The Clark Development Corporation (CDC) and the Clark Water Corporation (CWC) started the construction of a 10-million-liter-per-day (10MLD) wastewater treatment facility inside the Clark Freeport Zone, expanding the existing sewage treatment plant here.

During a groundbreaking ceremony on 1 July 2026, the new 10MLD wastewater treatment facility aims to support the growing number of companies investing in Clark Freeport, addressing the increasing wastewater demand and ensure that sanitation infrastructure keeps pace with development.

CDC President and Chief Executive Officer Agnes VST Devanadera said wastewater infrastructure remains a critical component of Clark’s long-term growth.

“Now we’re talking of sustainability, we’re talking of growth, we’re talking of Clark as the gateway to the Luzon Economic Corridor,” Devanadera said.

She added that wastewater management, though less visible, is an essential service that supports public health and protects environmental resources.

Manila Water Chief Operating Officer for the Non-East Zone Melvin Tan said the expansion is designed to provide sufficient sewerage capacity for both current and future developments.

“We’re not just addressing the current demand for sewer services in the Clark Freeport Zone, but we’re also making sure that future developments in the Clark Freeport Zone will have appropriate sanitation services,” Tan said.

CDC Construction Management Division Manager and CDC Rate Rebasing Team Chair Engr. Rogelio Magat said the project stems from technical studies and coordination to identify a treatment system suited to the requirements of the Freeport.

The facility will be built within the Clark Centralized Wastewater Treatment Facility and will use Sequencing Batch Reactor (SBR) technology with Biological Nutrient Removal (BNR), which is designed to improve treatment efficiency and meet environmental standards.

Once completed, the additional 10MLD capacity is expected to support both existing locators and future investments in the Freeport.

Representatives from CDC, CWC, the Department of Environment and Natural Resources– Environmental Management Bureau Regional Office III, Manila Water Infratech Solutions, Hydroguard Systems Corporation, and other partners attended the groundbreaking ceremony.