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• • Page 5 of 5 <br /> hftr)s://qeotracker.waterboards.ca.gov/esi/uploads/­(geo reoort/1991891086/T0608797961.PDF <br /> -In July 2013,AGE performed a soil-vapor investigation at Borina Orchards in Watsonville, CA. <br /> During the investigation a disposable Polyethylene Vapor Implant(#SVPT91-14) and 0.25- <br /> diameter Teflon Tubing (#T250TEF)were used to collect soil-vapor samples from two borings <br /> into one-liter Summa canisters and four-liter sorbent tubes. The analytical lab report from the <br /> soil-vapor samples is attached; ethanol and IPA were detected in V-1 but all analytes tested <br /> for were ND in V-2; results from soil-vapor sample V-2 indicate that contaminants of concern <br /> were not detected from the vapor implant and Teflon tubing used during the sampling. <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 /> bmillmanCa�advgeoenv com <br /> www.advqeoenv.com <br /> This emailRax message is for the sole use of the intended recipient(s)and may contain confidential and privileged information.Any <br /> unauthorized review,use,disclosure or distribution of this emailRax is prohibited.If you are not the intended recipient,please contact the <br /> sender by email/fax and destroy all paper and electronic copies of the original message <br /> From:Vicki McCartney[EH] fmailto•vmccartneyi sicehd com] <br /> Sent:Wednesday, May 07, 2014 11:59 AM <br /> To: Brian Millman <br /> Cc: Nuel Henderson [EH] <br /> Subject:Collecting a material blank <br /> Brian: <br /> I would like to clarify what you, Nuel Henderson and I discussed today during a telephone conversation <br /> concerning the collection of a material blank sample for the soil gas sampling event at 601 Main Street in <br /> Stockton. You indicated that the equipment to be used that includes the soil gas probe,tip and tubing, is the <br /> same equipment that has been used at other sites where soil gas samples have been collected and the results <br /> have been reported'non-detect'for TPH-gasoline,benzene,toluene,ethylbenzene,total xylenes,MTBE, ETBE, <br /> TAME, DIPE,TBA, EDB, 1,2-DCA and IPA. Our agency will remove the requirement to collect a material blank if <br /> this is the case. Please provide documentation that demonstrates that the equipment to be used for collecting <br /> soil gas samples at 601 Main Street in Stockton does not contain any contaminants of concern. <br /> Thank you. <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: vmccartney0sicehd.com <br /> Ol <br /> 8/8/2014 <br />