A rafting trip will be considerably less scenic if you're paddling through polluted water. Rain washes everything from lawn fertilizers to used motor oil into stormwater drains , which often empty into the nearest river, lake, or bay. To protect rivers, keep these five things out of the drain:
Phosphorus , found in fertilizer and detergent, contributes to algal blooms, which rob fish of oxygen. Green your lawn with low-maintenance , native plants to reduce your reliance on fertilizers. Check the weather forecast, and don't fertilize if rain is expected. The Organization for the Assabet River lists phosphate-free and low-phosphate detergents .