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DESCRIPTION:

Latitude 45°30'04",   Longitude 122°51'03"   NAD27

Washington County, Oregon, Hydrologic Unit 17090010

Drainage area: 22.7 square miles

Datum of gage: 160.00 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2007-10-01	2025-08-05
Daily Data
Temperature, water, degrees Celsius	2001-05-12	2025-08-05	25281
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001-05-12	2025-08-05	25236
Dissolved oxygen, water, unfiltered, milligrams per liter	2001-05-12	2025-08-05	24659
pH, water, unfiltered, field, standard units	2001-05-12	2025-08-05	25100
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2002-04-25	2025-08-05	23297
Daily Statistics
Temperature, water, degrees Celsius	2001-05-12	2024-12-22	8197
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001-05-12	2024-12-22	8184
Dissolved oxygen, water, unfiltered, milligrams per liter	2001-05-12	2024-12-22	7989
Monthly Statistics
Temperature, water, degrees Celsius	2001-05	2024-12
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001-05	2024-12
Dissolved oxygen, water, unfiltered, milligrams per liter	2001-05	2024-12
Annual Statistics
Temperature, water, degrees Celsius	2001	2025
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001	2025
Dissolved oxygen, water, unfiltered, milligrams per liter	2001	2025
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1994-08-30	2022-12-12	583
Water-Year Summary	2014	2024	11
Revisions	Loading...

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