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Underground Storage Tank Systeemoval and Assessment • Sears Unit#0555, Tracy, California 3.0 FIELD ACTIVITIES ' 3.7 Work Parameters Determination ' As part of the permitting process,the Tracy Fire Department(TFD)was contacted and permit number 1014522-405-R371 was issued for removal of the UST. In addition, a permit was obtained from the San ' Joaquin County Environmental Health Department(SJCEHD)to remove the UST. The TFD and SJCEHD were scheduled for an inspection time during the excavation of the UST. Mr.Dennis Catanyag ' of the SJCEHD and Mr.Pat.Vargas of the TFD performed an inspection during the UST removal. The TFD and SJCEHD Permits are included in Appendix A. MACTEC collected excavation confirmation soil samples as part of a soil assessment to determine the presence or absence of impacted soil. MACTEC referenced the California Tri-Regional Board Staff Recommendations for Preliminary Evaluation and Investigations of Underground Storage Tank Sites for ' sampling protocol and required analyses. Soil samples were collected at the direction of the SJCEHD from directly under the UST at each end and in the middle of the excavation; below a piping joint; and from two excavation soil stockpiles. The six soil samples were analyzed for the following compounds: • Total petroleum hydrocarbons(TPH)as gasoline(g),diesel(d), and motor oil(mo)using EPA Test ' Method 8015M; t • Total recoverable petroleum hydrocarbons(TRPH)using EPA Test Method(418.1); • CAM 17 Metals using EPA Test Method 6000/7000 Series; ' • Volatile organic compounds(VOCs)using EPA Test Method 8260; and ' • Semi-volatile organic compounds(SVOCs)using EPA Test Method 8270. ' 3.2 UST System Removal Activities Prior to beginning UST system removal activities,the Underground Service Alert(USA)North performed a utility locate in the general vicinity of the site. In addition,a MACTEC geophysicist screened the UST area for subsurface utilities using geophysical techniques. MACTEC also prepared a ' site-specific health and safety plan for use during UST system removal activities and conducted an on-site health and safety meeting with Three Kings personnel. 3 MACTEC Engineering and Consulting, Inc.