Guidance for Evaluation and Implementation of Black Carbon-amended Engineered Media Filtration for Passive Treatment of Stormwater Runoff
Abstract
The purpose of this guidance is to support DoD site managers and Remedial Project Managers in evaluating, designing, and implementing stormwater black carbon-amended media filtration control measures. This guidance addresses the chemicals of concern covered in this study, ER18-1145, namely the representative PFASs perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), and the pesticides atrazine, imidacloprid, and fipronil. While ER18-1145 evaluated more CoCs than this, these compounds were selected because they are representative of the range of studied PFASs and pesticide mobility within BC-amended filter media. PFOS and PFOA were selected among the PFASs because of their regulatory relevance, with PFOS being indicative of less mobile PFASs and PFOA being representative of more mobile PFASs. Atrazine, imidacloprid, and fipronil were chosen because they are indicative of the range in mobility of the studied pesticides, with atrazine and imidacloprid representing moderate relative mobility and fipronil representing high relative mobility. Contaminant mobility within media filters is indicative of the rate at which the filter media is exhausted, with more mobile contaminants causing filter media exhaustion sooner. The report describes a design tool, Treatment Engineered Media Performance and Sizing Tool, (TEMPEST) to inform the selection and design of black carbon-amended stormwater control measures.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 29, 2022
- Accession Number
- AD1216353
Entities
People
- Richard G Luthy
- Yeomyoung Cho
Organizations
- Stanford University