Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Pennsylvania
1/4/2007 - 6/30/2020, 13,149 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 |
12256 | 0.0 | 0.0 | 2419.6 | 5698 | 46.5 | 0 |
E. Coli |
MPN/100 mL |
12256 | 0.0 | 0.0 | 1046.2 | 1462 | 11.9 | 0 |
pH | - |
10409 | 7.5 | 2.7 | 11.1 | 1455 | 14.0 | 6.5-8.5 |
Total Dissolved Solids |
mg/L | 10346 | 188.0 | 10.0 | 9220.0 | 601 | 5.8 | 500 |
Corrosivity Index* |
- |
4485 | -0.6 | -7.6 | 3.1 | 2964 | 66.1 | - |
Hardness | mg/L | 4714 | 87.9 | 0.8 | 1823.6 | - | - | - |
Nitrate+Nitrite N |
mg/L | 4248 | 0.9 | 0.2 | 217.7 | 188 | 4.4 | 10 |
Chloride | mg/L | 1698 | 7.4 | 1.0 | 2361.2 | 36 | 2.1 | 250 |
Sulfate | mg/L | 632 | 15.7 | 1.0 | 1422.4 | 29 | 4.6 | 250 |
Aluminum | mg/L | 425 | 0.0 | 0.0 | 31.4 | 75 | 17.6 | 0.05-0.2 |
Arsenic | mg/L | 2662 | 0.00 | 0.001 | 0.354 | 164 | 6.2 | 0.01 |
Barium | mg/L | 3020 | 0.06 | 0.00 | 11.54 | 11 | 0.4 | 2 |
Cadmium | mg/L | 881 | 0.00 | 0.001 | 0.043 | 4 | 0.5 | 0.005 |
Calcium | mg/L | 4297 | 22.33 | 0.25 | 540.35 | - | - | - |
Chromium | mg/L | 881 | 0.0 | 0.001 | 0.013 | 0 | 0.0 | 0.1 |
Copper | mg/L | 5154 | 0.02 | 0.01 | 68.72 | 50 | 1.0 | 1.0,1.3 |
Iron | mg/L | 4171 | 0.1 | 0.1 | 225.3 | 721 | 17.3 | 0.3 |
Lead-1st draw |
mg/L | 2658 | 0.00 | 0.003 | 0.823 | 321 | 12.1 | 0.015 |
Lead-Running | mg/L | 3497 | 0.003 | 0.003 | 4.590 | 106 | 3.0 | 0.015 |
Magnesium | mg/L | 4295 | 5.56 | 0.05 | 159.98 | - | - | - |
Manganese | mg/L | 4125 | 0.01 | 0.01 | 60.68 | 923 | 22.4 | 0.05 |
Mercury | mg/L | 1015 | 0.00 | 0.000 | 0.002 | 0 | 0.0 | 0.002 |
Nickel | mg/L | 883 | 0.01 | 0.003 | 0.115 | - | - | - |
Sodium | mg/L | 117 | 6.88 | 0.25 | 77.34 | - | - | - |
Zinc | mg/L | 881 | 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
Hours: Monday-Friday, 8:00 AM - 4:30 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540
Ag Analytical Services Lab
Hours: Monday-Friday, 8:00 AM - 4:30 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540