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ACZ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Sodnas. CO 80487/8001 334-5493 <br />Wet Chemistry <br /> • . •. .. I~ <br />Alkalinity as CaC03 SM23208 -Titration <br />Bicarbonate as 419 H mg/L 2 20 10/06/06 0:00 ct <br />Bicarbonate <br />Carbonate as UH mg/L 2 20 10/06/06 0:00 ct <br />Carbonate <br />Hydroxide as UH ` mg/L 2 20 10/06/06 0:00 ct <br />Hydroxide <br />Total Alkalinity 343 H mg/L 2 20 10/O6/O6 0:00 ct <br />Conductivity @25C M120.1 -Meter 2980 umhos/cm 1 10 10/09/06 16:17 ct <br />Lab Filtration SM 3030 B 10/06/06 12:16 Izg <br />Lab Filtration & SM 3030 B 10105/06 11:48 mis <br />Acidification <br />Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.19 ` mg/L 0.02 0.1 10/04/06 20:06 pjb <br />Nitrogen, ammonia M350.1 -Automated Phenate 0.89 mglL 0.05 0.5 10/05/06 17:38 jag <br />pH (lab) M150.1 - Electrometric <br />pH 8.3 H uniLS 0.1 0.1 10/06/06 0:00 ct <br />pH measured at 21.0 C 0.1 0.1 10106/06 0:00 ct <br />Phosphorus, onho M365.1 -Automated Ascorbic Acid 0.38 H mg/L 0.01 0.05 10104/06 21:27 pjb <br />dissolved <br />Residue, Filterable M160.1 -Gravimetric 4960 H mg/L 10 20 10/05/0618:12 cos <br />{TDS) @180C <br />Residue, Non- M160.2-Gravimetric UH • mg/L 5 20 10/07/0612:04 cos <br />Filterable (TSS) <br />@tOSC <br />Sodium Absorption USGS - 11738-78 9.66 0.03 0.15 10/12/06 0:00 talc <br />Ratio in Water <br />Sulfate SM4500 S04-D 3020 mg/L 10 50 10/09/06 10:44 mtb <br />Note: This report is for additional analysis of the sample previously reported as ACZ project L56816-05. <br />REPIN.02.06.05.01 • Please re/er to Quali/ier Reports /or detail <br />L59228: Page 4 of 8 <br />Twentymile Coal Co. ACZ Sample ID: L59228-01 <br />Project ID: Date Sampled: 09/12/06 00:00 <br />Sample ID: 85 Date Received: 10/04/06 <br />Sample Matrix: Surface Water <br />