The Long Island Sound is showing significant signs of ecological recovery, with oxygen-depleted "dead zones" shrinking to their lowest recorded levels in nearly 40 years. According to a 2025 report from Connecticut environmental officials, pockets of hypoxia now cover just 18 square miles of the waterway, which is a dramatic improvement from the estimated 430 square miles observed when tracking began in 1987. Experts credit this success to stricter regulations on wastewater treatment plants, which have curbed the nitrogen-rich sewage and runoff that previously suffocated marine life.
This restoration of water quality is already yielding visible results, underscored by the sighting of a pod of nearly 70 dolphins near New Rochelle this past summer. While challenges persist, the overall trend points toward a revitalized habitat and a potential surge in marine wildlife populations.
Pipe Repairs Halt Tijuana River Sewage Flow
The U.S. International Boundary and Water Commission recently announced that emergency repairs to a collapsed wastewater pipe in Tijuana are complete, successfully stopping the flow of sewage into the Tijuana River. The failure of the Insurgentes Collector on January 15 had resulted in the diversion of roughly 11.5 million gallons of wastewater daily.
Although officials initially estimated the project would require 10 days, crews from the State Commission of Public Services of Tijuana worked around the clock to finish the reconstruction and manhole repairs in just three days. While the IBWC confirmed that the South Bay International Wastewater Treatment Plant was not impacted by the collapse, local leaders emphasized the fragility of the current system.
Read more about it at the San Diego Union-Tribune.
Southeast Georgia Water Plant Expansion Begins
Officials in southeast Georgia recently broke ground on a $146 million expansion of a surface water treatment plant in Port Wentworth, a project designed to support the region's rapid population and industrial growth. Managed by the City of Savannah, the initiative aims to increase the daily withdrawal capacity from the Savannah River’s Abercorn Creek from 58 mgd to potentially 90 mgd over the next few decades.
By shifting reliance toward surface water, the project seeks to reduce strain on the Floridan Aquifer, the region's vital underground water source, ensuring its long-term resilience. The expansion is supported by a $500 million state funding package.
