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Page 2 <br /> February 13, 1998 INORGANIC Quality Assurance Report for sample: 830470 <br /> Quality Assurance COnt'd. <br /> BATCH BLANK QA/QC CALIBRATION QA/QC METHOD QA/QC <br /> Constituent ID Method Units DLR Result NOTE Type Conc. % REC AR NOTE Type Conc. % REC % REC AR % DIF MAV NOTE <br /> Nitrate 7A 2C 300.0 mg/L 0.40 NO CCV 40.0 99.9 90-110 14S 440 105 105 88-113 0.4 4.1 <br /> Fluoride OA 2A 300.0 mg/L 0.10 ND CCV 5.00 102 90-110 MS 50.0 103 97.2 80-120 5.5 20.0 <br /> 0A 2B 300.0 mg/L 0.10 NO CCV 5.00 103 90-110 MS 50.0 98.2 97.4 80-120 0.8 20.0 <br /> 7A 2C 300.0 mg/L 0.10 ND CCV 5.00 105 90-110 MS 50.0 106 105 80-120 0.3 20.0 <br /> E- C- 1A 2A 25108 timihos/c2 1.0 ND CCV 995 99.8 95-105 Dup 811 N/A N/A N/A 0.0 1.3 <br /> TDS 2A 2A 2540C mg/L 40 12 LCS 1000 106 89-111 Dup 632 N/A N/A N/A 1.3 6.2 <br /> 8A 28 2540C mg/L 40 HD LCS 1000 90.0 89-111 Dup 550 N/A N/A N/A 0.7 15.8 <br /> FGL ID = 19980128 NO => Not Detected at or above DLR. "DLR => Detection Limit for Reporting purposes. N/A => Not Applicable NOTE => See note indicated below. <br /> Notes: <br /> 410 Matrix Spike (MS) not within Acceptance Range (AR) and/or Relative Percent Difference (RPD) not within <br /> Maximum "Allowable Value (MAV) . Batch qualified based on the LCS, CCV, or ICU recovery. <br /> FGL NVIRONMENTAL, INC. <br /> KW:kdm <br /> Kurt Wilkinson, B.S. , QA Director <br />