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HONEYWOOD COAL COMPANY <br /> WATER MONITORING DATA <br /> LOCATION: R-1 Reed Chatfield Ditch <br /> Quarterly. Full Suite <br /> QUARTER: 3rd 91 4th 91 1st 92 2nd 92 3rd 92 4th 92 <br /> DATE: UNITS 8/28/91 12/28/91 3/21/92 6/30192 9/30/92 12/30/92 MIN MAX AVG <br /> Flow (cfs) cfs 2 Dry Dry 2.3 1.25 Dry 0 2.3 0.92 <br /> Flow (gpm) gpm 898 898 898 898 <br /> PH pH units 8.4 8.4 8.1 8.1 8.4 8.3 <br /> Conductivity a 25 C umhos/cm 425 335 900 335 900 553 <br /> Total Dissolved Solids mg/t 2020 260 664 260 2020 981 <br /> Total Suspended Solids mg/l 5 2 2 5 4 <br /> Sodium Absorption Ratio - - 0.20 0.87 0.20 0.87 0.53 <br /> Dissolved Oxygen a 20 C mg/t 8.0 8.9 8.0 8.9 8.5 <br /> Bicarbonate (HCO3) mg/l 124 168 124 168 146 <br /> Carbonate (CO3) mg/t 0 0 0 0 0 <br /> Calcium (Ca) mg/t 56 103 56 103 80 <br /> Chloride (Cl) mg/l 9 10 9 10 10 <br /> Magnesium (Mg) mg/l 5 31 5 31 18 <br /> Amonia (N) mg/l 0.00 0.00 0.00 0.00 0.00 <br /> Nitrate (N) m9/t 0.151 0.614 0.151 0.614 0.383 <br /> Nitrite (N) mg/t 0.00 0.03 0.00 0.03 0.02 <br /> Phosphate (P) mg/t 0.01 0.01 0.01 0.01 0.01 <br /> Sodium (Na) mg/l 5.7 39.0 5.7 39.0 22.4 <br /> Sulfate (SO4) mg/t 59 288 59 288 174 <br /> Aluminum (Al) mg/l 0.000 0.008 0.000 0.008 0.004 <br /> Arsenic (As) mg/l 0.000 0.000 0.000 0.000 0.000 <br /> Cadmium (Cd) mg/l 0.0002 0.0006 0.0002 0.0006 0.0004 <br /> Copper (Cu) mg/t 0.002 0.004 0.002 0.004 0.003 •Iron (Fe) mg/l 0.09 0.10 0.09 0.10 0.10 <br /> Lead (Pb) mg/l 0.003 0.014 0.003 0.014 0.009 <br /> Manganese (Mn) mg/l 0.048 0.046 0.046 0.048 0.047 <br /> Mercury (Hg) mg/l 0.00000 0.00000 0.00000 0.00000 0.00000 <br /> Molybdenum (Mo) mg/l 0.000 0.0.02 0.000 0.002 0.001 <br /> ZincSelenium (Se) ng/t <br /> Zinc 0.004 0.000 0.000 0.004 0.002 <br /> (Zn) mg/t 0.016 0.007 0.007 0.016 0.012 <br /> R-1.WK1 <br /> 3-22 <br /> April 1993 <br />