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� 3 <br /> 3 <br /> preserved for analysis. Depending upon field conditions, a water sample may be taken using a <br /> hydropunch or similar tool. <br /> R F <br /> s <br /> 5. If contamination continues below 80'bgs, the well(s) will be completed with two (2) strings <br /> of blank& slotted 2" PVC. One suing will extend approximately 20 feet below the deeper <br /> water, or 80 feet bgs. The other string will be placed across the first water, estimated to be at <br /> about 60 feet bgs. PLATE IIIA is�a schematic of one method of accomplishing that task. <br /> However, the actual technique will.depend upon conditions encountered during the work. <br /> PLATE M is a schematic of a single zone completion. <br /> 4I� <br /> i <br /> 6. Drill solids will be placed on plastic and properly covered.,, The soil will be sampled and <br /> analyzed as required for transport to an approved disposal facility. <br /> h � <br /> 7. Depending upo6 the results of soil and water analyses, the:soil borings will either be <br /> completed as monitoring wells as described above, or thoroughly grouted from total depth to <br /> p <br /> the surface. <br /> :e <br /> 8. If one or both soil borings are converted to monitoring wells, they will be developed and <br /> sampled within 36 to 48 hours after completion. Water samples will be analyzed for BTEX, <br /> TPHg, and TPHd using San Joaquin Co. EHD approved tests and detection limits. Depth to <br /> k water in all wells will be determined during this work, and water samples will also be collected <br /> from MW-1 & MW--4 & analyzed for the same constituents as the new wells. <br /> ij <br /> 9. If appropriate, the elevation and-surface coordinates of each well will be determined by a <br /> licensed surveyor. <br /> j <br /> 10. All field operations will be supervised by a qualified geologist under the direction of a <br /> representative`of the San Joaquin Co. EHD. <br /> Upon completion of the work, and receipt and analysis of the Jaboratory results, a report will be <br /> submitted to the Sana Joaquin County EHD for review and response. <br /> WOed <br /> ter&Associates <br /> E <br /> i D , 1.998 <br /> Ruary 8, 1999 <br /> cc: CVRWQCB - Mark List <br /> John Marci ' <br /> Garrison Law Corp. <br /> a= <br /> 4 <br /> f <br />