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Pima

Desert Vista Campus gas leak evacuation and class cancelation

AI-generated · every claim is source-linked
AZhazmatemergency notificationhigh confidence

Pima posted a Desert Vista Campus evacuation for a gas leak, canceled classes for the rest of Dec. 11, then said Southwest Gas fixed the leak with campus closed the remainder of the day.

Alerts
3
Response
—
Killed
0
Injured
0
Institution
Pima Community College
Community College · AZ
All Pima cases →
~45,000 studentsPCCAlert
Official alert policy
Read when and how Pima says it will use PCCAlert: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

3 messages in sequence · 3 verified verbatim

Confirmed wording is transcribed character-for-character from a primary source. Use Verify this quote under each message to open that source in a new tab and compare the text yourself.

INITIAL ALERTTwitter/X
Verified verbatim181 chars
Pima is evacuating its Desert Vista Campus due to a reported gas leak: utility responding, campus evacuating. Updates will be posted here and via PCC alerts: https://t.co/qj69WAs4XB
Full text from @pimatweets 1734332219135578305
UPDATETwitter/X+24 min
Verified verbatim253 chars
Pima has cancelled classes at Desert Vista Campus for the rest of Dec. 11 due to a reported gas leak. Southwest Gas is on the scene. Please, avoid the area. Updates will be posted via PCC alerts: https://t.co/qj69WAs4XB @pccfye @pimafye @pimastudentlife
Full text from @pimatweets 1734338221197099378
UPDATETwitter/X+1h 30m
Verified verbatim255 chars
Southwest Gas has identified and fixed the reported gas leak at Pima's Desert Vista Campus. The campus will be closed, and no classes held the rest of today. It will resume normal business Dec. 12: https://t.co/qj69WAsCN9 @pccfye @pimafye @pimastudentlife
Full text from @pimatweets 1734354867328794885
Message elements

How the first alert is built

To check this alert, Claude Opus 5 (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

Pima is evacuating its Desert Vista Campus due to a reported gas leak: utility responding, campus evacuating. Updates will be posted here and via PCC alerts: https://t.co/qj69WAs4XB

  • Sourcepresent25/25

    Final assessment

    Present, unanimous at 25 of 25. "Pima is evacuating its Desert Vista Campus" has the college speaking for itself, and it points readers to "PCC alerts" as its own channel.

    Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

    See all 25 individual reads
    1. present: "Pima" speaks for itself and points to "PCC alerts" as its own notification channel.
    2. present: "Pima" and "PCC alerts" identify the college as the source.
    3. present: "Pima" and "PCC alerts" identify the college as the sending institution.
    4. present: Names "Pima" as the institution acting and points to "PCC alerts".
    5. present: Pima is named as the acting institution and "PCC alerts" as the channel.
    6. present: "Pima" names the college as the entity evacuating and issuing the notice.
    7. present: "Pima" names the college itself, and it points to official "PCC alerts".
    8. present: "Pima" names the college, and it points readers to "PCC alerts" as its channel.
    9. present: "Pima" names itself and points readers to "PCC alerts" as the channel.
    10. present: "Pima" and the reference to "PCC alerts" identify the college as the sending body.
    11. present: The message names Pima and refers to "PCC alerts" as the notifying system.
    12. present: "Pima" names the college as the body evacuating and issuing updates.
    13. present: "Pima" names the college and it points to "PCC alerts" as its channel.
    14. present: "Pima" and the reference to "PCC alerts" identify the college as sender.
    15. present: "Pima" names the college and points to "PCC alerts" as the official channel.
    16. present: "Pima" and the reference to "PCC alerts" identify the college as sender.
    17. present: "Pima" and the reference to "PCC alerts" identify the college as sender.
    18. present: "Pima" names the college as the actor, and it points to "PCC alerts" as its channel.
    19. present: "Pima" names the college issuing the notice and pointing to "PCC alerts".
    20. present: Pima identifies itself and points to "PCC alerts" as the notification channel.
    21. present: The message names "Pima" and points to "PCC alerts" as the notifying institution.
    22. present: "Pima" names itself and points to "PCC alerts" as the official channel.
    23. present: "Pima" names itself and points to "PCC alerts" as the notification channel.
    24. present: "Pima" and "PCC alerts" identify the college as the sending authority.
    25. present: "Pima" and the reference to "PCC alerts" identify the college as sender.
  • Hazardpresent25/25

    Final assessment

    Present, unanimous at 25 of 25. The trigger is named specifically as "a reported gas leak" rather than left as an unexplained evacuation.

    What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

    See all 25 individual reads
    1. present: The trigger is stated as "a reported gas leak".
    2. present: The hazard is "a reported gas leak".
    3. present: The trigger is "a reported gas leak", a specific hazard.
    4. present: Names "a reported gas leak" as the hazard.
    5. present: States "a reported gas leak", a specific hazard.
    6. present: The cause is specific: "a reported gas leak".
    7. present: The cause is specified as "a reported gas leak".
    8. present: The threat is named specifically as "a reported gas leak".
    9. present: The cause is "a reported gas leak", a specific hazard.
    10. present: The cause is named as "a reported gas leak".
    11. present: The cause is given as "a reported gas leak", a specific hazard.
    12. present: It states the cause as "a reported gas leak", a specific hazard.
    13. present: The hazard is stated as "a reported gas leak".
    14. present: "a reported gas leak" names the specific hazard.
    15. present: The cause is specific, "a reported gas leak" at the campus.
    16. present: The cause is specifically "a reported gas leak".
    17. present: It names "a reported gas leak" as the hazard.
    18. present: The cause is specific: "a reported gas leak".
    19. present: The cause is specified as "a reported gas leak".
    20. present: Names "a reported gas leak" as the hazard.
    21. present: The cause is stated as "a reported gas leak".
    22. present: The reason given is "a reported gas leak", a specific hazard.
    23. present: The reason is specific: "a reported gas leak".
    24. present: The cause is specific: "a reported gas leak".
    25. present: The hazard is stated as "a reported gas leak".
  • Locationpresent25/25

    Final assessment

    Present, unanimous at 25 of 25. The affected site is named as "its Desert Vista Campus", one identified campus out of the college system.

    Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

    See all 25 individual reads
    1. present: The place is specified as the "Desert Vista Campus".
    2. present: The affected site is the "Desert Vista Campus".
    3. present: The affected site is "its Desert Vista Campus".
    4. present: Identifies "its Desert Vista Campus".
    5. present: Identifies "its Desert Vista Campus" as the affected site.
    6. present: It names "its Desert Vista Campus" as the affected location.
    7. present: It names the affected site as "its Desert Vista Campus".
    8. present: The location is "its Desert Vista Campus".
    9. present: It is located at "its Desert Vista Campus".
    10. present: The location is "its Desert Vista Campus".
    11. present: It identifies "its Desert Vista Campus" as the affected site.
    12. present: The site is named as "its Desert Vista Campus".
    13. present: The affected site is "its Desert Vista Campus".
    14. present: It specifies "its Desert Vista Campus".
    15. present: It identifies "its Desert Vista Campus" as the affected site.
    16. present: It names "its Desert Vista Campus" as the affected site.
    17. present: The location is "its Desert Vista Campus".
    18. present: The affected site is "its Desert Vista Campus".
    19. present: The site is named as "its Desert Vista Campus".
    20. present: Specifies "its Desert Vista Campus".
    21. present: It names "its Desert Vista Campus" as the affected site.
    22. present: It names the "Desert Vista Campus" as the site being evacuated.
    23. present: The location is "its Desert Vista Campus".
    24. present: The location is "its Desert Vista Campus".
    25. present: It names the "Desert Vista Campus" as the affected site.
  • Guidanceabsent2/25

    Final assessment

    Absent, at 2 of 25. The text narrates "utility responding, campus evacuating" without ever telling the reader to leave; two reads treated the announced evacuation as an implied order.

    The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

    See all 25 individual reads
    1. absent: It narrates that the campus is evacuating and utilities are responding, without instructing recipients.
    2. present: An ordered evacuation of the campus effectively directs occupants to leave.
    3. absent: It reports that the campus is evacuating rather than telling readers to evacuate.
    4. absent: It reports that the campus is evacuating rather than telling readers to evacuate.
    5. absent: Describes the utility responding and campus evacuating rather than instructing the reader.
    6. absent: It reports the campus evacuating and utility responding but issues no instruction to readers.
    7. absent: It reports that the campus is evacuating rather than instructing the reader to evacuate.
    8. present: The statement that the "campus evacuating" conveys that occupants are to leave the site.
    9. absent: It reports that the campus is evacuating rather than instructing readers to evacuate.
    10. absent: It reports that the campus is evacuating rather than telling recipients to evacuate.
    11. absent: It reports that the campus is evacuating rather than instructing the reader to evacuate.
    12. absent: It reports that the campus is evacuating rather than instructing readers to evacuate.
    13. absent: It reports that the campus is evacuating rather than instructing readers to evacuate.
    14. absent: It describes the college and utility acting but never tells readers to evacuate.
    15. absent: It reports that the college is evacuating rather than instructing recipients to evacuate.
    16. absent: It reports that the campus is evacuating rather than instructing readers to evacuate.
    17. absent: It narrates that the campus is evacuating rather than instructing recipients to evacuate.
    18. absent: It describes the campus evacuating rather than instructing recipients to evacuate.
    19. absent: It narrates that the campus is evacuating rather than instructing readers to evacuate.
    20. absent: It narrates that the campus is evacuating rather than telling readers to evacuate.
    21. absent: It describes the campus evacuating and the utility responding rather than instructing recipients.
    22. absent: It describes that the campus is evacuating rather than telling the reader to evacuate.
    23. absent: It describes the campus evacuating rather than instructing recipients to evacuate.
    24. absent: It reports that the campus is evacuating rather than instructing readers to evacuate.
    25. absent: It reports that the campus is evacuating rather than telling readers to evacuate.
  • Timeabsent9/25

    Final assessment

    Absent, at 9 of 25, but the split is real. No clock time or date appears, though nine reads counted the present progressive "is evacuating" and "utility responding" as marking the event as unfolding now.

    When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

    See all 25 individual reads
    1. present: Present progressive phrasing, "is evacuating" and "utility responding", marks this as unfolding now.
    2. absent: No clock time, date, or word like now situates the event.
    3. absent: No clock time, date, or word like now situates the event in time.
    4. absent: No time, date, or explicit recency cue is provided.
    5. absent: No clock time, date, or explicit recency word appears in the text.
    6. absent: No clock time, date or recency word appears in the text.
    7. absent: No time, date, or recency wording is included in the message.
    8. absent: No clock time, date, or recency word marks when the leak was reported.
    9. absent: No clock time, date, or explicit recency word is given.
    10. present: Present progressive phrasing, "is evacuating" and "utility responding", marks an ongoing event.
    11. present: The progressive "is evacuating" with "utility responding" marks an event unfolding now.
    12. absent: No time, date, or recency word marks when the leak was reported.
    13. present: Present progressive wording, "is evacuating" and "utility responding", marks it as happening now.
    14. absent: No clock time, date, or recency word is present.
    15. absent: No time, date, or word such as now anchors the message temporally.
    16. absent: No time stamp or recency word such as now appears in the text.
    17. present: "is evacuating" and "utility responding" present the situation as happening now.
    18. present: The progressive verbs "is evacuating" and "utility responding" mark this as ongoing now.
    19. absent: No clock time, date, or recency word appears in the sentence.
    20. present: Present participles "responding" and "evacuating" mark the situation as ongoing.
    21. absent: No clock time, date, or word like now indicates when this is happening.
    22. present: "utility responding, campus evacuating" presents the situation as ongoing right now.
    23. absent: No clock time, date, or word marking the event as current appears.
    24. present: Present tense "is evacuating" and "utility responding" mark the event as ongoing.
    25. absent: No clock time, date or recency word such as now appears.
  • Impactabsent0/25

    Final assessment

    Absent, with 0 of 25 finding impact. A gas leak is reported with no mention of fire, explosion, exposure or any other consequence of the leak.

    What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

    See all 25 individual reads
    1. absent: The gas leak is reported with no mention of fire, explosion or health risk.
    2. absent: It notes a utility is responding but never states the leak's potential harm.
    3. absent: Nothing states what the gas leak could do to people or buildings.
    4. absent: No mention of explosion risk, exposure, or other consequences.
    5. absent: Gives no indication of explosion risk, health effects, or severity.
    6. absent: No consequence of the gas leak, such as explosion or illness risk, is stated.
    7. absent: Nothing states the gas leak's potential effects such as fire or health risk.
    8. absent: No explosion or health risk, or any other consequence, is described.
    9. absent: Nothing states what the gas leak could do to people or buildings.
    10. absent: No explosion risk or health consequence of the leak is described.
    11. absent: No potential consequence such as explosion or health risk is stated.
    12. absent: Nothing conveys explosion risk, health effects, or severity of the leak.
    13. absent: Nothing states what the leak could cause or how dangerous it is.
    14. absent: Nothing states the risk from the leak, such as explosion or exposure.
    15. absent: No explosion risk, health effect, or other consequence of the leak is stated.
    16. absent: The message states no consequence or danger from the leak.
    17. absent: No explosion risk, injury potential or other consequence is stated.
    18. absent: No danger, explosion risk, or health consequence of the gas leak is stated.
    19. absent: No severity or potential harm from the gas leak is described.
    20. absent: No consequence, such as explosion or illness risk, is stated.
    21. absent: No consequence of the gas leak, such as explosion or health risk, is stated.
    22. absent: The leak is reported without any statement of explosion or health risk.
    23. absent: Nothing states what the gas leak could do or how dangerous it is.
    24. absent: No explosion risk or health consequence of the gas leak is stated.
    25. absent: Nothing states what the gas leak could do or how serious it is.

Coded by Claude Opus 5

Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

Pima via @pimatweets.
Analysis

Key Findings

Complete gas-leak evacuation/cancel text
Outcome
Gas fixed; campus closed rest of Dec. 11; normal business Dec. 12.
Provenance

Sources

Every claim on this page is meant to be checkable. Open the links below (and the Verify this quote control under each confirmed alert) to read the original university, news, or archive page yourself. Hostnames are shown so you can see where you are going; archived copies survive when live pages move or disappear. See also our methodology.

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Cite this case

Campus Alert Archive. "Pima Community College: Desert Vista Campus gas leak evacuation and class cancelation." Incident of December 11, 2023. Added July 2026. https://campusalertarchive.com/case/pima-community-college-desert-vista-gas-leak-2023-12-11/

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Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
gas-leakpimadesert-vista
Added July 2026Updated July 2026Via ingestion