USGS Water-Year Summary 2021
Mississippi River Valley alluvial aquifer
LOCATION - Lat 36°29'58.2", long 89°58'18.8" referenced to North American Datum of 1983, in sec.34, T.22 N., R.10 E., Dunklin County, MO, Hydrologic Unit 08020204,
DATUM - Land-surface datum is 287 ft above National Geodetic Vertical Datum of 1929. Measuring point: Undefined, 1.5 ft above land-surface datum, Aug. 8, 1956 to present.
PERIOD OF RECORD - August 8, 1956 to present.
GAGE - Stevens model 7001 digital recorder installed August 8, 1956. May 4, 2000 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); Record from August 8, 1956 to May 4, 2000 furnished from MDNR.