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Forest

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

Forest County

8/17/2011 - 6/11/2018, 59 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
59 12.4 0.0 200.5 37 62.7 0
E.
Coli
MPN/100
mL
59 0.0 0.0 200.5 16 27.1 0
pH
-
57 6.5 5.0 8.9 31 54.4 6.5-8.5
Total
Dissolved
Solids
mg/L 57 108.0 20.0 1507.0 2 3.5 500
Corrosivity
Index*

-
47 -3.2 -5.5 0.7 38 80.9 -
Hardness mg/L 47 25.3 0.8 161.5 - - -
Nitrate+Nitrite
N
mg/L 49 0.2 0.2 11.1 1 2.0 10
Chloride mg/L 5 22.7 2.0 850.3 2 40.0 250
Sulfate mg/L 0 - - - - - 250
Aluminum mg/L 0 - - - - - 0.05-0.2
Arsenic mg/L 49 0.00 0.003 0.004 0 0.0 0.01
Barium mg/L 47 0.04 0.00 1.37 0 0.0 2
Cadmium mg/L 0 - - - - - 0.005
Calcium mg/L 47 5.41 0.25 48.52 - - -
Chromium mg/L 0 - - - - - 0.1
Copper mg/L 47 0.17 0.01 4.31 6 12.8 1.0,1.3
Iron mg/L 47 0.0 0.0 1.2 4 8.5 0.3
Lead-1st
draw
mg/L 2 0.03 0.025 0.030 2 100.0 0.015
Lead-Running mg/L 46 0.005 0.003 0.171 5 10.9 0.015
Magnesium mg/L 2 4.05 2.79 5.31 - - -
Manganese mg/L 47 2.29 0.05 11.21 33 70.2 0.05
Mercury mg/L 1 0.10 0.100 0.100 1 100.0 0.002
Nickel mg/L 0 - - - - - -
Sodium mg/L 1 0.05 0.05 0.05 - - -
Zinc mg/L 45 0.00 0.00 0.02 0 0.0 5

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