Park Shores Water Treatment Plant Upgrade: Filter Replacement Project Reaches Key Milestone
The Park Shores Water Treatment Plant (WTP) Filter Replacement Project is well underway, marking a significant step toward improving water quality and reliability for our customers. This project began in September 2025 and represents the second phase of a three-part upgrade to the plant’s filtration system.
The need for this upgrade stems from several critical factors: aging infrastructure, regulatory compliance, and the challenges posed by natural events such as drought and flooding. Decreasing lake levels have placed additional strain on treatment processes, making efficiency improvements essential. By updating the plant, we ensure continued compliance with water quality standards and strengthen our ability to serve the community during periods of high demand or environmental stress.
Importantly, this project does not increase the amount of water drawn from the lake. The improvements focus on treatment capacity and reliability, not expanding water withdrawal.
Project Scope and Partners
This phase focuses on replacing Filter B and Filter C, each with a 2 million gallons per day (MGD) capacity, with new Tonka Water Gravity Filters. The project also includes upgrading the chemical system by replacing the existing MIOX system with an On-Site Hypochlorite Generation (OSHG) system, along with new chemical tanks, pumps, piping, and other site improvements.
The first filter was successfully replaced in early 2024, and the third filter will follow soon after this second filter is operational. On November 5th, the team achieved a major milestone: removing a section of the plant’s roof to allow for the installation of Filter B, the middle filter in the system. This was a critical step in keeping the project on schedule. Because this work impacts water production capacity, timing is everything; the replacement must occur during the winter months when demand is at its lowest.
The next steps include replacing Filter C and upgrading the chemical system by the end of the year. Full project completion is expected in Spring 2026.
Community Impact
The Park Shores WTP serves our Canyon Lake Shores Public Water System (PWS), our largest PWS, making this project vital for thousands of customers. Once complete, the upgrades will deliver better water quality, greater reliability, and long-term sustainability. These improvements will help us meet customer demand while maintaining compliance with stringent water quality standards.
Looking ahead, this project is part of a broader commitment to update infrastructure and ensure resilient water service for the future. By investing in advanced filtration and chemical systems, we’re building a stronger foundation for the communities we serve.