Difference between revisions of "Infiltration rates observed in Minnesota"
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<th>Number of monitoring sites</th> | <th>Number of monitoring sites</th> | ||
<th>Brief description of site</th> | <th>Brief description of site</th> | ||
| + | <th>Year construction</th> | ||
<th>Monitoring dates</th> | <th>Monitoring dates</th> | ||
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<tr> | <tr> | ||
<td>South Washington Watershed District</td> | <td>South Washington Watershed District</td> | ||
| − | <td>0. | + | <td>0.02 to 3.02<sup>1</sup></td> |
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<td>1</td> | <td>1</td> | ||
<td>Infiltration trench located in regional basin CD-P85. These trenches are an average of 13 feet deep. Underlying material is sand and gravelly sand.</td> | <td>Infiltration trench located in regional basin CD-P85. These trenches are an average of 13 feet deep. Underlying material is sand and gravelly sand.</td> | ||
| + | <td>2004</td> | ||
<td>1999 to 2005</td> | <td>1999 to 2005</td> | ||
</tr> | </tr> | ||
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<td>4</td> | <td>4</td> | ||
<td>Monitoring data collected at 3 rain gardens and an infiltration island located at Hugo City Hall. Soils in the basin consist of silty fine sand with a shallow depth to the water table. Trench receives significant pretreatment of stormwater prior to infiltration.</td> | <td>Monitoring data collected at 3 rain gardens and an infiltration island located at Hugo City Hall. Soils in the basin consist of silty fine sand with a shallow depth to the water table. Trench receives significant pretreatment of stormwater prior to infiltration.</td> | ||
| + | <td>2002</td> | ||
<td>2002 to 2003</td> | <td>2002 to 2003</td> | ||
</tr> | </tr> | ||
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<td>2</td> | <td>2</td> | ||
<td>Monitoring data collected at 2 infiltration basins. Soils in the basins consist of silty sand and silt clay interspersed with clayey sandy silt.</td> | <td>Monitoring data collected at 2 infiltration basins. Soils in the basins consist of silty sand and silt clay interspersed with clayey sandy silt.</td> | ||
| + | <td></td> | ||
<td>2000 to 2005</td> | <td>2000 to 2005</td> | ||
</tr> | </tr> | ||
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<td>3</td> | <td>3</td> | ||
<td>Monitoring data collected at 3 infiltration basins located in a residential development. Soils in the basins consist of sandy loam and silt loam (HSG B).</td> | <td>Monitoring data collected at 3 infiltration basins located in a residential development. Soils in the basins consist of sandy loam and silt loam (HSG B).</td> | ||
| + | <td></td> | ||
<td>2001 to 2003</td> | <td>2001 to 2003</td> | ||
</tr> | </tr> | ||
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<td>Monitoring data collected in 1 infiltration basin located in a commercial develolment. Soils in the basin consist of a silty sand.</td> | <td>Monitoring data collected in 1 infiltration basin located in a commercial develolment. Soils in the basin consist of a silty sand.</td> | ||
<td>2005</td> | <td>2005</td> | ||
| + | <td>2005</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>Gortner Ave. Rain Water Gardens, University of Minnesota, tested by St. Anthony Falls Laboratory, Water, Air, Soil Pollution, 2013: Assessment of the Hydraulic and Toxic Metal Capacities of Bioretention Cells After 2 to 8 Years of Service</td> | ||
| + | <td>0.104 to 5.76</td> | ||
| + | <td>1</td> | ||
| + | <td>Assessment of 40 locations within one bioretention basin. Testing was conducted 2 years after installation. The Raingarden receives runoff from adjunct grassed areas and a street. The underlying soils consist of sandy loam and silt loam over sand.</td> | ||
| + | <td>2004</td> | ||
| + | <td>2006 and 2010</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>St. Anthony Falls Laboratory, Minnesota Local Road Research Board, Minnesota Department of Transportation</td> | ||
| + | <td>0.29 to 1.55</td> | ||
| + | <td>5</td> | ||
| + | <td>Five highway ditches studied, with up to 20 measurements taken at each highway ditch segment, for a total of 96 measurements.</td> | ||
| + | <td></td> | ||
| + | <td>2011-2012</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>JAWA, 2009: Performance Assessment of Rain Gardens</td> | ||
| + | <td>1.29</td> | ||
| + | <td>1</td> | ||
| + | <td>Stillwater Infiltration Basin, 65 measurements</td> | ||
| + | <td></td> | ||
| + | <td>2012</td> | ||
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<font size=1><sup>1</sup>The high end of this range (3.1 inches per hour) is not representative of typical rates for similar soil types. This facility is periodically subject to 25 foot depths of water, is underlain by more than 100 feet of pure sand and gravel without any confining beds and the depth to the water table is greater than 50 feet below the land surface. In addition, two infiltration enhancement projects have been constructed in the bottom of the facility to promote infiltration: five dry wells and two infiltration trenches have been operating in CD-P85 at various periods of the monitoring program.</font size> | <font size=1><sup>1</sup>The high end of this range (3.1 inches per hour) is not representative of typical rates for similar soil types. This facility is periodically subject to 25 foot depths of water, is underlain by more than 100 feet of pure sand and gravel without any confining beds and the depth to the water table is greater than 50 feet below the land surface. In addition, two infiltration enhancement projects have been constructed in the bottom of the facility to promote infiltration: five dry wells and two infiltration trenches have been operating in CD-P85 at various periods of the monitoring program.</font size> | ||
Revision as of 20:35, 23 June 2015
Infiltration rates observed in Minnesota.
Link to this table
| Source of data | Range of infiltration rates (in/hr) | Number of monitoring sites | Brief description of site | Year construction | Monitoring dates |
|---|---|---|---|---|---|
| South Washington Watershed District | 0.02 to 3.021 | 1 | Infiltration trench located in regional basin CD-P85. These trenches are an average of 13 feet deep. Underlying material is sand and gravelly sand. | 2004 | 1999 to 2005 |
| Rice Creek Watershed District | 0.03 to 0.59 | 4 | Monitoring data collected at 3 rain gardens and an infiltration island located at Hugo City Hall. Soils in the basin consist of silty fine sand with a shallow depth to the water table. Trench receives significant pretreatment of stormwater prior to infiltration. | 2002 | 2002 to 2003 |
| Brown's Creek Watershed District | 0.01 to 0.20 | 2 | Monitoring data collected at 2 infiltration basins. Soils in the basins consist of silty sand and silt clay interspersed with clayey sandy silt. | 2000 to 2005 | |
| Field's of St. Croix, Lake Elmo, MN. | 0.02 to 0.14 | 3 | Monitoring data collected at 3 infiltration basins located in a residential development. Soils in the basins consist of sandy loam and silt loam (HSG B). | 2001 to 2003 | |
| Bradshaw Development, Stillwater, MN | 0.26 to 0.28 | 1 | Monitoring data collected in 1 infiltration basin located in a commercial develolment. Soils in the basin consist of a silty sand. | 2005 | 2005 |
| Gortner Ave. Rain Water Gardens, University of Minnesota, tested by St. Anthony Falls Laboratory, Water, Air, Soil Pollution, 2013: Assessment of the Hydraulic and Toxic Metal Capacities of Bioretention Cells After 2 to 8 Years of Service | 0.104 to 5.76 | 1 | Assessment of 40 locations within one bioretention basin. Testing was conducted 2 years after installation. The Raingarden receives runoff from adjunct grassed areas and a street. The underlying soils consist of sandy loam and silt loam over sand. | 2004 | 2006 and 2010 |
| St. Anthony Falls Laboratory, Minnesota Local Road Research Board, Minnesota Department of Transportation | 0.29 to 1.55 | 5 | Five highway ditches studied, with up to 20 measurements taken at each highway ditch segment, for a total of 96 measurements. | 2011-2012 | |
| JAWA, 2009: Performance Assessment of Rain Gardens | 1.29 | 1 | Stillwater Infiltration Basin, 65 measurements | 2012 | |
1The high end of this range (3.1 inches per hour) is not representative of typical rates for similar soil types. This facility is periodically subject to 25 foot depths of water, is underlain by more than 100 feet of pure sand and gravel without any confining beds and the depth to the water table is greater than 50 feet below the land surface. In addition, two infiltration enhancement projects have been constructed in the bottom of the facility to promote infiltration: five dry wells and two infiltration trenches have been operating in CD-P85 at various periods of the monitoring program.