Unlike pollution that comes from specific industrial factories, sewage treatment plants and other easily discernible ‘points’, nonpoint source pollution comes from many diffuse sources, but in the ...
The Department of Ecology is asking for public comment on proposed updates to the state's management plan for polluted runoff that comes from diverse sources like roads, lawns and farms. Known as ...
As an alternative, this activity can be done on a smaller scale with students creating individual watersheds using paper bags and water-soluble markers. Check www.scorecard.org to search by zip code ...