Difference between revisions of "Aquifer hydraulic properties"
m |
m |
||
| Line 46: | Line 46: | ||
<tr> | <tr> | ||
<td>Till</td> | <td>Till</td> | ||
| − | <td>1×10<sup>-12</sup> to 2×10<sup>-6</td> | + | <td>1×10<sup>-12</sup> to 2×10<sup>-6</sup></td> |
<td>1×10<sup>-9</sup></td> | <td>1×10<sup>-9</sup></td> | ||
<td>0.06-0.16</td> | <td>0.06-0.16</td> | ||
Revision as of 17:08, 30 March 2016
Horizontal saturated conductivity1 and specific yield2 of geologic materials. Sources:Duffield; Morris and Johnson
Link to this table
| Material | Range Ksat (m/s)3 | Typical Ksat (m/s) | Range specific yield | Typical specific yield |
|---|---|---|---|---|
| Gravel | 3×10-4 to 3×10-2 | 3×10-3 | 0.21-0.28 | 0.24 |
| Coarse sand | 9×10-7 to 6×10-3 | 5×10-5 | 0.26-0.30 | 0.26 |
| Medium sand | 9×10-7 to 5×10-4 | 1×10-5 | 0.26-0.30 | 0.26 |
| Fine sand | 2×10-7 to 2×10-4 | 5×10-6 | 0.20-0.30 | 0.21 |
| Silt, loess | 1×10-9 to 2×10-5 | 1×10-7 | 0.15 | |
| Till | 1×10-12 to 2×10-6 | 1×10-9 | 0.06-0.16 | 0.10 |
| Clay | 1×10-11 to 4.7×10-9 | 1×10-10 | 0.06-0.10 | 0.08 |
1vertical saturated conductivity is considered to be one-tenth the value of horizontal saturated conductivity.
Superscript textSpecific yield is expressed here as a fraction. It is often reported as a percentage in the literature.
31 meter = 3.28 feet