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Snyder

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

Snyder County

1/18/2007 - 7/12/2017, 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
79 0.0 0.0 200.5 36 45.6 0
E.
Coli
MPN/100
mL
79 0.0 0.0 165.2 7 8.9 0
pH
-
72 7.7 6.0 10.5 9 12.5 6.5-8.5
Total
Dissolved
Solids
mg/L 72 169.0 27.0 623.0 2 2.8 500
Corrosivity
Index*

-
24 -0.2 -2.0 0.9 12 50.0 -
Hardness mg/L 25 75.1 0.8 284.5 - - -
Nitrate+Nitrite
N
mg/L 23 0.5 0.2 12.3 1 4.3 10
Chloride mg/L 2 28.8 5.0 52.5 0 0.0 250
Sulfate mg/L 4 11.7 4.0 16.5 0 0.0 250
Aluminum mg/L 1 0.0 0.0 0.0 0 0.0 0.05-0.2
Arsenic mg/L 2 0.02 0.003 0.044 1 50.0 0.01
Barium mg/L 1 0.12 0.12 0.12 0 0.0 2
Cadmium mg/L 1 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 23 19.57 0.25 104.85 - - -
Chromium mg/L 1 0.0 0.005 0.005 0 0.0 0.1
Copper mg/L 24 0.01 0.01 0.89 0 0.0 1.0,1.3
Iron mg/L 24 0.1 0.0 4.2 3 12.5 0.3
Lead-1st
draw
mg/L 7 0.00 0.003 0.005 0 0.0 0.015
Lead-Running mg/L 8 0.003 0.003 0.018 1 12.5 0.015
Magnesium mg/L 21 5.78 0.05 15.03 - - -
Manganese mg/L 24 0.01 0.01 5.86 10 41.7 0.05
Mercury mg/L 3 0.05 0.001 0.100 2 66.7 0.002
Nickel mg/L 1 0.01 0.005 0.005 - - -
Sodium mg/L 3 0.06 0.01 1.42 - - -
Zinc mg/L 4 0.00 0.00 0.01 0 0.0 5

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