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PUBLI !HEALTH SE&CES <br /> SAN JOAQUIN COUNTY U&J,40,� <br /> ENVIRONMENTA <br /> L HEALTH DIVISIONKaren Furst, M.D., M.P.H., Health Officer304 East Weber Avenue, Third Floor • Stockton, CAI 95202 <br /> 209/468-3420 <br /> KAREN PETRYNA <br /> EQUINA SERVICES LLC ���� ���� <br /> PO BOX 7869 <br /> BURBANK CA 91510-7869 <br /> RE: Equilon (Shell branded Service Station #204-7524-4) Site Code:1883 <br /> 3011 W. Ben Holt Dr. RO#: 0000486 <br /> Stockton, CA., 95207 <br /> WORK PLAN: "Site Investigation Work Plan" DAl ED: October 11, 2001 <br /> 1 <br /> PREPARED BY Cambria Environmental Technology,l Inc. — Joe Neely, R.G. <br /> STATUS: APPROVED (with conditions, see *) <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN [H&S <br /> 25299.37. subd(c)(3)1: <br /> • Push five (5) deep (--120' bgs) soil boring/CPTs onsite ("SB-13" through <br /> "S113-17") to collect groundwater samples for MtBE vertical/lateral <br /> delineation around previous CPTs that detected MtBE at 77' bgs and, <br /> • Analyze samples for TPHg, BTEX, and seven (7) oxygenates and, <br /> • Report of findings to PHS-EHD. <br /> *COMMENTS AND CONDITIONS: <br /> • collect and analyze adequate number of soil samples for support of <br /> conclusions due in pending PAR and, <br /> • analyze all CPT groundwater samples for 1,2-dichloroethane, EDB, (8260b) <br /> and lead and, <br /> • the request to discontinue TPHd analysis from MW-6 through MW-9 <br /> approved until last two consecutive QMRs prior to Request for Closure. <br /> Quarterly sample all monitoring wells for MtBE, 1,2-dichloroethane and <br /> EDB (8260b) and Lead. If `non-detect' at LU FT detection limits for two <br /> consecutive QMRs, ok to discontinue sampling of that constituent until <br /> the last two consecutive QMRs prior to Request for Closure (NFA). <br /> REASONS FOR DISAPPROVAL OF THE WORK PLAN [HAS 25299.37 <br /> subd(c)(3)1: <br /> • none. ", <br /> DATED: October 17, 2001. By: /�( $6�! <br /> Michael Infu a, Senior,REHS (209) 468-3454 <br /> [ X ]Faxed to consultant on: 10/17/01. ! F!m- <br /> A Division of San Joaquin County Health Carc Services <br />