Overview

The George H. Fallon Federal Building in downtown Baltimore houses the ICE Baltimore field office and temporary detention holding rooms. The facility has become a flashpoint due to Legionella bacteria contamination in the water system and overcrowding that prompted a federal judge to intervene. Baltimore’s limited holding capacity is a key reason DHS pursued the Williamsport/Hagerstown warehouse — to provide detention beds for the Baltimore AOR.

Legionella Contamination

• November 2025: GSA test confirmed presence of Legionella bacteria (causes Legionnaires’ disease) in the facility’s water system
• GSA implemented hyperchlorination treatment, but bacteria remain present
• March 6, 2026: Legionella presence publicly reported; Maryland Congressional delegation demanded answers by March 20
• ICE says detainees are given bottled water as a mitigation measure
• Letter signed by: Senators Van Hollen and Alsobrooks, Reps. Mfume, Hoyer, Raskin, Ivey, Elfreth, McLain Delaney, and Olszewski

Overcrowding and Court Order

• A federal judge ordered ICE to reduce overcrowding and ensure basic needs of detainees
• ICE temporarily closed the Baltimore holding cells in response
• Holding rooms have since reopened, per ICE statement
• Maryland delegation conducted an unannounced visit and found holding rooms empty (suggesting detainees may have been moved before arrival)
• July 2025: Delegation denied access to inspect the facility during an earlier visit

Why It Matters

• Baltimore’s holding capacity constraints are the operational justification for the Williamsport warehouse — ICE argues it needs more beds in the Baltimore AOR
• The Legionella contamination raises serious health and liability concerns for detainees held in the facility
• Limited capacity + surging arrests (3,300+ in MD in 2025) = pressure for expanded detention infrastructure

Sources

• Maryland congressional members find empty Baltimore ICE holding rooms — CBS Baltimore
• Alleged Legionella outbreak at Baltimore ICE facility — CBS Baltimore
• Legionella found in water system of federal building — Maryland Matters (Mar 6, 2026)
• Judge’s order prompts ICE to temporarily shut Baltimore holding room — Baltimore Banner
• Maryland delegation denied access to inspect Baltimore ICE facility — Maryland Matters (Jul 29, 2025)
• Baltimore’s ICE Holding Rooms: What Changed in 2025 — Maryland Bay News (Feb 13, 2026)