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Atlantic Richfield Company 3 <br /> ARCO Station#6020, 1711 E Yosemite Ave,Manteca, CA August 16,2000 <br /> • • Well Surveying. Upon completion of well construction, the wells will be <br /> surveyed by a licensed surveyor to a local benchmark relative to mean sea <br /> level Groundwater gradient will be interpreted utilizing wellhead <br /> elevations and depth-to-water measurements <br /> • Well Search. A 112-mile radius well search will be performed to evaluate <br /> potential sensitive receptors in the area of the site <br /> • Report. A report will be prepared after completion of necessary field <br /> work The report will include soil boring logs, well construction <br /> details, soil and groundwater analytical results, chain-of-custody <br /> documentation, and conclusions <br /> Field and laboratory procedures are presented as Attachment D <br /> SCHEDULE <br /> SECOR is prepared to initiate field work within 2 weeks following approval of this work <br /> plan and issuance of permits by the SJCEHD A report documenting the findings of this <br /> assessment is anticipated to be submitted approximately 6 to 8 weeks after the completion <br /> of the field work and receipt of laboratory results <br /> If there are any Questions regarding this work plan, please call us at(916) 861-0400 <br /> Y .02,R� <br /> Sincerely, <br /> SECOR International Incorporated <br /> �ERED GE <br /> Rusty E Benkosky, P E �c, p� <br /> Associate Engineer Q`LGREG O0 <br /> BARCLAY <br /> u, No. gp <br /> Greg Barclay, RG &0 �oF L1Fa� <br /> Senior Geologist <br /> Attachments Figure 1 - Site Location Map <br /> Figure 2 - Site Map with Proposed Well Locations <br /> Attachment A —SCEMD Letter, dated April 19, 1999 <br /> Attachment B - UST Removal Analytical Data <br /> Attachment C - Site Specific Health and Safety Plan <br /> Attachment D - Field and Laboratory Procedures <br /> cc Mr Paul Supple, Atlantic Richfield Company (ARCO) <br /> Mr Marty Hartzell, RWQCB <br /> 077 42070 310/WKPLAN <br />