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A~Z Laboratories, Inc. ° " ~ ~ ; • 2773 Downhill Dave Steamboat Springs, CO 80487(800) 334-5493 Fir ; ~ ~ '~, Lorencito Coal Company ACZ Sample ID: L49298-03 Project ID: Date Sampled: 17)28/04 11:59 Sample ID: PRGTY-2 Date Received: 1 y29/04 Sample Matrix: Surface Water Wet Chemistry - l~'~~ - _ ° f t P ~ . Alkalinity as CaCO3 SM23208 - Titratron Bicarbonate as 196 mg/L 2 10 01!04/OS 0:00 jah CaCO3 Carbonate as CaCO3 U mg/L 2 10 07/04/05 0:00 jah Hydroxide as CaCO3 U mglL 2 10 01/04105 0:00 jah Total Alkalinity 196 mg/L 2 10 01/04105 0:00 jah Ammonia as N, un- M350.1 -Calculation U mg/L 0.01 0.05 0126/05 0:00 plc ion¢ed Callon-Anion Baance Calalation Callon-Anion Balance -2.9 % 012fi/OS 0:00 plc Sum of Anions 5.3 meglL 0.1 0.5 01/26/050:00 plc Sum of Cations 5.0 meglL 0.1 0.5 01126/05 0:00 plc Chloride M325.2-Colorimetric 7 mglL 1 5 07/07/0517:26 ccp Conductivity (a~25C M120.1 -Meter 437 umhoslcm 1 10 01/04/05 16:34 jah Hardness as CaCO3 SM23408 - Calcula0on 190 mglL 1 7 0126/05 0:00 plc Lab Filtra8on SM 3030 B 1229!04 17:51 jah Lab Filtration 8 SM 3030 B 1229/04 19:26 ak Aadifip8on • Nitrogen, ammonia M350.1 -Automated Phenate U mglL 0.05 0.5 01106/05 13:27 ccp pH (lab) M750.1 -Electrometric 8.2 H units 0.1 0.1 01/04/0516:34 jah Residue, Filterable M160.1 - Gravimetric 360 mglL 10 ZO 01/04/05 9:46 ktd (TDS) ~180C Residue, Non- M1fi0.2-Gravimetric 10 B mglL 5 20 12129/0416:38 ktd Filtemble (TSS) (a~t05C Sodium Absorption USGS - 11738-78 0.87 0.03 0.15 01126!05 0:00 pk RaBo in Water SuBate M375.3-Gravimetric 60 mglL 70 50 01/11/0511:13 Ims TDS (calculated) Calculation 281 mg/L t0 50 0126/05 0:00 plc TDS (ratio - CalaWBOn 1.35 0126/05 0:00 plc measured/calculated) • RFPIN.01.11.00.01 Please re7erto [xtended Qualifier Report fur detail. 1A9298: Page 7 of 15