Unhealthy air quality in California city as huge warehouse fire burns for 3rd day

The massive fire at a Medline warehouse in Tracy, California, was still burning on its third day Saturday, sending smoke across the area and pushing air quality in part of the city into the unhealthy range.

Officials said smoke-sensitive residents and other vulnerable people should stay indoors while crews continued working to contain the blaze at the roughly 1 million-square-foot distribution site.

The fire began Thursday, June 11, and quickly became a major emergency at the Medline facility, which stores medical products and serves as an important distribution center. No injuries have been reported in the coverage available so far.

Fire and smoke

By Saturday, the fire was still active, and reporting from later in the day said crews expected to keep working on hot spots and smoke for several more days. The fire’s long duration underscored how difficult it has been to bring under control.

Fire officials said the blaze has been especially difficult to extinguish because of the condition of the building and problems with the site’s own fire-suppression systems. Authorities said the issue appeared to be with the facility’s system rather than the city water supply, and on-site pressure was low.

Crews also dealt with embers that were carried miles away and started spot fires, adding to the response effort around the site.

Public health response

San Joaquin County Public Health Services and local officials continued to monitor smoke conditions as the fire burned. The warning was aimed particularly at people most likely to be affected by poor air quality, including those with respiratory or other health conditions.

The smoke alert turned the fire into more than a property loss. For nearby residents, the immediate concern was the short-term exposure risk from unhealthy air, especially while the fire remained active and conditions stayed smoky.

What the facility does

The warehouse is a major Medline distribution site used to move medical supplies and equipment. Reporting described it as a key logistics node for the company’s network, which helps explain why the fire drew close attention from health-care customers as well as emergency crews.

Medline said it has shifted most order lines through other distribution centers and added staffing, inventory and transportation capacity to keep products moving. The company also said it was working with officials to let employees retrieve vehicles left at the site.

That rerouting highlights the wider supply-chain impact. The blaze is not only a local environmental and public-health issue, but also a disruption for hospitals, care providers and other customers that depend on Medline deliveries.

Investigation and next steps

Fire investigators, including the local fire marshal and federal authorities cited in some reporting, are continuing to examine what started the blaze and why the suppression systems did not work as expected. Officials said the exact cause has not been determined.

Questions remain about what sparked the fire, whether the roof or upper part of the building was involved, and how the facility’s fire-water system failed during the incident. Reporting also notes that the warehouse stored medical products and materials that could create debris and contamination concerns once crews can safely assess the site.

Crews are expected to keep battling hot spots and smoke for at least several more days while air quality monitoring and public-health guidance remain in place.