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three well volumes, or until the temperature, conductivity <br /> and PH parameters had stabilized (Appendix B) . The wells <br /> were then allowed to recover to within 90% of their original <br /> water levels prior to sampling. <br />' Purge water from the sampling activities is currently being <br /> stored on-site, in metal drums, for later treatment and/or <br />' disposal. <br /> The samples were carefully poured from the disposable bailer, <br /> into clean glass VOA'S provided by the laboratory. Care was <br />' taken to ensure that no air space existed in the vials, by <br /> inverting to check for bubbles. <br /> The samples were immediately placed on iced storage for <br />' delivery to Sherwood Labs Corporation, 8071. N. Lander Avenue, <br /> Hilmar, California. The samples were under no circumstances <br /> opened by anyone other than qualified laboratory personnel. <br />' The samples were analyzed within the sample life-span limits <br /> as set forth by EPA guidelines for the specific tests to be <br /> run. <br />' The groundwater samples were analyzed by a California certified <br /> laboratory (Sherwood Labs Corp. ) using EPA method 602 for BTEX <br /> analysis, with a detection limit of 0. 3 ug/Kg, and EPA method <br /> I 5030/Mod. 8015 for TPH-Gasoline analysis, with a detection limit <br /> of 50 .0 ug/L. <br /> 5.0 REMARKS AND SIGNATURES <br /> This Quarterly Monitoring Report has been prepared using <br /> standard industry practices and was written in strict <br /> accordance with CVRWQCB guidelines. <br /> SUN TECH is not responsible for undisclosed site information or <br /> conditions, or the quality of work performed or manifested by <br /> other firms, that is included in or attached to this report. <br />' If you have any questions regarding the information provided, <br /> you may contact our Modesto office at (209) 576-7182 . <br /> �o�NY1RONMFNT,� <br /> Prepared by: <br /> s <br /> I w o <br /> BI1 <br /> a 0.03069 0 i <br />' Larry D. Gri f ith '��qr �tia Date: <br /> Project Supervisor/CEO FOF CAV <br /> SUN TECH ENVIRONMENTAL, INC. <br /> Registered Environmental Assessor # 03069 <br />' STE Project No. 4001 <br /> Page 8 <br /> I <br />