Context — When Seconds of Outage Cost Millions

CVS Health’s flagship Arizona data center is the digital heartbeat for prescription processing, pharmacy-benefit management, and real-time analytics that guide patient care nationwide. Its four standby generators are the last line of defense against grid disturbances—but their legacy fuel system was running out of capacity and resilience. CVS asked John C. Digertt Inc. to
modernize the entire fuel infrastructure, add storage headroom, and do it all without a single blip to data-center uptime.

Nationwide reach, local touch: Although our headquarters sit on the opposite coast, Digertt’s Fuel Storage and Handling team coordinated design, material logistics, and on-site fieldwork seamlessly—proving we can deliver hands-on execution anywhere across the country.

Fuel Storage and Handling

Mission-Critical Objectives

1. Capacity Expansion — Integrate a new 10,000-gallon, UL-2085 above-ground diesel
   tank.
2. Redundant Delivery — Add four duplex pump sets and smart day-tank controls for N+1
   reliability.
3. Continuous Availability — Execute the work in tightly choreographed phases so all
   four CAT gensets stayed “green-lit” 24/7.
4. Future Flexibility — Design controls that can scale to additional tanks or bio-blend fuels down the road.

Fuel Storage and Handling

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Technology Highlights

- Smart Day-Tank Panels — Guided-wave radar level sensors, dual spill-containmentfloats, and Ethernet/IP comms stream live data into CVS’s BMS.

- Duplex Pump Sets — Each skid delivers full flow on a single pump; the second pumpautostarts on demand or if a vibration sensor trips.

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Measurable Wins for CVS Health

- +48 Hours of On-Site Fuel — New storage buffer meets enterprise risk-managementspecs for extended grid outages or natural disasters.

- N+1 Redundancy Without New Footprint — Compact pump skids and piggy-back daytanks fit existing enclosure space, avoiding costly building expansion.

- Elimination of Single-Point Failure — PLC logic and dual transfer valves ensure thatany component can be isolated while the system keeps feeding generators.

- Coast-to-Coast Confidence — Successful Arizona deployment demonstrates Digertt’sability to mobilize expertise and materials nationwide with no compromise on scheduleor quality.

About John C. Digertt Inc.

For more than 40 years, Digertt has turned fragile fuel assets into bulletproof, data-drivenfuel storage and handling systems for data centers, hospitals, and research campuses. From concept to commissioning, we deliver the controls, materials, and field oversight that keep critical power online—anywherein North America.

Need Zero-Downtime Fuel Upgrades?

Let’s engineer a phased plan that keeps your generators humming while we modernize whatfeeds them—even if your facility is three time-zones away. Connect on LinkedIn or visitdigertt.com to start the conversation.