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Available data

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Continuous data

4 data types available - data from 2007-10-01 to 2026-08-22

Daily data

0 data types available

Field measurements

2 data types available - data from 1987-11-03 to 2026-06-30

Discrete sample data

34 Observed properties (data types) available - with data from 1965-04-05 to 1984-05-04

15 Sampling activities

Statistical tables for select daily data types

0 data types available

Important information about this monitoring location

Datum of gage has been determined to be 0.00 feet above NGVD 29. To obtain reservoir water-surface elevations in NAVD 1988 add 0.10 feet to NGVD29 Elevation values

Location details and information

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Operated in cooperation with:

US Army Corps of Engineers - Fort Worth District

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	08134500	n/a
Location name	O. C. Fisher Lk at San Angelo, TX	n/a
Site type	Lake, Reservoir, Impoundment	LK
Decimal latitude (WGS84)	31.4846047523448	n/a
Decimal longitude (WGS84)	-100.481761581194	n/a
Latitude-longitude method	Interpolated from map	M
Latitude-longitude accuracy	Accurate to + or - 5 sec.	F
District	Texas	48
State	Texas	48
County	Tom Green County	451
Country	United States of America	n/a
Altitude of gage/land surface	0	n/a
Method altitude determined	Reported method of determination.	R
Altitude accuracy	1 feet	n/a
Altitude datum	National Geodetic Vertical Datum of 1929	NGVD29
Subbasin hydrologic unit	North Concho	12090104
Drainage basin		n/a
Date of first construction		n/a
Drainage area	1488 square miles	n/a
Contributing drainage area	1383 square miles	n/a
Time zone abbreviation	CST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a

Monitoring location O. C. Fisher Lk at San Angelo, TX - USGS-08134500