The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
The Coronado News[3] (21 Apr 2026) quotes IBWC[4][6] environmental management chief Gilbert Anaya to the San Diego Water Board on 8 April: "Fifty million gallons of secondary treatment right now is targeted for what’s in our contract, which is 2030"; a year-only target is taken as its last day.
EPA’s June 2026 quarterly update: USIBWC "is advancing early work packages that lay the groundwork for the full expansion to 50 MGD".
The Coronado News[1] on the June 2026 EPA[2] update, repeating that the commission targets 2030 for the expanded capacity.
IBWC’s[6] August 2025 release, the source[1] of the original "at least 50 MGD by December 31, 2027" target.
ENR lists the planned headworks, tanks, sludge and 12 kV electrical works and the $600 million cost.
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Sites Reservoir when completed, the long-proposed, $4 billion Sites Reservoir will hold enough water to feed the needs of five million homes a year or a half million acres of farmland. That's enough water to cover every square inch of San Francisco with water that is 50 feet deep.