When water returns after a utility main break, confirm the utility’s advisory status and restart instructions before restoring every building use. Check affected areas, follow the building’s applicable water-management and equipment procedures, and document unresolved problems. Pressure and clear appearance do not prove water safety, and food businesses may need separate health-authority clearance.
What should the building restart record separate?
Use a record with distinct decisions and responsible people:
| Item | What to confirm |
|---|---|
| Utility service | Supply restored and current advisory status |
| Internal distribution | Affected zones and building-specific flushing or verification |
| Water-connected equipment | The exact manufacturer's restart instructions |
| Food or other regulated use | Any separate operating restrictions or authority approval |
| Remaining faults | Leaks, pressure problems or equipment alarms still needing repair |
Keep the source and time of each update. A utility restriction lifted for one area should not be assumed lifted for a different service zone. Check whether the outage also exposed an internal plumbing problem.
How should flushing be planned?
Follow the utility's instructions and the building's applicable water-management procedures. CDC's potable-water-system Legionella guidance recommends flushing after an intrusion event such as a water main break and maintaining system components. That guidance is part of water management; it does not supply one universal flushing duration for every building or prove safety merely because water looks clear.
Coordinate the affected outlets and equipment with a qualified water-system professional when required. Do not perform chemical shock treatment or change building disinfection settings from a generic checklist. A Legionella water-management plan is a separate building risk-management topic.
Which equipment should have its own handoff?
Identify heaters, filters, ice machines, beverage equipment and other water-dependent systems actually installed. Use their operating instructions to resolve shutdown and restart questions. Restaurant ice-machine restart addresses affected ice; restaurant water-outage response addresses food-operation approval.
Planned commercial shutoffs cover a controlled internal repair, which differs from an unplanned utility intrusion. If taps sputter after supply returns, air in the pipes explains that symptom without treating appearance as potability evidence.
EPA's commercial water-management planning guidance supports assigning responsibilities, using facility-specific information and updating procedures. Record completed checks and communicate any remaining restriction before declaring every tenant's water use restored.