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'd — <br /> 000 <br /> CLEARWATEI <br /> G R O U P <br /> Envirnnrnentnl Services <br /> • Clearwater recommends that the corrective action plan (CAP) be updated for evaluation of <br /> effective source area remediation methods and technologies in the (hot-spot) vicinity of AS- <br /> 1 , IW-7, IW-6, and DPW- 1 . In this source area remediation CAP, Clearwater proposes to <br /> update the current remediation strategy based on new information obtained in 2009 during <br /> the production of the Site Conceptual Model and the groundwater remediation rebound test; <br /> the estimate (of pre-remediation sorbed-phase residual source zone contamination) was at <br /> 463 gallons of TPH-g. If it is determined that additional remedial approaches will move the <br /> project toward case closure, and the SJEHD concurs, Clearwater will create a remediation <br /> action plan (RAP) for additional focused remediation for submittal to SJEHD. <br /> • On Site meeting of Property Owner, SJEHD and Clearwater staff to agree on strategy for <br /> case closure. <br /> • To test the theory that the soil interval (which is actively leaching the TPH-g) is the 22-25 <br /> foot bgs subsurface zone, Clearwater proposes samp mg, on event, at least one So( <br /> well with low-flow technique at two depths . Clearwater proposes using well DPW- 1 for this <br /> fs oLi-, L� 2 <br /> purpose; well DPW- 1 is screened between 10 and 30 feet bgs. Sampling at 13 (or at least 2 <br /> feet below the groundwater level, if the groundwater level is lower than 10 feet bgs) and 23 <br /> feet bgs would provide depth discrete information which can substantively guide the future <br /> remediation at this site. <br /> GEOTRACKER <br /> Clearwater uploaded the depth-to-water data spreadsheet known as GEO_WELL to the State of <br /> California GeoTracker website (www. geotracker. swrcb.ca. gov) on October 20, 2009. The <br /> electronic laboratory report (EDF) was also uploaded to the GeoTracker website on October 20, <br /> 2009. Confirmations of the submittal of these data electronically to the website are included <br /> (Attachment F) . This report, upon its completion and certification, will be converted into a PDF <br /> file and uploaded to the GeoTracker website per the January 1 , 2005, GEO_REPORT <br /> requirement. <br /> ZB 178N — Barnes Trucking Facility 7 November 2009 <br /> Third Quarter 2009 Quarterly Monitoring Report <br />