| Study ID | MROS0001 |
| Study Name | Sammamish River Temperature and Dissolved Oxygen TMDL |
| EIM Data Entry Review Status | Reviewed |
| Study Type | Total Maximum Daily Load (TMDL) development |
| Study Purpose | To 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 Range | 6/1/2015 - 10/17/2015 |
| Data First/Last Loaded Date |  |
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| Ecology Program or Other Responsible Entity | Ecy Environmental Assessment Program |
| Ecology Contact | Meghan Rosewood-Thurman |
| Ecology Monitoring Program | |
| Submitting Organization | WA Department of Ecology (internal) |
| Study QA Planning Level | LEVEL 3: QAPP, SAP, or Equivalent. |
| Study QA Project Plan Description | Several 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 Level | Level 3: Data Verified and Assessed for Usability |
| Study Result Description | Most 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. |
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