South Bay International Wastewater Treatment Plant, Tijuana River Valley, San Diego, California, 92173, United StatesInternational Boundary and Water Commission
CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins88% CONFIDENCEOverall confidence: 88%How well the pin's source and references back up its dates.Weighted average of how firmly 6 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
EPA’s[1] release dated August 28, 2025: "Today, ... Administrator Lee Zeldin and ... Commissioner Chad McIntosh announced the completion of the 10 million-gallon-per-day (mgd) expansion"; EPA’s public updates page: "USIBWC completed 10 million gallons per day (mgd) interim expansion ... on August 28, 2025."The border plant that treats Tijuana sewage went from 25 to 35 million gallons a day, a 40% jump finished in 100 days instead of the two years first planned.
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