USGS Water-Year Summary 2023
433527092265501 NTR1-1 North Drained Site Transect 1
Sand and gravel aquifers (glaciated regions)
Pleistocene Series
LOCATION - Lat 43°35'27.16", long 92°26'55.41" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 sec.31, T.102 N., R.13 W., Fillmore County, MN, Hydrologic Unit 07060002, The piezometer is located approximately 1.75 miles SW of Ostrander, MN. The piezometer is located in an agricultural field. The piezometer is located approximately 0.3 miles NE of the intersection of 160 street and Mower/Fillmore County Line Road.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 7.05 ft. Upper casing diameter 1.57 in; top of first opening 1.89 ft, bottom of last opening 6.36 ft. Piezometer NTR1-1 was installed using several sections of 3.25-inch-diameter Geoprobe rods to a depth of 7.05 feet. The piezometer is constructed of a 4.47-feet-long, 1.5-inch-diameter, schedule-40 PVC, 0.010-inch slotted Hole Products Inc. well screen, flush threaded to length/s of 5.00 feet of 1.5-inch-diameter, schedule-40 PVC well casing. The piezometer casing measuring point (stickup) was 1.75 feet (1336.70 ft. NAVD88, +/- 0.05 ft.) above land surface when measured on 22 April 2016. The open interval of the piezometer is between 1.89 and 6.36 feet below land surface and the total well depth is 7.05 feet below land surface.
This piezometer is screened in glacial till/clay sediment, which is overlies bedrock.
DATUM - Land-surface datum is 1,334.95 ft above North American Vertical Datum of 1988. Measuring point: Black mark on top of PVC well casing, 1.75 ft above land-surface datum, Apr. 22, 2016 to present. The measuring point is a black mark on the top of the white PVC 1.5-inch diameter well casing, which was 1.75 feet above land surface on 22 April 2016. Elevation of the measuring point is 1336.70 plus-or-minus 0.05 feet above sea level, North American Vertical Datum of 1988, based on differential GPS survey on 20 August 2016.
PERIOD OF RECORD -
Water levels were recorded periodically from 14 June 2016 to the 29 October 2018. Water levels were recorded hourly from 13 September 2016 at 15:45 CDT to 29 October 2018 at 13:00 CDT, except during the following periods:
11 May 2017 at 11:15-15:30 CDT: Deleted data due to baffle adjustments at nearby Agri Drain causing spikes.
15 Mar. 2018 at 15:45 CDT - 18 Mar. 2018 at 05:45 CDT: Deleted data due to inaccurate rises/falls compared to adjacent sites.
GAGE - Continuous water level and water temperature were measured with a new Solinst Model 3001 Levelogger Edge non-vented pressure transducer from 13 September 2016 at 15:45 CDT to 29 October 2018 at 13:00 CDT. These data were recorded quarter-hourly by the Solinst Model 3001 Levelogger pressure transducer, which had an internal data logger built into it. The data logger was housed inside the 1.5-inch PVC well casing. The piezometer has a slip-on PVC cap and no pad lock. The gage was powered by an internal pressure transducer battery. A Solinst Model 3001 Barologger Edge atmospheric barometer is installed at nearby piezometer NTR2-3A. These barometric pressure data were used to post-process/correct the non-vented pressure transducer data. Data were downloaded manually and no telemetry or phone line was wired into the gage.
The pressure transducer and data logger were removed from the well on 29 Oct. 2018 at 13:00 CDT. Data collection for the Impacts on Drainage Recharge study have concluded and all data logging equipment have been removed from the site.
COOPERATION - This site was operated (2016-2018) by the U.S. Geological Survey as a monitoring piezometer for the Southeast Minnesota Subsurface Drainage Impacts on Groundwater Recharge study. The piezometer began to be used as part of the Southeast Minnesota Subsurface Drainage Impacts on Groundwater Recharge study during 22 Apr. 2016 to 29 Oct. 2018. The GW Drainage Recharge study is a collaborative effort between the Environment and Natural Resources Trust Fund (via Legislative-Citizen Commission on Minnesota Resources (LCCMR)) and the U.S. Geological Survey.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 7.05 ft. Upper casing diameter 1.57 in; top of first opening 1.89 ft, bottom of last opening 6.36 ft. Piezometer NTR1-1 was installed using several sections of 3.25-inch-diameter Geoprobe rods to a depth of 7.05 feet. The piezometer is constructed of a 4.47-feet-long, 1.5-inch-diameter, schedule-40 PVC, 0.010-inch slotted Hole Products Inc. well screen, flush threaded to length/s of 5.00 feet of 1.5-inch-diameter, schedule-40 PVC well casing. The piezometer casing measuring point (stickup) was 1.75 feet (1336.70 ft. NAVD88, +/- 0.05 ft.) above land surface when measured on 22 April 2016. The open interval of the piezometer is between 1.89 and 6.36 feet below land surface and the total well depth is 7.05 feet below land surface.
This piezometer is screened in glacial till/clay sediment, which is overlies bedrock.
DATUM - Land-surface datum is 1,334.95 ft above North American Vertical Datum of 1988. Measuring point: Black mark on top of PVC well casing, 1.75 ft above land-surface datum, Apr. 22, 2016 to present. The measuring point is a black mark on the top of the white PVC 1.5-inch diameter well casing, which was 1.75 feet above land surface on 22 April 2016. Elevation of the measuring point is 1336.70 plus-or-minus 0.05 feet above sea level, North American Vertical Datum of 1988, based on differential GPS survey on 20 August 2016.
PERIOD OF RECORD -
Water temperatures were recorded hourly from 13 September 2016 at 15:45 CDT to 29 October 2018 at 13:00 CDT, except during the following periods:
11 May 2017 at 13:15-15:15 CDT: due to removing transducer from piezometer during site visit
COOPERATION - This site was operated (2016-2018) by the U.S. Geological Survey as a monitoring piezometer for the Southeast Minnesota Subsurface Drainage Impacts on Groundwater Recharge study. The piezometer began to be used as part of the Southeast Minnesota Subsurface Drainage Impacts on Groundwater Recharge study during 22 Apr. 2016 to 29 Oct. 2018. The GW Drainage Recharge study is a collaborative effort between the Environment and Natural Resources Trust Fund (via Legislative-Citizen Commission on Minnesota Resources (LCCMR)) and the U.S. Geological Survey.
INSTRUMENTATION - Water temperature are measured with an Solinst Levelogger 3001 submersible pressure transducer accurate to +/- 0.1°C. Temperature differences are accurate to 0.1°C.