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DESCRIPTION:

Latitude 32°48'44",   Longitude 114°30'51"   NAD27

Imperial County, California, Hydrologic Unit 15030107

Drainage area: 188,600 square miles

Contributing drainage area: 184,600 square miles,

Datum of gage: 120.81 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1987-10-01	2017-06-27
Daily Data
Discharge, cubic feet per second	1971-12-16	2017-06-26	16630
Daily Statistics
Discharge, cubic feet per second	1971-12-16	2017-04-29	16572
Monthly Statistics
Discharge, cubic feet per second	1971-12	2017-04
Annual Statistics
Discharge, cubic feet per second	1972	2017
Field measurements	1984-10-04	2017-06-09	508
Field/Lab water-quality samples	1972-07-17	1995-06-13	440
Water-Year Summary	2006	2016	11
Additional Data Sources	Begin Date	End Date	Count
Instantaneous-Data Archive  **offsite**	1987-10-01	2006-09-30	360846

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