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RONMENTAL HEALTH DEPARTMENT <br /> ENVI <br /> PpUIN SAN JOAQUIN COUNTY (Unit Supervisors <br /> so a--i pGCarl Borgman,R.E H.S. <br /> Donna K.Reran,R.E.xs. 304 East Weber Avenue, Third F'1001 Mike Huggins,R.E.H.S,R.D.I. <br /> DirectorDouglas W.Wilson,R.E.RS. <br /> At Olsen,R.E.H.S. Stockton, California 95202 2708 <br /> Margaret Lagono,R.E.H.S. <br /> ;P Program Manager Telephone: (209) 468-3420 Robert McClellon,R.E.H.S. <br /> q�iFoad Laurie A.Cotuila,R•E.H.S. Fax: (209) 464-0138 <br /> �. Mark Barcellos,R.E.H.S. ` <br /> Program Manager �EIII <br />,1 1 <br /> isOCT 112002 <br /> JAMES GIOTTONINI <br /> PUBLIC WORKS DIRECTOR' <br /> CITY OF STOCKTON <br /> 425 N EL DORADO <br /> STOCKTON CA 95202 <br /> i <br /> RE: City of Stockton sites is the Local Oversight Program <br /> A meeting was held on October 10,2002,at the office of San Joaquin County Environmental Health Department(EHD). <br /> Attending the meeting were Sharla Hardy and you representing City of Stockton(COS),William Little representing <br /> Advanced GeoEnvironmental,Inc.(AGE),Jeanne Romsey representing ATC Associates(ATC),and Margaret Lagono, <br /> en ng <br /> EHD. The following is a summary of the site discussions at the meeting <br /> Nuel C.Henderson,and Jeff Wong repres . <br /> Fontana Drive at Smith Canal <br /> E'HD received Second Quarter 2002 Site Status Report dated October 7,2002 and Third Quarter 2002 Site Stains <br /> Report dated October 9,2002 prepared by ATC at the meeting. A new cross section as included in the reports <br /> as requested by EHD. One more quarter of sampling is scheduled for January 2, 003 <br /> 110 W.Sonora <br /> Currently the vapor extraction system for the.northern area of contaminationstate <br /> at the site is off line. AGE d <br /> the concentration of the contamination in the upper water-bearing zone has declined,but the contamination in <br /> the lower water-bearing zone remained unchanged. AGE has submitted aproposal for ozone sparging system to <br /> augment the existing vapor ext l action/air sparging remediation system. <br /> u <br /> 340 yards of contaminated soil has been excavated and removed from the southern area of contamination at the <br /> site. AGF,stated analytical results of the soil samples collected from the southern sidewall of the excavation <br /> indicated the presence of motor oil. EHD has not received the report of the excavation area to date. AGE <br /> stated the report and proposal for additional work to characterize the extent of the remaining contamination <br /> would be submitted to EHD in the near future. <br /> 1740 Houston <br /> EHD received First and Second Quarters 2002Quanerly Report dated October 8,2002 prepared by AGE at the <br /> meeting. The report is missing two of the three contamination contour maps,so they will be submitted in the <br /> near future. The report did not include analytical results of the third quarter sampling event. AGE stated <br /> analytical results of the groundwater samples collected from Monitoring Well#9 WW-9)for the third quarter <br /> were 58µg/l of the methyl test butyl ether(M`f`BE). Previous groundwater samples from MW9 were non detect <br /> for MTBE. AGE stated since MW-9 was screened from 70 feet to 75 feet below surface grade(bsg),the MTBE <br /> plume extends to 70 feet below surface grade. Oneadditional round of quarterly sampling is scheduled to be <br /> conducted in December 2002.1: <br /> A meeting with the City of Stockton to discuss the status of their sites at that time is scheduled for 10:00 a.m.on Much 6, <br /> 2003,at the offices of EHD. " <br /> Donna Hemn,REHS,Director <br /> Environmental Health Department <br /> Marga io�rvising REHS <br /> Site Mitigation Unit <br /> c CVRWQCB-Marty Hartzell ' <br /> TGE-Bill Little <br /> ATC-Jeanne Homsey <br /> i ,. <br />