Crawford
Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Crawford County
1/2/2008 - 4/21/2017, 72 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 |
67 | 1.0 | 0.0 | 200.5 | 34 | 50.7 | 0 |
| E. Coli |
MPN/100 mL |
67 | 0.0 | 0.0 | 200.5 | 7 | 10.4 | 0 |
| pH | - |
63 | 7.8 | 6.2 | 8.2 | 3 | 4.8 | 6.5-8.5 |
| Total Dissolved Solids |
mg/L | 62 | 210.5 | 69.0 | 715.0 | 2 | 3.2 | 500 |
| Corrosivity Index* |
- |
25 | 0.1 | -2.0 | 1.1 | 19 | 76.0 | - |
| Hardness | mg/L | 24 | 132.6 | 0.8 | 385.9 | - | - | - |
| Nitrate+Nitrite N |
mg/L | 24 | 0.5 | 0.2 | 6.8 | 0 | 0.0 | 10 |
| Chloride | mg/L | 12 | 14.6 | 2.1 | 77.5 | 0 | 0.0 | 250 |
| Sulfate | mg/L | 2 | 19.0 | 16.2 | 21.9 | 0 | 0.0 | 250 |
| Aluminum | mg/L | 1 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.05-0.2 |
| Arsenic | mg/L | 12 | 0.00 | 0.003 | 0.065 | 3 | 25.0 | 0.01 |
| Barium | mg/L | 12 | 0.04 | 0.00 | 0.52 | 0 | 0.0 | 2 |
| Cadmium | mg/L | 4 | 0.00 | 0.001 | 0.001 | 0 | 0.0 | 0.005 |
| Calcium | mg/L | 24 | 36.66 | 0.25 | 97.55 | - | - | - |
| Chromium | mg/L | 4 | 0.0 | 0.001 | 0.005 | 0 | 0.0 | 0.1 |
| Copper | mg/L | 24 | 0.01 | 0.01 | 0.23 | 0 | 0.0 | 1.0,1.3 |
| Iron | mg/L | 26 | 0.1 | 0.0 | 5.6 | 9 | 34.6 | 0.3 |
| Lead-1st draw |
mg/L | 13 | 0.00 | 0.003 | 0.076 | 2 | 15.4 | 0.015 |
| Lead-Running | mg/L | 15 | 0.003 | 0.003 | 0.004 | 0 | 0.0 | 0.015 |
| Magnesium | mg/L | 19 | 11.65 | 3.34 | 34.56 | - | - | - |
| Manganese | mg/L | 28 | 0.07 | 0.01 | 24.45 | 16 | 57.1 | 0.05 |
| Mercury | mg/L | 10 | 0.03 | 0.001 | 0.899 | 5 | 50.0 | 0.002 |
| Nickel | mg/L | 4 | 0.01 | 0.005 | 0.005 | - | - | - |
| Sodium | mg/L | 5 | 0.08 | 0.01 | 0.30 | - | - | - |
| Zinc | mg/L | 9 | 0.00 | 0.00 | 0.04 | 0 | 0.0 | 5 |
*For corrosivity index, failure criteria based on less than -0.5 or greater than 0.5