Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Lawrence County
12/12/2007 - 4/18/2024, 83 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 |
80 | 0.0 | 0.0 | 200.5 | 27 | 33.8 | 0 |
E. Coli |
MPN/100 mL |
80 | 0.0 | 0.0 | 200.5 | 7 | 8.8 | 0 |
pH | - |
63 | 7.4 | 6.5 | 8.4 | 2 | 3.2 | 6.5-8.5 |
Total Dissolved Solids |
mg/L | 63 | 322.0 | 87.0 | 1474.0 | 9 | 14.3 | 500 |
Corrosivity Index* |
- |
27 | -0.2 | -3.0 | 1.0 | 15 | 55.6 | - |
Hardness | mg/L | 28 | 136.3 | 0.8 | 912.9 | - | - | - |
Nitrate+Nitrite N |
mg/L | 29 | 0.2 | 0.2 | 11.0 | 2 | 6.9 | 10 |
Chloride | mg/L | 10 | 10.4 | 5.0 | 77.0 | 0 | 0.0 | 250 |
Sulfate | mg/L | 4 | 83.6 | 30.5 | 852.7 | 1 | 25.0 | 250 |
Aluminum | mg/L | 5 | 0.0 | 0.0 | 0.1 | 1 | 20.0 | 0.05-0.2 |
Arsenic | mg/L | 28 | 0.00 | 0.001 | 0.006 | 0 | 0.0 | 0.01 |
Barium | mg/L | 17 | 0.05 | 0.00 | 0.17 | 0 | 0.0 | 2 |
Cadmium | mg/L | 6 | 0.00 | 0.001 | 0.002 | 0 | 0.0 | 0.005 |
Calcium | mg/L | 26 | 37.73 | 0.25 | 192.02 | - | - | - |
Chromium | mg/L | 6 | 0.0 | 0.005 | 0.005 | 0 | 0.0 | 0.1 |
Copper | mg/L | 32 | 0.01 | 0.01 | 0.43 | 0 | 0.0 | 1.0,1.3 |
Iron | mg/L | 25 | 0.1 | 0.1 | 3.8 | 6 | 24.0 | 0.3 |
Lead-1st draw |
mg/L | 28 | 0.00 | 0.003 | 0.050 | 3 | 10.7 | 0.015 |
Lead-Running | mg/L | 21 | 0.003 | 0.003 | 0.006 | 0 | 0.0 | 0.015 |
Magnesium | mg/L | 26 | 9.40 | 0.05 | 52.21 | - | - | - |
Manganese | mg/L | 27 | 0.03 | 0.01 | 2.97 | 13 | 48.1 | 0.05 |
Mercury | mg/L | 5 | 0.00 | 0.000 | 0.001 | 0 | 0.0 | 0.002 |
Nickel | mg/L | 6 | 0.01 | 0.005 | 0.009 | - | - | - |
Sodium | mg/L | 1 | 5.51 | 5.51 | 5.51 | - | - | - |
Zinc | mg/L | 6 | 0.01 | 0.005 | 0.07 | 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