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i ENT i <br /> i� � �� LTgj,EPARTM ! <br /> gEA 1 <br /> VI 10NMENTAL LINTY UnitSnpervisars <br /> CO R.E.H.S. <br /> { N SAN JOAQUIN CarIBorgman, <br /> venue,Third Floor Mike Huggins,R.E.H.S.,R.D.1. <br /> Donna K.Heran,R.E.H.S. 304,East Weber DouglasW Wilson,R.E.H.S. <br /> Stockton, California 95202 2708 Margaret Lagono,R.E.H.S. <br /> lsen, or 468-3420 <br /> At Olsen,R.E.H.S. Telephone: (209) Robert McClellon,R.E H.S. <br /> !! P� Program Manager Fax: (209) 464-0138 MarkBarcellos,R.E.H.S. <br /> Laurie A.CotuIIa,R.E,H.S. <br /> Program Manager <br /> MAR 14 2003 <br /> JAMES GIOTTONINI <br /> pUBLIC WORKS DIRECTOR <br /> CITY OF STOCKTON <br /> 425 N EL DORADO <br /> STOCKTON CA 95202 <br /> RE: City of Stockton sites in the Local Oversight Program <br /> A meeting was held on March 6,2003,at the office of San Joaquin County Environmental Health Department(EHD). <br /> Attending the meeting were Sharla Hardy,Wayne Smith,and you representing City of Stockton(COS),William Little <br /> representing Advanced GeoEnvironmental,Inc. (AGE),William Shipp representing ATC Associates(ATC),and Nuel C. <br /> Henderson,and Jeff Wong representing EHD.. The following is a summary of the site discussions at the meeting. <br /> Fontana Drive at Smith Canal li <br /> EHD received Fourth Quarter 2002 Site Status Report dated October 7,2002 and Third Quarter 2002 Site Status <br /> Report dated October 9,2002 prepared by ATC at the meeting. Five quarters of sampling have been conducted <br /> since the installation of monitoring well bfW7 in February 2002,which is the most northern down gradient well. <br /> Analytical results of the last four quarters of samples from MW7 have been non detect at below 50 micrograms <br /> per liter(µg/I). El ID will consult Regional Water Quality Control Board(RWQCB) for potential site closure <br /> status. <br /> 110 W.Sonora <br /> MWS was installed on March 3,2003 to investigate the contamination in the lower water-bearing zone AGE <br /> proposed performing base line testing and initiating operation of the ozone sparging system by April 1,2003. <br /> 1740 Houston <br /> EHD received FourthQuarter2002 dated February 7,2003 prepared by AGE. Methyl Cert butyl ether(MTBE) <br /> was detected for a second consecutive quarter in the deepest well AfW-9 screened from 70 feet to 75 feet at a <br /> concentration of 66 pg/1. MTBE was also detected in MW-10 at 8.6µg/l,which is the most northern well at the <br /> site. M17BE also continued toibe detected in AfW-4 at 91 µg/1 and in AfW-6 at 75µg/1. Analytical results of the <br /> groundwater samples from September 2002 previously reported in the Thud Quarter 2002 were missing in Table <br /> 2 of this latest quarterly report. <br /> EFID agreed with AGE's proposal to conduct another groundwater sampling event in March 2003. EHD also <br /> agreed to consult with RWQCB for direction of further investigation and status of the site. <br /> 1. <br /> The next quarterly meeting with the Cityof Stockton to discuss the status of their sites is scheduled for 10:00 a.m.on July <br /> 24,2003,at the offices of EHD. <br /> Donna Heran,RENS,Director <br /> Environmental Health Department ;! <br /> Margaret Lagorio,Supervising REFIS <br /> Site Mitigation Unit <br /> c CVRWQCB—James L.L.Barton,RG - <br /> AGE-Bill Little <br /> ATC—William Shipp <br />