{
  "id": "2026-09-22-university-of-washington-ece-building-gas-leak",
  "slug": "university-of-washington-ece-building-gas-leak-2026-09-22",
  "institution": {
    "name": "University of Washington",
    "shortName": "UW",
    "state": "WA",
    "type": "public-r1",
    "alertSystemName": "UW Alert",
    "enrollment": 48000
  },
  "incident": {
    "date": "2026-09-22",
    "type": "gas-leak",
    "cleryCategory": "emergency-notification",
    "resolution": "resolved",
    "headline": "Gas leak at the Electrical and Computer Engineering building, then reopened",
    "headlinePublic": "Gas leak at the Electrical and Computer Engineering building, then reopened",
    "summary": "UW Alert [reported a possible gas leak](https://emergency.uw.edu/2026/09/22/uw-alert-hazardous-materials-response/) at the Electrical and Computer Engineering building, then said the source was outside and the area was reopening.",
    "outcome": "Firefighters found no leak inside. The 9:36 a.m. update said the outside source was located, repairs were underway, and the building and surrounding area were reopening."
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "channel": "multi-channel",
      "verbatimText": "8:30 a.m.: Seattle firefighters are responding to a report of a possible gas leak at the UW’s Electrical & Computer Engineering building. The building is being evacuated. Avoid the area. ",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://emergency.uw.edu/2026/09/22/uw-alert-hazardous-materials-response/",
      "sourceDescription": "UW Alert 8:30 a.m. gas leak",
      "annotations": [
        "sha256 f87dbbf24c4d3630d08e5fdb8eee1ba8375b4e685edc9951c1af91f86be9910c. Visible post line is September 22, 2026 8:30 am. The time element datetime is 2026-09-22T08:30:20-07:00.",
        "Dual extract of the entry-content paragraphs matched sha256 280d256624faf6927bb22b25f4c2f87bc144a66c3ee43827ccc9d2b4c2de5bf9 on the saved page and on a second download.",
        "Distinct from 2026-09-16-university-of-washington-hans-rosling-refrigerant-leak."
      ],
      "characterCount": 187,
      "timestamp": "2026-09-22T08:30:00-07:00"
    },
    {
      "sequence": 2,
      "type": "update",
      "channel": "multi-channel",
      "verbatimText": "UPDATE 8:38 a.m.: After an initial investigation, firefighters have found no indication of a gas leak inside the building. Air quality monitoring indicates that a gas leak may be occurring outside of the building. Continue to avoid the area.  ",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://emergency.uw.edu/2026/09/22/uw-alert-hazardous-materials-response/",
      "sourceDescription": "UW Alert 8:38 a.m. update",
      "annotations": [
        "sha256 cf23e9dd05aa520a0ccfc872fce6033f5c1591cdb030d808ec40421885f78007. In-message clock is 8:38 a.m."
      ],
      "characterCount": 243,
      "timestamp": "2026-09-22T08:38:00-07:00"
    },
    {
      "sequence": 3,
      "type": "all-clear",
      "channel": "multi-channel",
      "verbatimText": "UPDATE at 9:36 a.m.: The source of the gas leak has been located outside of the UW’s Electrical & Computer Engineering building. Repairs are underway. The building and the surrounding area are reopening. ",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://emergency.uw.edu/2026/09/22/uw-alert-hazardous-materials-response/",
      "sourceDescription": "UW Alert 9:36 a.m. update",
      "annotations": [
        "sha256 57073f3367eb1807934b10ca836457e78a1bfd03070d408ea3092a702cdc8e09. In-message clock is 9:36 a.m. The page updated datetime 2026-09-22T09:47:55-07:00 is the CMS stamp, not this sentence's clock."
      ],
      "characterCount": 204,
      "timestamp": "2026-09-22T09:36:00-07:00"
    }
  ],
  "context": "The sequence is one [UW Alert post](https://emergency.uw.edu/2026/09/22/uw-alert-hazardous-materials-response/) on the [UW Alert blog](https://emergency.uw.edu/). Seattle firefighters responded at the Electrical and Computer Engineering building.",
  "keyFindings": [
    "Three-message gas-leak sequence: evacuate and avoid, then no indoor leak, then outside source located and the area reopening."
  ],
  "sources": [
    {
      "title": "UW Alert hazardous materials response",
      "url": "https://emergency.uw.edu/2026/09/22/uw-alert-hazardous-materials-response/",
      "type": "official-archive",
      "accessDate": "2026-09-29",
      "archiveUrl": null,
      "archiveNotes": "SPN 523 at 18:35Z; not retried this batch"
    }
  ],
  "confidence": "high",
  "tags": [
    "public-r1",
    "washington",
    "uw",
    "gas-leak",
    "hazmat"
  ],
  "dateAdded": "2026-09-29",
  "lastUpdated": "2026-09-29",
  "addedBy": "ingestion"
}