USGS Water-Year Summary for Site 403452092292901

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	Available Parameters
	72019 Water level, depth LSD(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

403452092292901 Vandike Farms

Sand and gravel aquifers (glaciated regions)
Drift

LOCATION - Lat 40°34'51.3", long 92°29'30.3" referenced to North American Datum of 1983, in NE 1/4 SE 1/4 SW 1/4 sec.29, T.67 N., R.14 W., Schuyler County, MO, Hydrologic Unit 07110002,

REVISIONS HISTORY -
Revisions: Land-surface datum was updated to 936.26 ft NAVD88 on May 22, 2023, as determined by a GNSS survey by Missouri DNR. Land-surface datum was previously published as 935 ft NAVD88 from topographic map. Discrete water-level measurements prior to May 22, 2023, are referenced to the original datum.

The record from 07/22/1980 to 10/26/2009 was revised after to was previously set to 'Approved' status. A -1.0 ft measuring point height correction was applied to this period of record to reference the water levels to land surface instead of the measuring point which is referenced in the field.

GROUNDWATER RECORDS

DATUM - Land-surface datum is 936.26 ft above North American Vertical Datum of 1988. Measuring point: unknown, 1.0 ft above land-surface datum, Jul. 21, 1980 to present.

PERIOD OF RECORD - July 22, 1980 to present.

GAGE - Stevens model 7001 digital recorder installed July 21, 1980. October 19, 2000 to present; DCP with float, encoder, and telemetry capability was installed as the water level recording device.

ECOLOGICAL RECORDS

REMARKS - Water level data from July 21, 1980 to Sept. 6, 1982; Nov. 30, 1988 to Aug. 16, 1989; and Oct. 20, 2000 to present furnished by Missouri Department of Natural Resources (MDNR). Water level data from Aug. 16, 1989 to Nov. 13, 1991 furnished by USGS. Water level record from July 21, 1980 to Aug. 16, 1989 furnished by MDNR. Water level record from Aug. 16, 1989 to Nov. 13, 1991 furnished by USGS. Water level record from October 19, 2000 to present processed by USGS and MDNR. Data from July 22, 1980 to October 18, 2000 are daily values from a digital recorder. Unit value data (30 minute intervals) are available for the periods December 19, 1988 to September 30, 1991 & October 19, 2000 to present. No field water level measurements are available to verify the record for the period July 21, 1980 to Aug. 16, 1989. This data has been archived by Missouri Department of Natural Resources (MDNR) and cannot be found. The record for this period is considered fair based on appearance only. The record from Aug. 15, 1989 to Nov. 13, 1991 is considered good based on 17 field water level measurements made during the period to verify the record. Water level measurements and recorded data were typically within +/-0.05 foot. No field water level measurements are available to verify the record for the period Nov. 14, 1991 to Jan. 9, 2002. The record for this period is considered fair based on appearance only. The record from Jan 10, 2002 to Oct. 26, 2009 is considered good based on 11 field water level measurements made during the period to verify the record. Water level measurements and recorded data were typically within +/-0.05 foot. It should be noted that occasionally the float tends to stick in the well. These periods are difficult to discern because of the slow water level changes in the well. The record for the period October 27, 2009 to April 27, 2010 is good based on 3 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.05 ft. The record for the period April 27, 2010 to August 8, 2011 is good based on 6 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.05 ft. The record from 07/08/2011 to 07/30/2012 is fair based on 5 water level measurements made during this period to verify the data is accurate to +/- 0.05 ft. The record from 07/31/2012 to 08/07/2013 is good based on 3 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.05 ft The record from 08/08/2013 to 01/21/2015 is good based on 4 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.05 ft. The record from 01/22/2015 to 08/02/2016 is good based on 2 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.05 ft. The record from 08/03/2016 to 04/23/2018 is good based on 4 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.05 ft. The record from 04/24/2018 to 09/03/2018 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.05 ft. The record from 09/04/2018 to 04/23/2019 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.05 ft. The record from 04/24/2019 to 09/23/2019 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.05 ft.

All further remarks can be found in RMS as of 09/24/2019.

WATER-QUALITY RECORDS

DATUM - Land-surface datum is 936.26 ft above North American Vertical Datum of 1988. Measuring point: unknown, 1.0 ft above land-surface datum, Jul. 21, 1980 to present.

COOPERATION - Data furnished by Missouri Department of Natural Resources (MDNR) except for brief period from Aug. 1989 to Nov. 1991 when the USGS operated the Missouri groundwater network.