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Advanced <br /> GeoEnvironmental, Inc . <br /> 01 January 2008 <br /> AGE-NC Project No. 97-0249 <br /> Mr. Mike Infuma <br /> SAN JOAQUIN COUNTY ENVIRONMENTAL HEALTH DEPARTMENT <br /> 600 East Main Street <br /> Stockton, CA 95202 <br /> Subject: Request for Reduction in Quarterly Monitoring Frequency <br /> THREE B'S TRUCK PLAZA, 14749 Thornton Road, Lodi,California <br /> Dear Mr. Infurna: <br /> On behalf of Mr. Andy Zarakani of D.I.K. Tracy Enterprises, Advanced GeoEnvironmental, Inc. <br /> (AGE) is requesting approval by the San Joaquin County Environmental Health Department <br /> (SJCEHD) for a reduction in the sampling frequency at ground water monitoring wells MW-11 <br /> through MW-15 at 14749 Thornton Road, Lodi,California(site). The site setting is illustrated on <br /> Figure 1. Site structures and monitoring well locations are depicted on Figure 2. <br /> Ground water monitoring wells MW-11 through MW-15 have not detected significant contaminants <br /> of concern for at least nine(9)consecutive quarters;continued quarterly ground water sampling from <br /> wells MW-11 through MW-15 at this stage of the investigation is not cost effective and will not <br /> provide enough useful information to supplement the ongoing investigation.Annual sampling events, <br /> at wells MW-I I through MW-15 should be adequate to monitor ground water impact at these wells <br /> and should be re-evaluated on an annual basis. <br /> AGE is proposing that annual sampling of wells MW-11 through MW-15 will be performed during <br /> the first quarter of each year; however, depth to water measurements will continue to be collected <br /> on a quarterly basis. If you have any questions or require additional information, please do not <br /> hesitate to contact our office at(209)467-10067 WN JOAGM COUNTY <br /> 9IYVIOMMENTAL HEAITH DEPOMENT <br /> Sincerely, 000 E. MAIN ST. <br /> STOCKTON CA W= <br /> Advanced GeoEnvironmental,Inc. Approd �I8�0 <br /> 10 �OPrwW with dl - 0..:Sm Fammko <br /> Z'�,_ C"N"" Q Odd:0M 11Nwnllor <br /> Timothy f1Mr1MM� <br /> Project Geologist <br /> 837 Shaw Road,Stockta yw m Em p�pq�{� <br /> '(eIophone(2(m 467-100 #W a dhorin or Mpg OW plwMOfl Or <br /> �INIMon trom nq-kwvw is of tlw In or kat and mun. <br />