USGS Water-Year Summary for Site 08167500

Click to hide Water-Year Summary instructions and information

Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
Not all sites have reports available for every water year.

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

Select a water year

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

Print this page

USGS Water-Year Summary 2024

08167500 Guadalupe River near Spring Branch, TX

LOCATION - Lat 29°51'37", long 98°23'00" referenced to North American Datum of 1927, Comal County, TX, Hydrologic Unit 12100201, on left bank, 15 ft downstream from bridge on Ranch Road 311, 1.9 mi southeast of Spring Branch Post Office, 7.5 mi downstream from Curry Creek, and at mile 334.4.

DRAINAGE AREA - 1,315 mi².

REVISIONS HISTORY - WSP 1562: 1923-24, 1926, 1927-28(M), 1929, 1930(M). WSP 2123: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 1922 to current year. PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Mar. 1964, Nov. 1980 to Sept. 1982, Oct. 1989 to June 1998. BIOCHEMICAL DATA: Mar. 1964, Nov. 1980 to Sept. 1982, Oct. 1989 to June 1998. BIOLOGICAL DATA: Aug. 1995 to June 1998. PESTICIDE DATA: Aug. 1995 to Dec. 1996, Oct. 1997 to June 1998. RADIOCHEMICAL DATA: May 1981 to Dec. 1996. SEDIMENT DATA: Aug. 1995 to June 1998. STABLE ISOTOPE DATA: Feb. 1998.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 948.43 ft above NAVD88 from 08/14/23 to current. Datum was 948.10 ft above NGVD of 1929 from Jan. 14, 1981 to 08/14/23. Prior to Jan. 14 1981 the site was 220 ft downstream at same datum. Satellite telemeter at station.

REMARKS - Water Year records good. Several small diversions above station for irrigation. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.

EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since at least 1859, about 53 ft in 1869; flood in July 1900 reached a stage of about 49 ft, from information by local resident.

EXTREMES FOR PERIOD OF RECORD - Maximum peak flow from indirect measurement, 60,000 cfs on Aug 3, 1978. Maximum peak stage from flood mark, 45.25 ft on Aug 3, 1978.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Mar. 1964, Nov. 1980 to Sept. 1982, Oct. 1989 to June 1998. BIOCHEMICAL DATA: Mar. 1964, Nov. 1980 to Sept. 1982, Oct. 1989 to June 1998. BIOLOGICAL DATA: Aug. 1995 to June 1998. PESTICIDE DATA: Aug. 1995 to Dec. 1996, Oct. 1997 to June 1998. RADIOCHEMICAL DATA: May 1981 to June 1981, Feb. 1998 SEDIMENT DATA: Aug. 1995 to June 1998.