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Test Boring Results—Rob inhood Impoon Well Replacement <br /> Cleanup and Abatement Order No 5-00-707 EA1 Project No 1232 <br /> . 2.0 USTs AND PRODUCTION WELLS <br /> 2.1 USTs— San Joaquin Delta College <br /> In order to determine the number and location of former and existing USTs on the SJDC <br />' campus, EAI contacted SJDC and requested that they provide that information SJDC (Ms <br /> Toni Cardinale — Risk Manager 209/954-5035) provide EAI the following information <br /> regarding 11 USTs formerly located on the SJDC campus (see Figure 2) <br /> UST ID No. Contents/Former Location <br />' 1 Split Tank near Bunker <br /> 2 Waste Oil Tank at Diesel Sho <br /> 3 Waste Oil Tank near Auto Mechanic Shop <br /> 4 Caustic Tank near Swimming Pool <br /> 5 Regular Gas Tank near Shima <br /> 6 Diesel Tank near Shima <br /> 7 Unleaded Gas Tank near Shima <br /> 8 Photochemical Tank near Shima <br /> 9 Photochemical Vault near Shima <br /> 10 Regular Gas Tank at Manteca Farm <br />' 11 Diesel Tank at Manteca Farm <br /> Ms Cardinale also informed EAI that there are no USTs currently located on the SJDC <br /> N campus, and that the fuel USTs formerly located near the Shima area and at Manteca Farm <br /> were replaced with aboveground Convault tanks <br />' EAI contacted the San Joaquin County Public Health Services, Environmental Health Division <br /> (PHS-EHD) (Mr Mike Infurna 2091468-3454) regarding any active UST cases at SJDC Mr <br /> Infurna indicated there were several permits issued for removal of USTs at SJDC, that those <br /> cases were all closed, and that there are no currently active UST cases for SJDC <br /> 2.2 USTs - Offsite <br /> In order to determine the location of former and existing UST sites with 2,500 feet of the test <br /> boring location (proposed new irrigation well location) EAI (1) retained Environmental Data <br />' Resources, Inc (EDR) to complete a search of available public record data base indices (a copy <br /> of the EDR report is in contained in Appendix A), and (2) went to the PHS-EHD office to <br /> review their records The results of this work identified three UST sites within 2,500 feet of the <br /> proposed new well location, and nine additional UST sites between approximately 3,000 and <br /> 3,500 feet of the proposed new well location (see Figure 3) <br /> Ground water beneath these UST sites, when converted to mean sea level data is present at <br /> approximately the same depths as the Wards and Unocal sites The deepest ground water well <br /> installed was 78 feet bgs, for well MW-1 at the ARCO Site (see Figure 3 — Site No 7) <br /> SAB 1232TESTBORING -2- <br /> ENVIRONMENTAL AUDIT,INC.® <br />