Notify King County of stormwater runoff and surface water quality problems using an online form, or by calling by phone.

Classes and workshops for King County horseowners include mud management, manure mgt, pasture mgt, seeding, composting manure, fencing, weed mgt, fall pasture mgt, stream fencing and restoration, and wildlife enhancement.

Encourages environmental and agricultural enhancement, coordinates productive relationships between citizens and regulatory agencies and helps landowners implement conservation practices.

Recognition of environmental programs, people, and businesses that work to improve air, land and water quality in our region and our quality of life in general.

For kids interested in the environment and in having fun. Includes games and features about salmon and wildlife, hazardous substances, recycling, and choosing recycled products.

Look up where to recycle batteries, tires, appliances, packaging, construction materials, and business waste by city in King County.

Info on protecting and enhancing lakes, streams, marine waters, wetlands, and fish and wildlife habitat; promoting agriculture and forestry; preventing flood damage; and volunteer and educational opportunities.

Information about rain barrels, composting, native plants, noxious weeds, pest control, and other topics of natural yard care. Images, tips, contact information, and links.

Information about King County lakes including tips for lakeside residents, reports about water quality and invasive aquatic plants, and features on lake stewardship.

Weather and water quality conditions in Lake Washington and Lake Sammamish. Data include air temperature and humidity, water temperature, dissolved oxygen, pH, chlorophyll, and conductivity at various lake depths.

Provides ideas for safer use of pesticides, household chemicals, paint, auto products, and how to properly dispose of household hazardous waste

Encompasses farms and forests, urban and wilderness parks, historic towns and recreational opportunities along Interstate 90, crossing Kittitas and King Counties.

Press releases related to wastewater, solid waste, recycling, water resources, land resources, and flooding in King County.

A library providing technical reports from King County agencies and books on a variety of natural resource topics. The Research Center primarily serves county employees but is also open to the public.

Info about benthic macroinvertebrates including caddisflies, mayflies, stoneflies, and other aquatic creatures, and how these bugs are used to measure pollution and nutrient levels in King County streams.

Calendar of environmental events and hands-on volunteer opportunities in King County.

Dispose of pesticides, paint, automotive products, and other household hazardous wastes. Look up schedule and hours, materials accepted, and how to handle wastes.

The King County Wastewater Treatment Division transports and treats the region's wastewater, protecting public health and water quality of Puget Sound and Lake Washington while promoting biosolids recycling and water reuse.

Geographic portal to natural resource information, based on drainage basins in King County. See what King County is working on in your neighborhood.