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DESCRIPTION:

Latitude 45°18'00",   Longitude 122°21'10"   NAD27

Clackamas County, Oregon, Hydrologic Unit 17090011

Drainage area: 671 square miles

Datum of gage: 286.93 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1986-10-01	2024-12-01
Daily Data
Temperature, water, degrees Celsius	2001-07-12	2024-12-01	24749
Precipitation, total, inches -- Faraday Lake precip	2010-09-30	2024-11-30	4211
Discharge, cubic feet per second	1908-04-01	2024-11-30	42613
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001-07-12	2024-12-01	24681
Dissolved oxygen, water, unfiltered, milligrams per liter	2001-07-12	2024-12-01	24663
pH, water, unfiltered, field, standard units	2001-07-12	2024-12-01	24870
Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU)	2024-03-16	2024-12-01	783
Phycocyanin relative fluorescence (fPC), water, in situ, relative fluorescence units (RFU)	2024-03-13	2024-12-01	791
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2001-07-12	2024-12-01	24281
Daily Statistics
Temperature, water, degrees Celsius	2001-07-12	2024-02-12	7951
Discharge, cubic feet per second	1908-04-01	2023-10-05	42191
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001-07-12	2022-10-17	7447
Dissolved oxygen, water, unfiltered, milligrams per liter	2001-07-12	2022-10-17	7439
Monthly Statistics
Temperature, water, degrees Celsius	2001-07	2024-02
Discharge, cubic feet per second	1908-04	2023-10
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001-07	2022-10
Dissolved oxygen, water, unfiltered, milligrams per liter	2001-07	2022-10
Annual Statistics
Temperature, water, degrees Celsius	2001	2024
Discharge, cubic feet per second	1908	2024
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001	2023
Dissolved oxygen, water, unfiltered, milligrams per liter	2001	2023
Peak streamflow	1909-01-20	2022-11-05	115
Field measurements	1967-12-26	2024-11-29	244
Field/Lab water-quality samples	1996-06-08	2021-09-14	121
Water-Year Summary	2006	2023	18
Revisions	Loading...

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