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DESCRIPTION:

Latitude 47°50'15",   Longitude 121°39'56"   NAD27

Snohomish County, Washington, Hydrologic Unit 17110009

Drainage area: 535 square miles

Datum of gage: 209.26 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1987-10-01	2017-09-25
Daily Data
Discharge, cubic feet per second	1928-10-01	2017-09-24	32501
Gage height, feet	1985-06-04	2017-09-24	11287
Daily Statistics
Discharge, cubic feet per second	1928-10-01	2017-01-30	32264
Gage height, feet	1985-06-04	2017-01-30	11050
Monthly Statistics
Discharge, cubic feet per second	1928-10	2017-01
Gage height, feet	1985-06	2017-01
Annual Statistics
Discharge, cubic feet per second	1929	2017
Gage height, feet	1985	2017
Peak streamflow	1928-10-09	2015-11-17	88
Field measurements	1932-02-27	2017-08-03	223
Field/Lab water-quality samples	1947-08-25	1980-06-09	84
Water-Year Summary	2006	2016	11

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