Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Erie County
6/2/2008 - 6/20/2022, 123 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 |
117 | 1.0 | 0.0 | 200.5 | 65 | 55.6 | 0 |
E. Coli |
MPN/100 mL |
117 | 0.0 | 0.0 | 65.9 | 9 | 7.7 | 0 |
pH | - |
117 | 7.8 | 6.0 | 8.6 | 3 | 2.6 | 6.5-8.5 |
Total Dissolved Solids |
mg/L | 116 | 232.5 | 39.0 | 1185.0 | 8 | 6.9 | 500 |
Corrosivity Index* |
- |
86 | 0.1 | -2.7 | 0.8 | 50 | 58.1 | - |
Hardness | mg/L | 88 | 113.2 | 0.8 | 630.5 | - | - | - |
Nitrate+Nitrite N |
mg/L | 60 | 0.2 | 0.2 | 7.3 | 0 | 0.0 | 10 |
Chloride | mg/L | 6 | 58.3 | 2.0 | 429.9 | 1 | 16.7 | 250 |
Sulfate | mg/L | 5 | 10.0 | 1.0 | 17.7 | 0 | 0.0 | 250 |
Aluminum | mg/L | 1 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.05-0.2 |
Arsenic | mg/L | 59 | 0.00 | 0.003 | 0.027 | 8 | 13.6 | 0.01 |
Barium | mg/L | 53 | 0.06 | 0.00 | 0.74 | 0 | 0.0 | 2 |
Cadmium | mg/L | 3 | 0.00 | 0.001 | 0.001 | 0 | 0.0 | 0.005 |
Calcium | mg/L | 85 | 33.11 | 0.25 | 173.69 | - | - | - |
Chromium | mg/L | 3 | 0.0 | 0.001 | 0.005 | 0 | 0.0 | 0.1 |
Copper | mg/L | 94 | 0.01 | 0.01 | 1.53 | 1 | 1.1 | 1.0,1.3 |
Iron | mg/L | 46 | 0.2 | 0.1 | 5.1 | 16 | 34.8 | 0.3 |
Lead-1st draw |
mg/L | 72 | 0.00 | 0.003 | 0.046 | 5 | 6.9 | 0.015 |
Lead-Running | mg/L | 69 | 0.003 | 0.003 | 0.018 | 1 | 1.4 | 0.015 |
Magnesium | mg/L | 85 | 7.99 | 0.05 | 47.78 | - | - | - |
Manganese | mg/L | 45 | 0.02 | 0.01 | 0.55 | 15 | 33.3 | 0.05 |
Mercury | mg/L | 5 | 0.00 | 0.001 | 0.001 | 0 | 0.0 | 0.002 |
Nickel | mg/L | 3 | 0.01 | 0.005 | 0.006 | - | - | - |
Sodium | mg/L | 0 | - | - | - | - | - | - |
Zinc | mg/L | 3 | 0.01 | 0.01 | 0.02 | 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