View information about the program that surface water management developed to help business owners comply with Snohomish County's Water Quality Code and control existing and potential pollution sources or activities in an effort to protect storm, surface, and ground water quality.
Read about the county’s compliance with requirements of the National Pollution Discharge Elimination System, including countywide monitoring, compliance with the water quality law, public outreach, and preparation of the Stormwater Manual, which contains required drainage engineering standards.