USGS Water-Year Summary for Site 383628090411901

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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

383628090411901 Babler State Park

Ozark Plateaus aquifer system
Champlainian Series

LOCATION - Lat 38°36'28.6", long 90°42'32.2" referenced to North American Datum of 1983, in SW 1/4 SE 1/4 sec.29, T.45 N., R.3 E., St. Louis County, MO, Hydrologic Unit 10300200,

REVISIONS HISTORY - Revisions: Land-surface datum was updated to 541.73 ft NAVD88 on May 22, 2023, as determined by a GNSS survey by Missouri DNR. Land-surface datum was previously published as 540 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 541.73 ft above North American Vertical Datum of 1988. Measuring point: unknown, 2.2 ft above land-surface datum, Jun. 17, 2008 to present.

PERIOD OF RECORD - June 17, 2008 to present.

GAGE - June 17, 2008 to present; DCP with float, encoder, and telemetry capability were 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 -

Data from June 17, 2008 to December 08, 2009 is good based on 12 water level measurements made during this period to verify recorded water levels. The record from 12/09/2009 to 04/14/2010 is good based on 2 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.2 ft, because the float appears to be non-responsive at times. At times float appears to free itself after the gage house lid is disturbed when opening. The record from 04/14/2010 to 06/01/2011 is good based on 5 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.1 ft. The record from 06/01/2011 to 07/22/2012 is good based on 5 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.1 ft. At times the float appears to stick in the well. The record from 07/23/2012 to 07/15/2013 is fair 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 07/16/2013 to 01/05/2015 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 01/06/2015 to 07/11/2016 is good based on 4 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 07/12/2016 to 07/25/2017 is good based on 2 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.10 ft. The record from 07/25/2017 to 01/22/2018 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 01/23/2018 to 08/27/2018 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 08/28/2018 to 03/19/2019 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.25 ft. The record from 03/20/2019 to 10/01/2019 is good based on 1 water level measurement made during the period to verify the recorded data and is accurate to +/- 0.10 ft.

All further remarks can be found in RMS as of 10/02/2019.