Manila Water’s Cardona treatment plant boosts supply, a key source for Rizal

Manila Water's Cardona Water Treatment Plant has significantly increased water supply capacity, serving as a crucial resource for Rizal province. The 100 million liters per day (MLD) facility, located in Cardona, Rizal, was developed as part of Manila Water’s broader strategy to diversify water sources and improve long-term water security. It draws water from Laguna Lake, offering an alternative to the Angat Dam, which has faced strain due to prolonged dry weather and climate-related challenges such as El Niño. Construction of the P6-billion project began in 2016, with completion marking a milestone in Manila Water’s infrastructure expansion. The plant and its associated transmission system were designed to reduce reliance on Angat Dam, ensuring more consistent water service for 7.9 million customers in the East Zone. This includes communities in Rizal that had previously depended heavily on the Angat system. The facility now provides up to 100 MLD of treated water, meeting the needs of approximately 800,000 residents in Rizal and surrounding areas. The Cardona plant contributes to maintaining 24/7 water service by acting as a reliable backup during times of high demand or low reservoir levels. Its operation helps alleviate pressure on Angat Dam, especially during extended dry spells. The plant's strategic location allows it to draw water from the central portion of Laguna Lake, making it a key component of Manila Water’s efforts to secure water supply for both current and future populations. To further optimize water usage, the plant features a Backwash Water Recovery System that recovers up to 6 MLD of backwash water daily. This recovered water is reintroduced into the treatment process as raw water, thereby minimizing waste and improving overall efficiency. Such measures align with Manila Water’s commitment to sustainable practices and environmental responsibility. The investment in the Cardona Water Treatment Plant reflects Manila Water’s ongoing focus on strengthening its water supply network against the impacts of climate change. Through projects like this, the company aims to ensure that water services remain uninterrupted despite fluctuating weather patterns and increasing demand. The plant exemplifies how modern infrastructure can support urban growth and regional stability. As part of its long-term strategy, Manila Water continues to explore new water sources, optimize existing facilities, and implement innovative technologies to enhance water management. The success of the Cardona plant underscores the importance of diversification in water supply systems, allowing utilities to adapt to environmental uncertainties and sustain service quality. With these efforts, Manila Water reinforces its role as a critical provider of essential services in the region.