USGS Water-Year Summary 2023
370354093325901 Billings
Ozark Plateaus aquifer system
Roubidoux Formation
LOCATION - Lat 37°03'53.4", long 93°32'59.3" referenced to North American Datum of 1983, in SW 1/4 NE 1/4 NW 1/4 sec.10, T.27 N., R.24 W., Christian County, MO, Hydrologic Unit 11010002,
REVISIONS HISTORY -
Revisions: Land-surface datum was revised to 1,360.87 ft NAVD88 on Oct. 4, 2023, as determined by a GNSS survey by Missouri DNR. Land-surface datum was previously published as 1,364 ft NAVD88 from GPS. Discrete water-level measurements referenced to NGVD29 and NAVD88 were revised, based on changes to the land-surface datum.
On August 23, 2010 the record from September 26, 2007 to October 05, 2009 was set back from 'Approved' to 'In Review' by M Kleeschulte and a -2.2 ft measuring point height correction was applied to the entire period of record. This was done to reference the water levels to land surface instead of the measuring point which is the reference in the field.
GROUNDWATER RECORDS
DATUM - Land-surface datum is 1,360.87 ft above North American Vertical Datum of 1988. Measuring point: DNR DCP platform shelf, 2.2 ft above land-surface datum, Jan. 1, 1942 to present.
PERIOD OF RECORD - September 27, 2007 to present. Gage was installed on September 26, 2007.
GAGE - September 26, 2007 to present; DCP with float, encoder, and telemetry capability was installed as the water level recording device. Unit Values begin on September 27, 2007.
COOPERATION - Data furnished by Missouri Department of Natural Resources (MDNR).