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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br /> <br />ACZ labarrtorrer, Jne. Lab Sample ID : L9438-16 <br />30400 Downhia Drire Client Sample ID : 79-1 <br />I l <br />Suamboar Spring, CO 80187 Client Project 1D : I <br />~' ., - <br />(800) 3365493 ACZ Report ID : RG25468 ~ <br />Kerr Coal Company Date Sampled : 4/25/9613:00 <br />P.O. Box 487 Date Received: 4/29/96 <br />Walden, CO 80480 Date Reported: 5/10/96 <br />George Patterson <br /> Sample Matrix: Surface Worer <br />Field Data <br />Conduc[iviry (Field) Field Meazurement 2300 umhos/cm 4/25/96 jm <br />pH (Field) Field Measurement 8.1 units 485/96 jm <br />Temperance (Field) Field Measurement 8.0 C 425/96 jm <br />Metals Anal sis <br />Calcium, dissolved M200.7ICP 30.1 mg/L 0.2 I 5lL96 n <br />Iron, dissolved M200.7 ICP 0.05 B mg/L 0.01 0.05 58196 rs <br />Magnesium, dissolved M200.7 ICP 3.3 mg/L 0.2 1 52/96 n <br />Manganese, dissolved M200.71CP 0.093 mg/L 0.003 0.03 52!96 n <br />Potassium, dissolved M200.71CP 2.3 mg/L 0.3 ( 52N6 n <br />Sodium, dissolved M200.1 ICP 494.0 mg/L 0.3 I 52196 ~ n <br />Wet Chemist <br />Alkaliniry az CaCO3 M3I0.1 <br />Bicarbonate as CaCO3 422 mg/L 2 10 5/1196 ss <br />Carbonate as CaCOI U mg/L 2 10 5/IN6 ss <br />Hydroxide as CaCOJ U mg/L 2 10 5/1/96 ss <br />Total Alkalinity ~ 722 mg/L 2 10 5/1/96 ss <br />Cation-Mion Balance Calculation <br />Cation-Mion Balance -0.3 % 5/10196 talc <br />Sum of Mions 23.70 meq/L 0.01 0.05 5/10196 talc <br />Sum offazions ?7.60 meq/L 0.01 0.05 5/ION6 talc <br />Chloride M325.2 - Colorimetric (RFA) 28 mg/L I 5 52/96 hm <br />Hardness ss CaCO3 Calculation baud on dissolved Mg & Ca 89 mg/L 1 1 5/10/96 talc <br />Lab Filtration °•° 4/30N6 jaw <br />Lab Filtration & Acidification ••° 4!30/96 jaw <br />Nitrate az N, dissolved M353.2 -Automated U mg/L 0.02 0.1 4!30/96 hm <br />NirratdNitrite az N, dissolved M357.2 -Automated Cadmium Reductio U mg/1, 0.02 0.1 4I30N6 hm <br />Nitrite az N, dissolved M353.2 -Automated U mg/L 0.01 0.05 4/30N6 hm <br />Residue, Filterable (TDS) ~180C M160.1 - Gravimetric 1460 mg/L 10 20 4/30/96 jk/sa <br />Sodium Absorption Razio in Wazer USGS -11776-78 23.10 0.03 0.15 5/10196 talc <br />Sulfate M375.3-Gravimetric 690 mg/l, 10 20 52/96 sak <br />TDS (calculated) Calculation 1500 mg/L 10 50 5/10/96 talc <br />TDS (ratio - meazured/calculazed) Calculation 0.97 5/10/96 talc <br />a i <br />U = Anazytc was anNyzed for but not detected az the indicated MDL , <br />B = Analyze concentration detected at a value between MDL and PQL <br />PQL =Practical Quanutation Limit <br />REPIN101.03.9501 Page 1 of 1 <br />KYr <br />Vice President of Operations: Ralph Pcul>cn <br />