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® = ® ® ® ® r = ® ® M ® ® = M ■w <br />HISTORICAL SUMMARY OF MONITORING RESULTS <br />SURFACE WATER <br />NORTH COUNTY SANITARY LANDFILL <br />S-1 <br />Units: mg/I, unless noted <br />Snmple Designation <br />Sampling Date <br />S-1 <br />11/6/90 <br />S-1 <br />12/12/90 <br />S-1 <br />1/24/91 <br />S-1 <br />2/19/91 <br />S-1 <br />3/4/91 <br />S-1 <br />4/10/91 <br />S-1 <br />5/14/91 <br />S-1 <br />6/27/91 <br />S-1 <br />722/91 <br />S-1 <br />8/15/91 <br />S-1 <br />9/17/91 <br />S-1 <br />10/31/91 <br />S-1 <br />1/9/92 <br />S-1 <br />7/2/93 <br />S-1 <br />4/1/93 <br />S-1 <br />11/30/93 <br />S-1 <br />1/3/94 <br />S-1 <br />1/16/96 <br />S-1 <br />12/9/96 <br />S-1 <br />1/16/97 <br />S-1 <br />4/9/97 <br />S-1 <br />12/8/97 <br />Monitoring and Field Parameters <br />General Water Orality Parameters <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 />Temperature(°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 />NR <br />13.3 <br />13.9 <br />10.1 <br />NT <br />11.3 <br />Chloride <br />28 <br />33 <br />34 <br />79 <br />34 <br />13 <br />10 <br />14 <br />18 <br />16 <br />19 <br />22 <br />230 [2] <br />18 <br />23 <br />29 <br />54 <br />110 <br />6 <br />15.1 <br />NT <br />88 <br />Nitrate Nitrogen <br />10.1 <br />10.1 <br />1.4 <br />0.9 <br />10.1 <br />0.2 <br />10.1 <br />10.1 <br />0.1 <br /><O.I <br /><0.l <br /><0.1 <br /><0.1 <br /><0.1 <br />0.1 <br />1.2 <br /><0.1 <br />4.3 <br />0.2 <br />20.8 <br />NT <br /><0.012 <br />Total Dissolved Solids <br />300 <br />350 <br />320 <br />590 <br />320 <br />280 <br />210 <br />240 <br />300 <br />320 <br />290 <br />200 <br />1200 [2] <br />340 <br />340 <br />270 <br />410 <br />920 <br />1200 <br />355 <br />NT <br />580 <br />Sulfate <br /><8 <br /><8 <br /><8 <br /><8 <br /><8 <br /><8 <br /><8 <br />18.0 <br /><8.0 <br /><8.0 <br /><8.0 <br /><8 <br /><8 <br />5 <br /><5 <br />28 <br /><8 <br />29 <br />11 <br />28.8 <br />NT <br />35 <br />pH (std. units) <br />8.29 <br />6.85 <br />4.17 [1] <br />8.12 <br />7.38 <br />7.45 <br />6.90 <br />7.25 <br />7.27 <br />7.21 <br />7.10 <br />7.09 <br />7.01 <br />7.03 <br />7.34 <br />6.88 <br />7.12 <br />7.75 <br />6.79 <br />7.35 <br />NT <br />7.4 <br />Electrical Conductivity (umhos/cm) <br />463 <br />490 <br />568 <br />775 <br />402 <br />340 <br />343 <br />403 <br />394 <br />372 <br />355 <br />260 <br />1494 [2] <br />451 <br />366 <br />300 <br />511 <br />957 <br />1120 <br />11500 <br />NT <br />869 <br />Turbidity (NTU) <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 />129.3 <br />40.2 <br />5.3 <br />NT <br />168 <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 />NR <br />220 <br />_ 30 <br />25 <br />NT <br />365 <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 />NR <br />270 <br />NT <br />NR <br />NT <br />NR <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 />NR <br />270 <br />NT <br />NR <br />NT <br />NR <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 />NR <br /><4 <br />NT <br />NR <br />NT <br />NR <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 />NR <br /><0.004 <br />NR <br />NR <br />NT <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 />NR <br />0.06 <br />NT <br />NR <br />NT <br />NR <br />Total Organic Carbon <br />19.8 <br />25.1 <br />225 [2] <br />106 <br />64.1 <br />21.4 <br />20.4 <br />18.9 <br />23.1 <br />24.4 <br />24.0 <br />30.5 <br />149 <br />18.1 <br />51 <br />37 <br />57 <br />68 <br />NT <br />NR <br />NT <br />NR <br />Hardness, Total <br />150 <br />170 <br />170 <br />180 <br />94 <br />96 <br />190 <br />120 <br />120 <br />130 <br />110 <br />73 <br />110 <br />140 <br />120 <br />54.3 <br />132 <br />NR <br />NT <br />NR <br />NT <br />NR <br />Chemical Oxygen Demand <br />NR <br />NR <br />NR <br />NR <br />190 <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 />320 <br />NR <br />NR <br />NT <br />NR <br />Dissolved Oxygen <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 />3.45 <br />NR <br />NR <br />NT <br />3.16 <br />Metals <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.12 <br /><0.002 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <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 />Oil and Grease NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR 10.5 NR NR NR NR <br />Volatile Oreanic Compounds (ue/D <br />Toluene NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR. NR NR <br />Aluminum, Total NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR 2.5 NR NR NR NR <br />_Antimony, Total NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR 10.05 NR NR NR NR <br />Arsenic, Total NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR 0.009 NR NR NR NR <br />Barium, Total <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 />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 />0.12 <br /><0.002 <br />NR <br />NR <br />NR <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 />NR <br /><0.003 <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.007 <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 />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0023 <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 />NR <br />10.01 <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 />NR <br />0.11 <br />NR <br />NR <br />NR <br />NR <br />Iron, Total <br />2.4 <br />4.0 <br />0.54 <br />1.4 <br />1.6 <br />0.33 <br />1.3 <br />0.53 <br />0.66 <br />0.79 <br />0.36 <br />0.09 <br />4.3 <br />0.97 <br />2.1 <br />0.345 <br />1.18 <br />4.2 <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 />NR <br />0.008 <br />NR <br />NR <br />NR <br />NR <br />Manganese, Total <br />0.07 <br />0.17 <br />0.66 <br />10.05 <br />0.14 <br />0.21 <br />0.07 <br /><0.05 <br />0.07 <br />0.06 <br />0.09 <br />0.10 <br />0.10 <br />0.31 <br />0.38 <br />0.153 <br />0.436 <br />0.40 <br />NR <br />NR <br />NR <br />NR <br />Mereuny, 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 />10.005 <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 />NR <br />0.02 <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 />NR <br /><0.003 <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 />NR <br /><0.005 <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 />NR <br /><0.003 <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 />NR <br />10.1 <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 />NR <br />0.03 <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 />NR <br />0.18 <br />NR <br />NR <br />NR <br />NR <br />[ 1 ] pH meter was not functioning correctly <br />[2] These data appear to be anomalous and are not used in the statistical evaluation. <br />NR = Not Required. NT = Not Tested -dry <br />