References 381% CONFIDENCEOverall confidence: 81%How well the pin's source and references back up its dates.Weighted average of how firmly 3 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

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.

• [1]90%
  abcnews.com/US/lake-mead-nations-largest-reservoir-reaches-lowest-water/story?id=135455720

  abcnews.com· Posted Sep 24, 2026· Starts Aug 6, 2026 ✓· 38% of score

  ABC News (7 Aug 2026): 'The water level at Lake Mead ... hit a record low on Thursday' at 1,040.50 feet, 'according to data published by the U.S. Bureau of Reclamation on Friday'.

• [2]80%
  Lake Mead hit a record-low water level. Why experts say the benchmark needs context

  san.com· Published Aug 7, 2026· 31% of score

  'As of Aug. 6, 2026, the surface level sits at 1040.50 feet above sea level, marking the least amount of water sitting in the reservoir since it was filled in the 1930s.'^[1]

• [3]70%
  Lake Mead falls to lowest level ever recorded

  western-water.com· Published Aug 7, 2026· 31% of score

  1,040.5 feet against the previous record of 1,040.58 feet set on 28 July 2022; the lake had dropped every day since 31 July (dates the low 'August 7').^[1]

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