USGS Water-Year Summary for Site 390150090542801

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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

390150090542801 Cuivre River State Park

Cambrian-Ordovician aquifer system

LOCATION - Lat 39°01'50", long 90°54'28" referenced to North American Datum of 1983, Lincoln County, MO, Hydrologic Unit 07110008,

REVISIONS HISTORY - Revisions: Land-surface datum was updated to 677.92 ft NAVD88 on May 22, 2023, as determined by a GNSS survey by Missouri DNR. Land-surface datum was previously published as 681 ft NAVD88 from digital elevation model. Discrete water-level measurements prior to May 22, 2023, are referenced to the original datum.

GROUNDWATER RECORDS

DATUM - Land-surface datum is 677.92 ft above North American Vertical Datum of 1988. Measuring point: unknown, 2.3 ft above land-surface datum, Jun. 18, 2013 to present.

PERIOD OF RECORD - The period of record is from 06/18/2013 to the present.

GAGE - From 06/18/2013 to 07/08/2014 the measuring device was a float and encoder setting in metal box on top of casing. Water level recording device is a DCP with telemetry capability. From 07/08/2014 to the present, the measuring device is a vented submersible pressure transducer.

COOPERATION - Data furnished by Missouri Department of Natural Resources (MDNR); Record from 06/18/2013 to present furnished from MDNR. Record from 06/18/2013 to present, processed by USGS and MDNR.

REMARKS -

.--The record from 06/18/2013 to 01/01/2015 is fair based on 5 water level measurements made during the period to verify the recorded data and is accurate to +/- 1.00 ft. Gage started out with a float/encoder but changed to a pressure transducer. Well is a new site so it may not be straight or has a lot of scale in it which was a problem with float. Transducer seemed to drift over time also.

The record from 01/02/2015 to 07/12/2016 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 07/13/2016 to 11/15/2016 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 11/16/2016 to 07/26/2017 is good based on 2 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.10 ft. It appears that near by pumping may have impacted the water level on 04/05/2017 and 07/18/2017, as there was a rapid change in water level on those dates. The record from 07/26/2017 to 01/30/2018 is good based on 1 water level measurements made during the period to verify the recorded data and is accurate to +/- 0.05 ft. The record from 01/31/2018 to 08/21/2018 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 08/22/2018 to 02/26/2019 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 02/27/2019 to 03/25/2019 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 03/26/2019 to 09/10/2019 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 09/11/2019.