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TABLE 1-CONTINUED <br /> HARNEY LANE SANITARY LANDFILL <br /> FIRST SEMIANNUAL FIRST QUARTER 2014 GROUNDWATER MONITORING <br /> Units m IL unless noted <br /> Sampling Designation MW-5 MW-6 MCL's <br /> Sampling Date 1/16/14 Conc. 1/16/14 Conc. Limit Mg/L <br /> Limit <br /> Monitoring and Field Parameters <br /> Elevations(feet) <br /> TOC Elevation 88.74 NA 95.56 NA NR <br /> Depth to Groundwater 132,76 NA 135.95 NA NR <br /> Groundwater Elevation -44.02 NA -40.39 NA NR <br /> General Water Quali Parameters <br /> Temperature(°C) 19.1 NA 20.1 NA NR <br /> Electrical Conductivity(EC) 917.4 1100 293 [3] 900 <br /> uS/cm field <br /> pH (units)(field) 7.31 6.1-8.4 7.85 6.1-9 6.5-8.5 <br /> Turbidity(NTU)(field) 74.3 110[2] 41.3 75 NL <br /> Oxygen Reduction Potential +167 250 +63 260 NL <br /> my <br /> Dissolved Oxygen (mg/1) 1.43 1.7 0.87 1.6 NL <br /> Constituents of Concern <br /> Calcium 93 100 21 31 NL <br /> Magnesium 49 57 9.5 20 NL <br /> Sodium 51 71 28 93 NL <br /> Potassium 6.0 6.5 2.3 13 NL <br /> Alkalinity as CaCO3 420 430 97 180 NL <br /> Bicarbonate Alkalinity 510 530 120 270 NL <br /> Chloride 55 65 23 31 250 <br /> Nitrate as N 1.1 1.1 3.4 4.4 10 <br /> Sulfate 26 27 3.2 42 NL <br /> Hardness as CaCO3 430 480 86 150 NL <br /> Total Dissolved Solids(mg/1) 690 752 160 370 500 <br /> Chemical Oxygen Demand 6.2 28 ND 30 NL <br /> Volatile Organic Compounds u /L <br /> Dichlorodifluoromethane(CFC- 0.96 detect ND detect NL <br /> 12 <br /> Tetrachloroethene (PCE) {0.39*} detect ND detect 5.0 <br /> All Other Compounds ND detect ND detect NR <br /> NA=Not Available NR=Not Required NL=Not Listed <br /> ND=Not Detected <br /> 0 Parameters also detected in one or more quality control blanks <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 /> 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 /> I"Semiannual 2014 Groundwater Monitoring Report County of San Joaquin-July 31,2014 <br />