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~CZ Laboratories, Inc. <br />977.? Downhill Oriva Staamhnal Sonnas. CD 80487lA001 334-5093 <br />CO Div. of Reclamation Mining & Safey ACZ Sample ID: L58843-05 <br />Project ID: Date Sampled: 09/13/06 11:20 <br />Sample ID: 5 Date Received: 09/13/06 <br />Sample Matrix: Surface Water <br />Wet Chemistry <br /> ~ ~ r • • ~ . IWfiliil <br />Alkalinity as CaC03 SM23206 -Titration <br />Bicarbonate as 254 mg/L 2 20 09/26/06 0:00 ct <br />CaC03 <br />Carbonate as CaC03 18 B mg/L 2 20 09126/06 0:00 ct <br />Hydroxide as CaC03 U mg/L 2 20 09/26/06 0:00 ct <br />Total Alkalinity 273 mg/L 2 20 09/26/06 0:00 ct <br />Conductively @25C M120.1 -Meter 734 umhos/cm 1 10 09/26/06 17:50 ct <br />Lab Filtration SM 3030 B 09/14/06 16:03 Izg <br />Lab Filtration & SM 3030 B 09/14/06 17:55 Izg <br />Acidification <br />Nitrate/Nitrite as N M353.2 - H2SO4 preserved U mg/L 0.02 0.1 '09/22/06 21:21 pjb <br />Nitrogen, ammonia M350.1 -Automated Phenate 0.05 B mg/L 0.05 0.5 09/28/06 13:07 jlf <br />pH (lab) M150.1 - Electrometdc <br />pH 8.5 H units 0.1 0.1 09/26/06 0:00 ct <br />pH measured at 25.0 C 0.1 0.1 09/26/06 0:00 ct <br />Phosphorus, ortho M365.1 -Automated Ascorbic Acid 0.03 B mg/L 0.01 0.05 09/14/06 22:43 pjb <br />dissolved <br />Residue, Filterable M160.1 -Gravimetric 450 H mg/L 10 20 09127/0618:06 cas <br />(TDS) @180C <br />Residue, Non- M160.2 -Gravimetric 16 B ' mg/L 5 20 09/20/06 14:11 cas <br />Filterable (TSS) <br />@105C <br />Sodium Absorption USGS - 11738-78 6.33 0.03 0.15 10/09/06 0:00 talc <br />Ratio in Water <br />Sulfate SM4500 S04-D 160 mg/L 10 50 10/02/06 16:10 jk <br />REPIN.02.06.05.01 <br />' Please refer [o Qualifier Reports for detail. <br />L58843: Page 12 of 25 <br />