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HISTORICAL ANALYTICAL RESULTS <br /> GROUNDWATER <br /> CORRAL HOLLOW SANITARY LANDFILL <br /> MW-5 <br /> Units:m2/1,unless noted <br /> sample Uesignation - - W-5 MW-5 MW-5 - -5 <br /> Sampling Date 1/25/02 4/22/02 7/22/02 10/3/02 1/9/03 4/24/03 7/28/03 10/8/03 <br /> Monitoring and Field Parameters <br /> General Water Quality Parameters <br /> em <br /> erature,Field(°C) 15.8 18.8 20.6 21 16.6 18.6 19.9 23.5 <br /> hioride 110.0 110 110 100 99 110 110 99 <br /> Nitrate-Nitrite as Nitrogen 18 18 17 16 <0.045 17 15 14 <br /> Total Dissolved Solis 690 710 leo 720 690 720 710 690 <br /> 2ulfate 17 16 15 15 53 16 15 14 <br /> PH eld(units) 6.77 6.58 7.21-6.81-6.81 6.91 7.03 7.10 <br /> Electrical Conductivity,field(umho: 960 420 490 380 2090 1207 1364 1248 <br /> urbitity,Field(NTU) 71.60 17.9 46.9 31.6 49.7 14.6 84.7 67.9 <br /> Ca cium120 NR NR NR T20 <br /> -- ------ - ---------. e. <br /> otass um----. ----- ---------- --__.-- -<0.92 _ <br /> -----NR--- ----NR NR- ---I*6*-- <br /> - <br /> - - neslum -37 NR NR NR 7. <br /> Sodium -85---NR--NR----KR- - 87 - -- - <br /> Volatile Organic Compounds(ug/0 <br /> Acetone NM <{,g <1.8 <2.0 {1.0*} <0.52 {0.73*} <0.52 <br /> Benzene <0.14 0.16* 0.18* <0.2 <0.28 <0.28 <0.28 <0.28 <br /> Bromomet ane _{0.68*} <br /> 2-gutanone _ <br /> -- -- <br /> C oroorm <br /> Chloromethane 0.11* <0.14 <0.14 <0.3 <0.18 <0.18 0.19* <0.18 <br /> Dichlorodifluoromethane 8.7 8.5 7.8 <0.2 14 14 8.9 9.9 <br /> 11,11-Dichloroethane 0.19* 0.28* <0.04 <0.22 0.26" 0.29 <0.22 <br /> cis-1,2-Dic oroethene <0.15 0.22* 0.28* 0.4* <0.31 <0.31 <0.31 <0.31 <br /> trans-1,2-13ichioroethene <0.13 <0.09 <0.09 <0.2 <0.26 <0.26 <0.26 <0.26 <br /> 1, - c oro ro ane <0.16- 0, <0.07 0,4 <0.32 <0.32 <0.32 <�3 <br /> Meth lane e 1.3 (1.5) 9 <0.7 <0.23 1.6}�--�.2j- <br /> Me I tert-butyl ether <0.18 <0.08 <0.08 <0.3 <0.36 <0.36 <0.36 <R3, <br /> apthalene <0.46 <0.1 <0.1 <0.3 <0.93 <0.93 <0.93 <0.93 <br /> Tetrachloroet ene 4.6 5.8 6.7 16.9 6.5 5.1 5.1 4.3 <br /> Toluene <0.16 <0.07 <0.07 <0.2 <0.32 <0.32 <0.32 <0.32 <br /> 1,2,3-Tric orobenzene <0.23 <0.12 <0.12 <0.8 <0.46 <0.46 <0.46 <0.46 <br /> Trichlorofluoromethane 3.3 3.7 6.9 <0.4 6.0 4.5 4.7 3.5 <br /> Trichloroethene 0.54 0.82 1.0 2.2 0.85 0.85 0.72 0.60 <br /> 1,2,4-Trimethylbenzene <0.11 <0.2 <0.18 <0.18 <0.18 <0.18 <br /> Vinyl CTiforide <0.08 0.77 0.92 <0.2 0.36* 0.61 0.79 0.62 <br /> m,p- ane <0.24 <0.21 <0.21 <0.2 <0.38 <0.38 <0.38 <0.38 <br /> o-Xylene <0.24 <0.07 <0.07 <0.2 <0.15 <0.15 <0.15 <0.15 <br /> Organic compounds detected in one or more samples are listed. <br /> [1]=This analytical result appears to be anomalous and therefore was not used in the statistical evaluation procedures. <br /> {1}=Also found in one or more quality control blanks(indicated for data from 10-13-99 to present) <br /> *=Trace concentration <br /> NR=Not Requested <br /> MW-5;Printed:1/15/2004 21 of 28 <br />