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® M ® M ® M M ® ® ® ® r M M M M M ® w <br />HISTORICAL SUMMARY OF MONITORING RESULTS <br />SURFACE WATER <br />NORTH COUNTY SANITARY LANDFILL <br />S-2 <br />Sample Designation S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 <br />Sampling Date 11/6/90 12/12/90 1/24/91 2/19/91 3/4/91 4/10/91 5/14/91 6/27/91 7/22/91 8/15/91 9/17/91 10/31/91 1/9/92 4/1/93 11/30/93 1/3/94 1/16/96 12/9/96 1/16/97 4/9/97 12/8/97 1/28/98 <br />Monitoring and Field Parameters <br />Tem erp alure (°C) <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 />NR <br />NR <br />NR <br />NR <br />12.4 <br />13.5 <br />12.6 <br />NT <br />14.1 <br />15.3 <br />Chloride <br />29 <br />35 <br />31 <br />44 <br />15 <br />14 <br />13 <br />13 <br />15 <br />18 <br />18 <br />21 <br />34 <br />11 <br />16 <br />32 <br />2 <br />2 <br />17.8 <br />NT <br />4 <br />29 <br />Nitrate Nitrogen <br /><01 <br /><0I <br />x0.1 <br />0.7 <br />0.4 <br />0.2 <br />QI <br /><0.1 <br />x0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br />0.5 <br /><0.1 <br />1.3 <br />0.06 <br />20.4 <br />NT <br />1.2 <br />8.5 <br />Total Dissolved Solids <br />290 <br />260 <br />290 <br />450 <br />200 <br />320 <br />180 <br />210 <br />320 <br />340 <br />280 <br />190 <br />280 <br />250 <br />180 <br />280 <br />140 <br />320 <br />365 <br />NT <br />98 <br />417 <br />Sulfate <br /><8 <br /><8 <br /><8 <br />9.1 <br /><8 <br /><8 <br /><8 <br /><8.0 <br /><8.0 <br /><8.0 <br /><8.0 <br /><8 <br /><8 <br />11 <br /><8 <br /><8 <br /><0.7 <br />ND <br />30.7 <br />NT <br />4.1 <br />54 <br />pli (std, units) <br />7.36 <br />8.08 <br />3.43 [Il <br />8.24 <br />7.63 <br />7.58 <br />6.80 <br />6.62 <br />6.90 <br />7.06 <br />7.15 <br />6.96 <br />7.10 <br />7.74 <br />7.04 <br />7.13 <br />7.62 <br />7.79 <br />7.75 <br />NT <br />8.53 <br />8.3 <br />Electrical Condnctivity(umi)os/cm) <br />420 <br />430 <br />540 <br />483 <br />276 <br />334 <br />316 <br />362 <br />379 <br />354 <br />375 <br />296 <br />358 <br />340 <br />200 <br />428 <br />57 <br />32 <br />11320 <br />NT <br />82 <br />571 <br />Turbidity ( Tu) <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 />NR <br />NR <br />NR <br />NR <br />200 <br />200 <br />8.25 <br />NT <br />30.8 <br />4.4 <br />Total Suspended Solids <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 />NR <br />NR <br />NR <br />NR <br />160 <br />170 <br />5.7 <br />NT <br />69 <br /><1.4 <br />Alkalinity as CaCO3, Total <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 />NR <br />NR <br />NR <br />NR <br />20 <br />NT <br />NR <br />NT <br />NR <br />164 <br />Alkalinity Bicarbonate <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 />NR <br />NR <br />NR <br />NR <br />20 <br />NT <br />NR <br />NT <br />NR <br />114 <br />Alkalinity, Carbonate <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 />NR <br />NR <br />NR <br />NR <br /><4 <br />NT <br />NR <br />NT <br />NR <br />50 <br />Alkalinity, Hydroxide <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cyanide <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 />NR <br />NR <br />NR <br />NR <br /><0.004 <br />NR <br />NR <br />NT <br />NR <br />NR <br />Sulfide <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 />NR <br />NR <br />NR <br />NR <br /><0.03 <br />NT <br />NR <br />NT <br />NR <br />NR <br />Total Organic Carbon <br />22.5 <br />36.3 <br />21.5 <br />79 <br />32.9 <br />38.1 <br />17.9 <br />21.0 <br />59.0 <br />29.4 <br />21.7 <br />33.4 <br />31.2 <br />64 <br />28 <br />28 <br />4 <br />NT <br />NR <br />NT <br />NR <br />NR <br />Hardness, Total <br />140 <br />130 <br />150 <br />160 <br />97 <br />99 <br />120 <br />120 <br />120 <br />120 <br />120 <br />76 <br />86 <br />140 <br />42.5 <br />126 <br />NR <br />NT <br />NR <br />NT <br />NR <br />NR <br />Chemical Oxygen Demand <br />NR <br />NR <br />NR <br />NR <br />88 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />17 <br />NT <br />NR <br />NT <br />NR <br />NR <br />Dissolved Oxveen <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 />NR <br />NR <br />NR <br />NR <br />8.30 <br />NT <br />NR <br />NT <br />8.96 <br />NR <br />Calcium, Total <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Magnesium, Total <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 />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 />NR <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 />NR <br />NR <br />Sodium, Total <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Constituents of Concern Parameters <br />Oil and Grease <br />NR <br />NR <br />NR <br />NR <br />_ <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 />0.6 <br />NR <br />NR <br />NR <br />NR <br />NR <br />Aluminum, Total <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 />NR <br />NR <br />NR <br />NR <br />10 <br />NR <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />x0.05 <br />NR <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />x0.002 <br />NR <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.13 <br />NR <br />NR <br />NR <br />NR <br />NR <br />Beryllium, Total <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 />NR <br />NR <br />NR <br />NR <br /><0.002 <br />NR <br />NR <br />NR <br />NR <br />NR <br />Boron, Total <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cadmium, Total <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 />NR <br />NR <br />NR <br />NR <br /><0.003 <br />NR <br />NR <br />NR <br />NR <br />NR <br />Total Dissolved <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 />NR <br />NR <br />NR <br />NR <br />0.01 <br />NR <br />NR <br />NR <br />NR <br />NR <br />_C_hromium, <br />Chromium Hexavalent <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 />NR <br />NR <br />NR <br />NR <br />x0.0023 <br />NR <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 />NR <br />NR <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 />Copper, Total <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 />NR <br />NR <br />NR <br />NR <br />0.11 <br />NR <br />NR <br />NR <br />NR <br />NR <br />Iron, Total <br />1.1 <br />1.3 <br />1.5 <br />0.7 <br />0.7 <br />5.4 <br />1.9 <br />0.81 <br />1.4 <br />14 <br />0.48 <br />0.23 <br />0.19 <br />0.91 <br />1.07 <br />0.378 <br />13 <br />NR <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.013 <br />NR <br />NR <br />NR <br />NR <br />NR <br />Total <br /><0.05 <br />0.08 <br />0.12 <br /><0.05 <br /><0.05 <br />0.24 <br />0.14 <br />0.15 <br />0.30 <br />0.19 <br />0.10 <br />0.08 <br />0.24 <br />0.38 <br />0.033 <br />0.404 <br />0.25 <br />NR <br />NR <br />NR <br />NR <br />NR <br />_Manganese, <br />Mercury, Total <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 />NR <br />NR <br />NR <br />NR <br />10.0005 <br />NR <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 />NR <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 />NR <br />NR <br />Nickel, Total <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 />NR <br />NR <br />NR <br />NR <br /><0.02 <br />NR <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.003 <br />NR <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.005 <br />NR <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 />NR <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 />NR <br />NR <br />Thallium, Total <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 />NR <br />NR <br />NR <br />NR <br /><0.003 <br />NR <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.I <br />NR <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.04 <br />NR <br />NR <br />NR <br />NR <br />NR <br />zinc. Total <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 />NR <br />NR <br />NR <br />NR <br />0.13 <br />NR <br />NR <br />NR <br />NR <br />NR <br />[ I l pH meter was not functioning correctly <br />[2l These data appear to be anomalous and are not used in the statistical evaluation. <br />NR = Not Reouired. NT = Not Tested -dry __ <br />