Feb. 16, 2018 Ecology seeks water quality assessment data

Ecology is seeking new data and information collected from fresh and marine waters in Washington to be used in the next Water Quality Assessment. This call-for data applies to data and information collected within the ten year period between Jan. 1, 2008 and Dec. 31, 2017. An initial call-for-data was conducted in February 2016 to seek data up through December 2015. If you submitted data to us previously for use in the Water Quality Assessment it does not need to be submitted again.


Information on submitting data for use in the Water Quality Assessment can also be found on our website.


The deadline for submitting water quality data is 11:59 p.m. on March 28, 2018.


How to Submit Data?

Numeric water quality data should be submitted into Ecology’s Environmental Information Management (EIM) database.


·         Information on how to use EIM is available on the EIM website

·         Questions? Contact: Jake Kleinknecht, phone 360-407-6562


Narrative information that provides conclusive evidence that a beneficial water use is being impaired can be submitted by email to or by mail to:


Patrick Lizon, Water Quality Program

Department of Ecology

PO Box 47600

Olympia, WA 98504-7600.


Purpose of the Water Quality Assessment

We periodically gather and use readily-available water quality data to determine if waterbodies are polluted. This process – and the lists it generates – is called Washington’s Water Quality Assessment, and is used to meet federal Clean Water Act requirements under Sections 303(d) and 305(b). 



If you have questions on submitting data, please contact: Patrick LizonWater Quality Program, phone 360-407-6782.