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Angelica Sandoval Marin [EH] <br /> From: Brian Millman <bmillman@advgeoenv.com> <br /> Sent: Wednesday, April 23, 2014 3:57 PM <br /> To: Nuel Henderson [EH] <br /> Cc: Angelica Sandoval Marin [EH] <br /> Subject: Stallworth Auto - 602 North California Street, Stockton, CA <br /> Mr. Henderson, <br /> Thank you for discussing the Stallworth Auto Sales site with me today. As we discussed on the phone today, <br /> shallow soil data from the source area on-site is needed to evaluate specific criteria in the Low Threat Closure <br /> Policy (LTCP). In the AGE-prepared, Corrective Action Plan (CAP) dated 30 January 2014; AGE proposes to <br /> collect soil samples from selected borings at selected depths during the installation of injection wells. In order <br /> to evaluate the site using the LTCP, AGE proposes to collect soil samples from two pilot borings in the area of <br /> the former USTs at depth of 5 feet and 10 feet bsg. Soil samples will be analyzed for the constituents proposed <br /> in the CAP. <br /> Furthermore, we discussed the Additional Site Assessment Work Plan dated 07 March 2014. As we discussed, <br /> AGE will collect soil samples from eac"roposed soil borigq at depths between 50 feet and 70 feet bsg to <br /> �confirm that groundwater samples are collected in the coarse-grained lithologic unit and not the fine-g'raine3 urSoil samples will be collected using a 1.45-inch diameter Geo robe soil sampling assemblyloaded with a <br /> two-foot long acetate sleeve. Soil sample up Ica es will be extruded into plas is bags and field-screened for <br /> the presence of organic vapors using an organic vapor meter (OVM), equipped with a photo-ionization detector <br /> (PID) and the soil was visually classified in accordance with the Unified Soil Classification System (USCS). <br /> Please don't hesitate to contact me with any questions or comments. <br /> Thanks, <br /> Brian W. Millman <br /> California Professional Geologist#8574 <br /> Advanced GeoEnvironmental, Inc. <br /> Stockton • Los Angeles • San Francisco Bay Area • <br /> Monterey • Spokane • Seattle • Portland • Reno • Dallas <br /> Phone: 800-511-9300 <br /> Fax: 888-445-8786 <br /> bmillman(d_)advgeoenv.com <br /> www.advgeoenv.com <br /> This emaiVfax message is for the sole use of the intended recipient(s)and may contain confidential and privileged information.Any unauthorized review, <br /> use,disclosure or distribution of this emaiVfax is prohibited.If you are not the intended recipient,please contact the sender by emaiVfax and destroy all <br /> paper and electronic copies of the original message <br /> 1 <br />