EMERGENCY / SERVICE OUTAGE MEMORANDUM
Notification Date: November 20, 2025

To: USGS Building
From: Ken Murphy
Emergency Contact Info: 720-394-3922 k.murphy@mines.edu

Outage Date: December 4 – 5, 8 – 9, 2025
Outage Time: 5:30 AM to 3:30 PM
Purpose: Preventive Maintenance
System(s) Involved: HVAC

Effect(s) on Occupants: Minimal shut down time for air handling units, fan coils, and exhaust fans

Please notify all personnel affected by this outage. If this interruption of service creates an unmanageable problem, or you desire additional information, please call Ken at 303-384-2078.

Thank you for your cooperation.

EMERGENCY / SERVICE OUTAGE MEMORANDUM
Notification Date: November 21, 2025

To: USGS
From: David Feron
Emergency Contact Info: 301-461-5354

Outage Date: December 6, 2025
Outage Time: 7:00am – 1:00pm
Purpose: Replacement of USGS Medium Voltage Transformer
System(s) Involved: Building electrical power

Effect(s) on Occupants:

• No electrical power for the duration of the outage.
• The emergency standby generator will power essential building systems (data center, emergency lights, and fire alarms).
• Please turn off all computers, other electronics, prior to the outage.

Please notify all personnel affected by this outage. If this interruption of service creates an unmanageable problem, or you desire additional information, please call David Feron at 303-384-2535.

Thank you for your cooperation.