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Why 500 Homes in La Verne Are Still Evacuated After the Battery Fire

The cooling process at the Weymouth facility is complex and taking time.

Portrait of Priya Raman
Housing & Development · September 24, 2026
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Why 500 Homes in La Verne Are Still Evacuated After the Battery Fire
Why 500 Homes in La Verne Are Still Evacuated After the Battery Fire

Here is the number that matters to you if you live in this area. More than 500 homes remain under an evacuation order as officials manage a complex situation at a local water treatment facility. The incident involves two overheating lithium battery storage units at the Metropolitan Water District’s F.E. Weymouth Water Treatment Plant in La Verne. This is not just a small flare-up. It is a situation that requires patience because the batteries are large and difficult to cool down completely.

Think of the F.E. Weymouth Water Treatment Plant as the center of this story. While the original fire report came in and was initially declared out, the danger has not vanished. The lithium batteries are continuing to generate heat. Crews are actively pouring water on these units to keep temperatures under control. This is a delicate process. Officials have noted that when cooling efforts were reduced, temperatures spiked. One battery unit reached about 300 degrees at approximately 3 p.m. The second battery unit reached about 112 degrees. These temperatures are high enough to cause concern and require constant attention. If you are wondering when life will return to normal here, the answer is not simple. The cooling process could take several days and experts are currently on site.

For the safety of the community, officials have established clear boundaries for the evacuation zone. The area is bounded by Moreno Avenue to the west, Foothill Boulevard to the north, B Street to the east and Paseo Drive, Winterhaven Drive and Kendrick Drive to the south. This geography matters because it tells you exactly who is affected. If you live in this square of streets, authorities want you to stay away for now. Police have been active in this zone, knocking on doors to advise residents to leave. Officers patrolled the area to ensure the message was received.

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One major concern for any homeowner is whether the air they breathe is safe and if their tap water is clean. You can breathe a little easier on that front. Officials report that air monitoring is happening around the clock. They have detected low-level air-quality impacts consistent with a lithium battery incident, but there are no hazardous air conditions detected off the property at the latest update. Furthermore, the safety of the local water supply has not been affected. Metropolitan Water District officials stated clearly that water remains safe to drink in La Verne and all areas served by the district. This is a specific detail that helps you understand that the utility infrastructure is holding up.

Life outside your home is also disrupted in specific places. Two local landmarks are closed due to the incident. Grace Miller Elementary School remains closed for the day, which impacts families with school-aged children. Pelota Park is also closed for all activities. These closures affect the entire community, not just the immediate blast zone. The fire also had a ripple effect on nearby businesses. Evacuations were also ordered at nearby shopping centers. The University of La Verne was temporarily closed and forced to close its facilities, though it reopened on Wednesday. These disruptions show how widespread the impact of a single facility issue can be.

If you have been displaced from your home, there is help available. Residents who need somewhere to stay can call the La Verne Police Department’s non-emergency line to find lodging. Officials said approximately 90 rooms were available for displaced families. They are also identifying additional lodging if needed. To help ease the burden on residents, overnight parking restrictions will not be enforced throughout La Verne through 5 a.m. on Friday. This allows people who have been displaced to park near their homes or at their workplace without worry. Understanding the logistics of a disaster is just as important as understanding the danger itself.

We still do not know the exact cause of the battery failure. This is a mystery that will be solved once the batteries are safe to handle. Officials state that the batteries cannot be safely dismantled or investigated until they stop generating heat and are fully de-energized. Until they stop producing heat or hazardous vapors, no one can approach them. Additional experts are expected at the facility to assist with the investigation. When the area is safe to approach, an investigation will begin. This means the process of understanding what caused the fire is still in its early stages. For those keeping an eye on the news, the priority now is the safety of the cooling process and the eventual return of residents to their daily lives.

First reported by Headtopics.

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