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HISTORICAL SUMMAP` YTICAL RESULTS <br /> TS <br /> NORTH.COUNTY oANITARY.LANDFILL <br /> L-1 <br /> Sample esignation -1 -1 - -1 -1 -1 - - - <br /> Sampling Date 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 1/11/01 4/12/01 7/31/01 10/10/01 -1/23/02 4/17/02 7/16/02 10/1/02 <br /> Monitoring and Field.Parameters <br /> General Water Quality Parameters <br /> em erature 25. 22. 23.1 27. 25.5 '2 1 24.4 25.3 24.1 23.6 18.7 23.5 23.8 21.4 21.3 20.1 <br /> Chloride 79 664 4 6 428 46 76 477 577 536 594 590 570 000 1300 830 1200 70 <br /> 7 770 <br /> Nitrate Itrogen < .0049 `0.052 0.41 `0.0049 `0.0043 <0.0 4 <0. 043 `0.00 5 <0.0 5 <0.045 <0.045 <0.0 5 1.40 `0.045 `0.045 `0.048 `0.045 <br /> ota ssoive <br /> Solids 2,08 2;090 620 1,660 1,950 2,500 1, 0 990 850 880 ,01 1,900 2,500 2,500 2,100 2,700 2,100 <br /> Sul ate 0.11 < .0049 0.0 0.1 <0.013 <0.013 2.58 <0.0 1 <0.021 2.51 .97 < .21 <0.32 <0.3 0.91 1.1 0.50 <br /> PH std.units 6.47 6.5 6.52 6.19 6.64 6.29 6o C 6.53 6.65 6.06 7.36 6.64 6.2 6.69 6.74 7.37 6.81 <br /> Elec calConductivity(um os/cm 2 90 3.2 2 2706-6 2 803 2 863 JAW/ 3,2 8 3,29 3,14 2,8 390 ,050 3,770 3,480 2,560 57A0 A <br /> ------- <br /> Turbidity(N fie/ A >20 A NA NA NA NA i 9 7 NA INA I <br /> Volatile Organic Com ounds WWI) 46 T N NT <9.0 <br /> Acetone 29 NT 8.27" N N 40. N <19 N NT <96 <br /> Acetonitnle N N < 1. NT T <1 NT N < <br /> FIT < 9.73 N <1.85 N < .8 N 9.2 <br /> cro e n <1.0 T <1.12 <1. <br /> N <7.38 < <br /> Acrylonitrile a NT `0.98 N N <0.98 N N 4.9 <br /> I i chloride e <4.0 <br /> enzene .1 T 5.25 N T T 07 T T 4.5 N N 4. <br /> Bromo enzene < .7 N N N `0.07 T N f NT `0.07 N T <br /> `0.07 T T T `0.35 <br /> Bromoch oromet ane < .2 N <0. 5 T NT < . < .0 T <br /> Bromodichloromet ane `0.90 NT NT T `0.05 NT N NT `0.05 T T `0.05 NT <0.2 <br /> <0. 1 <0. 1 N NT `0.55 <br /> romo orm <1. NT T NT N N `0.38 N 141 NT N `0.38 N T <0. 5 <br /> romome ane <1.1 N T `0.38 <br /> 2-butanone <1.0 N N .7 1* T NT T 1.9 * T NT 1.9* T N N 5 <br /> NT <br /> n-butylbenzene < .6 NT N `0.11 T T .1 * T T T 0.101 N Z0.55 <br /> sec bu enzene <1.5 T T 0 133 T N 17 T T < .45 <br /> tert-but (benzene <1.3 T T T <0.09 NT T NT T <br /> T <0 10 NT NT N I <u ou <br /> Car on isu Ide `0.96 T NT T `1.36 N NT `1.36 T NT N <1.4 NT <6.8 <br /> Carbon tetrachloride <1.3 N NT N < .06 NT NT <0. 6 NT NT 0.4* `0.06 N N N <0.3 <br /> Chlorobenzene <0.90 N 0.174 NT N NT 0.168 NT 0.12 T N T `0.35 <br /> Chloroethane 13 N NT N 7.36 NT NT T 8.29 NT NT T 11 NT NT NT <6.8 <br /> 2-chloroeth I vinyl ether <1.6 N NT T <1.3 NT NT <1.36 NT NT N <1. N NT T <br /> Chloroform `0.83 N N N `0.06 NT `0.07 N N `0.07 T NT N `0.35 <br /> Ch orome ane `0.53 N N N < 24 <br /> 0.1 N T 0.149 N N `0.14 N NT T' <br /> h oro rene N N NT <5 N NT N <5 NT T T <4.9 NT NT N <55 <br /> 2-chloro-toluene <0.7 N N 0.534 NT T NT 0.445 T T 0.16* NT NT <0.60 <br /> NT NT <br /> ch oroto uene <1.1 T N NT `0.12 NI Ni- T `0.06 NT NT <0. 6 T NT -N <0.30 <br /> dl romochloromethane <0.97 NT <0.06 N NT <br /> 1,2- bromo-3-ch oro ane < .2 N `0.29 T NT T `0.29 NT <br /> <0. NT N <1 <br /> `0.04 NT `0.20 <br /> <0. 4 i IT `0.09 NT N 0.09 NT N <0.45 <br /> 1,2- romoet ane T `0:009 N T NT < 04 NT < <br /> ibromOM <br /> omet ane <1.5 T <3 26 T N < .68 N N NT < .7 <8• <br /> trans-1, Ich oro-2- utene <13 T T * N 0.12 N N NT `0.55 <br /> 1,2-dichlorobenzene < .95 N 0.359 N T 0. 3 N `0.13 <br /> 1,3-Dichlorobenzene <1.1 T NT <0. T T <0.6 <br /> 1,4-Dich orob enzene 2.6 NT T T 3.3 N N 4 T N 2.2 N N T 1.8 <br /> Dichlorodifluoromethane <0. 9 T `0.07 2.24 T T N < .09 T NT `0.45 <br /> Not equire <br /> *=Trace Concentration <br /> NT=Not Tested <br /> 53 of 68 <br /> II Printed:7/23/2004 <br />