Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Mercer County
9/11/2007 - 6/20/2022, 232 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 |
214 | 0.0 | 0.0 | 200.5 | 96 | 44.9 | 0 |
E. Coli |
MPN/100 mL |
214 | 0.0 | 0.0 | 200.5 | 14 | 6.5 | 0 |
pH | - |
193 | 7.6 | 5.0 | 9.3 | 21 | 10.9 | 6.5-8.5 |
Total Dissolved Solids |
mg/L | 194 | 275.0 | 20.0 | 1593.0 | 15 | 7.7 | 500 |
Corrosivity Index* |
- |
67 | 0.1 | -3.6 | 0.8 | 40 | 59.7 | - |
Hardness | mg/L | 71 | 79.0 | 0.8 | 667.2 | - | - | - |
Nitrate+Nitrite N |
mg/L | 98 | 0.5 | 0.2 | 12.2 | 4 | 4.1 | 10 |
Chloride | mg/L | 36 | 17.0 | 2.0 | 479.4 | 3 | 8.3 | 250 |
Sulfate | mg/L | 24 | 32.2 | 1.0 | 579.6 | 2 | 8.3 | 250 |
Aluminum | mg/L | 17 | 0.0 | 0.0 | 0.1 | 1 | 5.9 | 0.05-0.2 |
Arsenic | mg/L | 73 | 0.00 | 0.001 | 0.034 | 4 | 5.5 | 0.01 |
Barium | mg/L | 55 | 0.03 | 0.00 | 0.47 | 0 | 0.0 | 2 |
Cadmium | mg/L | 22 | 0.00 | 0.001 | 0.002 | 0 | 0.0 | 0.005 |
Calcium | mg/L | 65 | 20.97 | 0.25 | 113.41 | - | - | - |
Chromium | mg/L | 22 | 0.0 | 0.001 | 0.005 | 0 | 0.0 | 0.1 |
Copper | mg/L | 102 | 0.01 | 0.01 | 0.47 | 0 | 0.0 | 1.0,1.3 |
Iron | mg/L | 72 | 0.1 | 0.0 | 8.8 | 23 | 31.9 | 0.3 |
Lead-1st draw |
mg/L | 44 | 0.00 | 0.003 | 0.028 | 2 | 4.5 | 0.015 |
Lead-Running | mg/L | 76 | 0.003 | 0.003 | 0.021 | 2 | 2.6 | 0.015 |
Magnesium | mg/L | 62 | 5.16 | 0.05 | 27.51 | - | - | - |
Manganese | mg/L | 77 | 0.01 | 0.01 | 6.46 | 25 | 32.5 | 0.05 |
Mercury | mg/L | 24 | 0.00 | 0.000 | 0.114 | 5 | 20.8 | 0.002 |
Nickel | mg/L | 19 | 0.01 | 0.005 | 0.011 | - | - | - |
Sodium | mg/L | 5 | 0.01 | 0.01 | 0.09 | - | - | - |
Zinc | mg/L | 23 | 0.01 | 0.00 | 0.45 | 0 | 0.0 | 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