Hospital Plumbing System Upgrade: Legionella Compliance with Zero Water Service Interruption

🔧 The Challenge

The hospital's 30-year-old domestic water system had experienced 7 major leaks in the past year, causing water damage and patient room closures. ASHRAE 188 Legionella risk assessment mandated a comprehensive water management plan. All work had to maintain water service to critical areas including surgical suites, ICU, and emergency department. Infection control protocols required dust containment, negative air pressure in construction zones, and daily environmental monitoring.

💡 Our Solution

Auxi Services designed a phased approach using temporary bypass piping systems that maintained continuous water service. Each wing was isolated, upgraded, tested, and reconnected before moving to the next. All construction followed ICRA (Infection Control Risk Assessment) Class IV protocols with HEPA filtration, negative pressure, and daily air monitoring. New piping included a copper re-pipe with point-of-use filtration and a digital water management system for Legionella monitoring. All work was performed during low-occupancy periods.

✅ The Outcome

Complete water system replaced in 14 weeks with zero water service interruptions. All Legionella compliance requirements met. Zero infection control incidents. Hospital passed Joint Commission inspection on first attempt. Water leak incidents eliminated entirely. Annual maintenance costs reduced by $45,000. Project completed $110,000 under budget through efficient phasing.

Project Photos