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i <br /> ENVIRONMENTAL HEALTH DEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> (inrf Supervisors <br /> Q ;, Donna K Heran,R E H 5 <br /> Director t304 East Weber Avenue, Third Floor Carl Borgman,R E 1t S <br /> • Al Olsen,R E N S Stockton, California 95202-2708 Mike Huggins R E H 5 R D I <br /> Douglas W Wilson,RE H S <br /> C4LI jr: Ft Laurie 4 Cotu]lR E Program tla,R E H S Telephone (209) 468-3420 Margaret Lagono,R E H S <br /> ° <br /> Program Vonager Fax (209) 464-0138 Robert McClellon R E H S <br /> Mark Barcellos,R E H S <br /> MICHAEL KARVELOT <br /> QUIK STOP MARKETS INC <br /> 4567 ENTERPRISE STREET <br /> FREMONT CA 94538 <br /> ' RE Quik Stop Station No 076 <br /> 1030 Sou,h 01i-,e,i.enue <br /> Stockton, CA 93213 <br /> A ORI{PLAN \\orf, Plan for:additional Groundyt ater In%estigation DATED_April 22. 2003 _ <br /> PREPARED B� Horizon Em Lronmental Inc <br /> APPROVED X <br /> DISAPPROVED ❑ <br /> ADDENDUM ❑ Submrtby <br /> ADEQUATE AN D \ECESSARY ELEMENTS OF THE%%ORKPLAN [Health&Safer Code <br /> (H&S) Section 25299 3-(c)(3)] <br /> 1 Install one ground%-,ater morutoring well (NAV-1) approxirnateh 10 feet southeaRt of soil <br /> boring SB-2 to eN aluate the down-gradient lateral extent of petroleum h)drocarbons reported <br /> in groundu ater samples at this site <br /> 2 Collect soil samples at fi%a-foot anter als to total depth of 73 feet below surface grade (bsg) <br /> Send soil samples %z-ith detected petroleum hydrocarbons using the PID or visual inspection <br /> to a Cahforrua certiFied em ixoninental laboratory for analN sis <br /> 3 Anahze soil hnd groundwater samples for total petroleum h)drocarbons as gasoline (I-PH-G), , <br /> oenzene, toluene, eth)1 oenzene, and total xylenes (il EX),ana methyl tertian}-buz)i ether <br /> (N=E), bi united States Environmental Protection Agency (EPA) S\V-846 method 8260B <br /> In addition to the compounds fisted abo%e, analyze the composite soil stockpile sample for <br /> total lead by EPA SW-846 method 6010B, and analyze the groundwater sample for ch- <br /> isopropil ether (RIPE),ethyl tertiary-but)1 ether (ETBE), teruary-amyl methyl ether (TAI%fE), <br /> teruan butanol (IBA), 1,2-dichloroethane (1,2-DCA), and 1,2-dibromoethane (EDB) b) EP.-k <br /> S%%'-846 method 8260B <br /> 4 Conduct a sensiui a receptor survey for the area within 2000 feet of this site <br /> 3 Prepare a Site Health and Safety Plan <br /> 6 Noafy Underground Sen ice Alert to adeno y and locate underground un hues at the site <br />