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DESCRIPTION:

Latitude 47°16'30",   Longitude 122°12'24"   NAD27

King County, Washington, Hydrologic Unit 17110014

Drainage area: 474 square miles

Datum of gage: 3.66 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2009-10-01	2025-12-31
Daily Data
Temperature, water, degrees Celsius	2010-05-27	2025-12-30	16508
Discharge, cubic feet per second	2009-09-30	2025-12-30	5936
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2010-05-27	2025-12-30	14324
Dissolved oxygen, water, unfiltered, milligrams per liter	2010-06-25	2025-12-30	15338
pH, water, unfiltered, field, standard units	2010-05-27	2025-12-30	15154
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2010-05-27	2021-07-06	10054
Daily Statistics
Temperature, water, degrees Celsius	2010-05-27	2025-01-22	5192
Discharge, cubic feet per second	2009-09-30	2025-07-10	5763
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2010-05-27	2025-01-22	4477
Dissolved oxygen, water, unfiltered, milligrams per liter	2010-06-25	2025-01-22	4808
Monthly Statistics
Temperature, water, degrees Celsius	2010-05	2025-01
Discharge, cubic feet per second	2009-09	2025-07
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2010-05	2025-01
Dissolved oxygen, water, unfiltered, milligrams per liter	2010-06	2025-01
Annual Statistics
Temperature, water, degrees Celsius	2010	2025
Discharge, cubic feet per second	2009	2025
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2010	2025
Dissolved oxygen, water, unfiltered, milligrams per liter	2010	2025
Peak streamflow	2010-06-03	2023-12-06	15
Field measurements	2009-04-16	2025-12-23	133
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1986-01-19	2011-01-20	156
Water-Year Summary	2010	2024	15
Revisions	Loading...

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