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HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br />GROUNDWATER <br />NORTH COUNTY SANITARY LANDFILL <br />Units: meA unless noted <br />Sample Designation G-1 0-1 G-1 G-1 0-1 G-1 G-1 G-1 G-1 G-1 G-1 G-1 G-1 G -I G-1 G-1 G-1 G-1 G-1 G-1 <br />Sampling Date 07/01/93 10/05/93 11/03/94 04/04194 0710194 12101N4 01/03/95 04/03/95 07/07/95 10/02/95 01/02/96 04/05/96 07/11/96 10/03/96 01/16/97 04/09/97 07/10/97 10/01/97 0128/98 04/16/98 <br />Monitoring and Field Parameters <br />pH (std nits) (field) <br />Electrical Conductivity (u.h./c.) (field) <br />7.21 <br />219 <br />6.49 <br />206 <br />6.95 <br />192 <br />6.97 <br />273 <br />7.25 <br />255 <br />7.08 <br />241 <br />7.34 <br />218 <br />6.72 <br />203 <br />7.30 <br />227 <br />7.13 <br />214 <br />7.21 <br />211 <br />6.84 <br />215 <br />b.vu <br />211 <br />o. n <br />212 <br />5- <br />60 <br />a- <br />410 <br />r., r <br />140 <br />o.r r <br />190 <br />a.- <br />205 <br />180 <br />Temperature (°C) (field) <br />NR <br />NR <br />NR <br />NR <br />NR <br />19.8 <br />19.7 <br />22.1 <br />23.8 <br />22.8 <br />19.9 <br />21.8 <br />23.0 <br />22.5 <br />19.2 <br />22.0 <br />23.6 <br />21.5 <br />20.5 <br />21.4 <br />Oxygen Reduction Potential (ORP) (field) <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Diasol ed Oxygen (D O) (field) <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Turbidity TED field <br />NR <br />NR <br />NR <br />NR <br />NR <br />0.8 <br />0.8 <br />0.1 <br />0.2 <br />4 <br />0.20 <br /><I <br />5.1 <br />2.7 <br />0.3 <br />5.1 <br />1.5 <br />2.3 <br />I.0 <br />2.5 <br />Chloride <br />8 <br />8 <br />14 <br />8 <br />7 <br />9.4 <br />8.0 <br />7 <br />8 <br />9 <br />9 <br />8 <br />8 <br />8 <br />7.1 <br />7.5 <br />10.6 <br />9.1 <br />10 <br />9.6 <br />Total Hardness (calculated) <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />_ NR <br />NR <br />NR <br />Total Dissolved Solids <br />170 <br />190 <br />200 <br />200 <br />190 <br />178 <br />176 <br />210 <br />200 <br />210 <br />190 <br />210 <br />220 <br />I80 <br />195 <br />191 <br />178 <br />146 <br />159 <br />134 <br />Chemical Oxygen Demand <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Nitrate Nitrogen <br />1.5 <br />1.3 <br />1.3 <br />1.9 <br />1.3 <br />1.4 <br />1.4 <br />1.4 <br />1.4 <br />1.2 <br />1.3 <br />1.3 <br />1.2 <br />1.4 <br />1.3 <br />1.4 <br />1.3 <br />1.1 <br />1.6 <br />1.3 <br />Sulfate <br /><S <br /><3 <br /><8 <br /><8 <br /><8 <br />3.6 <br />3.5 <br />trace <br />3 <br />5 <br />13 <br />trace <br />4 <br />4 <br />3 <br />3 <br />4 <br />3 <br />5 <br />4 <br />Mdab <br />Calcium <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Magnesium <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Pomssimmm <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Sodium <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />Volatile Organic Compounds tna/I1 <br />Benzene <br />NR <br /><1 <br />NR <br />NR <br />NR <br /><0.36 <br /><0.36 <br /><0.36 <br />5" <br /><0.5 <br />1" <br />0.6" <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.08 <br /><0.5 <br /><I.0 <br /><I.0 <br />5.6 <br />Bronmobenune <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.1 <br /><0.I <br /><0.I <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.I <br /><0.1 <br /><0.1 <br /><0.74 <br /><0.74 <br /><0.74 <br />Bromochloromethane <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.2 <br /><0.2 <br /><01 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.1 <br /><0.1 <br /><0.1 <br /><1.2 <br /><1.2 <br /><1.2 <br />BromodichloromeWena <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.90 <br /><0.90 <br /><0.90 <br />Bromofonr <br />NT <br />NT <br />NT <br />NT <br />NT <br /><01 <br /><01 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><01 <br /><0.2 <br /><1.4 <br /><1.4 <br /><1.5 <br />Bromomelhana <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.4 <br /><0.4 <br /><0.4 <br /><LI <br /><I.1 <br /><LI <br />n -but Ibanune <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.3 <br /><0.3 <br /><0,3 <br />0.4" <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.2 <br /><0.2 <br /><0.2 <br /><1.6 <br /><1.6 <br /><1.6 <br />sec-butyibenzene <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.3 <br /><03 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><1.5 <br /><1.5 <br /><1.5 <br />tert-butylbennne <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><13 <br />4.3 <br /><1.3 <br />Carbon tetrachloride <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.3 <br /><I.3 <br /><1.3 <br />Chlorobenzene <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.1 <br /><0.1 <br /><0,I <br /><0.1 <br /><0.1 <br /><0.I <br />NT <br />NT <br />NT <br /><0.90 <br /><0.90 <br /><0.90 <br />Chloroethane <br />NR <br /><10 <br />NR <br />NR <br />NR <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.3 <br /><0.3 <br /><0.3 <br />NR <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.25 <br /><0.3 <br /><1.2 <br /><1.2 <br /><1.2 <br />Chloroform <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><01 <br /><0.2 <br /><0.83 <br /><013 <br /><0.84 <br />Chloromethane <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.53 <br /><0.53 <br /><0.53 <br />2-chlorotoluene <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0,2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.71 <br /><0.71 <br /><071 <br />4-61crotolume <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><I.1 <br /><I.1 <br /><Ll <br />dibromochimurn.thene <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.1 <br /><0.1 <br /><0.I <br /><0.I <br /><0.1 <br /><0.1 <br />NT <br />NT <br />NT <br /><0.97 <br /><0.97 <br /><0.97 <br />1,2-dibromo-3-chloro sne <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><1.2 <br /><1.2 <br /><1.2 <br />1,2-dibromcelhane <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.94 <br /><0.94 <br /><0.94 <br />Dibromomethane <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><1.5 <br /><1.5 <br /><1.5 <br />1,2 -dichlorobenzene <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.I <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.95 <br /><0.95 <br /><0.96 <br />1,3-Dichlorobenune <br />NR <br /><I <br />NR <br />NR <br />NR <br /><0.49 <br /><0.49 <br /><0.49 <br /><0.1 <br /><0.1 <br /><0.1 <br />NR <br /><0.1 <br /><0.1 <br /><0.10 <br /><0.1 <br /><I.I <br /><l.l <br /><I.1 <br />14 -Dichlorobenzene <br />NR <br /><I <br />NR <br />NR <br />NR <br /><0.43 <br /><0.43 <br /><0.43 <br /><0.1 <br /><0.I <br /><0.1 <br />NR <br /><0.1 <br /><0.I <br /><0.11 <br /><0.1 <br /><0.89 <br /><0.89 <br /><0.90 <br />DichImodifluenomethane <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.3 <br /><0.19 <br /><0.19 <br /><0. 19 <br />1,1-Dichloroethans <br />NR <br /><t <br />NR <br />NR <br />NR <br /><0.28 <br /><0.28 <br /><0.28 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.08 <br /><0.2 <br /><1.2 <br /><1.2 <br /><1.2 <br />1, 2-Dichloroelhane <br />NR <br /><I <br />NR <br />NR <br />NR <br /><0.46 <br /><0.46 <br /><0.46 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.12 <br /><0.5 <br /><I.1 <br /><1.1 <br /><I.1 <br />1,1-dichlomethene <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.72 <br /><0.72 <br /><0.73 <br />cis-1,2-Dichlorcethene <br />NR <br /><5 <br />NR <br />NR <br />NR <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.I <br /><0.1 <br /><0.1 <br /><0.09 <br /><0.1 <br /><0.82 <br /><0.82 <br /><0.82 <br />trans-1,2-dichloroethene <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><01 <br /><0.2 <br /><0.94 <br /><0.94 <br /><0.95 <br />1,2-diehlo,ppoppma, <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.15 <br /><0.15 <br /><0.15 <br />1,21-dichloropropma, <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><1.1 <br /><1.1 <br /><1.1 <br />2,2-dichloro ro mme <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br />NT <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><0.4 <br /><1.0 <br /><I.0 <br /><1.0 <br />NR = Not Required <br />NT - Not Tested <br />* - Trace Concentration <br />(11 This data point appears anomalous and therefore was net used for statistical purposes. <br />f 1) Parameter also detected in one or more quality control blanks <br />-- <br />