Reports and Regulations
Seattle must meet state and federal regulatory requirements in order to comply with the Clean Water Act. Seattle developed a 2010 CSO Reduction Plan Amendment (pdf) to describe the effort to reduce CSOs.
The program is regulated via National Pollutant Discharge Elimination System (NPDES) permits.
One requirement in the current permit is to provide realtime online reporting of overflows in Seattle.
The permit also requires monthly and annual reports of overflows in Seattle. All documents are in PDF format.
2015 Monthly Reports
2014 Monthly Reports