Quality Contr0l Board <br /> Page 4 <br /> level miter will be used to check for the presence of water in the Hydropunch crai�. <br /> w samples will be collect using a sta ss- elbbaile transferred to laboratory <br /> Groundwater <br /> tame Samples will he submitted to lfi nil -an compounds gMktetlboratory <br /> undereM1snafl-custody procedures analysis 0f volatile organic <br /> EnwrOmenel Pimection Agency Method 9260B. <br /> After advancing ttotal depth and reflecting all the groundwater samples, those mringathat will not be <br /> converted to wells will be destroined by placing neat cement gimrt from futal depth to <br /> surface while refundimonitoring the sonic drill caad g �T <br /> WELL INSTALLATION AND DEVELOPMENT METHODS 1'1_P"1/13�11�r{.ty rr's I-Ato <br /> & Aldrich preposesto installwela intwo of the completed uniform ply b5�� <br /> y a NPV<//M-59cL : d within the intermediate Aquifer at depths where cots all deteaed. To <br /> �\ L, fail a reaffirm determine where the we scummed, additional p volumew <br /> ill collected win c <br /> d each depth sampling interval at these lacaiins. The additional ample volume <br /> �YJlssa; 1dwgl he screened in thefleld for'fCE aM cisl,2Ocf using a portable gas mmmt0graph. <br /> After demannaliarl targeted screen Interval, each well will be constructed with uptol0feet0flinch <br /> diameter, Schedule N polyvinyl chloride (PVC) screen (with 0.01-Inch sleed niheltient PVC <br /> h0ser pipe. <br /> constructedpcortic placing the well in the sonic d casing, <br /> amispro eebetw <br /> the well and the bottom of the original boring will be a tructed well inside the sonic fall rasing to the targeted depth, the annular space <br /> aroanAfter d the well wnld ng the ebe ba knlled with «1/lx finer saad for equivalent) W approximately z feet above <br /> the of the screen infetva1.A 1-foil transition seal of bentonite chli swill then be pa th placed above e <br /> sup al of beatitude grout will he placed to just below around so Came. All <br /> itnular comenals wiier sand. Finally, a llheplaced while incrementally retracing the sonic drill casing from the Denied. <br /> The welk will then be completed with flushanountea ell boxes set In concrete. <br /> A mini m of rig ban is after installation, each well will be developed using s coma Hal purge methods. <br /> The screen interval 0f Fare well will first he surged with Be hlofor apprw atery l0 mimell e then <br /> braller may be u.semuo emu muullate seallm ttebottom of thew well. <br /> bep needAmiga roof 10 rasing um g meter "in a dawn Put in P. <br /> Aledonlhu WASTE has <br /> lr"snwle equipment din easing) will be denmaminated using a pressure washer <br /> steamor cleaner. Soilcambrings and deco tam on/dvelopm will bew razed <br /> separately in 55gallon drums pending profiling an disposal at an appropriate facilty. <br /> ( %CH <br />