ARCHIVED REPORTS_2010_11 - Laserfiche WebLink

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AMW-5R, and AMW-18, chloride at AMW-5R, nitrate at AMW4 and AMW-5R, field pH at AMW-4, AMW-5R, and AMW-19BR, potassium at AMW-5R, sodium at AMW-5R, field specific conductance at AMW-1 and AMW-5R, strontium at AMW-18, sulfate at AMW-5R and AMW-10, TDS at AMW-5R, and field turbidity at AMW-5R and AMW-10. Carbonate at AMW-5R exhibited an apparent increasing trend according to the Mann-Kendall / Sen's Slope analysis,but this trend is due to a historical increase in the laboratory RL. The third quarter 2010 concentration of barium at AMW-1 (0.39 mg/L) is comparable to historical concentrations observed at that well, and is well below the National Primary Drinking Water Standard (2 mg/L). The third quarter 2010 concentration of barium at AMW-5R (0.345 mg/L) is comparable to historical concentrations observed at that well, and is well below the National Primary Drinking Water Standard(2 mg/L). The third quarter 2010 concentration of bicarbonate at AMW-1 (734 mg/L) is comparable to historical concentrations observed at that well. The third quarter 2010 concentration of bicarbonate at AMW-5R(404 mg/L) is comparable to concentrations observed at that well and at predecessor well AMW-5 since August 2003. The third quarter 2010 concentration of bicarbonate at AMW-18 (267 mg/L) is comparable to concentrations observed at that well since August 2004. The third quarter 2010 concentration of chloride at AMW-5R (102 mg/L) is comparable to historical concentrations observed at that well and at predecessor well AMW-5, and is below the National Secondary Drinking Water Standard (250 mg/L). The third quarter 2010 concentration of nitrate at AMW-4 (0.514 mg/L) is comparable to concentrations observed at that well since February 2008, and is below the National Primary Drinking Water Standard(10 mg/L). The third quarter 2010 concentration of nitrate at AMW-5R(27.4 mg/L) is comparable to historical concentrations observed at that well, and exceeds the National Primary Drinking Water Standard(10 mg/L). The third quarter 2010 field pH value at AMW-4 (8.41 s.u.) is within the National Secondary Drinking Water Standard range of 6.5 - 8.5 s.u. The third quarter 2010 field pH value at AMW- 5R (7.39 s.u.) is comparable to historical values observed at that well, and is within the National Secondary Drinking Water Standard range of 6.5 - 8.5 s.u. The third quarter 2010 field pH value at AMW-19BR (7.63 s.u.) is comparable to historical values observed at that well, and is within the National Secondary Drinking Water Standard range of 6.5 - 8.5 s.u. The third quarter 2010 concentration of potassium at AMW-5R (8.35 mg/L) is comparable to historical concentrations observed at that well and at predecessor well AMW-5. The third quarter 2010 concentration of sodium at AMW-5R(78.8 mg/L) is comparable to historical concentrations observed at that well. The third quarter 2010 field specific conductance value at AMW-1 (1,331 umhos/cm) is comparable to historical values observed at that well. The third quarter 2010 field specific conductance value at AMW-5R (1,273 umhos/cm) is comparable to historical values observed at that well and at predecessor well AMW-5. The third quarter 2010 concentration of strontium at AMW-18 (0.919 mg/L)is comparable to concentrations observed at that well since August 2004. The third quarter 2010 concentration of sulfate at AMW-5R (82.5 mg/L) is comparable to historical concentrations observed at that well and at predecessor well AMW-5, and is well below the National Secondary Drinking Water Standard (250 mg/L). The third quarter 2010 concentration of sulfate at AMW-10 (54.6 mg/L) is comparable to historical concentrations observed at that well, and is well below the National Secondary Drinking Water Standard (250 mg/L). The third quarter 2010 concentration of TDS at AMW-5R (819 mg/L) is comparable to historical concentrations observed at that well. The third quarter 2010 field turbidity value at AMW-5R(228 NTUs) is comparable to historical values observed at that well. The third quarter 4