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

Somerset County

8/20/2007 - 5/27/2021, 62 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
61 0.0 0.0 200.5 30 49.2 0
E.
Coli
MPN/100
mL
61 0.0 0.0 8.7 7 11.5 0
pH
-
56 7.6 4.8 8.3 10 17.9 6.5-8.5
Total
Dissolved
Solids
mg/L 56 149.5 20.0 829.0 1 1.8 500
Corrosivity
Index*

-
15 -0.0 -3.6 0.4 6 40.0 -
Hardness mg/L 16 90.2 12.4 264.2 - - -
Nitrate+Nitrite
N
mg/L 12 0.5 0.2 13.1 1 8.3 10
Chloride mg/L 6 5.0 2.0 34.6 0 0.0 250
Sulfate mg/L 6 10.2 3.0 74.0 0 0.0 250
Aluminum mg/L 6 0.0 0.0 2.5 2 33.3 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 15 26.41 3.89 81.11 - - -
Chromium mg/L 10 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 26 0.01 0.01 0.73 0 0.0 1.0,1.3
Iron mg/L 18 0.1 0.1 12.2 5 27.8 0.3
Lead-1st
draw
mg/L 13 0.00 0.003 0.062 2 15.4 0.015
Lead-Running mg/L 19 0.003 0.003 0.006 0 0.0 0.015
Magnesium mg/L 15 6.04 0.65 17.92 - - -
Manganese mg/L 19 0.04 0.01 0.38 9 47.4 0.05
Mercury mg/L 11 0.00 0.001 0.001 0 0.0 0.002
Nickel mg/L 10 0.01 0.005 0.011 - - -
Sodium mg/L 0 - - - - - -
Zinc mg/L 10 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