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Lebanon

Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory

Lebanon County

8/9/2007 - 3/2/2018, 85 Samples

Test Parameter Units Number of Samples Tested Median Minimum Maximum Number of samples failing EPA Std Percent of samples failing EPA Std EPA Drink Water Std
Total
Coliform
MPN/100
mL
81 0.0 0.0 200.5 33 40.7 0
E.
Coli
MPN/100
mL
81 0.0 0.0 19.2 8 9.9 0
pH
-
67 7.4 5.5 8.8 6 9.0 6.5-8.5
Total
Dissolved
Solids
mg/L 68 232.5 10.0 906.0 5 7.4 500
Corrosivity
Index*

-
23 -1.0 -2.3 0.4 13 56.5 -
Hardness mg/L 25 76.0 0.8 546.1 - - -
Nitrate+Nitrite
N
mg/L 17 7.2 0.2 18.2 3 17.6 10
Chloride mg/L 3 19.0 8.2 46.2 0 0.0 250
Sulfate mg/L 1 51.9 51.9 51.9 0 0.0 250
Aluminum mg/L 3 0.0 0.0 0.1 0 0.0 0.05-0.2
Arsenic mg/L 14 0.00 0.001 0.005 0 0.0 0.01
Barium mg/L 9 0.07 0.01 0.56 0 0.0 2
Cadmium mg/L 8 0.00 0.001 0.004 0 0.0 0.005
Calcium mg/L 23 16.00 0.25 195.61 - - -
Chromium mg/L 8 0.0 0.005 0.005 0 0.0 0.1
Copper mg/L 30 0.01 0.01 1.40 1 3.3 1.0,1.3
Iron mg/L 23 0.2 0.0 2.0 3 13.0 0.3
Lead-1st
draw
mg/L 11 0.01 0.003 0.026 1 9.1 0.015
Lead-Running mg/L 20 0.004 0.003 0.006 0 0.0 0.015
Magnesium mg/L 19 8.72 0.05 20.12 - - -
Manganese mg/L 25 0.01 0.01 17.80 7 28.0 0.05
Mercury mg/L 11 0.00 0.000 5.141 4 36.4 0.002
Nickel mg/L 8 0.01 0.005 0.005 - - -
Sodium mg/L 4 0.37 0.06 4.83 - - -
Zinc mg/L 9 0.01 0.00 0.02 0 0.0 5

*For corrosivity index, failure criteria based on less than -0.5 or greater than 0.5