Identification and Treatment of Toxicants in Highway Runoff Using Green Stormwater Infrastructure, Bioassays, and Chemical Fractionation
Project Information
The study is to be conducted by the Washington State University, University of Washington, and National Oceanic and Atmospheric Administration (NOAA) fisheries. The objectives of this research study are: to understand how roadway runoff treatment technologies work with respect to acute toxicants in runoff; and chemically characterize untreated and treated runoff samples to identify toxicants and surrogate/indicator compounds that scale with water quality improvement and may be used to assess treatment performance.
- 27XX532016025M445
- Planning, Environment, and Realty
- FY 2002-2022 / Planning, Environment, and Realty / Accelerating Project Delivery
- Analysis, Modeling, and Simulation
The toxicological assessments of CABS performance generally agreed with the chemical assessments. Toxicity associated with influent water samples was often but not always removed by CABS treatment. Better treatment was found for the field site than the lab system (67% removal of toxicity vs 21%). This difference may be explained by the longer length, longer HRT, and greater infiltration capacity at the field site than in the lab system which was designed primarily to test the surface treatment mechanisms of the CABS.
Impact methodology for WSDOT in designing CABS to attain treatment goals for surface flows
AMRP = Annual Modal Research Plan