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WORKPLAN <br /> GROUNDWATER LEVEL MONITORING PROG <br /> ADDITIONOD P-7 AND P-8 <br /> THE SANCTUARY PROJECT ��° MC�DD <br /> STOCKTON, CALIFORNIA OCT 2 6 2005 <br /> SCOPE OF SERVICES PERMIT/SERVICES <br /> The scope of services will include the following: <br /> Task 1 Piezometer Installation Development, and Surveying <br /> 1.1 Permitting and Pre-field Activities <br /> The EHD requires completion of a well permit, and payment of fees prior to installation <br /> Of piezometers. Because the piezometers are being installed to evaluate the <br /> groundwater conditions, we anticipate that submittal of the workplan to EHD will be <br /> necessary in accordance with the EHD Unit IV. A copy of this workplan will be <br /> submitted with the EHD permit application along with the required fees. The permit <br /> must be approved prior to drilling activities and sampling. <br /> The drilling subcontractor will contact Underground Service Alert and the drilling <br /> locations marked in white paint at least 48 hours prior to conducting fieldwork, and will <br /> notify local utilities of our proposed subsurface assessment. <br /> 1.2 Piezometer Installation <br /> At this time, Kleinfelder proposes to install two additional piezometers (P-7 and P-8) to <br /> monitor existing groundwater levels on the west side of the site. Please see the <br /> attached Plate 1 Site Map for the piezometer locations. The installation of the <br /> Piezometers will be completed under the direct supervision of a California State <br /> licensed Engineer or Geologist. <br /> The soil borings will be drilled with a truck mounted drill rig equipped with at least an 6- <br /> inch hollow stem augers. We propose to advance the borings to a total depth of <br /> approximately 25-feet below ground surface (bgs) for the completion of each piezometer. <br /> )f a clay /aye, at /east 5-feet thick is encountered, the boring will be terminated at that <br /> depth below the first encountered water table level. During advancement of the soil <br /> borings, soil samples will be collected at 5-foot intervals for lithologic classification. <br /> Lithologic classification will be based on the Unified Soil Classification System (USCS). <br /> An environmental staff engineer or geologist will log the soil borings. All equipment used <br /> in the drilling and installation procedures will be cleaned and/or decontaminated with a <br /> steam cleaner or Liquinox cleaning solution. <br /> 71812.H01/STO6R658/JDZ:Iv Page 1 of <br /> 0 2006 Kleinfelder, Inc. June 22,2006 <br />