Laserfiche WebLink
Former ARCO Station #6100 - 2 - 9 May 2018 <br /> 25775 South Patterson Pass Road <br /> Tracy, San Joaquin County <br /> In a 23 May 2017 letter, Central Valley Water Board staff concurred with the proposed scope of <br /> work. However, Central Valley Water Board staff subsequently reached an agreement with <br /> Arcadis that the proposed scope of work would be postponed until Site remediation was <br /> complete and the SVE/AS system was shut-down. <br /> Based on further review of the Revised Work Plan and historical Site data, Central Valley Water <br /> Board staff requests the following additions/changes to the proposed scope of work: <br /> • Naphthalene analysis of soil from between 0 to 5 and 5 to 10 feet bgs in borings B-49 <br /> through B-54. <br /> • In order to compare data to LTCP criteria, soil samples from borings B-55 and <br /> B-56 should be collected from 5 and 10 feet bgs (instead of 6 and 13 feet bgs, as <br /> proposed), respectively, with analysis to also include po!ycyclic aromatic hydrocarbons <br /> (PAHs). <br /> Central Valley Water Board staff request that, following shut-down of the remedial system, you <br /> begin implementing the proposed scope of work including naphthalene and PAH analysis <br /> requested above. By 7 September 2018, please submit an Assessment Report detailing the <br /> completion of the proposed scope of work and the resultant findings. Please include details of <br /> the remedial system shut-down. Please include an evaluation of Site data and conditions as <br /> compared to each of the General and Media-Specific criteria of the LTCP, providing discussion <br /> of how each criterion is met and recommendations to address any remaining data gaps. <br /> If you have any questions or concerns regarding comments in this letter please call me at <br /> (916) 464-4615 or contact me by email at alan.buehler waterboards.ca. ov. <br /> SS I ON', c <br /> Alan M. Buehler, P.G. A�ANM o <br /> Iv,Engineering Geologist T s,�o �FR <br /> � y <br /> O/'_oq L I FORN\P <br /> cc: Sriram Iyer, State Water Resources Control Board, UST Cleanup Fund, Sacramento <br /> Michael Kith, San Joaquin County Environmental Health Department, Stockton <br /> Megan Smoley, Arcadis US Inc., 101 Creekside Ridge Court #200, Roseville 95678 <br />