USGS Water-Year Summary 2023

371548093144701 Valley Water Mills Springfield Plateau Aquifer

Ozark Plateaus aquifer system
Osagean Series

LOCATION - Lat 37°15'47.6", long 93°14'47.4" referenced to North American Datum of 1983, in SE 1/4 NE 1/4 sec.05, T.29 N., R.21 W., Greene County, MO, Hydrologic Unit 10290106,

REVISIONS HISTORY -
Revisions: Land-surface datum was revised to 1,220.49 ft NAVD88 on Oct. 4, 2023, as determined by a GNSS survey by Missouri DNR. Land-surface datum was previously published in error as 1,212 ft NAVD88 from topographic map. Discrete water-level measurements referenced to NGVD29 and NAVD88 were revised, based on changes to the land-surface datum.

The record from 02/24/2010 to 09/28/2010 was modified after it was previously set to 'Approved'. A prorated correction from 0.02 to 0.04 ft was applied to the period. After further data became available, it was apparent the gage reset on 09/28/2010 was unnecessary so its affects were removed. The 0.02 to 0.04 ft prorated correction was removed.

GROUNDWATER RECORDS

DATUM - Land-surface datum is 1,220.49 ft above North American Vertical Datum of 1988. Measuring point: unknown, 1.2 ft above land-surface datum, Mar. 22, 2007 to present.  

PERIOD OF RECORD - March 22, 2007 to present.

GAGE - March 22, 2007 to present; DCP with telemetry capability, and float and encoder installed as the water level recording and measuring devices.

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

REMARKS -

The data from March 22, 2007 to September 30, 2008 is good based on 6 water level measurements made during the period to verify the data and is accurate to +/- 0.05 ft. The data from October 1, 2008 to February 24, 2010 is good based on 5 water level measurements made during the period to verify the data and is accurate to +/- 0.05 ft. The data from February 24, 2010 to September 29, 2010 is good based on 3 water level measurements made during the period to verify the data and is accurate to +/- 0.05 ft. The data from September 29, 2010 to October 12, 2011 is good based on 5 water level measurements made during the period to verify the data and is accurate to +/- 0.05 ft. The record from 10/12/2011 to 08/29/2012 is good based on 4 water level measurements made during the period to verify the data and is accurate to +/- 0.05 ft. The record from 08/29/2012 to 10/01/2013 is good based on 4 water level measurements made during the period to verify the data and is accurate to +/- 0.05 ft. The record from 10/02/2013 to 12/10/2014 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 12/11/2014 to 04/04/2016 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 04/05/2016 to 09/27/2016 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 09/28/2016 to 04/03/2017 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 04/04/2017 to 12/12/2017 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 12/13/2017 to 03/28/2018 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 03/29/2018 to 05/22/2018 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 05/23/2018 to 09/24/2018 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 09/25/2018 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 01/10/2019 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 +/- 0.05 ft. The record from 06/26/2019 to 09/09/2019 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.05 ft. 

All further remarks can be found in RMS as of 09/10/2019.