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Air district flags three Clearlake sewer pump generators as toxic 'hotspots'; replacement or mitigation needed
Summary
The Lake County Air Quality Management District identified three older diesel backup generators at sewer pump stations in Clearlake as new "hotspots" under updated 2024 risk calculations; district staff said owners must propose engine replacement, shutdown, or certified filtration plans and are typically given about a year to implement risk reductions.
The Lake County Air Quality Management District told Clearlake city officials that three backup diesel generators serving sewer pump stations in the city now qualify as toxic "hotspots" under the district's updated 2024 risk-calculation rules.
Doug Gearhart, the districtAir Pollution Control Officer, said the 2024 update added diesel particulate and revised risk-prioritization guidance, creating nine countywide hotspots and three within Clearlake. The identified sources are…
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