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MAY-11-95 THU 16;07 CONDOR EARTH TECH AX NO 2096689248 P, 01 <br /> ,.1 W <br /> I'�oM-r Fax N cAe '-/671 _QQ �gfl'p <br /> T tie- I From <br /> 110- <br /> E Phgna k Phon <br /> 1710V <br /> Fax <br /> �} y Bx w <br /> CONDOR EARTH TECHNOLOGIES INC01 <br /> 1125 No_Golden State Blvd, 21663 Brian Larne <br /> suite H P,O, Box 3906 <br /> P.O. Box 3AA13 Sonora,CA 95370 <br /> May 11, 1995 Turlock,CA 95381 (20%58211481 <br /> (209)BeBQ234 FAX(209)532-0773 <br /> FAX(las)856.6246 <br /> Mr. Steve Sass(m <br /> o <br /> Sail Joaquin County Public Health Services . <br /> Euviromental Health Department MAY 12 1995 <br /> F.O. sox 388 <br /> Stocktoa., CA. 95201-0388 <br /> ENVIRONMENTAL HEALTH <br /> PERMIUSERVICES <br /> RE: Di Salvo TrucWmg Facility looted at 1.4"Lathrop Road lik Lathrop, California <br /> Dear Mr. 5asson, <br /> this later is to coOrrrn our telaplaane oonvematiou o a Wy 4, 1995, in which we discussed the next <br /> phase of investigation for site characturizatiO0 at the above nferenoed site. The finllowiftS history of the Dl <br /> Salvo- Lathrop site is provided for your convenience. <br /> S13MI - SITE HISTQRY <br /> On August 11, 1993, seven uadergrouind storage tanks (UST:s) were removed frond, the site. The site <br /> location is shown in Figure 1, maohed. The contents of the Wks were diesel, motor oil, and waste nil_ <br /> 1,aboratoiy analyses of the soil sample collected from benzaffi the east end of tLe former location of one <br /> 10,000-gallon diesel UST 4) at approximately 13,5 feet elow.the.ground surface fts) detected 80 mglkg <br /> diesel and 350 mgAq motor oil. During removal of the US s, grey pe'proleurn staining was noted to a depth <br /> of approximately 8 feet on the east excavation side+wrall of the excavation, adjacent to the f It ends of TK3, <br /> TK4, and TK5, The former UST locations are shown in the Figure 2, attaelied. No evidence of hydracarbcm <br /> contamination was detected at or above the reported labara detection limits in any of the remaining soil <br /> smnples collected from beneath the-former USTs located at a site. Based upon the results of laboratory <br /> analyses of the sail samples collected from the site, Condor jecormmended aver-exeavWon of soil at the east <br /> end of the fbriner location of TK4, <br /> ENVIRONMENTAL + GEOLOGICAL • ENGINEERING ■ GEOTECHNICAL <br />