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Table 1- Continued <br /> First Quarter 2014 Groundwater Monitoring Results — Shallow Aquifer <br /> Corral Hollow Sanitary Landfill <br /> (Units m unless noted <br /> Monitoring Point MW-9A MW-IOA MW-IIA <br /> Monitoring Date Date Conc. Date Conc. Date Conc. <br /> 1/13/14 Limit 1/13/14 Limit 1/13/14 Limit <br /> Monitoring and Field Parameters <br /> Elevations(feet) <br /> TOC Elevation 298.18 NR 281.05 NR 265.72 NR <br /> Depth to Groundwater 85.24 NR 74.12 NR 44.30 NR <br /> Groundwater Elevation 212.94 NR 206.93 NR 221.42 NR <br /> General Water Quality Parameters <br /> Temperature(°C)(field) 19.6 NR 19.1 NR 20.1 NR <br /> H units (field) 7.73 1 7.88 1 6.64 I <br /> Electrical Conductivity 837.9 I 711.3 1 1388 I <br /> (uS/cm)(field <br /> Turbidity(NTU)(field 16.0 I 16.4 I 17.4 1 <br /> Constituents of Concern <br /> Bicarbonate Alkalinity 100 1 110 I 570 I <br /> as HCO3 <br /> Carbonate Alkalinity as ND I ND I ND I <br /> CaCO3 <br /> Chloride 110 I 91 I 84 I <br /> Nitrate as Nitrogen 34 I 26 I 2.7 I <br /> Sulfate 15 I 22 I 71 1 <br /> Total Dissolved Solids 560 1 460 I 730 1 <br /> Calcium 69 I 52 I 110 I <br /> Magnesium 17 I 14 I 33 1 <br /> Sodium 66 I 68 I 1140 1 I <br /> Potassium 3.6 I 2.9 1 I 1 3.9 I <br /> Volatile Organic Compounds 8260B u <br /> Dichlorodifluoromethane ND detect ND detect 0.33* detect <br /> Cis-1.2-Dichloroethene ND detect ND detect 0.38* detect <br /> Tetrachloroethene ND detect ND detect 0.15* detect <br /> Trichloroethene ND detect . ND detect 0.10* detect <br /> All Other Compounds ND detect ND detect ND detect <br /> NR=Not Required ND=Not Detected NT=Not Tested NL=Not Listed <br /> NE=Not established,due to>50%non-detects <br /> {)Parameter also detected in one or more quality control blanks <br /> MCL=Maximum Contaminant Levels <br /> *Trace Concentration(estimated value) <br /> Bold values indicate a detected organic compound. <br /> NS=Not statistically significant <br /> deer=significantly decreasing trend incr=significantly increasing trend <br /> Underlined values indicate a concentration limit exceedance. <br /> I=Insufficient data for statistical analysis <br /> [1] Not established due to statistically significant increasing trend. Concentration limit from WDRs. <br /> Corral Hollow Sanitary Landfill 20 Department of Public Works/Solid Waste <br /> 151 Quarter 2014 Groundwater Monitoring County of San Joaquin—March 15,2014 <br />