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Stockton Cold Storage <br /> Workplan for Soil Boring Permit Application <br /> 1320 West Weber Avenue Stockton, California <br /> ® Groundwater Sample Collection: Two groundwater samples will be collected utilizing a disposable <br /> bailer that will be lowered into the temporary casing. Groundwater will be transferred from the <br /> bailer to laboratory provided sample containers. <br /> ■ Soil Vapor Probe Sample Collection: Four soil vapor samples (including one duplicate) will be <br /> collected from the SVPs. Prior to sampling, a shut-in test will be completed on the sample train by <br /> assembling the summa, flow regulator, and purge line, and inducing a vacuum on the closed sample <br /> train. A leak check test will be performed during SVP purging to verify all connections are tight and <br /> no tracer gas is entering the sample train. Samples will be collected at a flow rate of 200 milliliters <br /> per minute (ml/min) in 1 Liter Summa cannisters or equivalent soil vapor sampling containers. <br /> Following soil, soil vapor, and groundwater sampling, all sampling equipment will be removed and <br /> the soil borings will be backfilled with hydrated bentonite chips or tremie grouted with bentonite <br /> grout (per the permit requirements). The surface will be capped to match the adjacent surface <br /> materials. <br /> Task 4 Laboratory Analytical Program <br /> The samples collected will be analyzed for various constituents by a California accredited laboratory on <br /> standard turn-around time (7 to 10 business days). <br /> Limitations <br /> This work plan was written solely for use to obtain the necessary permits and should not be viewed as a <br /> regulatory document. <br /> Rincon respectfully requests the permit review process be conducted under the expedited turnaround <br /> time (3-days) and rate of 1.5 times normal cost. <br /> If you have any questions or need any additional information in order to approve the boring permit <br /> applications, please call Daniel Correia at (916) 264-9764 or Sarah Larese at (805) 586-3209. <br /> Sincerely, <br /> Rincon Consultants, Inc. <br /> J <br /> C"' A . � (t- -dUw Xk, <br /> Sarah Larese Julie Doane-Allmon, PG #9252 <br /> Senior Environmental Scientist Senior Program Manager <br /> Pr,_Ovev�kl C'O_� <br /> Daniel Correia, GIT <br /> Geologist <br /> Attachments <br /> Figure 1 —Sampling Location Map <br /> Attachment 2 - Permit package <br /> Page 3 <br />