Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Clarion County
8/29/2007 - 6/7/2023, 84 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 |
81 | 7.5 | 0.0 | 200.5 | 48 | 59.3 | 0 |
E. Coli |
MPN/100 mL |
81 | 0.0 | 0.0 | 200.5 | 25 | 30.9 | 0 |
pH | - |
71 | 6.7 | 3.0 | 11.1 | 33 | 46.5 | 6.5-8.5 |
Total Dissolved Solids |
mg/L | 71 | 119.0 | 20.0 | 1144.0 | 4 | 5.6 | 500 |
Corrosivity Index* |
- |
52 | -2.7 | -7.1 | 3.1 | 48 | 92.3 | - |
Hardness | mg/L | 51 | 23.1 | 0.8 | 418.5 | - | - | - |
Nitrate+Nitrite N |
mg/L | 60 | 0.4 | 0.2 | 9.6 | 0 | 0.0 | 10 |
Chloride | mg/L | 7 | 5.5 | 2.0 | 115.9 | 0 | 0.0 | 250 |
Sulfate | mg/L | 8 | 61.9 | 10.0 | 249.0 | 0 | 0.0 | 250 |
Aluminum | mg/L | 6 | 0.1 | 0.0 | 9.6 | 3 | 50.0 | 0.05-0.2 |
Arsenic | mg/L | 54 | 0.00 | 0.001 | 0.005 | 0 | 0.0 | 0.01 |
Barium | mg/L | 49 | 0.04 | 0.00 | 0.44 | 0 | 0.0 | 2 |
Cadmium | mg/L | 3 | 0.00 | 0.001 | 0.002 | 0 | 0.0 | 0.005 |
Calcium | mg/L | 51 | 5.66 | 0.25 | 109.88 | - | - | - |
Chromium | mg/L | 3 | 0.0 | 0.001 | 0.005 | 0 | 0.0 | 0.1 |
Copper | mg/L | 54 | 0.02 | 0.01 | 1.42 | 1 | 1.9 | 1.0,1.3 |
Iron | mg/L | 10 | 0.3 | 0.1 | 52.3 | 5 | 50.0 | 0.3 |
Lead-1st draw |
mg/L | 53 | 0.00 | 0.003 | 0.186 | 13 | 24.5 | 0.015 |
Lead-Running | mg/L | 50 | 0.003 | 0.003 | 0.019 | 1 | 2.0 | 0.015 |
Magnesium | mg/L | 51 | 1.59 | 0.05 | 35.00 | - | - | - |
Manganese | mg/L | 14 | 0.28 | 0.01 | 4.70 | 10 | 71.4 | 0.05 |
Mercury | mg/L | 4 | 0.00 | 0.000 | 0.001 | 0 | 0.0 | 0.002 |
Nickel | mg/L | 3 | 0.01 | 0.005 | 0.011 | - | - | - |
Sodium | mg/L | 7 | 5.31 | 0.82 | 59.94 | - | - | - |
Zinc | mg/L | 3 | 0.01 | 0.010 | 0.10 | 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