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Acz <br />ACZ fnbonrzorie.r, /nc. Lab Sample ID: LJ3628-09 <br />3P000 ObwnhiQ orivr Client Sample ID: 327 <br />Strambom Springt, CO 804b7 Client Project ID: <br />• (800) 33L5493 ACZ Report ID: RGJ3532 <br />Kerr Coal Co. Date Sampled: 4/30/97 03:07 <br />P.O. BOx 487 Date Received: 5/2/97 <br />Walden, CO 80480 Date Reported: 5//9/97 <br />Jim Mossman <br />cc: Jay James Sample Matrix: Surface Water <br />Conductivity (Field) Field Meazurcmcnt 400 umhos/cm 4/30/97 jm <br />pH (Field) Field Meazurcment 6.2 units 4/30/97 jm <br />Tempemmrc (Field) Field Measurement 10.0 C 4/30/97 jm <br />Metals Anal sis <br />Calcium, dissolved M200.71CP 39.1 mg/L 0.2 I 5/3N7 jaw <br />Iron. total M200.7 ICP 3.92 mg/L O.OI 0.05 5/9N7 jaw <br />Magnesium, dissolved M200.7 ICP 13.1 mg/L 0.2 1 5/3/97 jaw <br />Manganese, total M200.7 ICP 0.044 mg/L 0.005 0.03 5/9197 jaw <br />Potazsium, dissolved M200.7 ICP 4.0 mg/L 0.3 I 5/3/97 jaw <br />Sodium, dissolved M200.7 ICP 59.0 mg/L 0.7 f 5/3/97 jaw <br />Metals Pre <br />Total Hot Plate Digestion M30I0ICP 5/9/97 tae <br />Wet Chemist <br /> r <br />Alkalinity az CaC03 M310.1 <br />Bicarbonate az CaC03 136 mg/L 2 l0 5!3/97 jb <br />Carbonate az CaC03 U mg/L 2 10 5/3/97 jb <br />Hydroxide az CaC03 U mg/L 2 10 5/3/97 jb <br />Total Alkalinity 136 mg/L 2 IO 5/3/97 jb <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance 3.6 % S/19N7 talc <br />Sum of Anions 5.33 meq/L 0.01 0.05 5/19/91 talc <br />Sum o(Cations 5.73 meq/L 0.01 0.05 5/19AJ7 talc <br />Chloride M326.2-Colorimetric (RFA) 3 B mg/L I 5 5/16/97 jb <br />Hardness az CaC03 Calculation hazed on dissofved Mg & Ca 152 mg/I- I 7 5/19N7 talc <br />Lab Filtration ••• 5lL97 rd <br />Lab Filtration & Acidification ••• 5/7J97 rd <br />Nitrate az N, dissolved M351.2 -Automated Cadmium Reduction 0.15 mg/L 0.02 0.1 5/L97 jb <br />NitrateMitrite az N, dissolved M353.2 -Automated Cadmium Reduction 0.15 mg/L 0.02 0.1 5lL97 jb <br />Nitrite az N, dissolved M353.2 -Automated Cadmium Reduction U mg/L 0.01 0.05 5lL97 jb <br />Residue, Filterable (TDS) Q180C M160.1 -Gravimetric 320 mg/L 10 20 5/6!97 Iw <br />Residue, Non-Filterable (TSS) Q103-SC MI60.2 -Gravimetric 12 B mg/L 5 20 5/6/97 bgh <br />Sodium Absorption Ratio in Water USGS - 11738-78 2.11 0.03 0.15 5/19N7 talc <br />Sulfate M375.3-Gravimetric 120 mg/L 10 20 5/9/97 bgh <br />U =Analyte was analyzed for but nor detected at the indicated MDL <br />B =Analyte concentration detccted at a value bc[ween MDL and PQL DI /~~~ <br />~PQL =Practical Quantization Limit /1 y <br />Vice President of Operations: Ralph Poulson <br />REPIN701.03.95.01 Page 1 of 2 <br />