USGS Home
Contact USGS
Search USGS

National Water Information System: Web Interface

USGS Water Resources   

Data Category:
Home Current Conditions Site Information Mapper Surface Water Groundwater Water Quality Water Use Revisions Geographic Area:
United States Alabama Alaska American Samoa Arizona Arkansas British Columbia California Canton and Enderbury Islands Colorado Connecticut Delaware Dist. of Columbia Florida Georgia Guam Hawaii Idaho Illinois Indiana Iowa Johnston Atoll Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Midway Islands Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Northern Mariana Islands Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island Ryukyu Islands, Southern South Carolina South Dakota Swan Islands Tennessee Texas Trust Territories, Pacific Is U.S.Misc Caribbean Islands U.S.Misc Pacific Islands Utah Vermont Virgin Islands Virginia Wake Island Washington West Virginia Wisconsin Wyoming

Page Loading - Please Wait...

DESCRIPTION:

Latitude 29°48'10",   Longitude 101°26'45"   NAD27

Val Verde County, Texas, Hydrologic Unit 13070008

Drainage area: 44,015 square miles

Contributing drainage area: 35,179 square miles,

Datum of gage: 1,133.08 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2012-03-09	2025-12-24
Daily Data
Discharge, cubic feet per second	1975-10-01	1985-09-29	2920
Daily Statistics
Discharge, cubic feet per second	1975-10-01	1985-09-29	2920
Monthly Statistics
Discharge, cubic feet per second	1975-10	1985-09
Annual Statistics
Discharge, cubic feet per second	1976	1985
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1971-03-01	2007-08-14	393
Water-Year Summary	2005	2007	3
Revisions	Loading...

OPERATION:

Record for this site is maintained by the USGS Texas Water Science Center

Email questions about this site to Texas Water Science Center Water-Data Inquiries