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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran,REHS <br /> 1868 <br /> East Hazelton Avenue <br /> a: a <br /> PROGRAM COORDINATORS <br /> < Stockton, California 95205-6232 <br /> 5 Robert McClellon,REHS <br /> • Jeff Carruesco,REHS,RDI <br /> c. P <br /> q��Fo•Ra� Website: wwW.SjgOv.org/ehd Kasey Foley,REHS� <br /> Phone: (209)468-3420 LindaTurkatte,REHS <br /> Fax: (209)464-0138 <br /> i <br /> David A Rosso <br /> Stockton Center Site Authority <br /> 401 Golden Shore, Second Floor <br /> Long Beach CA 90802-4210 <br /> Subject: CSU Stanislaus <br /> 1252 N.Stanislaus Street <br /> Stockton, CA 95202 <br /> WORK PLAN: REVISED SOIL GAS INVESTIGATION <br /> I <br /> DATED: January 17, 2012 <br /> PREPARED BY: Condor Earth Technologies Inc. <br /> APPROVED: [X] <br /> i <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN [H&S 25296.10 (c)(3)]: <br /> 1. To collect soil gas samples to perform an indoor vapor intrusion evaluation. <br /> A <br /> 2. To collect samples from 3 separate on-site locations: 1) one sample in the former UST source <br /> area, 2) one sample in an area half the distance between the former UST and an existing on-site <br /> building, and 3) one sample directly east of the former UST within 10 feet of the existing on-site <br /> occupied building. <br /> 3. All sample depths should not exceed 5 feet below ground surface. Deeper samples, as proposed <br /> in the Condor work plan, will not be required and only 5 foot samples are approved at this time. <br /> 4. Soil vapor samples will be collected in summa canisters and analyzed by Method TO-15 and <br /> Method TO-17. <br /> 5. Soil vapor sample results will be compared to Environmental Screening Levels (ESL) and <br /> California Human Health Screening Levels (CHHSL's). <br /> 6. A report of findings will be submitted by Condor including conclusions and recommendations. F <br /> COMMENTS AND CONDITIONS: <br /> 1. Please prepare and submit an EHD Boring Permit Application along with a$500.00 fee by Nov. 1, <br /> . 2012. <br /> 2. The report of finding must be submitted within 60 days of the completed scope work. <br /> DATED BY <br /> Harlin Knoll, Senior REHS (209) 468-3442 f <br /> Cc: Condor, 188 Frank West Circle, Suite I, Stockton, CA 95206 <br /> l <br /> I <br /> I <br />