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TABLE 4 <br /> FOURTH QUARTER 2013 GROUNDWATER ELEVATION MONITORING RESULTS <br /> NORTH COUNTY RECYCLING CENTER AND SANITARY LANDFILL <br /> (Units mg/I unless noted) <br /> Sampling Conc. <br /> Designation G-1 G-2A G-3D G-4 G-5A G-6 Limits <br /> Sampling Date 10/11/13 11/14/13 10/11/13 10/11/13 11/14/13 10/11/13 <br /> Monitoring and Field Parameters <br /> Elevations feet <br /> Top of Casing 120.95 110.20 114.06 117.35 110.96 114.41 NR <br /> Depth to 171.38 159.39 164.07 166.72 160.64 161.64 NR <br /> Groundwater <br /> Groundwater -50.43 -49.19 -50.01 -49.37 -49.68 -47.23 NR <br /> Elevation <br /> General Water Qualit Parameters <br /> Temperature °C NS 20.5 NS NS 20.5 NS NR <br /> H units NS 7.99 NS NS 8.20 NS 6.0-8.0 <br /> Electrical NS 247.2 NS NS 290.4 NS 550 <br /> -Conductivity uS/cm <br /> Turbidity (NTU) NS 137.8 NS NS 119.7 NS 97 <br /> Constituents of Concern <br /> Calcium NS 21 NS NS 17 NS 23 <br /> Magnesium NS 12 NS NS 9.9 NS 45 <br /> Total Alkalinity as NS 100 NS NS 100 NS 190 <br /> CaCO3 <br /> Chloride NS 9.1 NS NS 18 NS 44 <br /> Hardness as CaCO3 NS 100 NS NS 83 NS I <br /> Total Dissolved NS 200 NS NS 220 NS 310 <br /> Solids <br /> Chemical Oxygen NS ND NS NS ND NS I <br /> Demand <br /> Volatile Organic Compounds 8260B u /L <br /> All Compounds I NS ND NS NS ND NS detect <br /> G-1 = Upgradient Well <br /> G-2A = Replacement Downgradient Well <br /> G-5A= Replacement Downgradient Well <br /> NS = Not Sampled <br /> NR= Not Required <br /> ND = Not Detected <br /> NE = Not Established due to >50% non-detects <br /> No sample collected at G-2 this quarter due to low water level <br /> No sample collected at G-5 this quarter due to low water level <br /> {1} Parameter also detected in one or more quality control blanks. <br /> Underlined values indicate a concentration limit exceedance. <br /> *Trace Concentration (Estimated Value) <br /> I = Insufficient data for statistical analysis <br /> North County RC&SL Public Works/Solid Waste <br /> 2nd Semester and Annual 2013 Groundwater Monitoring 17 County of San Joaquin—January 25,2014 <br />