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= = ENVIRONMENTAL <br /> Analytical Chemists <br /> April 23, 1997 INORGANIC Quality Assurance Report for sample: 732038 <br /> Luhdorff & Scalmanini , Consulting Eng. <br /> 500 First Street <br /> Woodland CA 95695 <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 /> Total Alkalinity 7A 3A 23208 mg/L N/A CCV 2500 100 75-125 Dup 168 N/A N/A N/A 0.0 5.9 <br /> Hydroxide 7A 3A 23208 mg/L N/A N/A Dup 0.000 N/A N/A N/A 0.0 20.0 <br /> Carbonate 7A 3A 2320B mg/L N/A N/A Dup 0.000 N/A N/A N/A 0.0 11.1 <br /> Bicarbonate 7A 3A 2320B mg/L N/A N/A Dup 205 N/A N/A N/A 0.0 4.3 <br /> Sulfate 1A 3A 4110E mg/L 1.0 ND CCV 25.0 99.4 90-110 MS 100 101 101 75-125 0.1 20.0 <br /> Chloride 1A 3A 4110B mg/L 1.0 ND CCV 25.0 91.6 90-110 MS 100 96.8 99.2 75-125 2.3 20.0 <br /> Nitrate 1A 3A 4110E mg/L 0.40 ND CCV 10.0 94.9 90-110 MS 50.0 97.8 96.6 75-125 1.2 20.0 <br /> Nitrite as N to 3A 41108 mg/L 0.10 ND CCV 5.00 103 90-110 MS 20.0 103 105 75-125 2.3 20.0 <br /> Phosphate 1A 3A 41108 mg/L 0.30 NO CCV 5.00 101 90-110 MS 10.0 96.7 98.4 75-125 1.7 20.0 <br /> Fluoride 1A 3A 4110B mg/L 0.10 ND CCV 5.00 100 90-110 MS 10.0 98.3 95.9 75-125 2.5 20.0 <br /> PH OA 3A 4500-H B units N/A CCV 7.00 100 90-110 Dup 6.80 N/A N/A N/A 0.0 2.9 <br /> E. C. OA 38 25108 umbos/cm2 N/A CCV 10000 99.2 75-125 Dup 788 N/A N/A N/A 0.1 3.0 <br /> TDs OA 3A 2540C mg/L 40 ND LCS 1000 98.0 82-130 Dup 412 N/A N/A N/A 1.9 20.0 <br /> MEAS OA13A 5540C mg/L N/A N/A Dup 0.000 N/A N/A N/A 0.0 0.1 <br /> FGL ID = 19970409 ND => Not Detected at ar above DLR. DLR => Detection Limit for Reporting purposes. N/A => Not Applicable NOTE => See note indicated below. <br /> Notes and comments continued next page . . . . . <br /> Cornnrate Offices& Laorat!na Office&labaratory Field Offic� <br /> P.O-Box 2721853 Corporation Street 2500 Stagecoach Road Visalia,California <br /> Santa Paula.CA 93061-0272 Stockton,CA 95215 TEL:(209)734-9473 <br /> 7r=1-inns)Fso_nat n TEL:(209)942.0181 Mobile:(201A 7,17.2:19P <br />