| County: |
Redwood |
| Township: |
Sherman (T112N R34W) |
| Location: |
Northeast of the intersection of Co. Rd. 13 and 320th
Street |
| Land-surface elevation: |
972.470 +/- 0.030 feet, NAVD88 |
| Installation: |
Dec. 6, 2006, for the USGS |
| |
|
| Well
information |
| Depth: |
107 feet |
| Open interval: |
87–107 feet |
| Original and current use: |
Monitoring, USGS Hydrologic study |
| |
|
| Aquifer
information |
| Type: |
Hydrologically confined buried sand and gravel, with clay
lenses |
| Thickness: |
34 feet (86–120 feet, BLS) |
| Deposit: |
Buried, glacially deposited sand and gravel and bedrock
residuum |
This site is operated in cooperation with the Lower Sioux Indian
Community
Precipitation is accurate to 0.01 inches except during freezing
periods (about Dec. through early Apr.). The rain gage is unheated and
uncovered. The precipitation data during freezing periods result from
melting of snow (accumulated in the rain gage) during warm periods and
do NOT represent actual precipitation. Precipitation totals during
freezing periods may underestimate actual totals because the rain gage
funnel may be full of snow (preventing further accumulation) or because
snow in the funnel may sublimate instead of melt.
Water levels below land surface are accurate to 0.01 feet. Water
levels above National American Vertical Datum of 1988 (sea level) are
calculated by subtracting recorded water levels from the land surface
elevation, which is accurate to ± 0.01 feet based on a differential GPS
survey. Water-level differences are accurate to within 0.01 feet.
Water temperature is accurate to plus-or-minus 0.1°C, and
differences in temperature are accurate to 0.1°C.
This page is undergoing modernization with expected decommissioning as key features
are added to the modernized pages. 
![Graph of Precipitation, total, inches, [not accurate when freezing]](https://natwebcaww02.wr.usgs.gov/nwisweb/data/img/USGS.443053094591001.168416.00045..20241114.20241121..0..gif)
