KingCounty.gov is an official government website. Here's how you knowexpand_moreexpand_less
Website addresses ending in .gov belong to official government organizations in the United States.
A lock lock or https:// means you've safely connected to the .gov website. Only share sensitive information on official, secure websites.
We currently offer language translations on our site primarily through Google Translate. This helps visitors find and use information in the languages they speak, but the tool is not perfect. Automated translation may be inaccurate or errors may display on translated pages.
Google Translate is an external website. King County does not control the quality or accuracy of translated content.
Please choose a language
Map of King County stream monitoring sites providing access to water quality and land use data. Explore trends over time, compare findings to water quality standards and download data for further analysis.
Select a water quality monitoring site and download data for selected time span including temperature, dissolved oxygen, pH, conductivity, nitrogen, phosphorus, E. coli, fecal coliform, alkalinity, total suspended solids and turbidity.
Translate