Possible Hyperion odor during 3-hour fan shutdown starting 5 a.m. Oct. 15
Hyperion Water Reclamation Plant will reinstall a repaired foul-air fan starting at 5 a.m. Thursday, Oct. 15, 2026. The City of El Segundo says the three-hour Headworks fan shutdown may be associated with some odor.

Some odor may occur while Hyperion Water Reclamation Plant reinstalls a foul-air fan starting at 5 a.m. Thursday, Oct. 15, 2026, the City of El Segundo says. The Headworks fan will shut down for three hours during the work.
Why it matters: Some odor may occur while the Headworks foul-air fan is shut down for three hours.
The plant borders El Segundo. The City of Los Angeles owns and operates the wastewater treatment facility.
The repaired fan will add backup capacity to the foul-air system and strengthen odor control, according to the City of El Segundo.
Call El Segundo’s 24-hour Hyperion reporting hotline at 310-318-8232 to report concerns, issues or complaints.
What’s next: Hyperion will begin reinstalling the fan at 5 a.m. Thursday, Oct. 15, 2026, with a three-hour Headworks fan shutdown.
Staff
Key facts
- Start
- Thursday, Oct. 15, 2026, starting at 5 a.m.
- Shutdown
- Three hours
- Possible effect
- Some odor may occur
- Reporting hotline
- 310-318-8232
Sources used
- City of El SegundoOfficial page for “City of El Segundo” (opens in a new tab)
Every claim checked against these records and approved by Abhishek Chopde. How we verify
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