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BP #172 (Thrifty) - 2 - 30 June 2017 <br /> 7647 Pacific Avenue <br /> Stockton, San Joaquin County <br /> Table 1 — Existing/Proposed Well Construction Details and December 2016 Groundwater Data <br /> Remedial Area Well Screen Interval December 2016 <br /> TPHg Benzene <br /> ftbs u /L u /L <br /> MW-13 55-60 6,900 4,000 <br /> MW-14 30-45 44,000 19,000 <br /> Area 1 SVE-1 25-40 -- -- <br /> AS-1 45-50 -- -- <br /> AS-2 55-60 -- -- <br /> AS-5 75-80 -- -- <br /> MW-22 55-60 1,700 4,300 <br /> Area 2 SVE-2 25-40 -- -- <br /> AS-3 55-60 -- -- <br /> AS-6 75-80 -- -- <br /> MW-3 45-75 10,000 3,800 <br /> MW-15 30-45 470 85 <br /> Area 3 SVE-3 25-40 -- -- <br /> AS-4 55-60 -- -- <br /> AS-7 75-80 -- -- <br /> E=existing;P=proposed;ft bgs=feet below ground surface; ug/L=micrograms per liter <br /> Central Valley Water Board staff concurs with the remedial activities proposed in the RAP. In a <br /> letter dated 23 May 2017, Central Valley Water Board staff requested the submittal of a Site <br /> Assessment Report by 25 August 2017. Central Valley Water Board staff requests that you <br /> postpone submitting the Site Assessment Report and that you submit a single Site Assessment <br /> and Remedial Well Installation Report by 29 September 2017. The combined report should <br /> summarize the completion of both the scope of work concurred with in the 23 May 2017 letter, <br /> and the installation of the proposed remedial wells. In the requested report, please provide any <br /> information requested in the 23 May 2017 letter, as well as a schedule for completion of the <br /> installation of the SVE/AS systems and the associated conveyance piping. <br /> In summary, Central Valley Water Board Staff request the following: <br /> • By 29 September 2017, please submit a Site Assessment and Remedial Well <br /> Installation Report to include: <br /> o Details of completion of the scope of work as discussed in the 23 May 2017 <br /> letter. <br /> o Details of the installation of six (6) AS wells. <br /> o A completion schedule for installation of the remedial systems and associated <br /> conveyance piping. <br /> If you have any questions or concerns regarding comments in this letter please contact the <br /> undersigned at (916) 464-4615 or by email at alan.buehier@waterboards.ca.gov. <br /> �sSION'44 <br /> ° c� <br /> Alan M. Buehler, P.G. Q� O <br /> Engineering Geologist q�qN M. BUF "0 <br /> U> /VQ 9340 h(FR <br /> CC list on next page. 7 ~ <br /> O�CA L I F OR�\P <br />