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' cb Curtis&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 82608) 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 60108 and EPA 7470A) Water: <br /> ' No analytical problems were encountered. <br /> Metals (EPA 6010E 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 /> ' Page 1 of 1 <br /> 31.0 <br /> ' 2 of 35 <br />