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1 <br /> CbCurtis &Tompkins.Lid. <br /> CASE NARRATIVE <br /> Laboratory number: 227376 <br /> Client: URS Corporation <br /> ' Project: DVI-BP <br /> Location: DVI-Burn Pit <br /> Request Date: 04/19/11 <br /> ' Samples Received: 04/19/11 <br /> This data package contains sample and QC results for one soil sample and one <br /> ' water sample, requested for the above referenced project on 04/19/11. The <br /> samples were received cold and intact. <br /> ' TPH-Purgeables and/or BTXE by GC (EPA 8015B) : <br /> No analytical problems were encountered. <br /> Volatile Organics by GC/MS (EPA 8260B) Water: <br /> ' No analytical problems were encountered. <br /> Volatile Organics by GC/MS (EPA 8260B) Soil: <br /> ' No analytical problems were encountered. <br /> Metals (EPA 6010B and EPA 7470A) Water: <br /> No analytical problems were encountered. <br /> Metals (EPA 6010B and EPA 7471A) Soil: <br /> Low recoveries were observed for mercury in the MS/MSD for batch 173940; the <br /> ' parent sample was not a project sample, the BS/BSD were within limits, and <br /> the associated RPD was within limits. No other analytical problems were <br /> encountered. <br /> Hexavalent Chromium (EPA 7196A) : <br /> No analytical problems were encountered. <br /> i <br /> t <br /> Page 1 of 1 <br /> ' 31.0 <br /> 2of35 <br />