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San Joaquin County <br /> DIRECTOR <br /> Environmental Environmental Health De artlrr>lelnt <br /> Donna Heran,REHS <br /> z y 600 East Main Street <br /> { Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> Robert McClellon, REHS <br /> �•�: .teff Garruesco,REHS,RDI <br /> Website: w/ww.s . /ehd Kasey Foley,REHS <br /> ql j �jr,i� 1govor g Linda Turkatte, REHS <br /> Phone: (209)468-3420 <br /> Fax: (209)464-0138 <br /> October 15, 2010 <br /> +, Jonathan Marlowe <br /> I. Marlowe Property <br /> 838 Mission Avenue <br /> d San Rafael, CA 94901 <br /> I <br /> ' Subject: Marlowe Property <br /> 4696 Waterloo Road <br /> x^ <br /> (formerly 4648 Waterloo Road) <br /> Stockton, CA 95215 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Ground Water <br /> Monitoring Report, Third Quarter 2090 (Report) dated October 6, 2010, submitted on your <br /> behalf by Advanced GeoEnvironmental, Inc. (AGE) and has".the following comments. <br /> In the Report AGE documents a routine groundwater monitoring-,and sampling event that was <br /> conducted on August 10, 2010. Laboratory analytical results for analyses of 1,2-dichloroethane <br /> were reported as non-detect in all wells. AGE recommends preparation of a closure report; the <br /> EHD concurs. <br /> Please proceed with submittal of a Closure Summary Report that includes the following: <br /> 1. A calculation of contaminant mass remaining at the site. <br /> 2. An evaluation of the potential vapor intrusion threat from the remaining contamination. <br /> 3. Confirmation that a sensitive receptor survey has been completed for the site, and <br /> 4. All other requirements of the Tri-Regional Guidelines Appendix A. <br /> � r <br /> If you have any questions please contact Lori Duncan at (209) 468-0337, or by email at <br /> i <br /> Iduncan@sjcehd.com. <br /> f <br /> f Sincerely, <br /> C�L <br /> l.�t. � <br /> Lori Duncan, REHS Nuel C. Henderson, Jr., PG <br /> {{ Senior Registered Environmental Health Specialist Engineering Geologist <br /> 4 a <br /> i L <br /> c: Jim Barton, CVRWQCB, 11020 Sun Center Drive Ste. 204, Rancho Cordova CA 95670 <br /> Brian Millman, AGE, 837 Shaw Road, Stockton CA 95215 <br /> F <br />