Pennsylvania

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

Pennsylvania

1/4/2007 - 7/12/2022, 17,050 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		 15946 0.0 0.0 2419.6 7192 45.1 0
E.
Coli		 MPN/100
mL		 15946 0.0 0.0 1046.2 1814 11.4 0
pH
-		 13232 7.5 2.7 11.4 1945 14.7 6.5-8.5
Total
Dissolved
Solids		 mg/L 13010 189.0 10.0 9220.0 733 5.6 500
Corrosivity
Index*
-		 5671 -0.6 -7.6 3.1 3715 65.5 -
Hardness mg/L 5983 88.1 0.8 1823.6 - - -
Nitrate+Nitrite
N		 mg/L 5600 0.9 0.2 217.7 230 4.1 10
Chloride mg/L 1863 7.5 1.0 2361.2 41 2.2 250
Sulfate mg/L 807 15.0 1.0 1636.6 34 4.2 250
Aluminum mg/L 504 0.0 0.0 31.4 88 17.5 0.05-0.2
Arsenic mg/L 3525 0.00 0.001 0.354 212 6.0 0.01
Barium mg/L 3479 0.05 0.00 13.12 14 0.4 2
Cadmium mg/L 1095 0.00 0.001 0.043 4 0.4 0.005
Calcium mg/L 5459 22.30 0.25 540.35 - - -
Chromium mg/L 1095 0.0 0.001 0.050 0 0.0 0.1
Copper mg/L 6562 0.02 0.01 68.72 57 0.9 1.0,1.3
Iron mg/L 5326 0.1 0.1 225.3 934 17.5 0.3
Lead-1st
draw		 mg/L 3744 0.00 0.003 0.823 378 10.1 0.015
Lead-Running mg/L 4534 0.003 0.003 4.590 142 3.1 0.015
Magnesium mg/L 5457 5.72 0.05 159.98 - - -
Manganese mg/L 5425 0.01 0.01 60.68 1215 22.4 0.05
Mercury mg/L 1280 0.00 0.000 0.002 0 0.0 0.002
Nickel mg/L 1097 0.01 0.003 0.240 - - -
Sodium mg/L 117 6.88 0.25 77.34 - - -
Zinc mg/L 1095 0.01 0.01 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

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