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Carbon

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

Carbon County

8/9/2007 - 6/28/2016, 54 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
54 0.0 0.0 200.5 18 33.3 0
E.
Coli
MPN/100
mL
54 0.0 0.0 62.4 4 7.4 0
pH
-
46 6.8 5.2 8.4 17 37.0 6.5-8.5
Total
Dissolved
Solids
mg/L 46 69.5 20.0 524.0 1 2.2 500
Corrosivity
Index*

-
22 -2.4 -5.7 0.7 21 95.5 -
Hardness mg/L 24 21.1 0.8 213.1 - - -
Nitrate+Nitrite
N
mg/L 9 0.5 0.3 1.9 0 0.0 10
Chloride mg/L 1 15.5 15.5 15.5 0 0.0 250
Sulfate mg/L 3 14.7 10.0 22.9 0 0.0 250
Aluminum mg/L 2 0.0 0.0 0.1 0 0.0 0.05-0.2
Arsenic mg/L 8 0.00 0.001 0.003 0 0.0 0.01
Barium mg/L 8 0.01 0.00 0.07 0 0.0 2
Cadmium mg/L 6 0.00 0.001 0.002 0 0.0 0.005
Calcium mg/L 20 4.34 0.25 36.21 - - -
Chromium mg/L 6 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 28 0.07 0.01 1.17 0 0.0 1.0,1.3
Iron mg/L 24 0.1 0.1 0.9 2 8.3 0.3
Lead-1st
draw
mg/L 16 0.01 0.003 0.108 6 37.5 0.015
Lead-Running mg/L 17 0.003 0.003 0.014 0 0.0 0.015
Magnesium mg/L 20 1.63 0.05 33.37 - - -
Manganese mg/L 23 0.01 0.01 0.23 4 17.4 0.05
Mercury mg/L 7 0.00 0.000 0.001 0 0.0 0.002
Nickel mg/L 6 0.01 0.005 0.010 - - -
Sodium mg/L 0 - - - - - -
Zinc mg/L 6 0.01 0.01 0.11 0 0.0 5

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