USGS Water-Year Summary for Site 08102500

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	Available Parameters
	00060 Discharge(Max.,Min.,Mean)
	00065 Gage height(Mean)

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

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USGS Water-Year Summary 2024

08102500 Leon River near Belton, TX

LOCATION - Lat 31°04'12", long 97°26'28" referenced to North American Datum of 1927, Bell County, TX, Hydrologic Unit 12070201, on left bank 1,400 ft upstream from bridge on Farm Road 817, 2,000 ft upstream from concrete dam, 1.0 mi upstream from bridge on Interstate Highway 35 and U.S. Highway 81, 1.6 mi northeast of Belton, 3.2 mi downstream from Belton Dam, 5.2 mi upstream from Nolan Creek, and 13.1 mi upstream from mouth.

DRAINAGE AREA - 3,582 mi².

REVISIONS HISTORY - WSP 1442: 1925(M), 1935(M), 1936, 1938(M), 1941-42(M), 1944-45(M). WSP 1712: 1937(M). WDR TX-76-2: Drainage area. WRD TX-2008: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Oct. 1923 to current year. PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Mar. 1961 to Aug. 1964, Jan. 1994 to Aug. 1998. BIOCHEMICAL DATA: Mar. 1961 to Aug. 1964, Jan. 1994 to Aug. 1998. PERIOD OF DAILY RECORD, Water-Quality.-- WATER TEMPERATURE: Mar. 1957 to Oct. 1972.

GAGE -

Water-stage recorder and concrete dam. Satellite telemetry at station.

Datum of the gage: 476.63 ft NAVD88 based on a Level 2 Static GNSS survey processed through OPUS, Ref Frame NAD83 (2011)(EPOCH:2010.0000) ITRF2014 (EPOCH:2024.3273) and Geoid 18. The survey was completed on April 29th, 2024 while occupying a TRM that was referenced to local gage datum via differential levels.

Prior to April 29th, 2024, the datum of the gage was 476.68 ft NGVD29. Prior to May 21, 1931, nonrecording gage.

REMARKS - Records good except for discharges below 10 ft³/s, which are poor. Since Mar. 1954, at least 10% of contributing drainage area has been regulated. The city of Temple diverts water from the pool at gage and returns wastewater effluent to Little Elm Creek downstream from station. The Brazos River Authority returns wastewater effluent to the Leon River downstream from station for their Temple-Belton plant. No flow at times. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood in Dec. 1913 reached a stage of 25 ft, and a flood in Sept. 1921 reached a stage of 21 ft, from information by local residents.

EXTREMES FOR PERIOD PRIOR TO REGULATION - WATER YEARS, 1924-1953: Maximum discharge, 56,500 ft³/s Apr. 22, 1945 (gage height, 24.41 ft). No flow at times.

AVERAGE DISCHARGE FOR PERIOD PRIOR TO REGULATION - 30 years (water years 1924-53) prior to regulation by Belton Lake, 659 ft³/s (477,400 acre-ft/yr).