Pennsylvania

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

Pennsylvania

12/19/2001 - 6/30/2023, 19,894 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		 18200 0.0 0.0 200.5 8027 44.1 0
E.
Coli		 MPN/100
mL		 18200 0.0 0.0 200.5 1972 10.8 0
pH
-		 15194 7.5 2.7 11.4 2356 15.5 6.5-8.5
Total
Dissolved
Solids		 mg/L 14945 189.0 10.0 9220.0 839 5.6 500
Corrosivity
Index*
-		 6333 -0.7 -10.2 3.1 4210 66.5 -
Hardness mg/L 7027 88.2 0.8 1823.6 - - -
Nitrate+Nitrite
N		 mg/L 6194 0.8 0.2 73.4 262 4.2 10
Chloride mg/L 2415 7.4 1.0 2361.2 50 2.1 250
Sulfate mg/L 1353 14.7 0.1 1636.6 41 3.0 250
Aluminum mg/L 582 0.0 0.0 31.4 97 16.7 0.05-0.2
Arsenic mg/L 4162 0.00 0.001 0.354 243 5.8 0.01
Barium mg/L 4069 0.06 0.00 13.12 18 0.4 2
Cadmium mg/L 1208 0.00 0.001 0.043 4 0.3 0.005
Calcium mg/L 6093 22.32 0.25 540.35 - - -
Chromium mg/L 1208 0.0 0.001 0.050 0 0.0 0.1
Copper mg/L 7332 0.01 0.00 68.72 63 0.9 1.0,1.3
Iron mg/L 6377 0.1 0.1 225.3 1117 17.5 0.3
Lead-1st
draw		 mg/L 4562 0.00 0.001 2.039 435 9.5 0.015
Lead-Running mg/L 5101 0.003 0.001 4.590 166 3.3 0.015
Magnesium mg/L 6093 5.74 0.05 159.98 - - -
Manganese mg/L 6441 0.01 0.01 60.68 1447 22.5 0.05
Mercury mg/L 1385 0.00 0.000 0.002 0 0.0 0.002
Nickel mg/L 1208 0.01 0.003 0.240 - - -
Sodium mg/L 513 10.66 0.24 368.95 - - -
Zinc mg/L 1208 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

111 Ag Analytical Srvcs Lab
University Park, PA 16802
Directions

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

Ag Analytical Services Lab

Address

111 Ag Analytical Srvcs Lab
University Park, PA 16802
Directions

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