Pennsylvania

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

Pennsylvania

1/4/2007 - 7/18/2024, 22,002 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		 20280 0.0 0.0 2419.6 8994 44.3 0
E.
Coli		 MPN/100
mL		 20280 0.0 0.0 1046.2 2171 10.7 0
pH
-		 16348 7.4 2.7 11.4 2652 16.2 6.5-8.5
Total
Dissolved
Solids		 mg/L 16062 189.0 10.0 9220.0 914 5.7 500
Corrosivity
Index*
-		 6950 -0.7 -7.6 3.1 4613 66.4 -
Hardness mg/L 7440 86.7 0.8 1823.6 - - -
Nitrate+Nitrite
N		 mg/L 7688 0.9 0.2 217.7 329 4.3 10
Chloride mg/L 2511 8.4 1.0 3965.5 57 2.3 250
Sulfate mg/L 1469 14.3 1.0 1636.6 44 3.0 250
Aluminum mg/L 656 0.0 0.0 31.4 114 17.4 0.05-0.2
Arsenic mg/L 4847 0.00 0.001 0.354 272 5.6 0.01
Barium mg/L 4195 0.05 0.00 28.37 17 0.4 2
Cadmium mg/L 1257 0.00 0.001 0.043 4 0.3 0.005
Calcium mg/L 6724 22.06 0.25 540.35 - - -
Chromium mg/L 1257 0.0 0.001 0.050 0 0.0 0.1
Copper mg/L 8089 0.01 0.01 68.72 72 0.9 1.0,1.3
Iron mg/L 6847 0.1 0.1 225.3 1189 17.4 0.3
Lead-1st
draw		 mg/L 5361 0.00 0.003 2.039 489 9.1 0.015
Lead-Running mg/L 5711 0.003 0.003 4.590 183 3.2 0.015
Magnesium mg/L 6722 5.67 0.05 159.98 - - -
Manganese mg/L 6854 0.01 0.01 60.68 1539 22.5 0.05
Mercury mg/L 1308 0.00 0.000 0.002 0 0.0 0.002
Nickel mg/L 1259 0.01 0.003 0.240 - - -
Sodium mg/L 537 13.01 0.25 2039.85 - - -
Zinc mg/L 1257 0.01 0.005 18.70 2 0.2 5

*For corrosivity index, failure criteria based on less than -0.5 or greater than 0.5

Ag Analytical Services Lab

Address

720 Tower Rd
University Park, PA 16802
Directions

Hours: Monday-Friday, 8:00 AM - 4:00 PM

Ag Analytical Services Lab

Address

720 Tower Rd
University Park, PA 16802
Directions

Hours: Monday-Friday, 8:00 AM - 4:00 PM