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U.S. EPA Visits Bao-Ding Reclaimed Water +
Radium Launches NT$720 Million Accessible Infrastructure Project at the National Palace Museum
From Water Resource Resilience to Cultural Sustainability, Building the Next Generation of Urban Resilience
Connecting Reclaimed Water, Smart Water Management, Green Energy and Public Infrastructure to Build More Sustainable and Livable Cities
As climate change intensifies around the world, water is no longer simply an environmental issue. It has become a critical foundation for urban resilience, industrial competitiveness, and long-term national sustainability.
On September 17 the U.S. Environmental Protection Agency (EPA) visited the North Taoyuan Reclaimed Water Plant, developed and operated through Rih Ding Water and Bao Ding Reclaimed Water under the Radium Group (TWSE: 2547). The delegation gained an in-depth understanding of Taiwan’s practical experience in public wastewater treatment, reclaimed water production, industrial water supply, and circular water resource management, witnessing Taoyuan’s transformation from simply “treating wastewater” to “recreating water resources.”
The visit was accompanied by officials from Taiwan’s Ministry of Environment and the Taoyuan City Government Water Resources Bureau, and brought together senior engineering and research officials from the U.S. EPA. Discussions focused on how treated municipal wastewater can be further transformed into a stable source of reclaimed water, how reclaimed water can support industrial development and reduce dependence on conventional water sources, and how cities can strengthen their water resilience in response to climate change.
International Exchange with the U.S. EPA: Bringing Taiwan’s Water Management Experience to the World
The U.S. EPA’s visit to the North Taoyuan Reclaimed Water Plant provided an opportunity not only to understand Taiwan’s practical experience in wastewater treatment and water reuse, but also to strengthen Taiwan-U.S. exchange on water resource circularity, reclaimed water technologies, smart water management, climate resilience, and sustainable governance.
Taiwan’s Executive Yuan has approved 16 reclaimed water projects. Seven plants including North Taoyuan (Bao Ding Reclaimed Water), Taichung Shuinan, Tainan Yongkang, Tainan Anping, Tainan Rende, Kaohsiung Fengshan, and Kaohsiung Coastal Industrial Park have been completed, with a combined reclaimed water production capacity exceeding 190,000 cubic meters per day (CMD), primarily serving industrial water demand.
Another nine projects are currently under planning or construction across northern, central, and southern Taiwan. Once all projects are completed, total reclaimed water supply is expected to exceed 500,000 CMD, creating a more diversified and interconnected water supply network across Taiwan.
Taoyuan City has also accelerated the development of its wastewater sewerage infrastructure in recent years. By the end of 2025, the number of households connected to the sewerage system had reached approximately 277,000, an increase of 81,000 households compared with the end of 2022, representing growth of 41.39%. The overall wastewater treatment rate also increased from 70.23% in 2022 to 73.75% in 2025.
Wastewater Is Not the End: It’s the Beginning of the Next Water Cycle
Radium Group Chairman Lin Rong-shian said that Taiwan faces unique challenges due to its limited land area and distinctive natural water conditions. Building a resilient water system therefore requires the long-term commitment of technology, institutions, and private-sector investment to establish diversified water sources and a circular water management system.
Radium’s investment in Taoyuan’s water infrastructure is not simply about treating wastewater to an acceptable standard. It is about redefining the value of water.
This represents an important contribution to urban water resilience and reflects Radium’s long-term commitment to sustainable urban development.
Radium subsidiary Rih Ding Water has participated in the development and operation of North Taoyuan’s public wastewater system. Phase I of the wastewater treatment plant officially began operations in 2016, followed by Phase II in 2020. The company continues to expand sewerage connection services, with the long-term objective of serving approximately 250,000 connected households across the full project scope.
Reclaimed Water Supports Industry: Creating a More Stable Pathway for Urban Water Supply
Radium’s long-term investment has also established an important foundation for Taoyuan’s reclaimed water supply.
A reliable reclaimed water system begins with a stable source of treated wastewater. By developing a comprehensive wastewater collection and treatment system, Rih Ding Water provides a stable source of reclaimed water feedstock for Bao Ding Reclaimed Water, which applies advanced water treatment technologies to transform it into a high-quality resource for reuse.
The North Taoyuan Reclaimed Water Plant currently provides a stable supply of 40,000 CMD reclaimed water per day. Its full-scale planned capacity is 112,000 CMD, to be developed in three stages with capacities of 40,000 CMD, 40,000 CMD, and 32,000 CMD, respectively.
The expansion plan is designed to support Taoyuan’s industrial development and major infrastructure initiatives, including the Taoyuan Aerotropolis. As capacity is progressively expanded, the plant is expected to become an important reclaimed water supply system for northern Taoyuan, providing the city with a stable second-source water supply for industrial development.
Advanced Treatment Technologies for Stable, High-Quality Reclaimed Water
For reclaimed water to become a dependable long-term water source for industry, three factors are essential: reliability of supply, stringent water quality, and long-term operational capability.
To maintain consistent water quality, the Bao Ding Reclaimed Water Plant employs a multi-stage advanced treatment process, including cloth-media filtration, ultrafiltration (UF), and reverse osmosis (RO).
These processes further remove suspended solids and dissolved substances from the water, producing high-quality reclaimed water suitable for industrial applications.
Water quality is continuously and rigorously monitored across multiple parameters, including COD, TOC, suspended solids, turbidity, ammonia nitrogen, total dissolved solids (TDS), and various metals. Management is conducted in accordance with stringent standards for advanced industrial process water.
From Smart Water Plants to AI-Enabled Water Management
“Smart Means Predicting, Not Reacting.”
Another key area of exchange during the EPA visit was the application of smart water management, AI analytics, and real-time predictive capabilities at the North Taoyuan Water Resource Recycling Center.
The facility has implemented a smart water management platform that integrates wastewater treatment, reclaimed water production, flow monitoring, water quality monitoring, equipment maintenance, SCADA-based automated control, and management information systems.
The platform further applies AI to historical data analysis, feature extraction, data cleansing, and feature engineering.
Through real-time AI-based prediction of water quality changes and abnormal conditions, the system can identify potential changes in advance and provide recommended corrective actions.
This enables water plant management to move beyond the traditional model of “responding after a problem occurs” toward “predicting and preventing problems before they occur.”
As water facilities evolve from conventional equipment management toward data-driven management, AI analytics, and intelligent decision-making, they can simultaneously reduce operational risks, energy consumption, and chemical usage.
In this transformation, water management moves from experience-based operations to data-driven governance.
From Water Resource Resilience to Cultural Sustainability, Radium Continues to Contribute to Major Urban Infrastructure
Beyond its involvement in water resource recovery, reclaimed water, and smart water management infrastructure, Radium’s subsidiary Titan Development is extending its experience from the New National Palace Museum development project through its successful bid for the “New Construction Project of the Accessible Entrance Passage at Zhishan Road” for the National Palace Museum.
With an estimated project budget of approximately NT$720 million, the project officially commenced construction on September 16, 2026, and is expected to be completed approximately two and a half years after commencement. As a key public-service and environmental improvement project under the New National Palace Museum Plan, the development is also designed to connect with Y28 “National Palace Museum Station” on the Northern Section of the Taipei Metro Circular Line, creating an effective balance between the classical architectural and cultural character of the National Palace Museum and the needs of a modern, accessible environment.
For Radium, this project reflects the Group’s long-term commitment to engineering quality, safety management, environmental protection, and public-service responsibility, which demonstrates how corporate development can contribute to both urban resilience and cultural sustainability.
Bao Ding Reclaimed Water: North Taoyuan Reclaimed Water Center
Schematic Diagram of Titan Development “New Construction Project of the Accessible Entrance Passage at Zhishan Road”
for the National Palace Museum Architectural Design
Bao Ding Reclaimed Water: Reverse Osmosis (RO) Treating System
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