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Montour

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

Montour County

10/4/2007 - 6/20/2017, 29 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
27 0.0 0.0 200.5 12 44.4 0
E.
Coli
MPN/100
mL
27 0.0 0.0 8.7 2 7.4 0
pH
-
20 7.9 6.8 8.7 3 15.0 6.5-8.5
Total
Dissolved
Solids
mg/L 20 243.3 51.0 1011.0 1 5.0 500
Corrosivity
Index*

-
9 0.3 -1.5 0.6 4 44.4 -
Hardness mg/L 10 63.0 3.3 201.5 - - -
Nitrate+Nitrite
N
mg/L 5 1.5 0.5 4.4 0 0.0 10
Chloride mg/L 0 - - - - - 250
Sulfate mg/L 1 30.8 30.8 30.8 0 0.0 250
Aluminum mg/L 0 - - - - - 0.05-0.2
Arsenic mg/L 2 0.00 0.003 0.003 0 0.0 0.01
Barium mg/L 2 0.06 0.06 0.07 0 0.0 2
Cadmium mg/L 1 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 9 21.63 1.04 62.10 - - -
Chromium mg/L 1 0.0 0.005 0.005 0 0.0 0.1
Copper mg/L 9 0.01 0.01 2.14 1 11.1 1.0,1.3
Iron mg/L 9 0.1 0.0 0.2 0 0.0 0.3
Lead-1st
draw
mg/L 3 0.01 0.003 0.006 0 0.0 0.015
Lead-Running mg/L 5 0.006 0.003 0.083 2 40.0 0.015
Magnesium mg/L 6 6.31 0.18 11.77 - - -
Manganese mg/L 9 0.15 0.01 14.09 6 66.7 0.05
Mercury mg/L 4 0.06 0.001 0.480 3 75.0 0.002
Nickel mg/L 1 0.01 0.005 0.005 - - -
Sodium mg/L 3 0.11 0.11 0.15 - - -
Zinc mg/L 4 0.01 0.00 0.03 0 0.0 5

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