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TABLE 1-CONTINUED <br /> HARNEY LANE SANITARY LANDFILL <br /> THIRD QUARTER 2012 GROUNDWATER MONITORING <br /> Units m IL unless noted <br /> Sampling Designation MW-5 MW-6 MCL's <br /> Sampling Date 1 7/30/12 Conc. Limit 7/30/12 Conc. Limit Mg/L <br /> Monitoring and Field Parameters <br /> Elevations(feet) <br /> TOC Elevation 88.74 NA 95.62 NA NR <br /> Depth to Groundwater 129.44 NA 133.18 NA NR <br /> Groundwater Elevation -40.7 NA -37.56 NA NR <br /> General Water Qualitv Parameters <br /> Temperature(°C) 22.8 NA 23.3 NA NR <br /> Electrical Conductivity 1061 [3] 1011 [3] 900 <br /> uS/cm field <br /> pH(units)(field) 7.27 [3] 7.27 [3] 6.5-8.5 <br /> Turbidity(NTU)(field) 21.7 [3] 18.1 [3] NL <br /> Oxygen Reduction +128 [3] +116 [3] NL <br /> Potential my <br /> Dissolved Oxygen(mg/1) 1.14 [3] 1.01 [3] NL <br /> Constituents of Concern <br /> Calcium 94 [3] 22 [3] NL <br /> Magnesium 52 [3] 9.8 [3] NL <br /> Total Alkalinity as CaCO3 390 [3] 100 [3] NL <br /> Chloride 59 [3] 22 [3] 250 <br /> Dissolved Hardness as <br /> CaCO3 450 [3] 94 [3] NL <br /> Total Dissolved Solids 570 [3] 200 [3] 500 <br /> Chemical Oxygen Demand 11 [3] ND [3] NL <br /> Volatile Organic Compounds u /L <br /> Dichlorodifluoromethane 1.1 detect ND detect NL <br /> Tetrachloroethene 0.25* detect ND detect 5.0 <br /> All Other Compounds ND detect ND detect NR <br /> NA=Not Available NR=Not Required Incr=Increasing NL=Not Listed <br /> ND=Not Detected NS=Not Sampled Decr=Decreasing <br /> [1]Not established due to>50%non-detects <br /> [2]Not established statistically due to significant increasing trend. Concentration limit from WDRs. <br /> [3]Not established statistically due to less than required data for calculation. <br /> "=Trace concentration(estimated value) <br /> {}Analyte was detected in one or more lab blanks, <br /> Underlined values indicate a concentration limit exceedance. <br /> Bold values indicate a detected organic compound. <br /> Conc.Limit as calculated by Sanitas using Historical Data. <br /> Harney Lane Sanitary Landfill Department of Public Works/Solid Waste <br /> 2nd Semester and Annual 2012 Groundwater Monitoring Report County of San Joaquin—January 25,2013 <br />