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

Clarion County

8/29/2007 - 6/10/2019, 28 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
26 15.7 0.0 200.5 17 65.4 0
E.
Coli
MPN/100
mL
26 0.0 0.0 27.1 7 26.9 0
pH
-
25 6.5 5.1 11.1 13 52.0 6.5-8.5
Total
Dissolved
Solids
mg/L 25 91.0 20.0 621.0 1 4.0 500
Corrosivity
Index*

-
13 -2.4 -5.7 3.1 13 100.0 -
Hardness mg/L 13 26.3 0.8 418.5 - - -
Nitrate+Nitrite
N
mg/L 13 0.5 0.2 9.6 0 0.0 10
Chloride mg/L 4 11.0 2.0 115.9 0 0.0 250
Sulfate mg/L 3 199.2 10.0 249.0 0 0.0 250
Aluminum mg/L 3 0.0 0.0 0.2 1 33.3 0.05-0.2
Arsenic mg/L 12 0.00 0.001 0.003 0 0.0 0.01
Barium mg/L 13 0.08 0.00 0.44 0 0.0 2
Cadmium mg/L 3 0.00 0.001 0.002 0 0.0 0.005
Calcium mg/L 13 5.66 0.25 109.88 - - -
Chromium mg/L 3 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 14 0.02 0.01 8.66 1 7.1 1.0,1.3
Iron mg/L 10 0.1 0.0 0.3 2 20.0 0.3
Lead-1st
draw
mg/L 3 0.00 0.003 0.077 1 33.3 0.015
Lead-Running mg/L 12 0.005 0.003 0.186 3 25.0 0.015
Magnesium mg/L 5 0.10 0.05 4.74 - - -
Manganese mg/L 11 1.59 0.01 35.00 8 72.7 0.05
Mercury mg/L 6 1.88 0.000 52.267 3 50.0 0.002
Nickel mg/L 3 0.01 0.005 0.011 - - -
Sodium mg/L 4 1.61 0.31 4.70 - - -
Zinc mg/L 9 0.01 0.00 0.10 0 0.0 5

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

Ag Analytical Services Lab

Address

111 Ag Analytical Services Lab
University Park, PA 16802
Directions

Hours: Monday-Friday, 8:00 AM - 4:30 PM

Ag Analytical Services Lab

Address

111 Ag Analytical Services Lab
University Park, PA 16802
Directions

Hours: Monday-Friday, 8:00 AM - 4:30 PM