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29 December 2006 RB2 WED <br /> AGE-NC Project No. 00-0769 JAN 2 4 2007 <br /> Page 2 of 5 <br /> ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> 2. 1 , PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be obtained from the EHD and any necessary encroachment <br /> permits from the City of Stockton. As required by EHD permitting, a health and safety plan will be <br /> prepared in accordance with Occupational Safety and Health Guidance Manual for Hazardous <br /> Waste Site Activities (National Institute for Occupational Safety and Health Administration, U.S. <br /> Coast Guard and U. S . Environmental Protection Agency, 1985). Prior to mobilization, each soil <br /> probe location will be clearly marked and a utility clearance obtained through Underground Service <br /> Alert. <br /> 2.2, CPT ADVANCEMENT AND GROUND WATER SAMPLE COLLECTION <br /> AGE proposes to initially advance six CPT soil borings to characterize lithology, potential <br /> contaminant migration pathways and to assess the lateral and vertical extent of petroleum <br /> hydrocarbon-impacted ground water. Tbree additional borings are proposed on a contingency basis. <br /> Proposed CPT soil boring locations are illustrated in Figure 2. Based on petroleum hydrocarbon- <br /> impact encountered during previous investigations, AGE proposes CPT soil borings in the following <br /> locations: <br /> • Approximately 80 feet north of the UST #2 and UST #3 location; <br /> • Approximately 160 feet northwest of monitoring well MW-8 ; <br /> • Approximately 120 feet northwest of boring CPT-02 on the east side of Center Street; <br /> • Approximately 180 feet northeast ofmonitoring well MW-7 onprivate property (APN #147- <br /> 190-07); <br /> • Approximately 200 feet east of monitoring well MW-7 on the west side of El Dorado Street; <br /> and <br /> • Approximately 200 feet east to southeast of monitoring well MW-7 on the west side of El <br /> Dorado Street. <br /> The contingency borings are proposed if samples from the eastern-most borings are impacted. The <br /> contingency borings are proposed for the following locations: <br /> • At the northeast edge of the city block north of well MW-7; <br /> • Along the east side of South El Dorado Street; and <br /> Advanced GeoEnvironmental, Inc, <br />