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m m m m m m m m m®® m m r m®® m m <br />HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br />LEACHATE <br />NORTH COUNTY SANITARY LANDFILL <br />L-3 <br />Units mg/1 nless noted <br />Sample Designation L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 L-3 <br />Sampling Date 1/16/97 4/9/97 7/10/97 10/1/97 1/28/98 4/16/98 7/10/98 10/5/98 1/5/99 4/26/99 7/20/99 10/19/99 3/2/00 4/26/00 8/16/00 10/5/00 3/5/01 4/12/01 7/31/0) 10/10/01 1/23/02 4/17/02 7/16/02 10/1/02 <br />Monitoring and Field Parameters <br />nH rstd. ts) 6.05 7.38 7.16 6.32 6.05 6.33 6.74 6.92 6.68 6.47 6.33 6.8 6.47 6.69 6.28 6.55 6.64 7.29 6.34 6.28 6.81 7.13 7.42 6.71 <br />80 <br />1 1964 <br />720 390 3080 4010 1490 1610 <br />Tem_pemmre (°C) <br />19.7 <br />21 <br />20 <br />28.2 <br />17.4 <br />23.6 <br />26.7 <br />21.9 <br />22.9 <br />24.6 <br />27.1 <br />22.9 <br />14.1 <br />24.6 <br />31.3 <br />25 <br />20.6 <br />18.8 <br />27.1 <br />23.1 <br />18.1 <br />21.2 <br />20 <br />22.1 <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 />NR <br />NR <br />NR <br />NR <br />Dissolved Oxygen (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 />NR <br />NR <br />NR <br />NR <br />Turbidity (NTU) field <br />NA <br />NA <br />NA <br />NA <br />1.8 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1200 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />19.3 <br />NA <br />NA <br />NA <br />NA <br />Chloride <br />31.1 <br />33.2 <br />540 <br />153 <br />251 <br />112 <br />357 <br />286 <br />246 <br />188 <br />354 <br />466 <br />332 <br />380 <br />411 <br />416 <br />488 <br />433 <br />500 <br />700 <br />790 <br />490 <br />540 <br />490 <br />647 <br />929 1 <br />Chemical Oxygen Demand NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR _ <br />Nitrate Nitrogen 10.03 ND ND 0.094 0.23 ND 0.16 0.42 <0.0049 <0.0049 x0.0049 <0.0043 <0.0043 <0.0043 10.0045 <0.0045 10.045 x0.045 <0.045 <0.097 <0.045 <0.045 x0.048 <0.045 <br />Sulfate 2.7 1.8 ND 0.43 <0.021 ND ND 11 <0.052 0.21 0.51 <0.013 <0.013 <0.013 <0.021 <0.021 3.05 2.02 x0.21 <0.32 6.2 <0.33 1.1 <0.33 <br />el Is <br />Calcium, Dissolved NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR <br />Magnesium, Dissolved NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR <br />Potassium, Dissolved NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR- NR NR NR <br />SodiumDissolved NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR <br />Benzene <br />NR <br />NR <br />NR <br />17 <br />NT <br />NT <br />NT <br /><1.0 <br />NT <br />NT <br />NT <br />8.71 <br />NT <br />NT <br />NT <br />4.15 <br />NT <br />NT <br />NT <br />3.8 <br />NT <br />NT <br />NT <br />6.2 <br />Bromobenzene <br />NT <br />NT <br />NT <br /><0.74 <br />NT <br />NT <br />NT <br />10.74 <br />NT <br />NT <br />NT <br /><0.07 <br />NT <br />NT <br />NT <br /><0.07 <br />NT <br />NT <br />NT <br /><0.35 <br />NT <br />NT <br />NT <br /><0.35 <br />Bromochloromethane <br />NT <br />NT <br />NT <br /><1.2 <br />NT <br />NT <br />NT <br />x1.2 <br />NT <br />NT <br />NT <br />10.05 <br />NT <br />NT <br />NT <br /><0.05 <br />NT <br />NT <br />NT <br /><0.25 <br />NT <br />NT <br />NT <br /><0.25 <br />Bromodichloromethane <br />NT <br />NT <br />NT <br /><0.90 <br />NT <br />NT <br />NT <br />10.90 <br />NT <br />NT <br />NT <br /><0.05 <br />NT <br />NT <br />NT <br /><0.05 <br />NT <br />NT <br />NT <br /><0.25 <br />NT <br />NT <br />NT <br />@25 <br />Bromofomr <br />NT <br />NT <br />NT <br />11.4 <br /><0.5 <br />1.1* <br />NT <br /><1.4 <br />NT <br />NT <br />NT <br />10.11 <br />NT <br />NT <br />NT <br /><0.11 <br />NT <br />NT <br />NT <br /><0.55 <br />NT <br />NT <br />NT <br /><0.55 <br />n.,.,.,,.,,,.u,- <br />NT <br />NT <br />NT <br /><LI <br />NT <br />NT <br />NT <br /><Ll <br />NT <br />NT <br />NT <br /><0.38 <br />NT <br />NT <br />NT <br /><0.38 <br />NT <br />NT <br />NT <br /><1.9 <br />NT <br />NT <br />NT <br /><0.95 <br />NT <br />NT <br />NT <br /><I.5 <br />NT <br />NT <br />NT <br /><1.5 <br />NT <br />NT <br />NT <br /><0.09 <br />NT <br />NT <br />NT <br />0.0911 <br />NT <br />NT <br />NT <br /><0.45 <br />NT <br />NT <br />NT <br /><0.45 <br />_sec-bntylbenzene <br />ren-butylbenzene <br />_ <br />NT <br />NT <br />NT <br /><I.3 <br />NT <br />NT <br />NT <br /><1.3 <br />NT <br />NT <br />NT <br /><0.09 <br />NT <br />NT <br />NT <br /><0.1 <br />NT <br />NT <br />NT <br />x0.50 <br />NT <br />NT <br />NT <br /><0.50 <br />Carbon tetrachloride <br />NT <br />NT <br />NT <br /><1.3 <br />NT <br />NT <br />NT <br /><1.3 <br />NT <br />NT <br />NT <br /><0.06 <br />NT <br />NT <br />NT <br /><0.06 <br />NT <br />NT <br />NT <br /><0.30 <br />NT <br />NT <br />NT <br /><0.30 <br />Chlorabenzene <br />NT <br />NT <br />NT <br /><0.90 <br />NT <br />NT <br />NT <br /><0.90 <br />NT <br />NT <br />NT <br />0.47* <br />NT <br />NT <br />NT <br />0.26 <br />NT <br />NT <br />NT <br /><0.35 <br />NT <br />NT <br />NT <br />0.39* <br />Chloraeduum <br />NR <br />NR <br />NR <br />98 <br />NT <br />NT <br />NT <br /><1.2 <br />NT <br />NT <br />NT <br />13.1 <br />NT <br />NT <br />NT <br />5.03 <br />NT <br />NT <br />NT <br />2.3* <br />NT <br />NT <br />NT <br />3.6 <br />Chloroform <br />NT <br />NT <br />NT <br />x0.83 <br />NT <br />NT <br />NT <br /><0.83 <br />NT <br />NT <br />NT <br /><0.06 <br />NT <br />NT <br />NT <br /><0.07 <br />NT <br />NT <br />NT <br /><0.35 <br />NT <br />NT <br />NT <br /><0.35 <br />Chloromethane <br />NT <br />NT <br />NT <br /><0.53 <br />NT <br />NT <br />NT <br /><0.53 <br />NT <br />NT <br />NT <br /><0.14 <br />NT <br />NT <br />NT <br />0.152 <br />NT <br />NT <br />NT <br />10.70 <br />NT <br />NT <br />NT <br /><0.70 <br />2-chlorotoluene <br />NT <br />NT <br />NT <br />1.7 <br />NT <br />NT <br />NT <br /><0.71 <br />NT <br />NT <br />NT <br />0.454* <br />NT <br />NT <br />NT <br />0.351 <br />NT <br />NT <br />NT <br /><0.55 <br />NT <br />NT <br />NT <br /><0.55 <br />4chlorotoluene <br />NT <br />NT <br />NT <br /><l.l <br />NT <br />NT <br />NT <br /><1.I <br />NT <br />NT <br />NT <br /><0.12 <br />NT <br />NT <br />NT <br /><0. 12 <br />NT <br />NT <br />NT <br /><0.60 <br />NT <br />NT <br />NT <br /><0.60 <br />dibromochloromethane <br />NT <br />NT <br />NT <br /><0.97 <br />NT <br />NT <br />NT <br /><0.97 <br />NT <br />NT <br />NT <br />x0.06 <br />NT <br />NT <br />NT <br /><0.06 <br />NT <br />NT <br />NT <br /><0.30 <br />NT <br />NT <br />NT <br /><0.30 <br />I,2-dibromo-3 chloropane <br />NT <br />NT <br />NT <br /><1.2 <br />NT <br />NT <br />NT <br /><1.2 <br />NT <br />NT <br />NT <br /><0.29 <br />NT <br />NT <br />NT <br /><0.29 <br />NT <br />NT <br />NT <br /><1.4 <br />NT <br />NT <br />NT <br /><1.4 <br />1,2-dibrom_o_elhane <br />NT <br />NT <br />NT <br /><0.94 <br />NT <br />NT <br />NT <br /><0.94 <br />NT <br />NT <br />NT <br /><0.04 <br />NT <br />NT <br />NT <br /><0.04 <br />NT <br />NT <br />NT <br /><0.20 <br />NT <br />NT <br />NT <br /><0.20 <br />Dibromomethane <br />NT <br />NT <br />NT <br /><1.5 <br />NT <br />NT <br />NT <br /><1.5 <br />NT <br />NT <br />NT <br /><0.09 <br />NT <br />NT <br />NT <br /><0.09 <br />NT <br />NT <br />NT <br />10.45 <br />NT <br />NT <br />NT <br /><0.45 <br />1,2 -dichlorobenzene <br />NT <br />NT <br />NT <br /><0.95 <br />NT <br />NT <br />NT <br /><0.95 <br />NT <br />NT <br />NT <br />0.393° <br />NT <br />NT <br />NT <br />0.989 <br />NT <br />NT <br />NT <br /><0.55 <br />NT <br />NT <br />NT <br /><0.55 <br />1,3 -Dichlorobenzene <br />NR <br />NR <br />NR <br />Q.1 <br />NT <br />NT <br />NT <br /><I.1 <br />NT <br />NT <br />NT <br /><0. 13 <br />NT <br />NT <br />NT <br />x0.13 <br />NT <br />NT <br />NT <br /><0.65 <br />NT <br />NT <br />NT <br /><0,65 <br />1,4 -Dichlorobenzene <br />NR <br />NR <br />NR <br />2.2 <br />NT <br />NT <br />NT <br />x0.89 <br />NT <br />NT <br />NT <br />4.43 <br />NT <br />NT <br />NT <br />7.1 <br />NT <br />NT <br />NT <br />2.6 <br />NT <br />NT <br />NT <br />5.6 <br />Dichlorodifluoromethane <br />NT <br />NT <br />NT <br />10 <br />NT <br />NT <br />NT <br /><0.19 <br />NT <br />NT <br />NC <br /><0.07 <br />NT <br />NT <br />NT <br /><0.09 <br />NT <br />NT <br />NT <br /><0A5 <br />NT <br />NT <br />NT <br /><0.45 <br />1,1-Dicll-thaw <br />NR <br />NR <br />NR <br />8.7 <br />NT <br />NT <br />NT <br />2.5 <br />NT <br />NT <br />NT <br />26 <br />NT <br />NT <br />NT <br />11.7 <br />NT <br />NT <br />NT <br />3.4 <br />NT <br />NT <br />NT <br />9.3 <br />1,2-Dichloroelhane <br />NR <br />NR <br />NR <br />11 <br />NT <br />NT <br />NT <br /><LI <br />NT <br />NT <br />NT <br />8.89 <br />NT <br />NT <br />NT <br />4.01 <br />NT <br />NT <br />NT <br />2.6 <br />NT <br />NT <br />NT <br />1.3* <br />1,1-dicldarcethene <br />NT <br />NT <br />NT <br /><0.72 <br />NT <br />NT <br />NT <br /><0.72 <br />NT <br />NT <br />NT <br />@05 <br />NT <br />NT <br />NT <br /><0.06 <br />NT <br />NT <br />NT <br /><0.30 <br />NT <br />NT <br />NT <br />10.30 <br />cis-1,2-Dichloroelhene <br />NR <br />NR <br />NR <br />36 <br />NT <br />NT <br />NT <br /><0.82 <br />NT <br />NT <br />NT <br />0.843 <br />NT <br />NT <br />NT <br />0.288 <br />NT <br />NT <br />NT <br /><0.45 <br />NT <br />NT <br />NT <br /><0.45 <br />trans-1.2-dichloroedrene <br />NT <br />NT <br />NT <br /><0.94 <br />NT <br />NT <br />NT <br /><0.94 <br />NT <br />NT <br />NT <br /><0.05 <br />NT <br />NT <br />NT <br />0.113 <br />NT <br />NT <br />NT <br /><0.45 <br />NT <br />NT <br />NT <br /><0.45 <br />1,2461aropro arae <br />NT <br />NT <br />NT <br /><0.15 <br />NT <br />NT <br />NT <br />x0.15 <br />NT <br />NT <br />NT <br />1.33 <br />NT <br />NT <br />NT <br />1.43 <br />NT <br />NT <br />NT <br />0.52° <br />NT <br />NT <br />NT <br /><0.35 <br />1,3dichloropropane <br />NT <br />NT <br />NT <br /><l.l <br />NT <br />NT <br />NT <br /><l.l <br />NT <br />NT <br />NT <br /><0.09 <br />NT <br />NT <br />NT <br /><0.09 <br />NT <br />NT <br />NT <br /><0.45 <br />NT <br />NT <br />NT <br /><0.45 <br />2,2-dichloropropam <br />NT <br />NT <br />NT <br /><I.0 <br />NT <br />NT <br />NT <br /><1.0 <br />NT <br />NT <br />NT <br /><0.04 <br />NT <br />NT <br />NT <br /><0.19 <br />NT <br />NT <br />NT <br />10.95 <br />NT <br />NT <br />NT <br /><0.95 <br />1,1-dicldompropene <br />NT <br />NT <br />NT <br /><LI <br />NT <br />NT <br />NT <br /><l.l <br />NT <br />NT <br />NT <br /><0.07 <br />NT <br />NT <br />NT <br /><0.07 <br />NT <br />NT <br />NT <br />10.35 <br />NT <br />NT <br />NT <br /><0.35 <br />Cis-1,3dichloropropene <br />NT <br />NT <br />NT <br />I <br />NT <br />NT <br />NT <br /><0.76 <br />NT <br />NT <br />NT <br /><0.03 <br />NT <br />NT <br />NT <br /><0.08 <br />NT <br />NT <br />NT <br /><0.40 <br />NT <br />NT <br />NT <br /><0.40 <br />trans-1.3-dichloropropene <br />I4T <br />NT <br />NT <br /><l.l <br />NT <br />NT <br />NT <br /><l.1 <br />NT <br />NT <br />NT <br />0.0918* <br />NT <br />NT <br />NT <br /><0.07 <br />NT <br />NT <br />NT <br /><0.35 <br />NT <br />NT <br />NT <br /><0.35 <br />Ethylbenzene <br />NR <br />NR <br />NR <br />15 <br />NT <br />NT <br />NT <br />1.9 <br />NT <br />NT <br />NT <br />18.6 <br />NT <br />NT <br />NT <br />11.6 <br />NT <br />NT <br />NT <br />6.6 <br />NT <br />NT <br />NT <br />17 <br />Hexachlorobutadiene <br />NT <br />NT <br />NT <br /><0.2 <br />NT <br />NT <br />NT <br /><0.20 <br />NT <br />NT <br />NT <br />10.16 <br />NT <br />NT <br />NT <br /><0.16 <br />NT <br />NT <br />NT <br /><0.80 <br />NT <br />NT <br />NT <br />10.80 <br />Isopropylbenzene <br />NT <br />NT <br />NT <br />21 <br />NT <br />(0 18*) <br />NT <br /><1.2 <br />NT <br />NT <br />NT <br />1.05 <br />NT <br />NT <br />NT <br />1.23 <br />NT <br />NT <br />NT <br /><0.50 <br />NT <br />NT <br />. NT <br />1.1* <br />p-isop.pyltoluene <br />NT <br />NT <br />NT <br />2 <br />NT <br />NT <br />NT <br /><1.2 <br />NT <br />NT <br />NT <br />0.662 <br />NT <br />NT <br />NT <br />0.174 <br />NT <br />NT <br />NT <br />x0.55 <br />NT <br />NT <br />NT <br />10.55 <br />Methylene Chloride NR NR NR 27 NT NT NT <7.1 NT NT NT 1.12 NT NT NT 0.565 NT NT NT <0.30 NT NT NT 1.2* <br />Methly tert-butyl ether NT NT NT NT NT NT NT NT NT NT NT 254 NT NT NT 132 NT NT NT 81 NT NT NT 98 <br />Naphthalene NR NR NR (0.297*) NT (0.40*) NT <1.4 NT NT NT 0.334* NT NT NT 0.744 NT NT NT 0.97* x0.06 <0.060 NT 7.3 <br />n -pro ylbenzene NT NT NT 1.1 NT NT NT <095 NT NT NT 0.81 NT NT NT 0.656 NT NT NT <0.55 NT NT NT 0.75* <br />bene NT NT NT <0.8 NT NT NT 10.80 NT NT NT 10.09 NT NT NT <0.09 NT NT NT <0.45 NT NT NT <0.45 <br />1,1,1,2 -tetrachloroethane NT NT NT <0.86 NT NT NT <0.86 NT NT NT <0.03 NT NT NT <0.08 NT NT NT <0.40 NT NT NT <0.40 <br />