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Page 2 <br /> December 7, 1999 INORGANIC Quality Assurance Report for sample(s) STK935379: 1-3 <br /> Quality Assurance Cont'd. <br /> BATCH EPA BLANK QA/OC CALIBRATION QA/QC METHOD QA/QC <br /> Constituent ID Method Units DQO/DLR Result NOTE Type Conc. % REC AR NOTE Type Conc. X REC % REC AR % DIF MAV NOTE <br /> Fluoride 1118B215 41108 mg/L N/A LCS 5,000 103 . 90-110 MS 5.000 94.8 95.2 69-131 0.4 11.5 <br /> PH 1118A 38 4500-H B units N/A CCV 8.0 100 95-105 Dup 7.23 N/A N/A N/A 0.8 1.4 <br /> E. C. 1118A 2A 25108 umhos/cm 1.0 0.2 CCV 999 98.6 95-105 Dup 663 N/A N/A N/A 0.3 0.8 <br /> TDS 1119A 2A 2540C mg/L --- CCV 1000 96.3 89-111 --- <br /> 1119A 2A 2540C mg/L 40 ND LCS 1000 98.7 89-111 pup 300 N/A N/A N/A 1.0 1518 y <br /> MBAS 1118Al2A 5540C mg/L N/A N/A MS 0.100 100 100 x0.12.0 0.0 0.1 <br /> NO => Not Detected at ar above DLR. T)LR => Detection Limit for Reporting purposes. N/A => Not Applicable NOTE => See note indicated below. <br /> An explanation of QA terms is provided on the reverse side of this page. <br /> Notes: <br /> 435 Sample niatrix Inay be affecting this analyte. Data was accepted based on the LCS or CCV recovery. <br /> FGL ENVIRONMENTAL, INC. <br /> ICW:kdm <br /> Kurt Wilkinson, S.S. , QA Director <br />