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DESCRIPTION:

Latitude 45°30'39.75",   Longitude 123°06'52.01"   NAD27

Washington County, Oregon, Hydrologic Unit 170900100103

Datum of gage: 70.0 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2010-10-01	2025-08-28
Daily Data
Temperature, water, degrees Celsius	2001-05-09	2025-08-28	23068
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001-05-10	2025-08-27	22180
Dissolved oxygen, water, unfiltered, milligrams per liter	2001-05-09	2025-08-28	22207
pH, water, unfiltered, field, standard units	2001-05-12	2025-08-28	22632
Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE)	2023-01-11	2025-08-27	2832
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2002-05-09	2025-08-27	21268
Daily Statistics
Temperature, water, degrees Celsius	2001-05-09	2024-12-30	7444
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2001-05-10	2024-12-30	7139
Dissolved oxygen, water, unfiltered, milligrams per liter	2001-05-09	2024-12-30	7155
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)	2022-01-11	2022-01-11	2
Water-Year Summary	2014	2024	11
Revisions	Loading...

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