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m ® m m ® m m ® ® m ® ® ® m ® m <br />HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br />GROUNDWATER <br />NORTH COUNTY SANITARY LANDFILL <br />G-2 & G-3 <br />Sample Type: Water <br />Units m,V unless noted <br />Sample Designation G-2 G-2 G-2 G-2' G-2 0-2 G-2 G-2 G-2 G-2 G-2 G-2 G-2 G-2 G-2 G-2 G-2 G-2 G-2 G-2 G-2 <br />Sampling Date 8/12/87 10/31/89 11/15/90 1/25/91 4/10/91 7/22/91 10/31/91 1/9/92 4/2/92 7/2/92 10/1/92 1/4/93 820/93 10/5/93 1/4/94 4/8/94 7/1/94 4/3/95 7/7/95 10/2/95 1/2/96 <br />Monitorine and Field Parameters <br />Metals <br />Dissolved <br /><0.5 <br />0.14 <br /><0.05 <br />NR <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br />NR <br />0.077 <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />_Aluminum, <br />Antimony, Dissolved <br /><0.5 <br /><0.05 <br /><0.05 <br />NR <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Arsenic, Dissolved <br /><0.005 <br /><0.005 <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Barium, Dissolved <br />0.02 <br />0.041 <br />0.045 <br />NR <br />NR <br />NR <br />0.045 <br />NR <br />NR <br />NR <br />0.046 <br />NR <br />NR <br />0.045 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Beryllium, Dissolved <br /><0.01 <br /><0.005 <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Boron, Dissolved <br />0.03 <br /><0.05 <br /><0.05 <br />NR <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cadmium, Dissolved <br /><0.05 <br /><0.002 <br /><0.003 <br />NR <br />NR <br />NR <br /><0.003 <br />NR <br />NR <br />NR <br /><0.003 <br />NR <br />NR <br /><0.003 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Chromium, Total Dissolved <br /><0.05 <br />0.007 <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Chromium Hexavalent <br />NR <br />NR <br />0.24 <br />NR <br />NR <br />NR <br /><0.01 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br /><0.0I0 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cobalt, Dissolved <br /><0.05 <br /><0.01 <br /><0.01 <br />NR <br />NR <br />NR <br /><0.01 <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 />Copper, Dissolved <br /><0.05 <br /><0.01 <br /><0.01 <br />NR <br />NR <br />NR <br /><0.01 <br />NR <br />NR <br />NR <br /><0.01 <br />NR <br />NR <br /><0.01 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Iron, Dissolved <br />0.12 <br />0.08 <br /><0.02 <br />0.31 <br />0.16 <br /><0.05 <br /><0.02 <br /><0.05 <br /><0.05 <br /><0.05 <br /><0.02 <br /><0.05 <br /><0.05 <br /><0.02 <br />0.123 <br /><0.02 <br />0.02 <br />NR <br />NR <br />NR <br />NR <br />Lead, Dissolved <br /><0.2 <br /><0.002 <br /><0.002 <br />NR <br />NR <br />NR <br /><0.002 <br />NR <br />NR <br />NR <br /><0.002 <br />NR <br />NR <br /><0.002 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Manganese, Dissolved <br /><0.05 <br /><0.005 <br />0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Mercury, Dissolved <br /><0.0005 <br /><0.0005 <br /><0.0005 <br />NR <br />NR <br />NR <br /><0.0005 <br />NR <br />NR <br />NR <br /><0.0005 <br />NR <br />NR <br /><0.0005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Nickel, Dissolved <br /><0.05 <br /><0.02 <br /><0.02 <br />NR <br />NR <br />NR <br /><0.02 <br />NR <br />NR <br />NR <br /><0.02 <br />NR <br />NR <br /><0.02 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Selenium. Dissolved <br /><0.005 <br /><0.005 <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Silver, Dissolved <br /><0.01 <0.01 <br /><0.01 <br />NR <br />NR <br />NR <br /><0.01 <br />NR <br />NR <br />NR <br /><0.0I <br />NR <br />NR <br /><0.01 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Thallium, Dissolved <br /><0.5 <0.005 <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Tin, Dissolved <br /><0.1 <0.05 <br /><0.05 <br />NR <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br />NR <br /><0.05 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Vanadium, Dissolved <br /><0.1 0.02 <br />0.02 <br />NR <br />NR <br />NR <br />0.019 <br />NR <br />NR <br />NR <br />0.018 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Zinc, Dissolved <br />1.1 <0.01 <br />0.01 <br />NR <br />NR <br />NR <br /><0.01 <br />NR <br />NR <br />NR <br />0.014 <br />NR <br />NR <br /><0.01 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR = Not Required <br />" = Trace Concentration <br />[I] This data point appears anomalous and therefore <br />was not used for statistical <br />purposes statistical <br />analysis <br />