USGS Water-Year Summary for Site 401920092130301

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	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

401920092130301 Indian Hills

Mississippian aquifers
Mississippian System

LOCATION - Lat 40°19'20.1", long 92°13'02.6" referenced to North American Datum of 1983, in NE 1/4 SE 1/4 SE 1/4 sec.27, T.64 N., R.12 W., Scotland County, MO, Hydrologic Unit 07110002,

REVISIONS HISTORY - Revisions: Land-surface datum was updated to 732.58 ft NAVD88 on May 22, 2023, as determined by a GNSS survey by Missouri DNR. Land-surface datum was previously published as 735 ft NGVD29 from a topographic map. Discrete water-level measurements prior to May 22, 2023, are referenced to the original datum.

GROUNDWATER RECORDS

DATUM - Land-surface datum is 732.58 ft above North American Vertical Datum of 1988. Measuring point: DNR DCP platform shelf, 1.0 ft above land-surface datum, Mar. 5, 2009 to present.

GAGE - From March 05, 2009 to present, water level recording device is DCP with telemetry capability setting in metal box on top of casing. From March 05, 2009 to May 19, 2009 the water level measuring device was a float driven encoder. From May 19, 2009 to August 19, 2009 the water level measuring device was a submersible pressure transducer. From August, 19, 2009 to May 14, 2015 the water level measuring device was float driven encoder. From May 14, 2014 to preset the water level measuring device is a submersible pressure transducer.

COOPERATION - From March 05, 2009 to present, water level data furnished by the Missouri Department of Natural Resources (MDNR). From March 05, 2009 to present, water level data processed by USGS and MDNR.

REMARKS -

The record from 03/05/2009 to 06/28/2010 is fair (except for the period 05/19/2009 to 08/19/2009 which is poor) based on 8 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.5 ft. The error is caused by the frequent sticking and breaking free of the float in the well. The period 05/19/2009 to 08/19/2009 is poor and accurate to +/- 8 ft. This error was caused by a faulty transducer. The record from 06/25/2010 to 09/13/2010 is fair based on 2 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.2 ft. The float frequently sticks in the well for several days at a time, however the data 'jumps' when the float becomes free is usually less than 0.2 ft. The record from 09/13/2010 to 05/24/2011 is fair based on 3 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.2 ft. Although the float frequently sticks, it appears the float becomes free and the jumps are usually about 0.2 ft. Periods of over a week with non-changing water levels were deleted. The record from 05/25/2011 to 07/30/2012 is fair based on 4 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.2 ft. Although the float frequently sticks, it appears the float becomes free and the jumps are usually about 0.2 ft. The record from 07/31/2012 to 10/19/2013 is fair based on 3 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.2 ft. Although the float frequently sticks, it appears the float becomes free and the jumps are usually about 0.2 ft. The record from 10/20/2013 to 01/21/2015 is fair based on 5 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.2 ft. Although the float frequently sticks, it appears the float becomes free and the jumps are usually about 0.2 ft. Periods that the float sticks are relatively short. The record from 01/21/2015 to 05/14/2015 is fair based on 1 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.2 ft. Although the float frequently sticks, it appears the float becomes free and the jumps are usually about 0.2 ft. Periods that the float sticks are relatively short. The float driven encoder was replaced with a pressure transducer on 05/14/2015. The record from 05/14/2015 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 02/14/2017 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 02/15/2017 to 08/14/2017 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 08/15/2017 to 04/23/2018 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 04/24/2018 to 09/03/2018 is good based on 2 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 later correction notes and remarks can be found in RMS as of 09/24/2019.

PERIOD OF DAILY RECORD -

From March 05, 2009 to present. Periods of missing record: 03/24/2009 to 04/08/2009; 04/14/2009 to 04/18/2009; 04/21/2009 to 04/23/2009; 05/10/2009 to 05/11/2009; 05/15/2009 to 05/18/2009; 12/25/2009 to 12/26/2009; 01/20/2010 to 01/21/2010; 02/11/2010 to 02/17/2010; 05/15/2010 to 05/20/2010; 01/01/2011 to 01/06/2011; 02/10/2011 to 02/13/2011; 02/15/2011 to 02/16/2011; 04/22/2011 to 05/25/2011; 11/23/2011 to 12/14/2011; 07/28/2014 to 08/13/2014; 01/27/2015 to 01/28/2015; 02/02/2015 to 02/03/2015; 02/05/2015 to 02/08/2015; 02/13/2015 to 02/16/2015; 03/13/2015 to 03/16/2015; 03/25/2015 to 04/01/2015; 04/05/2015 to 04/09/2015; 04/15/2015 to 04/18/2015; 04/26/2015 to 04/30/2015; 05/03/2015 to 05/04/2015; 05/07/2015 to 05/10/2015. Notes: 07/28/2014 to 08/13/2014; 01/27/2015 to 01/28/2015; 02/02/2015 to 02/03/2015; 02/05/2015 to 02/08/2015; 02/13/2015 to 02/16/2015; 03/13/2015 to 03/16/2015; 03/25/2015 to 04/01/2015; 04/05/2015 to 04/09/2015; 04/15/2015 to 04/18/2015; 04/26/2015 to 04/30/2015; 05/03/2015 to 05/04/2015; 05/07/2015 to 05/10/2015. -stuckfloat

All later correction notes and remarks can be found in RMS as of 09/24/2019.