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El Segundo councilmember reports Hyperion mosquito response, hiring delay and AQMD odor violation
Summary
A councilmember updated the El Segundo City Council on mosquito mitigation steps at Hyperion, a change in recruiting firms for the plant manager role, 27 recent odor complaints and one AQMD nuisance violation, and short-term electrical testing at the plant’s Headworks Building.
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A council member updated the El Segundo City Council on Hyperion operations, saying the county-operated plant has formed a maintenance team to search for mosquito breeding sites, that recruiting for a plant manager has been restarted with a different firm, and that air-quality officials logged recent odor complaints and issued one nuisance violation.
The council member said Hyperion staff are “walking the entire plant to identify any possible mosquito breeding grounds” and using vacuum trucks or portable pumps to remove standing water. The speaker said two Hyperion employees were sent to pesticide-certification classes and that Los Angeles County Vector Control District mosquito counts from May 8 showed lower numbers than the May 1 reading.
The update also covered facility staffing: the council member said the city’s initial recruiting contact, Ryan Jackson, is no longer with the firm and that Jackson’s supervisor, Randall Winston, has taken over recruitment. The council member said the plant manager position remains budgeted and that Hyperion has reengaged a different recruiting firm to fill the role.
On odor complaints, the council member said the Air Quality Management District (AQMD) received 27 complaints in the previous two weeks and issued one nuisance violation on May 2. The speaker added that Hyperion plans electrical testing at its Headworks Building the following day; the test is expected to take roughly two hours and could leave the Headworks blowers offline or operating at partial capacity while doors and gates remain shut.
The council member said the city had previously tasked the city attorney with exploring whether the city could withdraw from its billing agreement with Hyperion and reported that the attorney was unable to find a viable way to do so. No formal council action to change the billing arrangement was reported.
The update combined operations, regulatory and staffing information and included specific steps Hyperion is taking on mosquito control, a staffing update, recent AQMD enforcement activity, and a near-term test of backup power preparedness at the Headworks Building.

