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Page 2 of 2 <br /> Ground Zero Analysis, Inc. <br /> 1172 Kansas Avenue <br /> Modesto,CA 95351 <br /> (209)522-4119 office <br /> (209)522-4227 fax <br /> CONFIDENTIALITY NOTICE: <br /> This communication constitutes an electronic communication within the meaning of the Electronic <br /> Communications Privacy Act,18 USC 2510,and its disclosure is strictly limited to the recipient intended <br /> by the sender of this message.This communication may contain confidential and privileged material for <br /> the sole use of the intended recipient and receipt by anyone other than the intended recipient does not <br /> constitute a loss of the confidential or privileged nature of the communications.Any review or distribution <br /> by others is strictly prohibited.If you are not the intended recipient please contact the sender by return <br /> electronic mail and delete all copies of this communication. <br /> From: Vicki McCartney [EH] [mailto:vmccartney@sjcehd.com] <br /> Sent: Thursday, November 13, 2014 12:01 PM <br /> To: Eric Price <br /> Subject: 1600 Durham Ferry Road <br /> Good morning Eric, <br /> I have reviewed Work Plan-Soil Vapor Extraction and Air Sparging Pilot Test, dated 24 October 2014, for <br /> George's Service at 1600 Durham Ferry Road and I have a couple questions concerning the work plan. <br /> 1. Under Air Sparging Treatment, GZA proposes that the air sparging sequence be changed. There is no <br /> mention of incorporating newly-installed air sparge well AS-7 into the sequence, nor is AS-7 included in <br /> Figure 2 of the Work Plan. Since I do not have a report of the well installations(VEW-3 through VEW-6 <br /> and AS-7), I was wondering if AS-7 was installed, and if so, why AS-7 was not included in the proposal. <br /> 2. Under Groundwater Monitoring, GZA is proposing that depth-to-water measurements be collected from <br /> various wells each quarter. Were these wells selected based on the concern of mounding taking place? <br /> Your assistance is greatly appreciated. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton, California 95205 <br /> Phone: (209)468-9852 <br /> Email: vmccartnev@sicehd.com <br /> r f,r�.MNM1 <br /> 11/14/2014 <br />