Concern: Centennial High School: January 28th, 2020 (CXXCHS202000014A)

Auxiliary Gym and Storage Closet
Date of IEQ Report Form
Date of Report
During an IEQ Walkthrough assessment conducted on January 24, 2020, suspect discoloration was observed on portions of the metal roof deck in the auxiliary gym and the cement block wall in the storage room, across from the dance room.
IEQ Investigation Process

Identify deficiencies that may impact IEQ and/or sources of odor concerns. Typically includes the following depending on the nature of concern, but not limited to:

  • interview/questionnaire of concern individual(s)
  • inspection above drop ceiling (condition of roof deck, pipe insulation, return air plenum)
  • inspection of ventilation system (operation of variable air volume box and outdoor air dampers, check controls, measurements of carbon dioxide, temperature and relative humidity, sources near outdoor air intake, measure return and supply air volume, cleanliness of coils, liner and condensate pan)
  • inspection of exterior
  • inspection below drop ceiling (housekeeping, sink and floor drain traps, signs of past and present moisture concern via visual and/or moisture meter, mold growth, ensure connection of current and capping of abandoned sanitary vents, odorizers, excessive plants and fabric items, identify potential pathways, and measure volatile organic compounds, carbon monoxide, and lighting)

Dates of Assessment:  January 27, 30, and February 18, 2020.

On January 27, 2020 the Office of Environment further assessed the storage room.  Mold growth was confirmed on about 50 square feet of cement block wall (randomly dispersed) and a couple of ridges of the corrugated metal roof deck. The wall was cleaned and disinfected upon discovery.

On January 30, the Office of Environment and Building Services (Roofing) assessed the auxiliary gym with the aide of an aerial lift.  Spotty mold growth was observed on approximately 10 corrugated ridges of the metal roof deck along the perimeter wall.

The mold growth was determined to have occurred due to past events and is not a present concern due to the recent roof replacement, which addressed the likely cause.

Corrective Actions
February 17th, 2020

A board-approved restoration contractor cleaned the impacted areas and then encapsulated. The Office of the Environment confirmed work was completed on February 18, 2020.

Tracking Number