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HISTORICAL ANALYTICAL RESULTS <br />SURFACE WATER <br />CORRAL HOLLOW SANITARY LANDFILL <br />SW -1 <br />Units: mg/I, unless noted <br />Sample Designation <br />Sampling Date <br />SW -1 <br />03/06/92 <br />SW -1 <br />03/03/93 <br />SW -1 <br />06/02/93 <br />SW -1 <br />12/03/93 <br />SW -1 <br />01/10/95 <br />SW -1 <br />12/12/95 <br />SW -1 <br />12/06/96 <br />SW -1 <br />03/19/97 <br />SW -1 <br />06/06/97 <br />SW -1 <br />12/01/97 <br />SW -1 <br />02/02/98 <br />SW -1 <br />04/15/98 <br />SW -1 <br />07/16/98 <br />SW -1 <br />10/30/98 <br />SW -1 <br />01/19/99 <br />Monitoring and Field Parameters <br />General Water Quality arameters <br />Temperature, Field (°C) <br />NR <br />NR <br />NR <br />NR <br />14.7 <br />16.4 <br />14.2 <br />23.5 <br />24.0 <br />13.1 <br />14.2 <br />20.2 <br />32.3 <br />18 <br />18.8 <br />Electrical Conductivity (umhos/cm) <br />2,120 <br />769 <br />1,572 <br />1,347 <br />435 <br />1,750 <br />1,764 <br />10 <br />1.27 <br />1880.00 <br />1123.00 <br />1,350 <br />1,752 <br />1,830 <br />1,828 <br />pH, field (units) <br />8.29 <br />8.58 <br />8.28 <br />8.29 <br />8.08 <br />8.38 <br />8.31 <br />7.57 <br />7.28 <br />8.21 <br />8.49 <br />8.5 <br />8.94 <br />8.67 <br />8.53 <br />Turbitity, Field (NTU) <br />NR <br />NR <br />NR <br />NR <br />>200 <br />3.0 <br />1.0 <br />1.4 <br />1.9 <br />0.8 <br />36.6 <br />11.5 <br />2.0 <br />1.1 <br />NR <br />Total Dissolved Solids <br />1,900 <br />640 <br />1,200 <br />1,500 <br />290 <br />1,500 <br />1,200 <br />920 <br />1,400 <br />1,400 <br />727 <br />657 <br />2,000 <br />1,170 <br />1,123 <br />Total Suspended Solids <br />NR <br />NR <br />NR <br />NR <br />1,200 <br />290 <br /><2 <br />2 <br />ISV <br /><1.4 <br />62 <br />NR <br />ND <br />29 <br />3 <br />Chloride <br />250 <br />61 <br />150 <br />210 <br />19 <br />200 <br />160 <br />110 <br />150 <br />205 <br />88 <br />105 <br />184 <br />223 <br />2 <br />Sulfate <br />NR <br />NR <br />NR <br />NR <br />67 <br />500 <br />390 <br />318 <br />400 <br />476 <br />242 <br />319 <br />435 <br />458 <br />4.9 <br />Nitrate -Nitrite as Nitrogen <br /><0.1 <br />2.2 <br /><0.1 <br /><0.1 <br />1.9 <br /><0.03 <br />trace <br /><0.03 <br />ND <br /><0.12 <br />0.3 <br />0.90 <br />ND <br /><0.0049 <br /><0.0049 <br />Calcium <br />Potassium <br />Magnesium <br />Sodium <br />Volatile Organic Compounds (ug/1) <br />Acetone <br />All Other Compounds <br />Constituents of Concern Parameters <br />Alkalinity, Bicarbonate <br />NR <br />NR <br />NR <br />NR <br />72 <br />340 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Alkalinity, Carbonate <br />NR <br />NR <br />NR <br />NR <br /><0.9 <br /><4 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Total Alkalinity <br />NR <br />NR <br />NR <br />NR <br />72 <br />340 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cyanide, Total <br />NR <br />NR <br />NR <br />NR <br /><0.003 <br /><0.02 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Sulfide <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br />trace <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Total Organic Carbon <br />5.4 <br />4.4 <br />3.4 <br />4.1 <br />36.8 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Chemical Oxygen Demand <br />NR <br />NR <br />NR <br />NR <br />122 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Dissolved Oxygen <br />NR <br />NR <br />NR <br />NR <br />9.9 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Oil and Grease <br />NR <br />NR <br />NR <br />NR <br />0.9 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Organic compounds detected in one or more samples are listed. <br />NR = Not Requested <br />ND = Not Detected <br />ISV = Insufcient Volume <br />® ® ® M ® M M M ® M = M = M ® = M ® M <br />