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Proposal Workplan Page 2 <br /> TEIXEIRA SOUSA—GROUNDWATER ASSESSMENT <br /> December 18,2006 <br /> WKA No.: 3PRO6195 <br /> On November 22, 2006, the Central Valley Regional Water Quality Control Board (RWQCB) <br /> published tentative Waste Discharge Requirements (WDR) and Monitoring and Reporting <br /> Program (MRP) requirement for milk cow dairies. The scope of work provided in this workplan <br /> was prepared in general accordance with the tentative MRP. <br /> PROPOSED SCOPE OF WORK <br /> The scope of work for the groundwater quality assessment will include the following tasks: <br /> • Task 1: Permitting and Field Work Preparation <br /> • Task 2: Soil and Grab Groundwater Sampling <br /> • Task 3: Laboratory Analysis <br /> The following subsections present details of the proposed scope of work based on WKA's <br /> understanding of site conditions as determined during our previous assessment and dairy <br /> abandonment activities. <br /> Task 1: Permitting and Field Work Preparation <br /> Prior to conducting field activities, a Health and Safety Plan (HASP) will be prepared for the <br /> proposed field sampling activities. The HASP is intended to document and provide field personnel <br /> with appropriate safe working measures for known and potential hazards that may be encountered <br /> during field sampling activities. The proposed sampling locations will then be marked and mapped <br /> for future reference. The proposed sampling locations will also be permitted through the San <br /> Joaquin County Environmental Health Department(SJCEHD) and implemented under an <br /> SJCEHD-approved workplan. Underground Service Alert service will also be notified at least 48 <br /> hours in advance of sampling activities. <br /> Task 2: Soil and Grab Groundwater Sampling <br /> Assuming unrestricted access to the Site, WKA will advance and sample up to 20 direct-push <br /> boring locations across the Site using a GeoProbe drilling rig, sub-contracted through <br /> V&W Drilling. Soil samples will be collected at the surface and at varying intervals for soil <br /> description, field screening using a hydrogen sulfide meter, and for potential laboratory analysis. <br /> `N% <br /> WALLACE•KUFII <br /> Er ASSOCIATES INC. <br />