Share

Crawford

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

Crawford County

1/2/2008 - 5/16/2016, 61 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
56 0.0 0.0 200.5 27 48.2 0
E.
Coli
MPN/100
mL
56 0.0 0.0 56.0 4 7.1 0
pH
-
52 7.8 6.2 8.2 3 5.8 6.5-8.5
Total
Dissolved
Solids
mg/L 51 214.0 69.0 715.0 2 3.9 500
Corrosivity
Index*

-
20 0.5 -2.0 1.1 16 80.0 -
Hardness mg/L 19 143.2 50.1 385.9 - - -
Nitrate+Nitrite
N
mg/L 17 0.5 0.5 6.8 0 0.0 10
Chloride mg/L 9 13.6 2.1 77.5 0 0.0 250
Sulfate mg/L 2 19.0 16.2 21.9 0 0.0 250
Aluminum mg/L 1 0.0 0.0 0.0 0 0.0 0.05-0.2
Arsenic mg/L 11 0.00 0.003 0.065 3 27.3 0.01
Barium mg/L 12 0.04 0.00 0.52 0 0.0 2
Cadmium mg/L 4 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 19 37.48 14.57 97.55 - - -
Chromium mg/L 4 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 23 0.01 0.01 0.23 0 0.0 1.0,1.3
Iron mg/L 21 0.2 0.1 5.6 9 42.9 0.3
Lead-1st
draw
mg/L 13 0.00 0.003 0.076 2 15.4 0.015
Lead-Running mg/L 14 0.003 0.003 0.004 0 0.0 0.015
Magnesium mg/L 19 11.65 3.34 34.56 - - -
Manganese mg/L 23 0.05 0.01 1.33 12 52.2 0.05
Mercury mg/L 5 0.00 0.001 0.001 0 0.0 0.002
Nickel mg/L 4 0.01 0.005 0.005 - - -
Sodium mg/L 0 - - - - - -
Zinc mg/L 4 0.01 0.01 0.04 0 0.0 5

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