| Study ID | RJAC005 |
| Study Name | Sediment Toxicity near Gas Works Park, Seattle |
| EIM Data Entry Review Status | Reviewed |
| Study Type | General environmental study |
| Study Purpose | Sediments were analized using chronic bioassays at eleven Lake Union and two reference sites on Lake Washington. |
| Field Collection Date Range | 3/13/2002 - 7/16/2002 |
| Data First/Last Loaded Date |  |
| Data Last Updated Date | |
| Ecology Program or Other Responsible Entity | Ecy Environmental Assessment Program |
| Ecology Contact | Richard Jack |
| Ecology Monitoring Program | |
| Submitting Organization | |
| Study QA Planning Level | LEVEL 4: Approved QAPP or SAP. |
| Study QA Project Plan Description | |
| Study QA Assessment Level | Level 5: Data Verified and Assessed for Usability in a Peer-Reviewed Study Report |
| Study Result Description | Some of the bioassay data is qualified with dissolved oxygen and temperature deviations from recommended protocols. These deviations are not expected to have influenced the results. Also the bioassay positive control had an LC50 greater than 4000µg/L of Cu, well beyond the control limits. In fact in all replicates for the positive control more than 80% of the chironomids survived. This deviation is not expected to influence the results since test sediments experienced reductions in survival when compared to the reference or control. |
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