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HISTORICAL SUMMARY OF MONITORING RESULTSSURFACE WATERNORTH COUNTY SANITARY LANDFILLS-1Units: mg/l, unless notedSample DesignationSampling DateMonitoring and Field ParametersGeneral Water Quality ParametersTemperature (°C)ChlorideNitrate NitrogenTotal Dissolved SolidsSulfatepH (std. units)Electrical Conductivity (umhos/cm)Turbidity (NTU)Total Suspended Solids Alkalinity as CaCO3, TotalAlkalinity, BicarbonateAlkalinity, CarbonateAlkalinity, HydroxideCyanideSulfideTotal Organic CarbonHardness, TotalChemical Oxygen DemandDissolved OxygenMetals Calcium, TotalMagnesium, TotalPotassium, TotalSodium, TotalConstituents of Concern ParametersOil and GreaseVolatile Organic Compounds (ug/l)TolueneActoneChloromethaneAll Other CompoundsMetals Aluminum, TotalAntimony, TotalArsenic, TotalBarium, TotalBeryllium, TotalBoron, TotalCadmium, TotalChromium, Total DissolvedChromium HexavalentCobalt, TotalCopper, TotalIron, TotalS-1S-1S-1S-1S-1S-1S-1S-1S-1S-1S-11/21/19 7/30/19 1/28/20 7/20/20 1/12/21 7/6/21 1/10/22 8/29/22 1/17/23 7/17/23 1/23/24Dry8.2NTNTNTNTNTNTNT9.8NTNT25 NT NT NT NT NT NT NT 9.2 NT NT2.4NTNTNTNTNTNTNT6.1NTNT370 NT NT NT NT NT NT NT 270 NT NT87 NT NT NT NT NT NT NT 40 NT NT7.83 NT NT NT NT NT NT NT 7.87 NT NT491.9 NT NT NT NT NT NT NT 339.2 NT NT33.7NTNTNTNTNTNTNT90NTNTNT NT NT NT NT NT NT NT NR NT NT99 NT NT NT NT NT NT NT 83 NT NT120 NT NT NT NT NT NT NT 100 NT NT<2.5 NT NT NT NT NT NT NT <2.5 NT NTNT NT NT NT NT NT NT NT NR NT NT0.0031*NT NT NT NT NT NT NT NR NT NT<0.050 NT NT NT NT NT NT NT NR NT NTNT NT NT NT NT NT NT NT NR NT NT180 NT NT NT NT NT NT NT 120 NT NT71 NT NT NT NT NT NT NT 37 NT NT10.87 NT NT NT NT NT NT NT 4.79 NT NT43 NT NT NT NT NT NT NT 31 NT NT17 NT NT NT NT NT NT NT 12 NT NT29 NT NT NT NT NT NT NT 17 NT NT17 NT NT NT NT NT NT NT 13 NT NTND NT NT NT NT NT NT NT NR NT NT<0.093 NT NT NT NT NT NT NT <0.093 NT NT<4.6 NT NT NT NT NT NT NT <4.6 NT NT<0.14NTNTNTNTNTNTNT<0.14NTNTND NT NT NT NT NT NT NT ND NT NT6500 NT NT NT NT NT NT NT NR NT NT9.2NTNTNTNTNTNTNTNRNTNT3.2NTNTNTNTNTNTNTNRNTNT110 NT NT NT NT NT NT NT NR NT NT<0.50NTNTNTNTNTNTNTNRNTNT120 NT NT NT NT NT NT NT NR NT NT0.17 NT NT NT NT NT NT NT NR NT NT5.8NTNTNTNTNTNTNTNRNTNT0.055 NT NT NT NT NT NT NT NR NT NT3.2NTNTNTNTNTNTNTNRNTNT9.7NTNTNTNTNTNTNTNRNTNT5300 NT NT NT NT NT NT NT NR NT NT65 of 146