USGS Water-Year Summary 2021
373559090082901 National Lead
Ozark Plateaus aquifer system
LOCATION - Lat 37°35'57.4", long 90°08'30.4" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 SW 1/4 sec.34, T.34 N., R.8 E., Perry County, MO, Hydrologic Unit 07140107,
DATUM - Land-surface datum is 992 ft above National Geodetic Vertical Datum of 1929. Measuring point: Undefined, 1.4 ft above land-surface datum, Jul. 18, 1960 to present. --Top of recorder shelf setting on top of casing; 1.4 ft above land surface.
PERIOD OF RECORD - July 22, 1960 to present.
GAGE - Stevens model A-35 chart recorder installed July 18, 1960. Stevens model 7001 digital recorder installed September 29, 1988. June 9, 2000 to present; DCP with float, encoder, and telemetry capability installed as the water level recording and measuring devices.
COOPERATION - Data furnished by Missouri Department of Natural Resources (MDNR); Record from July 18, 1960 to June 9, 2000 furnished from MDNR. Record from June 10, 2000 to present, processed by USGS and MDNR.