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

Lancaster County

8/15/2007 - 7/6/2020, 324 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
310 0.0 0.0 200.5 115 37.1 0
E.
Coli
MPN/100
mL
310 0.0 0.0 200.5 27 8.7 0
pH
-
298 7.4 4.9 9.6 56 18.8 6.5-8.5
Total
Dissolved
Solids
mg/L 299 262.0 20.0 1003.0 28 9.4 500
Corrosivity
Index*

-
111 -1.2 -5.8 0.8 79 71.2 -
Hardness mg/L 118 102.6 0.8 497.8 - - -
Nitrate+Nitrite
N
mg/L 211 6.0 0.2 25.8 54 25.6 10
Chloride mg/L 11 29.1 1.0 48.3 0 0.0 250
Sulfate mg/L 11 12.5 1.8 73.8 0 0.0 250
Aluminum mg/L 3 0.0 0.0 0.0 0 0.0 0.05-0.2
Arsenic mg/L 69 0.00 0.001 0.004 0 0.0 0.01
Barium mg/L 62 0.02 0.00 0.76 0 0.0 2
Cadmium mg/L 15 0.00 0.001 0.002 0 0.0 0.005
Calcium mg/L 110 26.92 0.25 128.64 - - -
Chromium mg/L 15 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 45 0.04 0.01 5.06 3 6.7 1.0,1.3
Iron mg/L 108 0.1 0.0 8.7 18 16.7 0.3
Lead-1st
draw
mg/L 43 0.01 0.003 0.229 10 23.3 0.015
Lead-Running mg/L 33 0.003 0.003 0.162 3 9.1 0.015
Magnesium mg/L 44 0.54 0.05 52.69 - - -
Manganese mg/L 53 0.08 0.00 52.02 28 52.8 0.05
Mercury mg/L 104 0.02 0.000 3.164 96 92.3 0.002
Nickel mg/L 70 5.41 0.005 66.386 - - -
Sodium mg/L 22 0.01 0.01 0.40 - - -
Zinc mg/L 28 0.00 0.00 0.13 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