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2 <br /> Brian W. Millman, P.G. <br />Senior Geologist <br />CA Professional Geologist No. 8574 <br />OR Registered Geologist No. G2663 <br />CA QSP/QSD No. 26882 <br />AdvancedGeo, Inc. <br />Environmental • Compliance • Industrial Hygiene • Geotechnical <br />Phone: 800-511-9300 <br />Fax: 888-445-8786 <br />bmillman@advancedgeo.biz <br />www.advancedgeo.biz <br />“Working in Partnership with People, Business and the Environment” <br />This email/fax 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 email/fax is prohibited. If you are not the intended recipient, please contact the sender by email/fax and destroy all <br />paper and electronic copies of the original message. <br />From: Palmer, Ann@Waterboards <Ann.Palmer@waterboards.ca.gov> <br />Sent: Friday, March 13, 2020 2:39 PM <br />To: Brian W. Millman <bmillman@advancedgeo.biz>; Barbara Guiltinan <guiltinan@beowulfenergy.com> <br />Cc: Djuth, Gerald@Waterboards <Gerald.Djuth@waterboards.ca.gov>; Martin Wenzel <wenzel@beowulfenergy.com>; <br />Robert Marty <rmarty@advancedgeo.biz> <br />Subject: RE: 06 March 2020 Letter for 17200 Murphy Parkway, Lathrop, California (Work Plan Addendum) <br />Hi Brian, <br />I think the confusion between these two sections stems from running the analyses on some samples and not others as <br />indicated in the Sample Analytical Procedures section and not also indicted in the Soil Boring Advancement and Sampling <br />section. It is part of the sampling plan and should be indicated. That would probably clarify the bulleted list of samples <br />planned for collection on page 3 that indicates the boring advancement depths which are not the same as the sample <br />collection depths, or the sample results that we can expect to be reported. <br />If it’s just soil samples collected at 10 ft bsg being held, then what do think about adding a statement to the Soil <br />Advancement and Sampling section that indicates that samples collected at 10 feet bsg will be held for potential PCB <br />analysis? That would probably be enough to clear it up. <br />For the Sample Analytical Procedures section please indicate how long the samples will be held for before they are <br />expired and we can request them analyzed. <br />Hope this helps. EPA will be looking at this work for the PCB evaluation and needs to be clear in the document. Please <br />give me call if you want to discuss further. <br />Thank You, <br />Ann M. Palmer <br />Water Resource Control Engineer <br />Site Cleanup Section <br />(916) 464-4825 <br />Ann.Palmer@waterboards.ca.gov <br />Central Valley Water Board <br />11020 Sun Center Drive, Suite 200 <br />Rancho Cordova, CA. 95670 <br /> <br />From: Brian W. Millman <bmillman@advancedgeo.biz> <br />Sent: Friday, March 13, 2020 9:12 AM