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CASE NARRATIVE/CONFORMANCE SUMMARY <br /> Client: Cemex Job No D80386 <br /> Site: Lyons Quarry TR-15 Kiln Baghouses Dust Report Date 3/21/2016 11:5737 AM <br /> On 03/02/2016, 1 sample(s),0 Trip Blank(s),and 0 Field Blank(s)were received at Accutest Mountain States(AMS)at a temperature <br /> of 24.2'C.The samples were intact and properly preserved,unless noted below. An AMS Job Number of D80386 was assigned to <br /> the project. The lab sample ID,client sample ID,and date of sample collection are detailed in the report's Results Summary. <br /> Specified quality control criteria were achieved for this job except as noted below. For more information,please refer to the analytical <br /> results and QC summary pages. <br /> Metals By Method SW846 6010C <br /> Matrix LEACHATE Batch ID: MP18196 <br /> ■ All samples were digested and analyzed within the recommended method holding time. <br /> ■ All method blanks for this batch meet method specific criteria. <br /> ■ Sample(s) D80386-1BMS,D80386-1BMSD,D80386-IBSDL were used as the QC samples for the metals analysis. <br /> ■ The blank spice(BS)recovery(s)of Selenium are outside control limits.All sample results<RL. <br /> ■ The matrix spike(MS)and matrix spike duplicate(MSD)recovery(s)of Arsenic,Selenium,Silver are outside control limits. <br /> Spike recovery indicates possible matrix interference. <br /> ■ The serial dilution RPD(s)for Arsenic,Cadmium,Lead,Selenium,Chromium are outside control Inuits for sample MP 18196- <br /> SDI. Percent difference acceptable due to low initial sample concentration(<50 times IDL). <br /> ■ MP18196-SDI for Chromium:Serial dilution indicates possible matrix interference. <br /> Matrix SO Batch ID: MP18202 <br /> ■ All samples were digested and analyzed within the recommended method holding time. <br /> ■ All method blanks for this batch meet method specific criteria. <br /> ■ Sample(s) D80386-1MS,D80386-1MSD,D80386-1SDL were used as the QC samples for the metals analysis. <br /> ■ The matrix spike(MS)recovery(s)of Molybdenum,Uranium are outside control limits. Spike recovery indicates possible matrix <br /> interference. <br /> ■ The matrix spike duplicate(MSD)recovery(s)of Molybdenum,Nickel,Uranium are outside control limits. Probable cause due to <br /> matrix interference. <br /> ■ The serial dilution RPD(s)for Beryllium,Silver,Thallium,Uranium,Arsenic,Chromium,Lead,Molybdenum,Nickel,Selenium are <br /> outside control limits for sample MP18202-SDI. Percent difference acceptable due to low initial sample concentration(<50 <br /> tunes IDL). <br /> ■ MP18202-SDI for Arsenic,Chromium,Lead,Molybdenum,Nickel,and Selenium:Serial dilution indicates possible matrix <br /> interference. <br /> Matrix SO Batch ID: MP18271 <br /> ■ All samples were digested and analyzed within the recommended method holding time. <br /> ■ All method blanks for this batch meet method specific criteria. <br /> ■ Sample(s) D80386-1MSD,D80386-1SDL,D80386-1MS were used as the QC samples for the metals analysis. <br /> ■ The matrix spike(MS)and matrix spike duplicate(MSD)recovery(s)of Antimony are outside control limits. Spike recovery <br /> indicates possible matrix interference. <br /> ■ The serial dilution RPD(s)for Antimony are outside control limits for sample MP18271-SDI. Percent difference acceptable due <br /> to low initial sample concentration(<50 tunes IDL). <br /> Metals By Method SW846 7470A <br /> Matrix LEACHATE Batch ID: W18197 <br /> ■ All samples were digested and analyzed within the recommended method holding time. <br /> ■ All method blanks for this batch meet method specific criteria. <br /> ■ Sample(s) D80386-1BMS,D80386-1BMSD were used as the QC samples for the metals analysis. <br /> Monday,March 21,2016 Page 1 of 2 <br /> SGS ACCUTEST <br /> D80386 <br />