Study Details

Study ID:  MROS0001

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Study Basics

Study IDMROS0001
Study NameSammamish River Temperature and Dissolved Oxygen TMDL
EIM Data Entry Review StatusReviewed
Study TypeTotal Maximum Daily Load (TMDL) development
Study PurposeTo collect mainstem and tributary flow, temperature, dissolved oxygen, nutrient, and related parameters for the Sammamish River for future TMDL or alternative development.
Field Collection Date Range6/1/2015 - 10/17/2015
Data First/Last Loaded Date
Data Last Updated Date
Ecology Program or Other Responsible EntityEcy Environmental Assessment Program
Ecology ContactMeghan Rosewood-Thurman
Ecology Monitoring Program
Submitting OrganizationWA Department of Ecology
Study QA Planning LevelLEVEL 3: QAPP, SAP, or Equivalent.
Study QA Project Plan DescriptionSeveral reaches of the Sammamish River are not meeting the criteria in the state’s surface water quality standards for temperature and dissolved oxygen (DO). Cool temperatures and high DO are necessary to protect aquatic life and salmonid habitat. The purpose of the study and plan is to identify pollution sources, determine pollutant levels that will meet state standards, and implement actions to reduce pollution. Ecology will collect field data from June through September 2015 and will use these data to develop and calibrate a numeric water quality model to simulate continuous temperature, DO, and other water quality parameters in the Sammamish River. Ecology will then use the model to determine the maximum allowable level of heat loads and nutrient inputs that are needed for the river to be in compliance with water quality standards.
Study QA Assessment LevelLevel 3: Data Verified and Assessed for Usability
Study Result DescriptionMost data for this study were loaded 6 years after collection. Changes to data loaded before 2021 are recorded in the EAP EIM Data Entry Review Checklist and pending technical memo. Data were reviewed for accuracy based on field data sheets, raw data files, and data coordinator notes. Any data derived using assumptions or that fell outside limits defined in the QAPP guidelines are qualified and explanations are entered as result comments.
Study Comment
Linked Study
Ecology Funding Number
Ecology Facility/Site ID
Ecology Cleanup Site ID
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Study Data Summary (Record Count or Type)