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<br /> San Joaquin County DIRECTOR
<br /> PQ lJ N Donna Heran,REHS
<br /> Environmental Health Department ASSISTANT DIRECTOR
<br /> 600 East Main Street Laurie Cotulla,REHS
<br /> t :A
<br /> . Stockton, California 95202-3029 PROGRAM COORDINATORS �I
<br /> Carl Borgman, REHS
<br /> • Mike Huggins,REHS,RDI
<br /> eq��Fo'Rr'�P Website: www.sjgov.org/ehd Margaret Lagorio, REHS
<br /> Phone: (209) 468-3420 Robert McClellon,REHS
<br /> Fax: (209) 464-0138 .teff Carruesco,REHS, RDI
<br /> April 8, 2008 Kasey Foley,REHS
<br /> Mr. Fred Bertetta, Jr. and Ms. Janet Heikel
<br /> Olympian
<br /> 1300 Industrial Road, Suite 2 ,
<br /> San.Carlos, California.94070_ _-
<br /> Subject: JIMCO Truck Plaza
<br /> 1022 East Frontage Road (Formerly 22502 South Highway 99)
<br /> Ripon, California
<br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Site Assessment
<br /> Torp Plan dated March 7, 2008, prepared and submitted by Conestoga-Rovers &Associates, Inc.
<br /> (CRA) on your behalf for the above-referenced site. The work plan was submitted to investigate
<br /> the source of the diesel-range hydrocarbons.near the diesel pump station and monitoring well
<br /> MW-6, and assess the extent of petroleum hydrocarbon-impacted soil and groundwater toward
<br /> the northwest, west, south, and southeast of the diesel pump station and MW-6.
<br /> In the work plan, CRA proposes to advance approximately twelve direct push Geoprobe It soil
<br /> borings to approximately thirty feet below surface grade at locations illustrated on Figure 2 of the
<br /> work plan for the purpose of evaluating soil lithology and collecting soil and grab groundwater
<br /> samples for analysis. The EHD approves the work plan as submitted with the condition that you
<br /> include the analyses for tertiary butyl alcohol (TBA) and tertiary amyl methyl ether (TAME) in
<br /> addition to analyzing soil and grab groundwater samples for total petroleum hydrocarbons
<br /> quantified as gasoline (TPHg); TPH quantified as diesel (TPHd); TPH quantified as motor oil
<br /> (TPHmo); benzene, toluene, ethyl benzene, and total xylenes (BTEX); and methyl tertiary-butyl
<br /> ether (MTBE).
<br /> Please submit a boring pen-nit application and permit/inspection fee of $383 to the EHD and I
<br /> complete the fieldwork by June 6, 2008. Notify the EHD at least seventy-two hours prior to
<br /> commencing the fieldwork.
<br /> If you have any questions, please contact Vicki McCartney, Senior Registered Environmental
<br /> Health Specialist, at(209)468-9852 or by email at vnrceartney(cz sjcehd.eorn.
<br /> I
<br /> Sincerely,
<br /> I
<br /> Victoria L. McCartney, REHS Nuel C. Henderson, Jr., PG
<br /> Senior Registered Environmental Health Specialist Engineering Geologist
<br /> c: Mr. Ron Scheele, PG, Conestoga-Rovers & Associates, 5900 Hollis Street, Suite A,
<br /> Emeryville, California 94608
<br /> Mr. James L.L. PG California Regional Water
<br /> Barton, g Quality Control Board Central Valley
<br /> Region, 11020 Sun Center Drive, Suite 200, Rancho Cordova, CA 95670
<br />
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