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Table 1 <br /> First Quarter 2014 Groundwater Monitoring Results - Shallow Aquifer <br /> Corral Hollow Sanitary Landfill <br /> (Units mg/l unless noted) <br /> Monitoring Point SB-1 MW-4 MW-8 <br /> Monitoring Date Date Cone. Date Cone. Date Cone. Date Cone. <br /> Trend 1/13/2014 1 Limit <br /> 1/13/2014 <br /> Limit 1/13/2014 Limit 1/13/2014 Limit <br /> .............. <br /> Monitoring and Field Parameters <br /> Elevations(Leet) <br /> TOC Elevation 275.46 NR 246.67 NR 300.93 NR NR 305.66 NR <br /> De th to Groundwater 41.99 NR 23.24 NR 70.13 NR NR 78.92 <br /> NR <br /> Groundwater Elevation 233.47 NR 223.43 NR 230.8 NR NR 226.74 NR <br /> General Water QualijyPa eters <br /> Temperature('C)(field) 24.0 NR 21.1 NR 20.6 NR NR 20.1 NR <br /> pH(units)(field) 7.61 6.89-7.7 7.07 6.78-8.0 7.02 6.89-8.1 NS 7.73 6.89-8.2 <br /> Electrical Conductivity 2,400 NS <br /> 1048 1,700 1873 3,400 1308 653.9 810 <br /> (US/cm) (field) <br /> Turbidity(NTU)(field) 16.7 200 51.6 200 17.6 180 NS 14.4 73 <br /> Constituents of Concern <br /> Bicarbonate Alkalinity as <br /> 630 700 400 510 600 680 NS 290 330 <br /> HCO3 <br /> Carbonate Alkalinity as <br /> ND 680 ND 5 ND 220 <br /> 780 NS ND <br /> CaCO3 <br /> Chloride 17 120 170 650 100 280 NS 32 84 <br /> Nitrate as Nitrogen 0.09 42 10 59 14 45 NS 11 13 <br /> Sulfate 37 67 500 1300 12 660 deer 16 26 <br /> .......... <br /> 450 <br /> 1400 2000 1500 incr 410 <br /> 800 <br /> Total Dissolved Solids 630 810 <br /> Calcium 86 100 <br /> 170 210 150 160 NS 61 1 <br /> i <br /> Magnesium 25 31 60 82 42 45 NS 16 1 <br /> 1 <br /> Sodium 140 160 190 240 110 110 NS 59 1 <br /> Potassium 3.3 5.1 6.2 7.2 5.0 4.4 NS 31 <br /> Volatile Organic CoM2ounds(8260B)(ugM <br /> Chloroform ND detect ND detect (0.41*) detect NS ND detect <br /> 1,1-DichloroethaDe ND detect ND detect 0.30* detect incr 0.61 detect <br /> Dichlorodifluoromethane 0.20* detect ND detect 3.4 detect deer 4.9 <br /> detect <br /> Cis-1,2-DieWoroethene ND detect ND detect 0.60 detect incr 0.11* detect <br /> 1,2-Dichloropropane ND detect ND detect 0.16* detect deer ND <br /> detect <br /> detect NS {5.71 detect <br /> Tetrachloroethene(PCE) ND detect ND detect {5.4) <br /> Trichloroethene(TCE) ND detect ND detect 0.79 detect deer 0.41* detect <br /> Trichlorofluoromethane ND detect ND detect 4.7 detect deer 8.1 detect <br /> Vinyl Chloride ND detect ND detect 0.16* detect deer ND detect <br /> NR=Not Required ND=Not Detected *Trace Concentration(estimated value) <br /> NE=Not established,due to>50%non-detects NT=Not Tested <br /> {}Parameter also detected in one or more quality control blanks <br /> MCL=Maximum Contaminant Levels NL=Not Listed Bold values indicate a detected organic compound. <br /> NS=Not statistically significant deer=significantly decreasing trend finer=significantly,increasing trend <br /> Underlined values indicate a concentration limit exceedance. I=Insufficient data for statistical analysis <br /> [11 Not established due to statistically significant increasing trend. Concentration limit from WDRs. <br /> Corral Hollow Sanitary Landfill 19 Department of Public Works/Solid Waste <br /> 1"Quarter 2014 Groundwater Monitoring County of San Joaquin-March 15,2014 <br />