USGS 14182500 LITTLE NORTH SANTIAM RIVER NEAR MEHAMA, OR

PROVISIONAL DATA SUBJECT TO REVISION

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Station operated in cooperation with the U.S. Army Corps of Engineers.

NOTE: River forecasts and additional data can be obtained at the 
National Weather Service's Advanced Hydrologic Prediction Services web page.

NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.
Boating safety tips
Available Parameters Available Period
  
2007-10-01  2025-12-29
1988-10-01  2025-12-29
2007-10-01  2025-12-29
2007-10-01  2025-12-29
2009-01-17  2025-12-29
2007-10-01  2025-12-29
2022-12-29  2025-12-29
2024-08-22  2025-12-29
2022-12-29  2025-07-14
2022-12-29  2024-08-22
2024-08-22  2025-12-29
2007-10-01  2015-12-06
2021-06-30  2025-12-29







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius
Most recent instantaneous value: 5.9 12-29-2025   10:00 PST
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Discharge, cubic feet per second
Most recent instantaneous value: 701 12-29-2025   11:00 PST
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Daily discharge, cubic feet per second -- statistics for Dec 29 based on 93 water years of record more
Min
(1994)		 25th
percen-
tile		 Most Recent
Instantaneous
Value Dec 29		 Median Mean 75th
percen-
tile		 Max
(1938)
153 502 701 874 1400 1530 7990

Gage height, feet
Most recent instantaneous value: 4.52 12-29-2025   11:00 PST
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
Most recent instantaneous value: 28 12-29-2025   10:00 PST
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Dissolved oxygen, water, unfiltered, milligrams per liter
Most recent instantaneous value: 12.4 12-29-2025   10:00 PST
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pH, water, unfiltered, field, standard units
Most recent instantaneous value: 7.2 12-29-2025   10:00 PST
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Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE)
Most recent instantaneous value: 6.80 12-29-2025   10:00 PST
Graph of Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE)

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Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU)
Most recent instantaneous value: 1.03 12-29-2025   10:00 PST
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Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll
 
-- Data temporarily unavailable for the time period specified --

Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin
 
-- Data temporarily unavailable for the time period specified --

Phycocyanin relative fluorescence (fPC), water, in situ, relative fluorescence units (RFU)
Most recent instantaneous value: 0.37 12-29-2025   10:00 PST
Graph of Phycocyanin relative fluorescence (fPC), water, in situ, relative fluorescence units (RFU)

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)
Most recent instantaneous value: 2.5 12-29-2025   10:00 PST
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [(2)]
 
-- Data temporarily unavailable for the time period specified --