USGS Water-Year Summary 2024

444008092423201 PI 98-14 114N16W23BCAA Prairie Island 0000612781

Sand and gravel aquifers (glaciated regions)
Pleistocene Series

LOCATION - Lat 44°40'07.66", long 92°42'31.69" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 NW 1/4 sec.23, T.114 N., R.16 W., Goodhue County, MN, Hydrologic Unit 07040001, 4 miles south and 7 miles east of Hastings, Minnesota. The land surface at the site is 688.16 plus-or-minus 0.01 feet above the North American Vertical Datum of 1988.

REVISIONS HISTORY - All previously published water temperature data between Oct. 01, 2008 and Sept. 30, 2010 were changed slightly due the discovery of an inaccurate water thermistor. This thermistor was used to calibrate the water temperature record against, but after further analysis/comparasion, the thermistor was determined to be a poor piece of calibration equipment. This thermistor has since been discontinued and the Minnesota Water-Science Center is currently testing a more accurate water thermistor to calibrate the water temperature record against. These have been corrected in the USGS data base, but will not be republished in this report series. Contact the USGS Minnesota Water-Science Center for all corrected data. The entire water temperature record was reevaluated and adjusted to a calibration measurement on Sept. 26, 2011. The record is no longer adjusted to all previous calibration measurements because the technique and instruments used were not adequate to accurately measure the water temperature. The record is considered accurate to +/- 0.1 degrees C after Oct. 1, 2009. Before that time, the record is considered accurate to +/- 0.2 degrees C because a gap in the record around that time and the installation of a new transducer increases uncertanity. Previously published water temperature data will not be re-published. If interested, contact the Minnesota Water-Science Center to obtain these corrected data.

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 20.13 ft. Upper casing diameter 2 in; top of first opening 15 ft, bottom of last opening 20 ft. The hole for well PI 98-14 was drilled with an 8.25-inch-diameter power auger to a depth of 22 feet on Sep. 3, 1998. The well is constructed of a 5-foot-long, 2.04-inch-diameter, schedule-40 PVC, 0.010-inch slotted, flush-threaded screen attached to about 18 feet of 2.04-inch-diameter, schedule-40 PVC casing. This casing had a stick-up of 2.93 feet above land surface on Sep. 3, 1998.

DATUM - Land-surface datum is 688.16 ft above North American Vertical Datum of 1988. Measuring point: MP is top of casing, not from protection post, 2.93 ft above land-surface datum, Sep. 3, 1998 to present. Water levels are in feet above sea level and depth below land surface. Water-level elevations are accurate to plus-or-minus 0.01 feet, based on an optical survey from 1st-vertical-order benchmarks. Elevation of the measuring point is 691.09 ft. above North American Vertical Datum of 1988.

PERIOD OF RECORD - Hourly water level measurements were recorded from Apr. 20, 2006 to Jun. 09, 2006. Hourly water level measurements were recorded with intemittent gaps in the record from Jun 10, 2006 to Aug. 20, 2006. Hourly water level measurements were recorded from Aug. 21, 2006 to Sept. 29, 2007. Hourly water level measurements were recorded from Nov. 09, 2007 to Aug. 24, 2009. Hourly water level measurements were recorded from Oct. 09, 2009 to Nov. 05, 2012 at 11:00 CST. From Apr. 20, 2006 to the present, water level has been measured hourly by a pressure transducer. The period during Sep. 30, 2007 at 03:00 CDT to Nov. 08, 2007 at 14:00 CST is missing because the transducer stopped working. The period during Aug. 25, 2009 at 04:00 CDT to Oct. 08, 2009 at 16:00 CDT is missing because the transducer thermister stopped working. All other remaining breaks in hourly water level measurements (above) were a result of station failure during those time periods.

GAGE - Water level is measured with a Design Analysis H-310 submersible pressure transducer accurate to 0.01 feet. Shelter temperature, and battery voltage are measured by a Campbell Scientific, Inc. CR206 data logger, which also records all data hourly. The data logger is housed in a 10-inch X 12-inch grey fiberglass shelter attached to the well casing. The gage is powered by a 10W solar panel and is telemetered by telephone.

COOPERATION - Well PI 98-14 is operated in cooperation with the Prairie Island Indian Community.

REMARKS - Measured groundwater levels are precise to two decimal places, not the 3 decimal places reported. Differences between subsequent groundwater levels are precise to 3 decimal places, however. Three-decimal place precision is useful at this site for hydrologic analyses such as estimation of groundwater recharge and evapotranspiration.

EXTREMES FOR PERIOD OF RECORD - maximum hourly water level: 5.642 feet below land surface (682.518 feet NAVD88) on Apr. 15, 2011 at 15:00 CST; minimum hourly water level: 15.788 feet below land surface (672.372 feet NAVD88) on Mar. 5, 2010 at 10:00 CST; maximum daily water level: 5.665 feet below land surface (682.495 feet NAVD88) on Apr. 15, 2011; minimum daily water level: 15.784 feet below land surface (672.376) feet NAVD88) on Mar. 5, 2010.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - Hourly precipitation measurements are recorded from Aug. 24, 2006 at 12:00 CDT to Nov. 05, 2012 at 11:00 CST.

INSTRUMENTATION - A tipping-bucket rain gage was added to the station on Aug. 24, 2006, which measures and records precipitation total hourly by a Campbell Scientific, Inc. CR205 data logger and is accurate to 0.01 inches. The rain gage is unheated and uncovered during the winter. Thus precipitation data during freezing periods (about December through early April) result from melting of snow during warm periods and do NOT represent actual precipitation.

EXTREMES FOR PERIOD OF RECORD - PRECIPITATION: maximum hourly total recorded: 1.69 in., Aug. 16, 2011 at 23:00 CDT; maximum daily total: 3.68 inches on Aug. 19, 2007.

EXTREMES FOR CURRENT YEAR - PRECIPITATION: maximum hourly precipitation, 1.69 in., Aug. 16, 2011 at 23:00 CDT; maximum daily precipitation, 2.14 in., Aug. 16, 2011.

WATER-QUALITY RECORDS

WELL CHARACTERISTICS - Depth 20.13 ft. Upper casing diameter 2 in; top of first opening 15 ft, bottom of last opening 20 ft. The hole for well PI 98-14 was drilled with an 8.25-inch-diameter power auger to a depth of 22 feet on Sep. 3, 1998. The well is constructed of a 5-foot-long, 2.04-inch-diameter, schedule-40 PVC, 0.010-inch slotted, flush-threaded screen attached to about 18 feet of 2.04-inch-diameter, schedule-40 PVC casing. This casing had a stick-up of 2.93 feet above land surface on Sep. 3, 1998.

DATUM - Land-surface datum is 688.16 ft above North American Vertical Datum of 1988. Measuring point: MP is top of casing, not from protection post, 2.93 ft above land-surface datum, Sep. 3, 1998 to present. Water levels are in feet above sea level and depth below land surface. Water-level elevations are accurate to plus-or-minus 0.01 feet, based on an optical survey from 1st-vertical-order benchmarks. Elevation of the measuring point is 691.09 ft. above North American Vertical Datum of 1988.

PERIOD OF RECORD - Hourly water temperature measurements were recorded from Apr. 20, 2006 to Jun. 09, 2006. Hourly water temperature measurements were recorded with intermittent gaps in the record from Jun 10, 2006 to Aug. 20, 2006. Hourly water temperature measurements were recorded from Aug. 21, 2006 to Aug. 24, 2009. Hourly water temperature measurements were recorded from Oct. 09, 2009 to Jun. 10, 2012 at 23:00 CDT. The period during Aug. 25, 2009 at 04:00 CDT to Oct. 8, 2009 at 16:00 CDT is missing because the transducer thermister stopped working. The remaining breaks in hourly water temperature measurements (above) were a result of station and/or transducer failure during those time periods. The period from Jun. 11, 2012 at 00:00 CDT to Nov. 05, 2012 at 11:00 CST is missing due to a failed thermistor.

PERIOD OF DAILY RECORD - WATER TEMPERATURE: Daily-average water temperature measurements were recorded from Apr. 21, 2006 to Jun. 10, 2012. The period on Nov. 7, 2007 during 05:00-17:00 CST was estimated based on surrounding values because the transducer was being changed. The period during Aug. 25, 2009 at 04:00 CDT to Sept. 30, 2009 at 23:00 CDT is missing because the transducer thermistor stopped working. The period during Jun. 11, 2012 to Nov. 05, 2012 is missing due to a failed thermistor.

COOPERATION - Well PI 98-14 is operated in cooperation with the Prairie Island Indian Community.

INSTRUMENTATION - Water temperature was measured with a Design Analysis H-310 submersible pressure transducer accurate to plus-or-minus 0.1°C. Differences in water temperature are also accurate to plus-or-minus 0.1°C.

EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum hourly: 13.1°C during Oct. 17, 2010 at 22:00 CDT - Nov. 25, 2010 at 00:00 CST; Minimum hourly: 8.2°C on Apr. 9 2007 at 22:00 CDT, Apr. 28, 2007 at 07:00 CDT.

EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum daily-average: 13.1°C during Oct. 18 - Nov. 24, 2010; Minimum daily-average: 8.2°C during Apr. 09 - 28, 2007.

EXTREMES FOR CURRENT YEAR - WATER TEMPERATURE: Maximum hourly: 13.1°C during Oct. 17, 2010 at 22:00 CDT-Nov. 25, 2010 at 00:00 CST; Minimum hourly: 8.9°C on Apr. 28, 2011 at 23:00 CDT and Apr. 29, 2011 at 02:00 CDT; Maximum daily-average: 13.1°C during Oct. 18-Nov. 24, 2010; Minimum daily-average: 9.0°C during Apr. 19-May 14, 2011.