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222 East Weber Avenue <br /> Page 2 of 2 <br /> In addition, EHD approves the advancement of twin cane penetration testing (CPT) <br /> borings to depths of at least 40 feet bgs to be located at the 'south end of the former <br /> underground storage tank site. One grab groundwater sample will be collected from the <br /> permeable er <br /> second <br /> . P groundwater-bearing interval from the twin boring. <br /> f � . <br /> Soil and groundwater samples will be analyzed for total <br /> Y petroleum hydrocarbons as <br /> gasoline (TPH-gas); benzene, toluene, ethylbenzene, andl;'total xylenes (BTEX); methyl <br /> tertiary-butyl ether(MTBE), ethyl tertiary-butyl ether(ETBE), di-isopropyl ether (DIPE), <br /> tertiary-amyl methyl ether (TAME), tertiary butyl alcohol (TBA)', and 1,2-dichloroethane <br /> (1,2-DCA). s <br /> Please submit a boring permit application along with a permit and inspection fee of$374 <br /> to EHD. Notify EHD at least 72 hours prior to the scheduled fieldwork and complete the <br /> fieldwork by November 30, 2006. <br /> If you have any questions regarding this letter, please contact Vicki McCartney at (209) <br /> 468-3456 or by electronic mail at vmccartne Ws'cchd.com:1 <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> Victoria L. McCartney, Senior REHS Nuel,C. Henderson, Jr., PG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> c: Joseph Ramage, PG -Ramage Environmental, Inc. <br /> James L.L. Barton, PG- CVRWQCB <br />