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PUBLIC HEALTH SEVICES oPa. ...co <br /> SAN JOAQUIIv COUNTY <br /> JOG[KHANNA MAD.,ti[.P.H. <br /> Health OfficerP.. <br /> • ) Stockton, C_aii bmia 95201 <br /> P.O. Box 2009 (1601 East Hazelton Avtrlue <br /> (209)468-3400 <br /> EDNA ROLLERI & DONNA BRUNO <br /> ESTATE OF ANGELO ROLLERI <br /> 436 W MARIPOSA AVE AUG 3 -01993 <br /> STOCKTON CA 95204 <br /> RE: Genova Bakery SITE CODE: 1252 <br /> 749 N. Sierra Nevada <br /> Stockton, CA <br /> A meeting was held at San Joaquin County Public Health Services, <br /> Environmental Health Division (PHS/EHD) offices on August 20, 1993 <br /> regarding further investigation of the above referenced site. In <br /> attendance were Ron Bruno, representing the estate of Angelo <br /> Rolleri, Vic Cherven and Bob Marty, representing Geological Audit <br /> Services, Inc. , and Margaret Lagorio representing PHS/EHD. <br /> The site vapor extraction system has not been in operation since <br /> the end of July 1993 . Geological Audit stated in the site <br /> quarterly report dated July 30, 1993, that the "rate of decline of <br /> vapor concentrations has decreased considerably over time and is <br /> now almost flat" and that continued operation "is unlikely to <br /> result in significant further reductions in hydrocarbon <br /> contamination" . <br /> PHS/EHD has been previously informed that vapor extraction systems <br /> should be turned off periodically to allow any soil vapors to move <br /> into the area of influence of the system. It was decided at the <br /> meeting that the vapor extraction system would be put back into <br /> operation about September 20, 1993 to see if vapor concentrations <br /> rise in the system after a period of shut down. <br /> PHS/EHD recommends that confirmation soil sampling occur at the <br /> same time as replacement of monitoring wells. All existing <br /> monitoring wells for this site are dry and the total depth of all <br /> existing wells is 55 feet below ground surface (bgs) . Groundwater <br /> level in this area is currently about 69 feet bgs. Even with <br /> normal or above normal rainfall it is not expected that groundwater <br /> levels would rise sufficiently to be able to obtain water samples <br /> from the current wells for several years. <br /> PHS/EHD understands that the estate has expended considerable funds <br /> to date on this site and that reimbursement from the State Water <br /> Resources Control Board Cleanup Fund Program is pending. <br /> A Division of-%a Joaquin County Hnhh(,rc scmices <br />