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DESCRIPTION:

Latitude 27°24'01",   Longitude 99°29'18"   NAD27

Webb County, Texas, Hydrologic Unit 13080002

Drainage area: 132,578 square miles

Contributing drainage area: 132,578 square miles,

Datum of gage: 335 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1997-10-21	2007-09-30
Daily Data
Discharge, cubic feet per second	1997-09-27	2007-10-21	10723
Daily Statistics
Discharge, cubic feet per second	1997-09-27	2007-10-21	3677
Monthly Statistics
Discharge, cubic feet per second	1997-09	2007-10
Annual Statistics
Discharge, cubic feet per second	1997	2008
Peak streamflow	1999-08-26	2007-05-26	7
Field measurements	1998-02-24	2007-10-22	73
Field/Lab water-quality samples	1977-04-11	2007-09-12	135
Water-Year Summary	2005	2007	3
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