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Table I <br /> Second Quarter 2014 Groundwater Monitoring Results - Shallow Aquifer <br /> Corral Hollow Sanitary Landfill <br /> (Units mg/I unless note <br /> Monitoring Point SB-1 MW 4 MW-5 MW-8 <br /> Monitoring Date Date Cone. e Cone. Date <br /> Cone. <br /> .................. .......... <br /> 5/2/2014 Limit 5/2/2014 Limit 522014 Limit <br /> ............... <br /> ................ <br /> Trend 5/2/2014 Limit <br /> Monitoring and Field Parameters <br /> Elevations(feet) <br /> TOC Elevation 275.46 j NR 246.67 NR 300.93 NR NR 1 :305.66 I NR <br /> Depth to Groundwater 42.52 NR 24.56 NR 70.65 NR RL. 79.01..... NR <br /> Groundwater Elevation 232.94 NR 222.11 NR 230.28 NR NR 226.65 NR <br /> General Water Quality Parameters <br /> Temperature('C)(f�l 25.7 NR 25.10 NR 24.6 NR NR 24.1 NR <br /> J�......... <br /> pH(units)(field) 7.76 6.89-7.9 7.82 6.78-8.0 7.55 6.89-8.0 NS 7.73 6.89-8.2 <br /> ................ <br /> Electrical Conductivity 1016 1,700 1916 3,400 1188 2,400 NS 639.0 790 <br /> (US/cm) (field) <br /> Turbidity(NTU)(field) 74.9 200 87.8 400 81.5 150 NS 76.9 11 73 <br /> Constituents of Concern <br /> Bicarbonate Alkalinity as NS 700 NS 510 580 680 NS NS 330 <br /> HCO3 <br /> Carbonate Alkalinity as NS 680 NS 5 ND 780 NS NS 220 <br /> CaCO3 <br /> Chloride 16 120 180 650 100 280 NS 33 84 <br /> ............ <br /> Nitrate as Nitrogen ND 42 9.9 59 14 45 NS <br /> 13 <br /> Sulfate36 63 500 1300 11 660 deer IT 26 <br /> .......... .................... <br /> Total Dissolved Solids 650 810 1400 2000 incr 1500 780 400 440 <br /> ........................................................... ...............-___1 <br /> Calcium NS 100 NS 210 130 160 NS NS I <br /> ...................... .................... <br /> Ma nesium NS 31 NS 82 39 45 NS NS I <br /> j ...................................... <br /> Sodium NS 160 NS 240 93 110 NS NS <br /> .................... <br /> N�.................. <br /> Potassium NS 5.1 7.2 3.7 4.4 NS NS <br /> .................................... <br /> Volatile Organic Comt)ounds(8260B)(u L) <br /> ............ <br /> 0.40* detect S ND detect <br /> ....................... --------- ...................... <br /> Chloroform ND detect ND detect <br /> 1,1-Dichloroethane ND detect ND detect 0.28* detect mer 0.63 detect <br /> . ...................................... ............. ......................... <br /> Dichlorodifluoromethane ND detect ND detect 7.3 detect deer 6.0 detect <br /> ............... ------------- ------ <br /> s-1,2-Dichloroethene ND <br /> detect ND detect 0.50 detect incr 0.12* detect <br /> ......................... <br /> 1,2-Dichloropropane ND detect ---::jN�:DD:j detect detect deer ND detect <br /> Ci <br /> Methylene chloride ND detect ND detect 0.85* NS ND detect <br /> .................................... <br /> TetrachloroethenePCE, ND detect ND detect 5.1 detect NS 5.1 detect <br /> .................. <br /> Trichloroethene detect 0*71 detect deer 0.37* detect <br /> ND detect ND <br /> .. ............ <br /> Trichlorofluoromethane ND detect ND detect 4.9 detect 8.2 detect <br /> ......Yinyj_Chl de ND detect ND detect 0.44* detect deer ND detect <br /> ............... ------- <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 incr=significantly increasing trend <br /> Underlined values indicate a concentration limit exceedance. I=Insufficient data for statistical analysis <br /> [1] Not established due to statistically significant increasing trend. Concentration limit from VVDRs. <br /> Corral Hollow Sanitary Landfill 20 Department of Public Works/Solid Waste <br /> 2nd <br /> Quarter 2014 Groundwater Monitoring County of San Joaquin-July 15,2014� <br />