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

Lawrence County

12/12/2007 - 4/21/2020, 47 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
45 0.0 0.0 200.5 19 42.2 0
E.
Coli
MPN/100
mL
45 0.0 0.0 200.5 6 13.3 0
pH
-
42 7.6 6.5 8.4 1 2.4 6.5-8.5
Total
Dissolved
Solids
mg/L 42 340.0 142.0 883.0 8 19.0 500
Corrosivity
Index*

-
16 -0.3 -2.2 1.0 10 62.5 -
Hardness mg/L 16 218.2 0.8 693.0 - - -
Nitrate+Nitrite
N
mg/L 10 0.5 0.2 10.3 1 10.0 10
Chloride mg/L 10 10.4 5.0 77.0 0 0.0 250
Sulfate mg/L 2 55.6 30.5 80.7 0 0.0 250
Aluminum mg/L 3 0.1 0.0 0.1 1 33.3 0.05-0.2
Arsenic mg/L 13 0.00 0.001 0.005 0 0.0 0.01
Barium mg/L 16 0.05 0.00 0.17 0 0.0 2
Cadmium mg/L 5 0.00 0.001 0.002 0 0.0 0.005
Calcium mg/L 16 68.87 0.25 192.02 - - -
Chromium mg/L 5 0.0 0.005 0.005 0 0.0 0.1
Copper mg/L 21 0.01 0.01 0.13 0 0.0 1.0,1.3
Iron mg/L 14 0.1 0.1 3.8 4 28.6 0.3
Lead-1st
draw
mg/L 10 0.00 0.003 0.036 2 20.0 0.015
Lead-Running mg/L 16 0.003 0.003 0.006 0 0.0 0.015
Magnesium mg/L 16 11.01 0.05 52.21 - - -
Manganese mg/L 15 0.03 0.01 1.46 7 46.7 0.05
Mercury mg/L 5 0.00 0.000 0.001 0 0.0 0.002
Nickel mg/L 5 0.01 0.005 0.009 - - -
Sodium mg/L 0 - - - - - -
Zinc mg/L 5 0.01 0.01 0.07 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