For most of Los Angeles' history, that “finished water storage” was out in the open air. But in the 2000s, drinking-water rules pushed utilities to add stronger protection for treated water held in uncovered reservoirs. There’s a good chance you’ve seen their solution on the Veritasium channel or elsewhere: 96 million plastic shade balls that act like a floating cover, blocking sunlight to prevent water-chemistry problems and helping keep wildlife out. They’re the final protection for this water that traveled so long to reach the city. While the LA Reservoir is, in a sense, the end of the journey for this water, the original diversion way back at Owen’s River isn’t even technically the start anymore!
2026年03月19日 12:27:57
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