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Crawford

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

Crawford County

1/2/2008 - 6/1/2018, 80 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
75 0.0 0.0 200.5 37 49.3 0
E.
Coli
MPN/100
mL
75 0.0 0.0 200.5 7 9.3 0
pH
-
70 7.8 6.2 8.6 4 5.7 6.5-8.5
Total
Dissolved
Solids
mg/L 69 214.0 69.0 715.0 2 2.9 500
Corrosivity
Index*

-
26 0.0 -2.0 1.1 20 76.9 -
Hardness mg/L 26 125.0 0.8 385.9 - - -
Nitrate+Nitrite
N
mg/L 27 0.5 0.2 6.8 0 0.0 10
Chloride mg/L 12 14.6 2.1 77.5 0 0.0 250
Sulfate mg/L 3 16.2 13.0 21.9 0 0.0 250
Aluminum mg/L 2 0.0 0.0 0.0 0 0.0 0.05-0.2
Arsenic mg/L 13 0.00 0.003 0.065 3 23.1 0.01
Barium mg/L 13 0.04 0.00 0.52 0 0.0 2
Cadmium mg/L 5 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 25 36.13 0.25 97.55 - - -
Chromium mg/L 5 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 25 0.01 0.01 0.23 0 0.0 1.0,1.3
Iron mg/L 29 0.1 0.0 5.6 10 34.5 0.3
Lead-1st
draw
mg/L 14 0.00 0.003 0.076 2 14.3 0.015
Lead-Running mg/L 16 0.003 0.003 0.004 0 0.0 0.015
Magnesium mg/L 19 11.65 3.34 34.56 - - -
Manganese mg/L 29 0.08 0.01 24.45 17 58.6 0.05
Mercury mg/L 11 0.05 0.001 0.899 6 54.5 0.002
Nickel mg/L 4 0.01 0.005 0.005 - - -
Sodium mg/L 7 0.01 0.01 0.30 - - -
Zinc mg/L 12 0.00 0.00 0.04 0 0.0 5

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