Protecting Our Waterways: Tips for Preventing Stormwater Pollution

With the arrival of the wet season, it’s crucial to be mindful of how rainwater runoff affects our local ecosystems. While rainfall is a welcome relief for drought-prone areas, it can also transport pollutants from streets and neighborhoods into storm drains, eventually reaching rivers and streams. Unlike household wastewater, which is treated before being released, stormwater flows untreated into our natural waterways, carrying with it everything from oil and chemicals to litter and pet waste.

One important practice to minimize pollution is regular street sweeping, a service many cities provide to keep roads and gutters clear of debris. Street sweeping is more than just a cosmetic clean-up; it plays a vital role in preventing trash, dirt, and contaminants from washing into storm drains. By collecting leaves, litter, and other pollutants, street sweepers help reduce the amount of harmful materials entering the stormwater system, especially during heavy rains. Homeowners can support these efforts by keeping curbs clear and avoiding parking on designated street sweeping days, allowing the sweepers to do their job effectively.

In addition to street sweeping, we can all contribute to stormwater pollution prevention by adopting simple habits at home:

1. Sweep, Don’t Hose

Opt for a broom or dry vacuum instead of using water to clean driveways, sidewalks, or patios. Washing down outdoor surfaces with a hose can carry pollutants directly into the storm drains. Stick to dry cleaning methods to prevent contamination and conserve water, especially during drought.

2. Promptly Fix Vehicle Leaks

Check your car regularly for oil leaks and use a drip pan until repairs can be made. Even small oil spills pose a significant threat to stormwater quality. Clean up any spills with absorbent materials like kitty litter and dispose of the waste properly. Never rinse spills with water, as it can spread the contamination further.

3. Safely Dispose of Hazardous Waste

Household items like paints, solvents, and chemicals should be taken to designated disposal facilities rather than thrown away or poured down the drain. Proper disposal helps keep toxins out of stormwater and reduces the risk of contamination. Yard waste, such as leaves and grass clippings, should also be kept out of storm drains and gutters. Use green waste bins or compost instead.

4. Pick Up After Pets

Pet waste left on the ground can wash into storm drains, introducing harmful bacteria and nutrients into our waterways. Always pick up your pet’s waste, seal it in a bag, and dispose of it in the trash—never in garden compost or yard waste piles.

5. Reduce Chemical Use

Limit the use of pesticides and fertilizers, opting for eco-friendly alternatives whenever possible. Implementing sustainable landscaping practices, such as using native plants, reduces chemical needs and helps control runoff.

Let’s be proactive in keeping our streets and storm drains clean this wet season. By working together—whether through supporting street sweeping efforts or practicing good habits at home—we can protect our waterways and help preserve the health of our local environment.