USGS Water-Year Summary 2023

364324091515001 West Plains

Ozark Plateaus aquifer system
Potosi Dolomite

LOCATION - Lat 36°44'47.2", long 91°52'42.6" referenced to North American Datum of 1983, in SE 1/4 SE 1/4 sec.18, T.24 N., R.8 W., Howell County, MO, Hydrologic Unit 11010010,

REVISIONS HISTORY - Revisions: Land-surface datum was updated to 1,011.27 ft NAVD88 on May 22, 2023, as determined by a GNSS survey by Missouri DNR. Land-surface datum was previously published as 1,007 ft NAVD88 from topographic map. Discrete water-level measurements prior to May 22, 2023, are referenced to the original datum.

GROUNDWATER RECORDS

DATUM - Land-surface datum is 1,011.27 ft above North American Vertical Datum of 1988. Measuring point: unknown, 2.0 ft above land-surface datum, Mar. 14, 2002 to Jun. 5, 2013; unknown, 1.74 ft above land-surface datum, Jun. 5, 2013 to present.  

PERIOD OF RECORD - November 22, 2000 to present.

GAGE - November 22, 2000 to February 7, 2006; DCP with telemetry capability and float and encoder, was installed as the water level recording and measuring devices. February 8, 2006 to present, water level measuring device is a vented, submersible pressure transducer.

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

REMARKS - Data from November 22, 2000 to August 25, 2009 is fair based on the 24 water level measurements which were made during this period to verify recorded water levels. Data from 10/01/2008 to 08/25/2009 is good based on 3 water level measurements made during the period to verify the record and is accurate to +/- 0.10 ft. Data from 08/25/2009 to 07/07/2010 is good based on 3 water level measurements made during the period to verify the record and is accurate to +/- 0.10 ft. Data from 07/07/2010 to 10/11/2011 is good based on 6 water level measurements made during the period to verify the record and is accurate to +/- 0.30 ft. Data from 10/11/2011 to 07/26/2012 is good based on 3 water level measurements made during the period to verify the record and is accurate to +/- 0.10 ft. The record from 07/27/2012 to 09/30/2013 is good based on 7 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. Data from 10/01/2013 to 12/17/2014 is good based on 3 water level measurements made during the period to verify the record and is accurate to +/- 0.10 ft. Data from 12/18/2014 to 06/08/2016 is good based on 3 water level measurements made during the period to verify the record and is accurate to +/- 0.10 ft. Data from 06/09/2016 to 02/21/2017 is fair based on 2 water level measurements made during the period to verify the record and is accurate to +/- 0.10 ft. Data from 02/22/2017 to 11/28/2017 is good based on 2 water level measurement made during the period to verify the record and is accurate to +/- 0.10 ft. Data from 11/29/2017 to 02/13/2018 is good based on 1 water level measurement made during the period to verify the record and is accurate to +/- 0.20 ft. The record from 02/14/2018 to 05/01/2018 is fair based on 1 water level measurement made during the period to verify the record and is accurate to +/- 2.1 ft. The record from 05/02/2018 to 08/07/2018 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.40 ft. The record from 08/08/2018 to 12/26/2018 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.30 ft. The record from 12/27/2018 to 06/04/2019 is fair based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 2.1 ft. The record from 06/04/2019 to 08/14/2019 is fair based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 2.0 ft. The record from 08/15/2019 to 12/02/2019 is fair based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 2.0 ft. 

All further remarks can be found in RMS as of 12/03/2019.