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

Clearfield County

5/19/2008 - 6/21/2021, 78 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
72 20.0 0.0 200.5 47 65.3 0
E.
Coli
MPN/100
mL
72 0.0 0.0 144.5 23 31.9 0
pH
-
67 6.8 4.6 8.9 27 40.3 6.5-8.5
Total
Dissolved
Solids
mg/L 52 110.0 20.0 1572.0 4 7.7 500
Corrosivity
Index*

-
18 -1.7 -5.2 0.4 13 72.2 -
Hardness mg/L 18 29.8 0.8 911.2 - - -
Nitrate+Nitrite
N
mg/L 27 0.5 0.2 13.4 2 7.4 10
Chloride mg/L 11 2.4 1.0 38.3 0 0.0 250
Sulfate mg/L 12 29.2 1.0 268.8 1 8.3 250
Aluminum mg/L 11 0.0 0.0 2.2 5 45.5 0.05-0.2
Arsenic mg/L 24 0.00 0.003 0.003 0 0.0 0.01
Barium mg/L 16 0.05 0.00 0.67 0 0.0 2
Cadmium mg/L 4 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 18 7.39 0.25 178.85 - - -
Chromium mg/L 4 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 22 0.01 0.01 0.18 0 0.0 1.0,1.3
Iron mg/L 19 0.1 0.1 93.8 5 26.3 0.3
Lead-1st
draw
mg/L 27 0.00 0.003 0.024 1 3.7 0.015
Lead-Running mg/L 17 0.003 0.003 0.044 1 5.9 0.015
Magnesium mg/L 18 2.98 0.05 112.83 - - -
Manganese mg/L 40 0.01 0.01 19.88 13 32.5 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 0.028 - - -
Sodium mg/L 0 - - - - - -
Zinc mg/L 4 0.03 0.01 0.13 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 Srvcs Lab
University Park, PA 16802
Directions

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

Ag Analytical Services Lab

Address

111 Ag Analytical Srvcs Lab
University Park, PA 16802
Directions

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