This dramatic improvement comes ahead of the completion of the RiverRenew system and marks a major step toward cleaner, healthier waterways.

“When our newest pumping station is complete, and the entire RiverRenew system is operational, we’ll ultimately see a 99% reduction in combined sewer overflows at Hooffs Run,” said Matt Robertson, AlexRenew’s Director of Communications. “It’s encouraging to see how this once-in-a-generation initiative is already helping to reshape the future of Alexandria’s waterways.”

Once complete, the entire RiverRenew program will capture and convey 120 million gallons of combined sewage each year, preventing harmful combined sewer overflows from polluting the Potomac River and its tributaries. While the program’s remaining components—including the massive waterfront tunnel—are expected to come online in 2026, the early success at Hooffs Run demonstrates the transformative impact the project will have on the community and the environment.

“We’ve witnessed tremendous support from our community as we enter the final stages of Alexandria’s largest-ever infrastructure project,” explained Robertson. “Our new, massive underground pumping station is quickly taking shape at the heart of AlexRenew’s treatment plant, and we’ll be ready to accept and treat millions of gallons of combined sewer flows this year.”

AlexRenew has also made several community‑focused improvements in the area surrounding Hooffs Run. In 2025, the community celebrated the restoration of African American Heritage Park, the installation of new wayfinding signage that highlights the stories and contributions of Black Alexandrians, and the planting of native trees and vegetation throughout the park.

Together, these investments reflect AlexRenew’s commitment not only to protecting public health and community waterways but also to honoring Alexandria’s cultural heritage and strengthening community spaces.