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Page 2 <br /> May 27, 1999 INORGANIC Quality Assurance Report for sample: 931979 <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 Cone. % REC AR NOTE Type Cone. y REC % REC AR % DIF MAV NOTE <br /> Bicarbonate 1A 2A 23208 mg/L N/A N/A Dup 417 N/A N/A N/A 4.2 6.5 <br /> 14A 2A 2320B mg/L H/A N/A Dup 317 N/A N/A N/A 1.1 6.5 <br /> sulfate 1A 2B 300.0 mg/L 1.0 ND LCS 100 102 90-110 MS 1000 102 103 74-134 1.3 10.7 <br /> 14A 28 300.0 mg/L 1.0 NO LCS 100 98.6 90-110 MS 1000 97.8 98.6 74-134 0.5 10.7 <br /> Chloride 1A 28 300.0 mg/L 1.0 0.2 LCS 50.0 101 90-110 M5 500 98.9 98.8 82-130 0.0 13.6 <br /> 14A 28 300.0 mg/L 1.0 0.1 LCS 50.0 96.7 90-110 MS S00 96.5 96.8 82-130 0.3 13.6 <br /> Nitrate 1A 28 300.0 mg/L 0.40 ND LCS 40.0 105 90.110 M5 400 105 105 86-124 0.2 13.7 <br /> 14A 28 300.0 mg/L 0.40 ND LCS 40.0 101 90.110 MS 400 101 101 86-124 0.1 13.7 <br /> Nitrite as N 10 3A 1450ONO2B mg/L 0.10 ND CCV 0.125 101 90-110 MS 0.125 93.7 96.0 75-125 2.4 20.0 <br /> Fluoride 1A 28 300.0 mg/L 0.10 ND LCS 5.00 101 90-110 MS 50.0 99.5 100 69-131 0.5 11.5 <br /> 14A 2B 300.0 mg/L 0.10 NO LCS 5.00 98.8 90-110 MS 50.0 96.0 96.9 69-131 1.0 11.5 <br /> pll OA 3A 4500-H 8 units N/A CCV 8.00 100 95-105 Dup 7.00 N/A N/A N/A 0.0 10.0 <br /> E. C. 2A 2B 25108 urrhos/cm 1.0 0.2 CCV 1000 100 95-105 Dup 1200 N/A N/A N/A 0.1 0.8 <br /> TDS 2A 2A 2540C mg/L 40 N0 LCS 1000 99.6 89-111 Dup 106D N/A N/A N/A 1.1 1518 <br /> MBAR 1A13A 5540a 'mg/L N/A N/A pup 0,000 N/A N/A N/A 0.0 0.1 <br /> FGL ID = 19990511 ND => Not Detected at above DLR. DLR => 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 and comments continued next page . . . . . <br />