Station Notes
This station has two turbidity
sensors that use different methods for measuring turbidity.
Turbidity values from these sensors are not directly comparable and
it is common for the sensors to produce different readings. Due to
extreme sediment conditions in the Elwha River, reported DTS-12
values above 1,000 FNU may be subject to reduced accuracy. For
turbidity conditions greater than 1,000 FNU, refer to available
data from the Analite sensor.
On January 27, 2017, Turbidity,
water, unfiltered, monochrome near infra-red LED light source,
780-900 nm, detection angle 0-45 degrees to incident light
(backscatter), FBU, [ANA] records were revised for Sept. 18, 2013
to Sept. 30, 2014. (Message posted January 30,
2017)
Turbidity, stage data
collection, and gaging station photos have been discontinued
starting October 1, 2019 due to a lack of funding. If
you have questions, please contact the Western Washington Field
Office Chief at gs-w-wa_wwfoc@usgs.gov.
