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Page 2 <br /> March 15, 2000 INORGANIC Quality Assurance Report for sample: 30909 <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 X REC AR % DIF MRV NOTE <br /> Fluoride 4A215 4110E mg/L N/A LCS 5.000 104 90-110 MS 50.00 105 108 69-131 3.1 11.5 <br /> pH OA 3A 4500-H B units N/A CCV 8.00 100 95.105 Dup 6.90 N/A N/A N/A O.D 2.9 <br /> E. C. OA 3A 25108 umhos/cm2 N/A CCV 1000 101 95-105 Dup 97.2 N/A N/A N/A 0.1 1.1 <br /> TDs 6A 2A 2540C mg/L 40 ND LCS 1000 98.9 89-111 Dup 1490 N/A N/A N/A 0.4 15.8 <br /> 7A 2A 25400 mg/L 40 NO LCs 1000 97.6 89.111 cup 348 N/A N/A N/A 5.9 19.8 <br /> M9AS OA13A a540c lira/L N/A �.-�•.^.� N/A fila 9.F 100 14� 4: p O.Q 0.1 <br /> FGL lD 20000224 ND => Not Detected at above DLR. DLR — Detection Limit for Reporting purposes. N/A => Not Applicable NOTE z> See note indicated below. <br /> An explanation of QA terms is provided on the reverse side of this page. <br /> FGL ENVIR NMENTAL, INC. <br /> KW:cea <br /> Kurt Wilkinson, B.S. , QA Director <br />