When it rains, what goes on the ground, goes into the river. The water that hits your roof and lawn may pick up oil, sediment, bacteria, grease and chemicals that can pollute our neighborhood streams and the Tualatin River. Making a positive impact can be as easy as finding stream-friendly solutions for your roof, home and lawn or using free tools to restore our watershed. Property owners in our service area can also get free native plants for their yard. Want a more personalized approach? Our Clean Water Hero Assistance program offers free technical assistance to help you create your own water-friendly landscape.