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

Erie County

6/2/2008 - 6/9/2020, 96 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
91 2.0 0.0 200.5 53 58.2 0
E.
Coli
MPN/100
mL
91 0.0 0.0 45.3 6 6.6 0
pH
-
92 7.8 6.0 8.6 3 3.3 6.5-8.5
Total
Dissolved
Solids
mg/L 91 231.0 39.0 1185.0 6 6.6 500
Corrosivity
Index*

-
68 0.1 -2.2 0.8 40 58.8 -
Hardness mg/L 70 116.4 0.8 630.5 - - -
Nitrate+Nitrite
N
mg/L 55 0.2 0.2 7.3 0 0.0 10
Chloride mg/L 6 58.3 2.0 429.9 1 16.7 250
Sulfate mg/L 3 10.0 10.0 17.7 0 0.0 250
Aluminum mg/L 1 0.0 0.0 0.0 0 0.0 0.05-0.2
Arsenic mg/L 55 0.00 0.003 0.027 8 14.5 0.01
Barium mg/L 53 0.06 0.00 0.74 0 0.0 2
Cadmium mg/L 3 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 67 33.35 0.25 173.69 - - -
Chromium mg/L 3 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 75 0.01 0.01 0.36 0 0.0 1.0,1.3
Iron mg/L 28 0.2 0.1 5.1 9 32.1 0.3
Lead-1st
draw
mg/L 61 0.00 0.003 0.046 4 6.6 0.015
Lead-Running mg/L 58 0.003 0.003 0.006 0 0.0 0.015
Magnesium mg/L 67 8.25 0.05 47.78 - - -
Manganese mg/L 26 0.02 0.01 0.55 9 34.6 0.05
Mercury mg/L 5 0.00 0.001 0.001 0 0.0 0.002
Nickel mg/L 3 0.01 0.005 0.006 - - -
Sodium mg/L 0 - - - - - -
Zinc mg/L 3 0.01 0.01 0.02 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