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i 0 CAB R I A collected from these bonngs to assess both shallow and deep groundwater quality around the subject site A Cambria geologist will supervise the drilling activities Soils encountered in the well bonngs will be described using the Unified Soil Classification System and Munsell Soil Color Charts The CPT bonngs will be logged using CPT logging equipment Soil samples will be collected from the well borings for soil description at five-foot intervals until we near the depth of the proposed screen intervals At this point we will perform continuous soil sampling to verify the logs from the CPT borings Soil samples will be screened in the field for organic vapors using a photo-ionization detector (PID) Exploratory boring logs will be prepared for the well boring PID measurements will be recorded on the boring log The scope of work described in this work plan will be performed under the supervision of a registered geologist The wells will be completed using two-inch diameter Schedule 40 PVC casing The screened section will be composed of 0 020-inch slotted PVC The screen intervals will be approximately ten feet long and from approximately 75 to 85 feet below grade (fbg) The sand pack will consist of Lonestar# 2/12 sand (or equivalent) and will be placed along the entire length of the screen interval and one to two feet above the top of the well screen followed by a two-foot thick bentonite seal and cement grout to grade Actual well construction details will be based on field conditions at the time of drilling The wells will be secured with a locking cap under a traffic-rated well box A licensed surveyor will survey the wellhead relative to mean sea level The surveyor will also survey the well longitude and latitude per State of California guidelines Well Development and Sampling- The newly installed wells will be develop prior to sampling After well development,Blaine Tech Services, Inc (Blaine) will sample the wells and submit the samples to a state-certified laboratory for chemical analyses Chemical Analyses• Groundwater samples will be analyzed for TPHg, BTEX, seven fuel oxygenates, and lead scavengers by EPA Method 8260 Report Preparation: Within 45 days of the receipt of analytical results from the laboratory, Cambria will prepare a written report which will include field procedures, laboratory results, boring logs, conclusions, and recommendations 0797 3