Laserfiche WebLink
ENVIRONMENTAL HEALTH eEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> _` y Pro ram Coordinators <br /> Donna K. Reran, R.E.H.S. g <br /> 304 East Weber Avenue,Third Floor Carl Borgman, R.E.H.S. <br /> Director <br /> Laurie A. Cotulla, R.E.H.S. Stockton,California 95202-2708 Mike Huggins, R.E.H.S., R.D.I. <br /> • 4•: ;, .: �P Assistant Director Telephone: (209)468-3420 Margaret Lagorio, R.E.H.S. <br /> �'e o Robert McClellon, R.E.H.S. <br /> Fax: (209)464-0138 Jeff Carruesco, R.E.H.S, <br /> Website:www.sjgov.org/chd/ Kasey Foley, R.E.H.S. <br /> DARIN ROUSE MAR 21 2007 <br /> CHEVRON ENVIRONMENTAL MANAGEMENT COMPANY <br /> 6001 BOLLINGER CANYON RD RM K2260 <br /> SAN RAMON CA 94583 <br /> RE: Former Unocal #2859 <br /> 1665 Pacific Avenue <br /> Stockton, CA <br /> San Joaquin County Environmental Health Department (EHD) has reviewed the "Quarterly <br /> Groundwater Monitoring and Ozone Microsparge System Status Report, Fourth Quarter 2006" <br /> dated December 27, 2006, prepared by ENSR for the above referenced site and provides the <br /> following comments. <br /> The recommendations in the report are the same as the recommendations provided in several <br /> previous quarterly reports. Specifically, that the ozone sparge system previously operated at <br /> the site is to be evaluated and that following the assessment, the existing system may be <br /> modified or another method of remediation may be proposed. EHD directs that this evaluation <br /> be completed and a report submitted that provides the modifications for the ozone sparge <br /> system or an alternative method of remediation by May 21, 2007. <br /> In a letter(enclosed) dated July 3, 2006, EHD provided comments on the "Conceptual Site <br /> Model" dated April 25, 2006, prepared by ENSR. There has been no response to those <br /> comments from EHD. Further site assessment may be necessary. Please review and respond <br /> to EHD's comments by May 21, 2007. <br /> If you have any questions contact me at (209) 468-3449. <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> --M� jl:l� <br /> Margaret Lagorio, REHS <br /> Program Coordinator Unit IV <br /> c: Jim Barton -- CVRWQCB <br /> David Irey— SJCADA <br /> Ms. Helen McCrary <br /> George Forsythe - ENSR <br />