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y�`j V - <br /> { <br /> PUBLIC EALTH SE ." , t'ES U� <br /> O. N <br /> SAN JOAQUIN COUNTY °P c <br /> •G <br /> ENVIRONMENTAL HEALTH DIVISION _ y< <br /> Ernest M. Fujimoto, M. D., M.P.H.;Acting Health Officer <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 952021 <br /> 2091468-3420 t J <br /> FRANK YONESHIGE �, y 1997 <br /> VAN DEN BERGH FOODS <br /> PO BOX 9200 <br /> i r STOCKTON CA 95206 <br /> m <br /> �i <br /> Re: 1400 Waterloo Road iy Site Code: 22073 <br /> Stockton CA 95205 <br /> I rC <br /> iE I <br /> San Joaquin County Public Health Services,Environmental Health Division'(PHS/EHD)has completed <br /> review of International Technology's"Groundwater Monitoring Report-Third Quarter 1996"dated <br /> September 1996 and"Soil and Groundwater Modeling Report"dated November 1996. PHS/EHD has <br /> prepared the following comments for your consideration and response. <br /> PHS/EHD had a number of questions related to the Soil and Groundwater Monitoring Report which were <br /> discussed with your consultant, Linus Farias, on January 17, 1997. f{Linus Farias indicated that he would <br /> submit supplemental material regarding the model parameters used and the calculations performed to <br /> determine residual mass and average area-weighted concentrations. ;� <br /> i. l <br /> The results of the most recent groundwater results collected on August 22, 1996 indicated that the <br /> groundwater elevation had decreased approximately eight feet since May 22, 1996. PHS/EHD requested <br /> that due to recent rains which San Joaquin County has received and the contaminants' leachability that an <br /> additional round of quarterly sampling be performed. <br /> PHS/EHD requests that a closure summary report be prepared in acc4iordanc with Appendix B Requests for <br /> Closure dated March 1, 1994 and prepared by the Central Valley Regional Water Quality Control Board <br /> Staff. <br /> If you have any questions please contact me at(209)468-0337. <br /> I e <br /> l Donna Heran,REHS,Director <br /> Environmental Health Division <br /> MMarY Mea s, SenioHS ar area <br /> rio REHS <br /> Site Mitigation Unit Super.v,isor <br /> MM/MS/Frank Yoneshige <br /> I, <br /> cc: Elizabeth Thayer,CVRWQCB <br /> cc: Linus Farias,IT Corporation <br /> 6 <br /> F . <br /> kyr <br /> A Division of San Joaquin County Health Care Services <br /> i �i <br />