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Canepa s Car Wash <br /> 6230 Pacific Avenue,Stockton,CA <br /> Fourth Quarter Groundwater Monitoring Report,October 2004 <br /> Page 5 of 6 <br /> . initiated on October 7, 2004 At that time additional permitting activities for start up of the groundwater <br /> PUMP and treat portion of the system were on-going Groundwater extraction and treatment, with <br /> subsequent discharge to the sanitary sewer, is anticipated to begin in late October or early November <br /> 2004 <br /> FUTURE WORK <br /> The next quarterly groundwater monitoring event is scheduled for January 2005 and will include <br /> sampling of monitoring wells MW-2, MW-3, MW-4, MW-9, MW-12D and SVE well SV-4 Monitoring <br /> wells MW-5, MW-6, MW-7, and MW-10 are sampled annually in the third quarter (scheduled for July <br /> 2005) Monitoring wells MW-1 and MW-11 are dedicated groundwater extraction wells and will be <br /> sampled separately to meet the sanitary sewer district discharge permit requirements <br /> Once the site SVE and groundwater pump and treat system are in operation, the soil vapor portion of the <br /> system will be monitored weekly and the groundwater portion monitored monthly Weekly soil vapor <br /> sampling will be conducted with a photo-ionization detector (PID), initially calibrated with laboratory <br /> analytical results of soil vapor sampling conducted with a SUMMA canister Water samples will be <br /> collected from the first and second carbon tanks on a monthly basis The sample collected from the outlet <br /> of the second carbon tank will be held by the lab and not analyzed unless detectable concentrations are <br /> confirmed from the sample collected from the outlet of the first carbon tank Samples will be analyzed for <br /> BTEX, MTBE, and TBA by the laboratory using EPA Method 8260B Weekly and monthly self- <br /> monitoring of the treatment system will continue through cessation of the remediation The First Quarter <br /> 2005 Groundwater Monitoring and Treatment System Update Report to be prepared following the <br /> January 2005 groundwater monitoring event will include a description of the treatment system <br /> installation, start up, operations, and monitoring to date <br /> • LIMITATIONS AND SIGNATURE <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 Remo Canepa, and may not be used or relied upon by any <br /> other person(s) without the express wntten consent and authorization of Remo Canepa and Condor If any <br /> 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 Don Kresse at(209) 234-0518 <br /> Respectfully submitted, <br /> CONDOR EARTH TECHNOLOGIES, INC <br /> GFQ <br /> Micheline Doyle Ktpf No.08@4 �y onald F Kresse, R G , C Hg , REA <br /> Staff Geologist p o enior Environmental Hydrogeologist <br /> 1 <br /> �1' CONDOR <br />