Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Tioga County
3/17/2008 - 6/7/2023, 155 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 |
146 | 0.0 | 0.0 | 200.5 | 62 | 42.5 | 0 |
E. Coli |
MPN/100 mL |
146 | 0.0 | 0.0 | 200.5 | 25 | 17.1 | 0 |
pH | - |
140 | 7.7 | 6.2 | 9.2 | 14 | 10.0 | 6.5-8.5 |
Total Dissolved Solids |
mg/L | 114 | 184.0 | 20.0 | 1464.0 | 5 | 4.4 | 500 |
Corrosivity Index* |
- |
38 | 0.0 | -2.4 | 0.9 | 19 | 50.0 | - |
Hardness | mg/L | 46 | 93.8 | 0.8 | 239.0 | - | - | - |
Nitrate+Nitrite N |
mg/L | 68 | 0.5 | 0.2 | 11.4 | 1 | 1.5 | 10 |
Chloride | mg/L | 39 | 5.5 | 1.0 | 789.9 | 1 | 2.6 | 250 |
Sulfate | mg/L | 11 | 16.8 | 3.0 | 58.7 | 0 | 0.0 | 250 |
Aluminum | mg/L | 4 | 0.1 | 0.0 | 0.1 | 2 | 50.0 | 0.05-0.2 |
Arsenic | mg/L | 61 | 0.00 | 0.001 | 0.085 | 5 | 8.2 | 0.01 |
Barium | mg/L | 48 | 0.11 | 0.00 | 2.12 | 1 | 2.1 | 2 |
Cadmium | mg/L | 11 | 0.00 | 0.001 | 0.004 | 0 | 0.0 | 0.005 |
Calcium | mg/L | 43 | 28.68 | 0.25 | 73.02 | - | - | - |
Chromium | mg/L | 11 | 0.0 | 0.001 | 0.005 | 0 | 0.0 | 0.1 |
Copper | mg/L | 49 | 0.01 | 0.00 | 0.22 | 0 | 0.0 | 1.0,1.3 |
Iron | mg/L | 47 | 0.2 | 0.1 | 18.0 | 11 | 23.4 | 0.3 |
Lead-1st draw |
mg/L | 48 | 0.00 | 0.001 | 0.006 | 0 | 0.0 | 0.015 |
Lead-Running | mg/L | 32 | 0.003 | 0.001 | 0.015 | 1 | 3.1 | 0.015 |
Magnesium | mg/L | 43 | 5.58 | 0.05 | 23.75 | - | - | - |
Manganese | mg/L | 72 | 0.01 | 0.01 | 1.78 | 22 | 30.6 | 0.05 |
Mercury | mg/L | 11 | 0.00 | 0.001 | 0.001 | 0 | 0.0 | 0.002 |
Nickel | mg/L | 11 | 0.01 | 0.003 | 0.005 | - | - | - |
Sodium | mg/L | 9 | 18.26 | 0.34 | 368.95 | - | - | - |
Zinc | mg/L | 11 | 0.01 | 0.005 | 0.05 | 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 - 4:00 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