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` Eonno G.Bnoart JR. <br /> oart�� <br /> 6A Lt�0!!ti iO <br /> R dwa aw RGora4uez <br /> Wer BUA1�S �fOifFOR <br /> OfMn01t11CMAL RgI!lC710M <br /> Central Valley Regional Water Quality Control Board <br /> 27 February 2013 <br /> Joe Michaud Mark Poe and Robin Stafford <br /> Newark Paperboard Mills Morrison & Foerster LLP <br /> 9 Eno Drive 425 Market Street <br /> Exeter, NH 03833 San Francisco, CA 94105 <br /> DOCUMENT REVIEW, THE NEWARK GROUP, INC. (CASE 2), 800 WEST CHURCH <br /> STREET, STOCKTON, SAN JOAQUIN COUNTY, REGIONAL BOARD CASE 391188 <br /> 1 reviewed the Conceptual Site Model Report(Report) received 1 February 2013 from <br /> The Newark Group, Inc. consultant URS. The Report was written in accordance with <br /> the California Leaking Underground Fuel Tank Manual dated September 2012. The <br /> Report objectives were: <br /> • To convey an understanding of the origin, nature, and lateral and vertical extent <br /> of the petroleum impacts, <br /> • To identify potential contaminant fate-and-transport processes and pathways, <br /> • To identify potential human and environmental receptors that may be impacted <br /> by the petroleum associated with the site, <br /> • To guide site investigation activities and identify additional data needed (if any) to <br /> draw reasonable conclusions regarding the source(s), pathways, and receptors, <br /> and <br /> • To frame the evaluation of risk to human health, safety, and the environment <br /> posed by the petroleum at the site. <br /> The Report includes an evaluation of the data in the Advanced GeoEnvironmental, Inc. <br /> Limited Subsurface Investigation Report(2004), the MACTEC Additional Site <br /> Investigation (2005), and the URS Report for Site Investigation Activities (2012) that <br /> was reviewed in my 15 November 2012 letter (Letter), which stated that additional <br /> delineation to the south and west of boring B-33 would fill an onsite lateral extent data <br /> gap. The Letter concurred to the URS recommendation to submit the site conceptual <br /> model (SCM) and the sensitive receptor survey (SRS), and to delay further delineation <br /> of the plume(s) pending my review of the SCM and SRS. The Report also discussed <br /> the Site groundwater flow direction and the screened intervals for three monitoring wells <br /> KML E. Lamer 8cD,P.E.,GWM 1 PAMELA O.CnetooN P.E.,ROM F ux"TTWE OF'FlGEn <br /> 1 t=Sun Cwitw Oft@#=Plutaho Cwdoaa,CA QW1 I wreg..waa.ro8•rCWL0a oo.ro.WW vasyr <br /> Q ntxve«o twca <br />