Every year on June 8, communities around the world celebrate National Oceans Day. It is a great time to recognize the beauty, power, and importance of our planet’s oceans. While many people think of the oceans as distant places filled with marine life, waves, and coastlines, their influence reaches far beyond the shore. In fact, the oceans play a direct role in something we rely on every single day: the water that comes out of our taps.
Our Oceans Drive the Water Cycle
Almost all of Earth’s water rests in the oceans. These vast bodies of water act as the engine of the global water cycle. When ocean water evaporates, it forms clouds that eventually release freshwater as rain and snow. This precipitation refills rivers, lakes, streams, and underground aquifers, which together feed our drinking water systems. In other words, the clean water we consume begins its journey in the oceans.
How This Connects to Fairfax Water’s Drinking Water Supply
Here in Northern Virginia, Fairfax Water relies on two major water sources: the Potomac River and the Occoquan Reservoir. The water that eventually reaches these sources is shaped by global and regional weather patterns, including rainfall driven by ocean evaporation. Stable precipitation keeps stream flows healthy, reservoirs replenished, and drinking water supplies reliable.
Changes to the ocean climate can impact these patterns. That can mean heavier rainfall and flooding at certain times of the year, or dry spells that limit inflow to reservoirs and rivers. Protecting the oceans and the broader water cycle helps maintain the consistency and quality of local water sources like the Potomac and the Occoquan, which in turn supports the high-quality drinking water delivered to Fairfax Water customers.
Pollution Doesn’t Stay in the Ocean
Trash, chemicals, plastic, and runoff that reach the seas don’t remain neatly contained. Pollution can cycle back into the atmosphere or travel through connected waterways. National Oceans Day serves as a reminder that caring for marine environments is essential for keeping our broader water systems clean and safe.
A Call to Action Close to Home
While the oceans may seem far away from daily life in Northern Virginia, each of us plays a role in protecting them and, by extension, our drinking water. Choosing reusable bottles, reducing plastic use, disposing of chemicals properly, and supporting water‑friendly policies and programs all create ripple effects that extend from local streams to the shoreline and beyond. To learn more about how you can protect waterways, visit https://www.onlyrain.org/ and sign the clean water pledge!
This National Oceans Day, we celebrate not only the incredible biodiversity of the seas but also the oceans’ critical contribution to the freshwater that keeps our communities healthy and thriving. Protecting the oceans means protecting our future—one glass of water at a time!