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Clearfield

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

Clearfield County

5/19/2008 - 3/9/2018, 39 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
35 118.4 0.0 200.5 26 74.3 0
E.
Coli
MPN/100
mL
35 0.0 0.0 118.4 12 34.3 0
pH
-
33 6.9 4.6 8.9 12 36.4 6.5-8.5
Total
Dissolved
Solids
mg/L 33 124.0 20.0 646.0 2 6.1 500
Corrosivity
Index*

-
8 -0.9 -3.8 0.3 4 50.0 -
Hardness mg/L 8 34.4 0.8 100.8 - - -
Nitrate+Nitrite
N
mg/L 7 0.5 0.2 10.3 1 14.3 10
Chloride mg/L 8 2.2 2.0 38.3 0 0.0 250
Sulfate mg/L 8 38.3 11.5 268.8 1 12.5 250
Aluminum mg/L 9 0.0 0.0 2.2 3 33.3 0.05-0.2
Arsenic mg/L 5 0.00 0.003 0.003 0 0.0 0.01
Barium mg/L 11 0.05 0.00 0.67 0 0.0 2
Cadmium mg/L 2 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 8 7.78 0.25 33.90 - - -
Chromium mg/L 2 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 9 0.16 0.01 1.50 1 11.1 1.0,1.3
Iron mg/L 10 0.1 0.0 0.4 1 10.0 0.3
Lead-1st
draw
mg/L 4 0.00 0.003 0.024 1 25.0 0.015
Lead-Running mg/L 10 0.005 0.003 0.014 0 0.0 0.015
Magnesium mg/L 4 3.75 0.05 6.10 - - -
Manganese mg/L 13 0.19 0.01 2.93 8 61.5 0.05
Mercury mg/L 7 0.10 0.001 5.558 4 57.1 0.002
Nickel mg/L 2 0.02 0.006 0.028 - - -
Sodium mg/L 6 0.01 0.01 0.25 - - -
Zinc mg/L 4 0.02 0.00 0.13 0 0.0 5

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