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n <br />C� <br />r <br />11 <br />,_.J <br />r <br />11 <br />I <br />11 <br />J <br />Table 1 - Continued <br />Third Quarter 2013 Groundwater Monitoring Results — Shallow Aquifer <br />Corral Hollow Sanitary Landfill <br />(Units mg/1 unless noted) <br />Monitoring Point MW -9A MW -10A <br />MW -11A <br />Monitoring Date Date <br />Conc. ___D_at_e__T <br />Cone. <br />Date <br />Conc. <br />7/18/13 <br />Limit 7/18/13 <br />Limit <br />7/18/13 <br />Limit <br />Monitoring and Field Parameters <br />Elevations (feet) <br />TOC Elevation 298.18 NR 281.05 <br />NR <br />265.72 <br />NR <br />Depth to Groundwater 84.08 NR 74.12 <br />NR <br />44.03 <br />NR <br />Groundwater Elevation 214.10 NR 206.93 <br />NR <br />221.69 <br />NR <br />General Water Quality Parameters <br />Temperature (°C) (field) 22.0 NR <br />21.8 <br />NR <br />21.7 <br />NR <br />H (units) (field) 7.54 I <br />7.52 <br />I <br />6.79 <br />I <br />Electrical Conductivity 865.9 I <br />(uS/cm)(field <br />717.1 <br />I <br />1349 <br />1 <br />Turbidity (NTU) (field) 36.7 1 <br />46.3 <br />I <br />31.8 <br />1 <br />Constituents of Concern <br />Chloride 110 1 94 <br />I <br />89 <br />I <br />Nitrate as Nitrogen 33 I 25 <br />I <br />2.3 <br />1 <br />Sulfate 14 I 21 <br />I <br />62 <br />I <br />Total Dissolved Solids 640 I 510 <br />1 <br />820 <br />I <br />Volatile Organic Com ounds *826013 u /L <br />__CIS- —1,2-Dichloroethene I ND detect ND <br />detect <br />0.55 <br />detect <br />Trichlorofluoromethane ND detect 0.22* <br />detect <br />ND <br />detect <br />Dichlorodifluoromethane ND detect 1.5 <br />detect <br />0.61 <br />detect <br />Tetrachloroethene ND detect 0.64 <br />detect <br />ND <br />detect <br />All Other Compounds ND detect ND <br />detect <br />ND <br />detect <br />NR = Not Required ND = Not Detected <br />NE = Not established, due to > 50% non -detects NT = Not Tested <br />MCL = Maximum Contaminant Levels NL = Not Listed <br />NS = Not statistically significant deer = significantly decreasing trend <br />I = Insufficient data for statistical analysis incr = significantly increasing trend <br />Underlined values indicate a concentration limit exceedance. Bold values indicate a detected organic compound. <br />[1] Not established due to statistically significant increasing trend. Concentration limit from WDRs. <br />* Trace Concentration (estimated value) <br />{) = Parameter also detected in one or more quality control blanks <br />Corral Hollow Sanitary Landfill 20 Department of Public Works/Solid Waste <br />3" Quarter 2013 Groundwater Monitoring County of San Joaquin — October 15, 2013 <br />