USGS Water-Year Summary 2023

372202094370201 Asbury Springfield Plateau Aquifer

Ozark Plateaus aquifer system
Osagean Series

LOCATION - Lat 37°22'02.0", long 94°37'02.6" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 sec.07, T.30 N., R.33 W., Barton County, MO, Hydrologic Unit 11070207,

REVISIONS HISTORY - Revisions: Land-surface datum was updated to 924.88 ft NAVD88 on May 22, 2023, as determined by a GNSS survey by Missouri DNR. Land-surface datum was previously published as 925 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 924.88 ft above North American Vertical Datum of 1988. Measuring point: DNR DCP platform, 2.2 ft above land-surface datum, May. 18, 2007 to present.  

PERIOD OF RECORD - July 31, 2007 to present. Gage was installed July 4, 2007.

COOPERATION - Data furnished by Missouri Department of Natural Resources (MDNR).

REMARKS -

Data from 07/31/2007 to 09/30/2008 has been processed by the USGS with limited field water level measurements (4 measurements) during the period to verify the recorded water levels. This record is considered good and accurate to +/- 0.2 ft. Record from 10/01/2008 to 10/07/2009 is good based on 5 water level measurements taken during the period to verify the record and is considered accurate to +/- 0.1 ft. The record from 10/08/2009 to 08/17/2010 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 08/17/2010 to 08/15/2011 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 08/16/2011 to 07/30/2012 is good based on 7 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 07/31/2012 to 10/08/2013 is good based on 7 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 10/09/2013 to 10/08/2014 is good based on 3 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 10/09/2014 to 06/11/2016 is fair based on 6 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 06/12/2016 to 05/08/2017 is fair based on 3 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 05/08/2017 to 11/27/2017 is fair based on 1 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.20 ft. The record from 11/28/2017 to 03/27/2018 is good based on 1 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 03/28/2018 to 09/17/2018 is good based on 2 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 09/18/2018 to 01/09/2019 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 01/09/2019 to 06/04/2019 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.15 ft. The record from 06/05/2019 to 06/25/2019 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 06/26/2019 to 01/14/2020 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.10 ft. 

All further remarks can be found in RMS as of 01/15/2020.