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ENTHALPY <br /> 6'2''41`. ANALYTICAL <br /> CASE NARRATIVE <br /> Laboratory number: 311047 <br /> Client : RNR Paving <br /> Request Date: 06/19/19 <br /> Samples Received: 06/19/19 <br /> This data package contains sample and QC results for one soil sample, <br /> requested for the above referenced project on 06/19/19. The sample was <br /> received intact. <br /> TPH-Purgeables and/or BTXE by GC (EPA 8015B) : <br /> Matrix spikes QC980250,QC980251 (batch 271567) were not reported because the <br /> autosampler had an error that stopped the sequence. No other analytical <br /> problems were encountered. <br /> TPH-Extractables bV GC (EPA 8015B) : <br /> No analytical problems were encountered. <br /> Volatile Organics bV GC/MS (EPA 8260B) : <br /> No analytical problems were encountered. <br /> Pesticides (EPA 8081A) : <br /> All samples underwent sulfur cleanup using the copper option in EPA Method <br /> 3660B. All samples underwent florisil cleanup using EPA Method 3620C. No <br /> analytical problems were encountered. <br /> Metals (EPA 6010B and EPA 7471A) : <br /> Low recovery was observed for mercury in the MSD of RNR PAVING (lab # <br /> 311047-001) ; the BS/BSD were within limits, and the associated RPD was within <br /> limits. Low recoveries were observed for antimony in the MS/MSD of RNR PAVING <br /> (lab # 311047-001) ; the BS/BSD were within limits, and the associated RPD was <br /> within limits. High recoveries were observed for barium; the BS/BSD were <br /> within limits, and the associated RPD was within limits. No other analytical <br /> problems were encountered. <br /> Page 1 of 1 <br /> 25.0 <br /> 2 of 30 <br />