Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Mifflin County
12/4/2007 - 6/28/2023, 393 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 |
366 | 0.0 | 0.0 | 200.5 | 148 | 40.4 | 0 |
E. Coli |
MPN/100 mL |
366 | 0.0 | 0.0 | 200.5 | 35 | 9.6 | 0 |
pH | - |
130 | 7.5 | 5.5 | 8.5 | 14 | 10.8 | 6.5-8.5 |
Total Dissolved Solids |
mg/L | 133 | 217.0 | 20.0 | 2426.0 | 11 | 8.3 | 500 |
Corrosivity Index* |
- |
63 | 0.0 | -4.5 | 1.0 | 42 | 66.7 | - |
Hardness | mg/L | 76 | 102.0 | 0.8 | 1794.9 | - | - | - |
Nitrate+Nitrite N |
mg/L | 89 | 0.7 | 0.2 | 12.9 | 4 | 4.5 | 10 |
Chloride | mg/L | 6 | 6.2 | 3.0 | 224.9 | 0 | 0.0 | 250 |
Sulfate | mg/L | 15 | 14.4 | 1.0 | 1500.9 | 1 | 6.7 | 250 |
Aluminum | mg/L | 3 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.05-0.2 |
Arsenic | mg/L | 22 | 0.00 | 0.003 | 0.036 | 3 | 13.6 | 0.01 |
Barium | mg/L | 14 | 0.04 | 0.00 | 0.20 | 0 | 0.0 | 2 |
Cadmium | mg/L | 11 | 0.00 | 0.001 | 0.001 | 0 | 0.0 | 0.005 |
Calcium | mg/L | 61 | 29.58 | 0.25 | 518.70 | - | - | - |
Chromium | mg/L | 11 | 0.0 | 0.003 | 0.005 | 0 | 0.0 | 0.1 |
Copper | mg/L | 73 | 0.01 | 0.01 | 3.30 | 1 | 1.4 | 1.0,1.3 |
Iron | mg/L | 75 | 0.2 | 0.1 | 17.3 | 26 | 34.7 | 0.3 |
Lead-1st draw |
mg/L | 31 | 0.00 | 0.003 | 0.055 | 2 | 6.5 | 0.015 |
Lead-Running | mg/L | 73 | 0.003 | 0.003 | 0.164 | 2 | 2.7 | 0.015 |
Magnesium | mg/L | 61 | 7.40 | 0.05 | 121.34 | - | - | - |
Manganese | mg/L | 67 | 0.01 | 0.01 | 0.80 | 19 | 28.4 | 0.05 |
Mercury | mg/L | 12 | 0.00 | 0.001 | 0.001 | 0 | 0.0 | 0.002 |
Nickel | mg/L | 11 | 0.01 | 0.005 | 0.012 | - | - | - |
Sodium | mg/L | 0 | - | - | - | - | - | - |
Zinc | mg/L | 11 | 0.01 | 0.005 | 0.16 | 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