Addendum to Quality Assurance Project Plan: Flame Retardants in Ten Washington State Waterbodies, is available at

https://fortress.wa.gov/ecy/publications/SummaryPages/1803102.html 

Ecology’s PBT Monitoring Program regularly conducts studies to determine environmental levels and trends of chemicals that have been addressed by chemical action plans (CAPs).  This monitoring program also conducts research into emerging contaminants that may need to be addressed by future CAPs or other agency actions to reduce toxic threats.  Ecology is currently carrying out a study in 2017/2018 to quantitatively analyze legacy and current use flame retardants in surface water, sediment, and fish tissue in Washington State waterbodies (original QAPP, Mathieu, 2017).  For this study, target analytes in freshwater fish tissue collected from three locations include halogenated flame retardants and PBDEs.

This QAPP addendum documents an additional project component to collect more information on potential halogenated compounds present in fish tissue collected from the following waterbodies: Lake Ozette, Lake Spokane, and Lake Washington.  Ecology will send a total of six fillet tissue samples to the laboratory of University of Washington – Tacoma (UWT) Center for Urban Waters (CUW) for non-targeted screening of anthropogenic halogenated compounds by quadrupole time of flight liquid chromatography tandem mass spectrometry (QTOF LC-MS/MS).  The non-targeted screening will seek to identify a large range of potential PBT chemicals present in the fish tissue samples.  This information will help inform and prioritize target analyte lists in future monitoring studies.

If you have questions, contact Callie Mathieu at 360-407-6965 or came461@ecy.wa.gov.

Diana Ruth Olegre
Web Coordinator and SharePoint Site Collection Administrator
Washington State Department of Ecology
Environmental Assessment Program 

diana.olegre@ecy.wa.gov
360-407-6696