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<br />CHIAiNEY ROCF: COAL <br />HYDROLOGIC INVESTIGATIONS <br />Physical and Chemical Parameters (Mg/L) <br />5/1/81 - Month 07 <br />Station Hardness (CaC03) TDS TSS Carbonate Chloride Fluoride <br />S-1 547 818 1.6 0.6 38 1.20 <br />5-2 530 740 4.0 0.7 25 1.19 <br />W-1 564 *830 *440 c .5 37.5 1.40 <br />W-2 68 430 6.0 1.3 25 0.70 <br />W-3 Lost to Ptine Expansion <br />W-5 445 615 59 G .5 25 1.24 <br />W-7 581 875 < 0.5 L.5 38 1.18 <br />W-8 462 687 3.0 L.5 25 1.18 <br /> Nitrogen <br />Station NN N0 N02 S ulfat e Sulfide HC03 HP04 <br /> 3 3 <br />S-1 0.7 0.1 c 0.1 332 0.1 240 L 0.1 <br />S-2 0.7 0.06 C 0.06 296 0.04 230 < 0.1 <br />W-1 1.3 0.18 < 0.1 372 0.05 230 ~ 0.1 <br />W-2 0.7 L 0.02 < 0.02 50 0.04 420 0.7 <br />W-3 Lest to Mine Expa nsion <br />W-5 0.9 0.26 < 0.2 150 0.04 310 < 0.1 <br />W-7 0.9 0.2 C 0.2 328 0.16 240 < 0.1 <br />W-8 0.7 0.09 < 0.09 252 0.04 240 < 0.1 <br />* T.S. = 835 Mg/L due to high organic content of surface suspended material <br />