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

Lancaster County

8/15/2007 - 6/24/2022, 375 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
355 0.0 0.0 200.5 134 37.7 0
E.
Coli
MPN/100
mL
355 0.0 0.0 200.5 32 9.0 0
pH
-
342 7.4 4.9 9.6 67 19.6 6.5-8.5
Total
Dissolved
Solids
mg/L 341 273.0 20.0 2437.0 33 9.7 500
Corrosivity
Index*

-
131 -1.2 -5.8 0.8 91 69.5 -
Hardness mg/L 141 100.9 0.8 721.5 - - -
Nitrate+Nitrite
N
mg/L 244 5.8 0.2 25.8 60 24.6 10
Chloride mg/L 16 33.4 1.0 48.3 0 0.0 250
Sulfate mg/L 13 14.2 1.8 169.3 0 0.0 250
Aluminum mg/L 4 0.0 0.0 0.0 0 0.0 0.05-0.2
Arsenic mg/L 75 0.00 0.001 0.005 0 0.0 0.01
Barium mg/L 63 0.02 0.00 0.76 0 0.0 2
Cadmium mg/L 16 0.00 0.001 0.002 0 0.0 0.005
Calcium mg/L 129 26.41 0.25 261.72 - - -
Chromium mg/L 16 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 148 0.01 0.01 1.95 1 0.7 1.0,1.3
Iron mg/L 97 0.1 0.0 4.0 9 9.3 0.3
Lead-1st
draw
mg/L 89 0.00 0.003 0.121 15 16.9 0.015
Lead-Running mg/L 107 0.003 0.003 0.162 4 3.7 0.015
Magnesium mg/L 119 5.98 0.05 66.39 - - -
Manganese mg/L 86 0.01 0.01 52.86 22 25.6 0.05
Mercury mg/L 29 0.00 0.000 0.231 10 34.5 0.002
Nickel mg/L 15 0.01 0.005 0.010 - - -
Sodium mg/L 10 0.01 0.01 0.33 - - -
Zinc mg/L 22 0.01 0.00 0.23 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