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Water-Year Summary for Site 07069190

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Available Parameters
00060 Discharge(Mean)  

Water year 2024: 2024-10-01 to 2025-09-30
 

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USGS Water-Year Summary 2024
07069190 MAMMOTH SPRING AT MAMMOTH SPRING, AR
LOCATION - Lat 36°29'53", long 91°32'08" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 SW 1/4 sec.05, T.21 N., R.5 W., Fulton County, AR, Hydrologic Unit 11010010,
SURFACE-WATER RECORDS
PERIOD OF RECORD - Mar 1981 to current year. Prior to Oct 1992 published under Station Number 07069200. Occasional low-flow measurements made beginning in 1924.
GAGE - Water-stage recorder.  Datum of gage is 501.19 ft above NAVD of 1988, (Reference Frame NAD_83 (2011) (EPOCH:2010.0000) GEOID18). 

Prior to August 05, 2024, the datum of gage was 506 ft NAVD of 1988.  However, was selected from a Topographic Map (5 ft). 

Prior to February 2006, the Datum of gage was 500.90 NGVD of 1929.  

EXTREMES FOR PERIOD OF RECORD -

Maximum Discharge 706 cfs., Gage height 5.13 ft., April 13,1991.

Peak Gage Height 5.25 ft., April 10, 2008, Discharge 694 cfs.