Information on the history, habitat conservation plan, tours and more for Seattle’s Cedar River Municipal Watershed. Carefully managed to support and supply clean drinking water to 1.4 million people in the greater Seattle area.

Jay Regenstreif with Sammamish Plateau Water explains groundwater resource. Shows how we find it, where it travels using clues and models.

The City of Seattle has provided some examples for calculating how much you pay for your stormwater fee depending on the size of your property and how much impervious surface area you have.

Use King County's interactive well map to see well in your area. You can zoom in to your community to see how many wells there are. If you drink well water, can you find which well it comes from?

Learn aquifer basics, and explore dfferent types of aquifers found across the U.S. Maps provided by U.S. Geological Survey.

Excellent scientific background on what stormwater is, where it comes from, how pollution is being managed, and what each of us can do.

This is a goofy animated video, but it’s actually really helpful if you want to learn the basics about groundwater.

Ground water maps from King County including groundwater management areas, water levels and maps of different contaminants.

Washington State University and Stewardship Partners are leading a campaign to install 12,000 rain gardens in the Seattle and Puget Sound Region. You can actively participate by installing one or more rain gardens in your community.

Musical animation on groundwater designed for kids and adults who like watching funny cartoons while learning.

Information on maps, projects, hydrology, salmon recovery, recreation and more on King Countys major watersheds: Cedar River / Sammamish, Green Duwamish, Snoqualmie-Skykomish.

How King County manages ground water to protect groundwater for drinking, and to also replenishes streams, lakes and wetlands to support fish and wildlife.

An excellent guide for pictures, diagrams and step-by-step instructions on how to design, build and maintain rain gardens on your home or business property.

Just about everything you need to design, build and maintain your own raingarden from Washington State University Extension. Several handy checklists on what to do.

Colorful and easy to read guidebook for maintaining your rain garden so that it is both beautiful and functioning effectively as green infrastructure.