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DESCRIPTION:

Latitude 45°22'46",   Longitude 122°34'34"   NAD27

Clackamas County, Oregon, Hydrologic Unit 17090011

Drainage area: 940 square miles

Datum of gage: 0.00 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2001-06-09	2024-11-21
Daily Data
Temperature, water, degrees Celsius	2002-06-21	2024-11-21	24441
Discharge, cubic feet per second	2001-06-01	2024-11-18	8572
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2002-06-21	2024-11-20	24362
Dissolved oxygen, water, unfiltered, milligrams per liter	2002-06-21	2024-11-21	24236
pH, water, unfiltered, field, standard units	2002-06-21	2024-11-21	24174
Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU)	2024-03-13	2024-11-20	759
Phycocyanin relative fluorescence (fPC), water, in situ, relative fluorescence units (RFU)	2024-03-13	2024-11-20	759
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2002-06-21	2024-11-20	24140
Daily Statistics
Temperature, water, degrees Celsius	2002-06-21	2022-10-24	7384
Discharge, cubic feet per second	2001-06-01	2023-10-03	8160
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2002-06-21	2022-10-24	7355
Dissolved oxygen, water, unfiltered, milligrams per liter	2002-06-21	2022-10-24	7315
Monthly Statistics
Temperature, water, degrees Celsius	2002-06	2022-10
Discharge, cubic feet per second	2001-06	2023-10
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2002-06	2022-10
Dissolved oxygen, water, unfiltered, milligrams per liter	2002-06	2022-10
Annual Statistics
Temperature, water, degrees Celsius	2002	2023
Discharge, cubic feet per second	2001	2024
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2002	2023
Dissolved oxygen, water, unfiltered, milligrams per liter	2002	2023
Peak streamflow	2002-04-14	2022-11-05	22
Field measurements	2001-06-21	2024-10-16	150
Field/Lab water-quality samples	2012-07-19	2021-09-01	98
Water-Year Summary	2006	2023	18
Revisions	Loading...

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