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h <br /> Second Quarter Groundwater Monitoring Report June 2003 <br /> Boyett Petroleum,419 S.Main,Manteca,CA <br /> Page 6 <br /> site where they will remain pending laboratory analyses. Disposal of hazardous materials, if any, will be <br /> the responsibility of the property owners. Groundwater Well Development Field Forms are included in <br /> Appendix C. <br /> FUTURE WORK/RECOMMENDATIONS <br /> At the direction of the SJCEHD, Condor submitted an Additional Groundwater Investigation Work Plan, <br /> dated June 25, 2003, and an Interim Remediation Work Plan, dated June 25, 2003, to the SJCEHD and <br /> CRWQCB. The Additional Groundwater Investigation Work Plan was prepared to describe proposed <br /> groundwater investigation activities to evaluate the lateral and vertical extent of petroleum hydrocarbon <br /> contamination in groundwater up-gradient and down-gradient of the UST area using direct push boring <br /> methods. The Interim Remediation Work Plan addresses the installation of a pump and treat system for <br /> interim remediation, and the destruction of MW-4 and MW-5 and the installation of a replacement <br /> monitor well for MW-4. <br /> Condor recommends that quarterly groundwater monitoring at the site. On June 12, 2003, Condor completed <br /> a door-to-door investigation of properties in the immediate area of the site to attempt to identify the presence <br /> of pumping wells in the site vicinity In addition, a provisional increase in the groundwater monitoring <br /> frequency will be instituted in July 2003. Water levels in monitor wells MW-1 through MW-3 and MW-6 <br /> through MW-9 will be measured on a monthly basis and groundwater samples will be collected for MTBE <br /> laboratory analysis for a period of six consecutive months. <br /> LIMITATIONS <br /> This report was prepared under the direct supervision of a Registered Geologist in the State of California. <br /> The standard of care for all services performed or furnished by Condor is commensurate with the care and <br /> skill ordinarily used by a member of the environmental profession practicing under similar conditions at <br /> the same time in the same locality. Condor is not responsible for the accuracy and completeness of <br /> information collected and developed by others. <br /> This report was prepared for the sole use of Boyett Petroleum, and may not be used or relied upon by any <br /> other person(s) without the express written consent and authorization of Boyett Petroleum and Condor. If <br /> any changes are made or errors found in the information used for this report, the interpretations and <br /> conclusions contained herein shall not be considered valid unless the changes or errors are reviewed by <br /> Condor and either appropriately modified or re-approved in writing. Any questions regarding the content <br /> of this document should be addressed to David Wood at(209) 234-0518. <br /> Respectfully submitted, <br /> CONDOR EARTH TECHNOLOGIES, INC. <br /> ���\57 ERED GF <br /> 104 � <br /> Micheline Doyle Kipf NO. 65 avid ood <br /> Staff Geologist �'� alif Registered <br /> G o ' t#6532 <br /> } , <br /> C1� CONDOR <br />