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

Somerset County

8/20/2007 - 6/7/2022, 72 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
71 0.0 0.0 200.5 34 47.9 0
E.
Coli
MPN/100
mL
71 0.0 0.0 8.7 8 11.3 0
pH
-
66 7.6 4.8 9.2 12 18.2 6.5-8.5
Total
Dissolved
Solids
mg/L 66 158.5 20.0 829.0 1 1.5 500
Corrosivity
Index*

-
20 0.1 -3.6 0.4 6 30.0 -
Hardness mg/L 22 98.0 4.3 321.3 - - -
Nitrate+Nitrite
N
mg/L 15 0.5 0.2 13.1 1 6.7 10
Chloride mg/L 6 5.0 2.0 34.6 0 0.0 250
Sulfate mg/L 8 9.1 1.0 74.0 0 0.0 250
Aluminum mg/L 7 0.0 0.0 2.5 2 28.6 0.05-0.2
Arsenic mg/L 12 0.00 0.003 0.017 2 16.7 0.01
Barium mg/L 14 0.05 0.00 0.30 0 0.0 2
Cadmium mg/L 10 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 20 27.91 1.19 90.80 - - -
Chromium mg/L 10 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 27 0.01 0.01 0.73 0 0.0 1.0,1.3
Iron mg/L 23 0.1 0.0 12.2 5 21.7 0.3
Lead-1st
draw
mg/L 13 0.00 0.003 0.062 2 15.4 0.015
Lead-Running mg/L 20 0.003 0.003 0.215 1 5.0 0.015
Magnesium mg/L 15 6.04 0.65 17.92 - - -
Manganese mg/L 24 0.07 0.01 22.96 14 58.3 0.05
Mercury mg/L 17 0.00 0.001 6.907 6 35.3 0.002
Nickel mg/L 10 0.01 0.005 0.011 - - -
Sodium mg/L 7 0.03 0.01 0.20 - - -
Zinc mg/L 11 0.01 0.01 0.06 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