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DESCRIPTION:

Latitude 45°23'59",   Longitude 122°08'10"   NAD27

Clackamas County, Oregon, Hydrologic Unit 17080001

Drainage area: 264 square miles

Datum of gage: 0.00 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	1911-09-01	2017-09-23	38193
Daily Statistics
Discharge, cubic feet per second	1911-09-01	2016-10-25	37860
Monthly Statistics
Discharge, cubic feet per second	1911-09	2016-10
Annual Statistics
Discharge, cubic feet per second	1911	2017
Peak streamflow	1912-01-13	2015-12-07	105
Field measurements	1972-01-20	2017-08-14	203
Field/Lab water-quality samples	1958-10-31	2006-09-05	33
Water-Year Summary	2006	2016	11

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