Ten Simple Ways You Can Help Reduce Pollution and Runoff Everyday household activities contribute to water pollution. When it rains, fertilizer from lawns, oil from driveways, paint and solvent residues from walls and decks and even pet waste are all washed into storm sewers or nearby lakes, rivers and streams -- the same lakes, rivers and streams we rely on for drinking water supply, boating, swimming and fishing. Also, improper handling of materials around the house can lead to pollution. Here are some ways you can help reduce your impact on waterways.