York

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

York County

8/9/2007 - 7/6/2022, 555 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		 533 0.0 0.0 2419.6 252 47.3 0
E.
Coli		 MPN/100
mL		 533 0.0 0.0 200.5 47 8.8 0
pH
-		 502 6.7 4.7 9.8 201 40.0 6.5-8.5
Total
Dissolved
Solids		 mg/L 502 142.0 20.0 1020.0 8 1.6 500
Corrosivity
Index*
-		 213 -1.8 -5.4 0.8 167 78.4 -
Hardness mg/L 232 69.2 0.8 459.7 - - -
Nitrate+Nitrite
N		 mg/L 269 4.6 0.2 33.1 27 10.0 10
Chloride mg/L 15 10.5 5.0 320.0 1 6.7 250
Sulfate mg/L 16 12.9 3.9 35.0 0 0.0 250
Aluminum mg/L 10 0.0 0.0 0.1 1 10.0 0.05-0.2
Arsenic mg/L 108 0.00 0.001 0.013 1 0.9 0.01
Barium mg/L 62 0.04 0.00 0.60 0 0.0 2
Cadmium mg/L 39 0.00 0.001 0.002 0 0.0 0.005
Calcium mg/L 213 15.62 0.25 135.71 - - -
Chromium mg/L 39 0.0 0.001 0.005 0 0.0 0.1
Copper mg/L 257 0.03 0.01 7.72 3 1.2 1.0,1.3
Iron mg/L 211 0.1 0.1 25.0 23 10.9 0.3
Lead-1st
draw		 mg/L 128 0.00 0.003 0.201 28 21.9 0.015
Lead-Running mg/L 183 0.003 0.003 0.844 11 6.0 0.015
Magnesium mg/L 213 5.82 0.05 45.59 - - -
Manganese mg/L 209 0.01 0.01 3.92 35 16.7 0.05
Mercury mg/L 52 0.00 0.000 0.001 0 0.0 0.002
Nickel mg/L 39 0.01 0.005 0.229 - - -
Sodium mg/L 0 - - - - - -
Zinc mg/L 39 0.03 0.01 0.22 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