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HISTORICAL SUMMARY OF MONITORING RESUL <br /> SURFACE WATER <br /> HARNEY LANE SANITARY LANDFILL <br /> SWA <br /> Units:mg/l,unless noted <br /> Sample Designation SW-1 SW-1 SW-1 SW-1 -1 W-1 <br /> Sampling Date 2/17/04 12/8/04 1/3/06 1/4/08 2/25/10 1/31/11 <br /> Monitoring and Field Parameters <br /> General Water Quality Parameters <br /> pH(units) 7.12 6.93 6.61 7.00 6.83 7.05 <br /> Electrical Conductivity(umhos/cm) 246 174 312 103 150 391 <br /> Temperature(C) 16.1 141 12.1 NR 17.4 8.45 <br /> Turbidity(NTU) 46.8 86.9 >200 201 53.8 14.4 <br /> Chloride 21 8.6 17 4 4.82 27.7 <br /> Fluoride NR NR NR NR NR 0.067 <br /> Total Dissolved Solids 160 200 200 80 144 227 <br /> Total Suspended Solids NR NR NR 185 NR NR <br /> Only organic compounds detected in one or more samples are listed. <br /> [1]This analytical result appears to be anomalous and therefore was not used in the statistical evaluation procedures. <br /> *=Trace Concentration <br /> NR=Not Requested <br /> Constituents of Concern Parameters <br /> Chemical Oxygen Demand NR 55 NR NR 55.9 56.3 <br /> Total Kjeldahl Nitrogen NR 3.0 NR NR NR NR <br /> Sulfate NR 8.9 NR 6 7.26 20.1 <br /> C R NR NR NR <0.01 NR <br /> ul Zri 2 NR NR NR NR <0.1 NR <br /> Nitrate-Nitrogen NR 0.057 NR 1.3 0.3 3.22 <br /> Nitrite NR NR NR NR NR <0.3 <br /> Dissolved Oxygen NR 8.8 NR NR 8.22 11.3 <br /> Hardness,Total NR NR NR NR 58.4 116 <br /> Total Anions NR NR NR NR NR 3.5 <br /> Total Cations NR NR NR NR NR 3.9 <br /> SW-1 Hist;Printed:7/3/2012 <br /> Page 3 of 4 <br />