Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Lancaster County
8/15/2007 - 6/23/2020, 323 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 |
309 | 0.0 | 0.0 | 200.5 | 114 | 36.9 | 0 |
E. Coli |
MPN/100 mL |
309 | 0.0 | 0.0 | 200.5 | 27 | 8.7 | 0 |
pH | - |
297 | 7.4 | 4.9 | 9.6 | 56 | 18.9 | 6.5-8.5 |
Total Dissolved Solids |
mg/L | 298 | 263.5 | 20.0 | 1003.0 | 28 | 9.4 | 500 |
Corrosivity Index* |
- |
111 | -1.2 | -5.8 | 0.8 | 79 | 71.2 | - |
Hardness | mg/L | 118 | 102.6 | 0.8 | 497.8 | - | - | - |
Nitrate+Nitrite N |
mg/L | 210 | 6.0 | 0.2 | 25.8 | 54 | 25.7 | 10 |
Chloride | mg/L | 11 | 29.1 | 1.0 | 48.3 | 0 | 0.0 | 250 |
Sulfate | mg/L | 11 | 12.5 | 1.8 | 73.8 | 0 | 0.0 | 250 |
Aluminum | mg/L | 3 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.05-0.2 |
Arsenic | mg/L | 69 | 0.00 | 0.001 | 0.004 | 0 | 0.0 | 0.01 |
Barium | mg/L | 62 | 0.02 | 0.00 | 0.76 | 0 | 0.0 | 2 |
Cadmium | mg/L | 15 | 0.00 | 0.001 | 0.002 | 0 | 0.0 | 0.005 |
Calcium | mg/L | 110 | 26.92 | 0.25 | 128.64 | - | - | - |
Chromium | mg/L | 15 | 0.0 | 0.001 | 0.005 | 0 | 0.0 | 0.1 |
Copper | mg/L | 131 | 0.01 | 0.01 | 1.95 | 1 | 0.8 | 1.0,1.3 |
Iron | mg/L | 74 | 0.1 | 0.1 | 4.0 | 8 | 10.8 | 0.3 |
Lead-1st draw |
mg/L | 84 | 0.00 | 0.003 | 0.121 | 15 | 17.9 | 0.015 |
Lead-Running | mg/L | 95 | 0.003 | 0.003 | 0.162 | 3 | 3.2 | 0.015 |
Magnesium | mg/L | 110 | 6.28 | 0.05 | 66.39 | - | - | - |
Manganese | mg/L | 66 | 0.01 | 0.01 | 0.40 | 12 | 18.2 | 0.05 |
Mercury | mg/L | 19 | 0.00 | 0.000 | 0.002 | 0 | 0.0 | 0.002 |
Nickel | mg/L | 15 | 0.01 | 0.005 | 0.010 | - | - | - |
Sodium | mg/L | 0 | - | - | - | - | - | - |
Zinc | mg/L | 15 | 0.01 | 0.01 | 0.23 | 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 - 4:30 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540
Ag Analytical Services Lab
Hours: Monday-Friday, 8:00 AM - 4:30 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540