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| Glacial Ridge Well G25 | |
|---|---|
| Beginning 24 October 2018, this site is no longer being maintained due to discontinued study. Water level calibration data continue to be collected, but the record is not being corrected. | |
| Beginning 13 October 2015, the rain gage has not been maintained or corrected due to discontinued study. | |
| County: | Polk |
| Township: | Onstad (T148N R45W) |
| Location: | in field 1 mile south of Township Road 247 & 1 mile west of Township Road 44 |
| Land-surface elevation: | 1008.32±0.05 feet, NAVD88 |
| Installation: | 10 July 2003, by the USGS |
| Well information | |
| Depth: | 30.35 feet |
| Open interval: | 20.38–24.68 feet |
| Original and current use: | monitoring, USGS Glacial Ridge Hydrology study |
| Aquifer information | |
| Type: | unconfined sand and gravel |
| Thickness: | 25 feet (0–25 feet, BLS) |
| Deposit: | surficial, Campbell Beach of Glacial Lake Agassiz |

During 2002–2015, this site is operated in cooperation with
the Legislative and Citizen's Commission on Minnesota Resources,
U.S. Fish & Wildlife Service, Red Lake River Watershed District and
The Nature Conservancy