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Invitation For Bid: Hartmann and'.ietness • <br /> Site Addresses: <br /> Former Chase Chevrolet Facilities(separate Sites): <br /> 423 N. Madison 424 N. Van Buren <br /> Stockton, California Stockton,California <br /> Page 8 <br /> B. TANK NUMBER 2 <br /> Tank No. 2 was located ERER MWl <br /> W <br /> immediately east of the 4Y ® ® � <br /> Repair Building. This tank 2 ® ® [\ <br /> was reported to have <br /> contained waste oil from the <br /> repair shop. When removed, <br /> Falcon Energy reported the 8 q <br /> tank to be in "poor" <br /> condition with "holes" and DRIVEWAY <br /> considerable corrosion. The x <br /> short Resna tank removal COVERED PARKING <br /> report expanded on this by x x x x <br /> describing "numerous holes" Figure 3. Proposed CPT Soil and Groundwater Sampling <br /> associated with this tank. Locations, Tank Nos. 1,Z and 8 <br /> . The sampling plan will be the same for as that described for Tank No. I above with the <br /> exception that the three peripheral holes will be arranged to be north, south and east of <br /> the former tank cavity (see Figure 2 for proposed locations). As with Tank No. 1, a single <br /> groundwater "grab" sample must be obtained from this locality, preferably in the central <br /> former tank cavity area or to the north of said cavity. <br /> Samples will be analyzed according to the protocols established in the "Tri-Regional <br /> Board Staff Recommendations for Preliminary Evaluation and Investigation of <br /> Underground Tank Sites" (October, 1990 and August, 1991) for waste oil tanks. <br /> Specifically this includes CAM 5 metals (Cr, Ni, Pb, Ni and Zn) as TTLC, TPHg, TPHd, <br /> TPHmo, BTXE by USEPA Method 8020 (or its equivalent), Oil and Grease by Standard <br /> Method 5520, USEPA Methods 8240 (or 8260) and 8270 on every sample. <br /> C. TANK NUMBER 8 <br /> Tank No. 8 was located adjacent to the southern wall of the repair shop building on the <br /> Madison Street Property. It's approximate position has been shown on Figure 1. <br /> Tank No. 8 was reportedly used to contain TCA solvent. Some discrepancy also exists <br /> with respect to the actual size of this tank. Reported sizes range from 1,000 to 4,000 <br /> gallons capacity. Falcon Energy, the tank removal contractor, reported the condition of <br /> the tank as "poor" and with holes. The short Resna tank removal report lists a 1" hole on <br /> • the bottom seam of the tank. Tank invert sample results are not presently available. <br />