Commercial Legionella Prevention for Cooling Towers in Fontana, CA

End-to-End Legionella Control for Commercial Cooling Towers

Legionella prevention is not a single task—it is a continuous engineered process. Our approach aligns with ASHRAE 188 and industry best practices to identify risk, implement controls, verify performance, and document everything. We combine deep technical know-how with practical service plans that keep your teams focused on operations while we safeguard water system health.

• Comprehensive Water Management Programs (WMP) tailored to your facility
• Cooling tower cleaning, descaling, and disinfection (startup, routine, and emergency)
• Biocide and dispersant programs with automated control and alarms
• Microbiological testing via accredited labs (Legionella culture/qPCR, HPC, dip slides)
• System optimization: basin hygiene, drift eliminators, bleed rate, and temperature control
• Seasonal layup/startup procedures and documented commissioning
• Audit-ready logs, trending, and corrective action reports

For facilities operating Carrier chiller plants tied to open cooling towers, our team integrates water treatment strategy with plant sequencing and controls to minimize stagnation, avoid tepid water ranges, and stabilize heat rejection—all of which help reduce Legionella risk while supporting efficiency.

Our Proven Process

• Assessment and Risk Mapping: We document tower design, load profiles, basin geometry, drift control, makeup water quality, and operational patterns across seasons.
• Program Design: We develop an ASHRAE 188–aligned WMP with control limits, monitoring frequency, responsible parties, and escalation steps.
• Implementation: We provide tower cleaning and disinfection, calibrate feed and bleed, and deploy automated dosing and remote alerts where appropriate.
• Verification and Validation: Routine sampling and lab analysis confirm performance; results drive continuous improvement.
• Documentation: Logs, SOPs, and incident records are maintained for inspections, insurers, and internal quality programs.

Need emergency support? We mobilize quickly for out-of-spec test results, visible fouling, or odor complaints—restoring control and documenting corrective actions.

Engineers for Complex Commercial Sites

#1 AC Guys is a 4th‑generation family of engineers with 80+ years of engineering experience. Our mission is healthier air and water for healthier buildings. We are trained by Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China), and we specialize in large, complex commercial projects where precision, sequencing, and documentation are critical.

• Hospitals, medical offices, and life science facilities
• Distribution centers and cold storage
• Manufacturing and food & beverage
• Office campuses, mixed‑use, retail, and hospitality
• Education and municipal buildings

We work seamlessly with Carrier chiller plants, central plant controls, and hydronic systems that interface with open cooling towers—coordinating setpoints, flow, and water treatment to reduce risk while supporting energy goals.

What You Can Expect

• Clear, site‑specific WMP aligned to ASHRAE 188 and industry guidance
• Thorough cleaning and disinfection procedures with transparent before/after data
• Cal/OSHA‑minded safety planning and site coordination
• Consistent reporting: logs, lab results, trends, and corrective actions
• Options for remote monitoring and alerting to catch issues early
• Training for your onsite staff to maintain day‑to‑day controls

While we are not a laboratory, we coordinate accredited testing and help you interpret results within the context of your WMP—so decisions are fast, defensible, and actionable.

Service Area: Fontana and Nearby Regions

We proudly serve businesses in Fontana, CA and surrounding Inland Empire locations, along with Los Angeles County and nearby areas including Orange County, Ventura County, and Western Riverside County. If your facility operates Carrier chiller plants and open cooling towers across multiple sites, we can standardize your Legionella prevention program portfolio‑wide.

Why #1 AC Guys

• 4th‑generation engineering family with 80+ years of engineering expertise
• Specialists in complex commercial systems and multi‑tower campuses
• OEM training from Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier
• Strong integration with Carrier chiller plants and central plant controls
• Fast response, clear communication, and audit‑ready documentation

From proactive maintenance to emergency remediation, we deliver consistent, engineered outcomes that reduce risk, support compliance, and protect your people and operations.

Get Started

Schedule a site assessment in Fontana today. We will review your towers, chemistry program, monitoring, and documentation; then provide a practical, budget‑right plan to bring your system into control and keep it there. Healthy buildings begin with healthy water—let our engineering team make Legionella prevention one less thing you have to worry about.