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

Erie County

6/2/2008 - 6/9/2020, 95 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
90 1.5 0.0 200.5 52 57.8 0
E.
Coli
MPN/100
mL
90 0.0 0.0 45.3 6 6.7 0
pH
-
91 7.8 6.0 8.6 3 3.3 6.5-8.5
Total
Dissolved
Solids
mg/L 90 230.5 39.0 1185.0 6 6.7 500
Corrosivity
Index*

-
68 0.1 -2.2 0.8 40 58.8 -
Hardness mg/L 69 118.2 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 54 0.00 0.003 0.027 8 14.8 0.01
Barium mg/L 52 0.06 0.00 0.74 0 0.0 2
Cadmium mg/L 2 0.00 0.001 0.001 0 0.0 0.005
Calcium mg/L 67 33.35 0.25 173.69 - - -
Chromium mg/L 2 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 67 0.05 0.01 0.95 0 0.0 1.0,1.3
Iron mg/L 69 0.0 0.0 2.1 4 5.8 0.3
Lead-1st
draw
mg/L 10 0.01 0.003 0.550 4 40.0 0.015
Lead-Running mg/L 60 0.003 0.003 0.046 3 5.0 0.015
Magnesium mg/L 13 0.80 0.05 47.78 - - -
Manganese mg/L 65 5.76 0.01 25.05 49 75.4 0.05
Mercury mg/L 20 0.05 0.001 5.059 16 80.0 0.002
Nickel mg/L 6 2.77 0.005 11.435 - - -
Sodium mg/L 11 0.01 0.01 0.25 - - -
Zinc mg/L 51 0.00 0.00 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