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~CZ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Sorinos. CO 8048i/8001 334-5493 <br />Brown and Caldwell ACZ Sample ID: L45050-01 <br />Project ID: 22421.002 Date Sampled: 03/24/04 12:00 <br />Sample ID: MW-002 Date Received: 03I25I04 <br /> Sample Matrix: Ground Water <br />Wet Chemistry <br /> ~ ~ . •~ .. - <br />Alkalinity as CaC03 SM2320B -Titration <br />Bicarbonate as 213 mg/L 2 10 03/25/04 0:00 jjc <br />CaC03 <br />Carbonate as CaC03 U mg/L 2 10 03/25/04 0:00 jjc <br />Hydroxide as CaC03 U mg/L 2 10 03/25/04 0:00 gc <br />Total Alkalinity 213 mg/L 2 10 03/25/04 0:00 jjc <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -6.3 % 04/16/04 0:00 talc <br />Sum of Anions 31.2 meq/L 0.1 0.5 04/16/04 0:00 talc <br />Sum of Cations 27.5 meq/L 0.1 0.5 04/16/04 0:00 talc <br />Chloride M325.2 - Colorimetric 38 mg/L 1 5 04/09/04 14:47 kmc <br />Fluoride SM4500F-C 0.6 mg/L 0.1 0.5 04/14/0414:00 jjc <br />Hardness as CaC03 SM2340B -Calculation 1010 mg/L 1 7 04/16/04 0:00 talc <br />Lab Filtration SM 3030 B 03/26/04 11:23 jjc <br />Lab Filtration & SM 3030 B 03/25/04 15:39 scp <br />Acidification <br />Nitrate as N, dissolved Calculation: N03N02 minus N02 0.07 B mg/L 0.02 0.1 04/16/04 0:00 talc <br />Nitrate/Nitrite as N, M353.2 -Automated Cadmium 0.07 B mg/L 0.02 0.1 03/25/04 19:20 jjr <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 -Automated Cadmium U ' mg/L 0.01 0.05 03/25/04 19:20 pr <br /> Reduction <br />Nitrogen, ammonia M350.1 -Automated Phenate 0.29 B mg/L 0.05 0.3 04/13/04 14:04 ksj <br />Residue, Filterable M160.1 -Gravimetric 2020 mg/L 10 20 03/31/04 15:59 jjc <br />(TDS) @180C <br />Sulfate <br />TDS (calculated) <br />TDS (ratio - <br />measured/calculated) <br />M375.3 -Gravimetric <br />Calculation <br />Calculation <br />1230 mg/L 100 500 04/0810410:25 jjc <br />1930 mg/L 10 50 04/16!04 0:00 talc <br />1.05 04/16/04 0:00 talc <br />REPIN.01.11.00.01 'Please re/er to Extended Quali/ier Report for detail. <br />L45050: Page 3 of 36 <br />