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| Rough area affected by steam leak in Mayo- click on to enlarge |
07:52 Initial call steam in room from call center to Tim Lahti
07:53 Tony Bilderback reported to the scene
07:55 BSAC reported high DAT (discharge air temperature alarm) 100+F
07:56 Tony called related to above call
08:42 Tim Lahti on scene because no further info from Tony. Tim called for custodians to bring fans and mops.
Neil Carlson DEHS contacted by Tim Lahti at 9am. Overnight steam leak for air handling unit supplying small area B170 - B190 Mayo.
09:10 DEHS onsite assessment with FM bringing in fans and drying off the ceiling.
Mavo contacted with request for 10 dehumidification units by Tim Lahti 0:9:28
Clean Response on scene at 11:25 am.
Summary of events from Nicholas Greco:
The areas affected are B170-B180 "The Visible Heart Laboratory" Department of Surgery at the Medical School. This is level 1 of Mayo building.
Incident narrative:
At approx. 02:00hrs FM staff stated that a steam fitting in an air exchanging unit located in the basement level of the Mayo building failed. This air exchanger pulls in fresh outside "cold" air which is blown through the unit. The exchanger has copper coil piping where steam runs through. Once the cold air is heated, it is distributed to B170-B180 by forced air. The failed exchanger unit is labeled "Sup. 063" in the basement.
As steam leaked through the failed pipe or fitting it blew into the B170-B181 suites which included "The Visible Heart" laboratory, office space, research space and a workshop area.
FM staff making repairs on the Sup.063 area stated that this particular air exchanger had previously failed and repairs had recently taken place. New repairs were being made to soldered copper connections/joints in the air exchanger as we were surveying the damage.
Neil Carlson is on scene and had already notified MAVO, Steve Pardoe and Ann Martin. Most water clean up has already been completed. Clean Response will be bringing in dehumidifiers for the drying process.
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| Rusty lathe from steam leak - clean area on right was covered by glove |
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| steam damage to surface of drill press |
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| Water damaged desk |
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| Water damaged operating suite |
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| Water damaged medical equipment |
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| Custodian mopping condensed water off the ceiling |
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| Area of water damage |
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| Condensation on the ceiling |
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| Part of ceiling pealing off. |
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