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PUBLIC HEALTH SERVICES � .. <br /> SAN JOAQUIN COUNTY <br /> JOG[KHANNA M.D..M.F.H. <br /> Health Officer <br /> P.O. Boar 2009•(1601 Em if 0- Avt we)•Swdaoo.Calibarnia 95201 i i+ e► <br /> (209)46&3400 <br /> VAN DEN BERGH FOODS, INC <br /> FRANK YONESHIGE �, o � <br /> P o BOX 9200 JAN 1 <br /> STOCK TON CA 95208 <br /> C- <br /> RE. Riga Foods SITE CODE:22073 <br /> 1400 Waterloo Road <br /> Stockton, CA 95205 <br /> San Joaquin County Public Health Services, Environmental Health Division (PHSM.HD) has completed <br /> review of the 'Soil and Groundwater Investigation Report-dated November 10, 1942 and prepared by <br /> Remediation Services/BSK PHS/EHD has the following comments for your consideration. <br /> The investigation of contamination associated with former petroleum hydrocarbon underground storage <br /> tanks consisted of the drilling and sampling of two soil borings,one of which was converted into a <br /> monitoring well, MW4. Soil contamination was detected to the depth of 70 feet and groundwater <br /> contamination was detected in the sample collected from MW4. Monitoring Wells,MWi - MW3 <br /> wntinuW to be reported dry. <br /> PHS/EHD concurs with the recommendation that additional soil assessment be performed, in order to <br /> father delineate the extent of soil contamination. Four soil borings were proposed to be located <br /> surrounding the area of the former tanks. Please submit by February 1S, 199%an addendum to the work <br /> plan submitted by BSK which was dated September 16, 1992,describing the continued investigation,along <br /> with a permit application and associated fees. <br /> PHS/EHD does not concur with the recommendation to monitor MW4 for four quarters prior to the <br /> installation of additional monitoring wells. Since excmtion of soil contamination to 30 feet was <br /> proposed, pending the results of the additional soil investigation, two quarters of groundwater monitoring <br /> should provide adequate time for evaluation. Please schedule the next quarterly sampling event by <br /> Janes 22, 1993. <br /> If you have any questions or to schedule a sampling inspection, please contact Mary Ways.RENS,of my <br /> staff at (204)468-0337. <br /> Jogi Khanna, M.D.,M.P.H. <br /> Health Offi <br /> J. <br /> A. Cotulla, REHS, Program Manager <br /> amental Health Division <br /> LAC1MMab <br /> c: Elizabeth Thayer.CVRWQCB <br /> c: Anne Cahn,Remediation Services <br /> A W"W of 5dn)=gmn COIMMr Haft Circ Unkm <br />