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to the commencement of fieldwork. The Site-Specific HASP will be reviewed and signed by all field staff and contractors before beginning field operations at the site. Planning and Permitting Atlas will obtain a well permit from SJCEHD prior to initiating the field work. Additionally,for off-site wells, access agreements will be secured. Grouting activities will be performed under the direction and/or supervision of an appointed representative of the SJCEHD. Underground Utility Locating and Clearance In advance of field activities, Atlas will mark the locations of the existing wells in accordance with the Underground Service Alert (USA) guidelines, and notify USA of upcoming subsurface activities. Atlas will also contract a private utility locator to confirm the locations of underground utilities in the vicinity of each well. Proposed Well Destruction Activities The current groundwater monitoring well network consists of twelve on-site wells(MW-3, MW-4R,MW-7, MW-12R, MW-13, MW-14, MW-IS, MW-17, MW-19, MW-20, MW-21, and MW-22), and seven off-site wells (MW-5, MW-6, MW-9, MW-16, MW-23, MW-24, and MW-25). There are 3 soil vapor wells on-site (SVE-1 through SVE-3) and seven air sparge well (AS-1 through AS-7). Well locations are shown on Figure 2 and Figure 2A. Monitoring wells at the site are generally completed in two zones. Shallow wells(MW-4R, MW-14 through MW-17, MW-19,and MW-25) are screened between 25 and 40 feet bgs. The cross-screened well (MW-7) is screened between 26 and 56 feet bgs. Deep wells(MW-3, MW-5, MW-6, MW-12R, MW-13,and MW-20 through MW-24) are screened between 40 and 80 feet bgs. Well construction details are shown in Table 1. Atlas will contract with a C-57 drilling company to properly destroy the wells. Each of the wells will be cleared to five feet below ground surface utilizing air knife procedures. Each well will then be overdrilled to the depth of the original boring with an eight-inch minimum diameter hollow stem auger to ensure all well materials are removed. The boreholes will be grouted to the surface from the total depth up as the augers are removed from the subsurface using neat Portland I/II cement. Waste Management The excavated soil and overdrilled material will be generated and stored on-site in a soil bin. Once the soil is profiled, the bin will be transported by a licensed waste hauler and disposed of at an approved facility. Report Preparation Upon completion of the well destruction activities, a summary report will be prepared that will include a description of well destruction field activities associated with the site, including records of waste disposal. Well Completion/Destruction Reports will be submitted to the Department of Water Resources by the drilling company. SCHEDULE Atlas will notify the SJCEHD prior to commencement of field activities to arrange for inspections.