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TABLE 2 <br /> FIRST QUARTER 2014 GROUNDWATER MONITORING RESULTS <br /> NORTH COUNTY RECYCLING TER 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 1/28/14 1/28/14 1/28/14 1/28/14 1/28/14 1/28/14 <br /> Monitoring and Field Parameters <br /> Elevations feet <br /> Top of Casing 120.95 110.10 114.06 117.35 110.86 114.41 NR <br /> Depth to 170.17 158.48 162.38 165.78 159.34 161.58 NR <br /> Groundwater <br /> 1 Groundwater -49.22 -48.38 -48.32 -48.43 -48.48 47.17 NR <br /> Elevation <br /> General Water Qualitv Parameters <br /> Temperature(°C) 16.4 19.5 19.4 19.0 19.3 NS NR <br /> pH (units) 7.72 7.85 7.72 7.61 8.03 NS 6.0-8.1 <br /> Electrical 277.1 243.2 194.2 191.3 288.6 NS 550 <br /> Conductivity uS/cm <br /> Turbidity(NTU) 241.3 48.8 16.3 16.8 16.7 NS 97 <br /> Dissolved Oxygen 1.21 1.21 1.43 1.27 1.12 NS I <br /> Redox Potential +171 +192 +198 +217 +187 NS I <br /> Constituents of Concern <br /> Calcium 19 18 14 14 17 NS 23 <br /> Magnesium 59 9.7 8.0 7.9 9.2 NS 48 <br /> Sodium 17 18 15 15 29 NS 32 <br /> Potassium 8.5 4.1 3.4 2.8 5.0 NS 110 <br /> Bicarbonate Alkalinity 130 120 96 100 130 NS 200 <br /> Total Alkalinity as 110 100 79 83 110 NS 190 <br /> CaCO3 <br /> Chloride 8.2 7.3 7.2 6.9 16 NS 44 <br /> Nitrate as N 1.4 1.5 1.5 1.2 1.5 NS 9.2 <br /> Sulfate 4.0 3.7 4.2 3.7 5.8 NS 30 <br /> Hardness as CaCO3 470 87 66 68 78 NS I <br /> Total Dissolved 270 200 180 170 220 NS 460 <br /> Solids <br /> Chemical Oxygen 69 ND ND ND ND NS I <br /> Demand <br /> Volatile Organic Compounds 8260B u /L <br /> Acetone 10 ND ND ND ND ND detect <br /> All Compounds I ND NS ND ND NS ND detect <br /> G-1 = New Upgradient Well I = Insufficient data for statistical analysis <br /> NS = Not Sampled Underlined values indicate a concentration limit exceedance. <br /> NR= Not Required *Trace Concentration (Estimated Value) <br /> ND = Not Detected <br /> NE = Not Established due to>50% non-detects <br /> No sample collected at G-6 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 /> North County RC&SL Public Works/Solid Waste <br /> 15`Semiannual 2014 Groundwater Monitoring 12 County of San Joaquin-July 31,2014 <br />