UPDATED: June 12, 2020.
This effort took place prior to social distancing guidelines related to COVID-19.
UPDATED: June 6, 2022.
Updated broken links.
During a downpour, rainwater hits pavement and flows into drains, picking up pollutants like oil, fertilizers, and road salts along the way. These pollutants can flow into nearby water bodies, where they can harm wildlife, make swimming and boating unsafe, or even contaminate drinking water.