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
Hours: Monday-Friday, 8:00 AM - 4:00 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540
Ag Analytical Services Lab
Hours: Monday-Friday, 8:00 AM - 4:00 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540