|Beginning on 03 March 2023, the analog modem telemetry is no longer supoorted at this site. We are working on a solution to get this site to transmit data again, but there will likely be a delayed effort. Data are still actively being recorded at this site, but they are not being transmitted. Data will be manually downloaded periodically and loaded into the database.|
|Bemidji Toxics Research Site Well 604B|
|Township:||Lamers (T147N R35W)|
|Location:||In forest, 3.7 miles north of US Hwy. 2, 2.3 miles SE of Pinewood, MN|
|Land-surface elevation:||1412.81 +/- 0.01 feet, NAVD88|
|Installation:||May 29, 1987, for the Bemidji Toxics Research Site|
|Open interval:||27.01–27.26 feet|
|Original and current use:||Monitoring, for the U.S. Geological Survey|
|Type:||hydrologically unconfined sand and gravel|
|Thickness:||>29.71 feet (0.00–>29.71 feet, BLS)|
|Deposit:||glacially deposited sand and gravel|
This site is operated in cooperation with the U.S. Geological Survey's Toxic Substances Hydrology Program, Minnesota Pollution Control Agency, Enbridge Energy Inc., and Beltrami County.
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 during 20 Dec. 2011 at 16:00 CST to 09 Jan. 2013 at 13:00 CST (measured with KPSI 500 transducer) were accurate to plus-or-minus 0.3°C, due to noisiness in the water temperature record. Differences in temperature were accurate to 0.3°C. Water temperatures during 09 Jan. 2013 at 15:30 CST to the present (measured with Design Analysis H-310 transducer) are accurate to plus-or-minus 0.3°C. Differences in temperature are accurate to 0.1°C.