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HISTORICAL SUMMARY OF MONITORING RESULTS <br />SURFACE WATER <br />NORTH COUNTY SANITARY LANDFILL <br />Units: m unless noted <br />Sample Designation S-3 S-3 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 <br />Sampling Dale 4/10/91 1/9192 4/10/91 119192 7/22/91 4/1/93 11/30/93 12/96 1/16/96 1219/96 1/16/97 419197 12/8/97 128/98 1/21199 1/25/00 3/5/01 1/2/02 12/17/02 2/18/04 <br />Monitorian and Field Parameters <br />General Water Oualih Parameters <br />Temperature °C <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />14.8 <br />12.4 <br />13.9 <br />4.6 <br />NT <br />11.3 <br />15.5 <br />16.3 <br />19 <br />15.4 <br />13.7 <br />13.0 <br />17.2 <br />Chloride <br />G.9 <br />5 <br />12 <br />3 <br />22 <br />2 <br />28 <br />37 <br />23 <br />21 <br />3.2 <br />NT <br />23 <br />16 <br />11 <br />2.36 <br />60.1 <br />47 <br />59 <br />55 <br />Nitrate Nitrogen <br />10.1 <br /><0.1 <br />0.1 <br />0.3 <br />10.1 <br />10.1 <br />0.8 <br /><0.03 <br />0.2 <br />0.03 <br />1 <br />NT <br />1.6 <br />0.21 <br />10.0049 <br />0.447 <br />0.122 <br />0.058 <br />0.088 <br />0.090 <br />Total Dissolved Solids <br />230 <br />140 <br />240 <br />190 <br />370 <br />130 <br />480 <br />360 <br />240 <br />240 <br />125 <br />NT <br />203 <br />238 <br />195 <br />52 <br />389 <br />340 <br />380 <br />320 <br />Sulfate <br /><8 <br /><8 <br /><8 <br /><8 <br /><8.0 <br /><5 <br />10 <br />Is <br />6 <br />10 <br />6.8 <br />NT <br />16 <br />12 <br />2.1 <br />3.41 <br />30.4 <br />16 <br />32 <br />10 <br />H std. units <br />8.32 <br />5.14 <br />7.47 <br />7.59 <br />7.11 <br />7.63 <br />7.88 <br />7.75 <br />7.22 <br />7.84 <br />7.34 <br />NT <br />7.81 <br />7.95 <br />7.4 <br />9.26 <br />7.83 <br />7.53 <br />6.91 <br />7.83 <br />Electrical Conductivity umbos/cm) <br />169 <br />895 <br />287 <br />112 <br />351 <br />133.6 <br />380 <br />485 <br />309 <br />313 <br />30 <br />NT <br />298 <br />322 <br />179 <br />333 <br />534 <br />450 <br />307 <br />431 <br />Turbidity <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />74 <br />43.5 <br />11.9 <br />6.41 <br />NT <br />50.3 <br />2 <br />66.7 <br />60.1 <br />>200 <br />123 <br />148.6 <br />>200 <br />Total Suspended Solids <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />19 <br />50 <br />14 <br />8 <br />NT <br />73 <br />4 <br />13 <br />12 <br />9 <br />10 <br />140 <br />12 <br />Alkalinity as CaCO3, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />170 <br />110 <br />NT <br />NR <br />NT <br />NR <br />125 <br />34 <br />15.4 <br />116 <br />110 <br />110 <br />110 <br />Alkalinity, Bicarbonate <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />170 <br />110 <br />NT <br />NR <br />NT <br />NR <br />125 <br />NR <br />15.4 <br />116 <br />110 <br />110 <br />110 <br />Alkalinity, Carbonate <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />14 <br /><4 <br />NT <br />NR <br />NT <br />NR <br /><,55 <br />NR <br /><0.808 <br />10.808 <br /><I.0 <br /><0.54 <br /><5.0 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />10.004 <br />10.004 <br />NT <br />NR <br />NT <br />NR <br />NR <br />NR <br />0.00434 <br />NR <br />NR <br />NR <br />NR <br />Cyanide <br />Sulfide <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />10.6 <br /><0.03 <br />NT <br />NR <br />NT <br />NR <br />NR <br />NR <br />1.23 <br />NR <br />NR <br />NR <br />NR <br />Total Organic Carbon <br />31.6 <br />20.7 <br />33.2 <br />17.4 <br />41.1 <br />38 <br />88 <br /><0.5 <br />25 <br />NT <br />NR <br />NT <br />NR <br />NR <br />NR <br />15 <br />NR <br />NR <br />NR <br />NR <br />Hardness, Total <br />34 <br />27 <br />96 <br />36 <br />150 <br />58 <br />108 <br />NR <br />NR <br />NT <br />NR <br />NT <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Chemical Ox en Demand <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />94 <br />66 <br />NT <br />NR <br />NT <br />NR <br />NR <br />NR <br />48.1 <br />NR <br />NR <br />NR <br />NR <br />Dissolved Oxygen <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />8.45 <br />9.55 <br />NT <br />NR <br />NT <br />11.02 <br />NR <br />NR <br />1.86 <br />NR <br />NR <br />1.91 <br />NR <br />Metals <br />Calcium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />22 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Ma ossium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />12 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Potassium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />38 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Sodium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />21 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />nts; of Couggril <br />Oil and Grease <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.6 <br />0.6 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />1.04 <br />NR <br />NR <br />NR <br />NR <br />MetaAluminum, <br />Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />2.1 <br />2.6 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.264 <br />NR <br />NR <br />NR <br />NR <br />Antimony, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.05 <br /><0.05 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />10.0069 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />10.002 <br />0.003 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />10.0096 <br />NR <br />NR <br />NR <br />NR <br />Arsenic, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.11 <br />0.11 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />-0.0014 <br />NR <br />NR <br />NR <br />NR <br />Barium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.002 <br /><0.002 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0006 <br />NR <br />NR <br />NR <br />NR <br />B Ilimn,Total <br />Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.011 <br />NR <br />NR <br />NR <br />NR <br />Boron, <br />Cadmium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.003 <br /><0.003 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0018 <br />NR <br />NR <br />NR <br />NR <br />Chromium, Total Dissolved <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.01 <br /><0.005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />10.0028 <br />NR <br />NR <br />NR <br />NR <br />Chromium Hexavalent <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0023 <br />10.0023 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0018 <br />NR <br />NR <br />NR <br />NR <br />Cobalt, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.01 <br /><0.01 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0014 <br />NR <br />NR <br />NR <br />NR <br />Copper, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.01 <br />0.04 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0021 <br />NR <br />NR <br />NR <br />NR <br />Iron, Total <br />0.24 <br /><0.05 <br />2.1 <br /><0.05 <br />4.6 <br />0.31 <br />0.247 <br />3.2 <br />4.2 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.793 <br />NR <br />NR <br />NR <br />NR <br />Lead, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.001 <br />0.004 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0099 <br />NR <br />NR <br />NR <br />NR <br />Manganese, Total <br /><0.05 <br /><0.05 <br />0.32 <br />0.08 <br />0.44 <br />0.51 <br />0.369 <br />0.49 <br />0.13 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.0206 <br />NR <br />NR <br />NR <br />NR <br />Mercury, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0005 <br /><0.0005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />ND <br />NR <br />NR <br />NR <br />NR <br />Molybdenum, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.01 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Nickel, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.02 <br /><0.02 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0053 <br />NR <br />NR <br />NR <br />NR <br />Selenium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.003 <br /><0.003 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.018 <br />NR <br />NR <br />NR <br />NR <br />Silver, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.005 <br /><0.005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0013 <br />NR <br />NR <br />NR <br />NR <br />Strontium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.26 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Thallium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.003 <br /><0.003 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />10.012 <br />NR <br />NR <br />NR <br />NR <br />Tin, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.1 <br /><0.1 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.1264 <br />NR <br />NR <br />NR <br />NR <br />Vanadium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.01 <br />0.01 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0024 <br />NR <br />NR <br />NR <br />NR <br />Zinc, Total <br />NR <br />NR <br />I NR <br />NR <br />NR <br />NR <br />NR <br />0.01 <br />0.05 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.0191 <br />NR <br />NR <br />NR <br />NR <br />[ I) pH meter was not functioning correctly <br />[2) These data appear to be anomalous and <br />are not used in <br />the statistical evaluation. <br />NR = Not Re uir NT ® Not Tested -ft <br />