Concern: Hammond Elementary School: March 1st, 2019 (CXXHES20190000C1)

Portable 13
Date of IEQ Report Form
Date of Report
July 1st, 2019
Black staining was observed on the ceiling of the portable during a Tier I IEQ Walkthrough.
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)

Date(s) of Assessment: March 1, 2019

The black staining observed was identified as mold growth by the Office of the Environment. The mold growth was observed on the textured ceiling, surrounding multiple supply air diffusers and return air grilles.

Portions of the ceiling were removed so that the area above the ceiling could be assessed. No visible mold growth was observed above the ceiling or on the top-side of the ceiling.

Building Services (Roofing) assessed the portables roof. No deficiencies were found with the roof.

The mold growth may have occurred due to an improper thermostat setting. Too cold of a setting could have overcooled the areas around the diffusers, causing condensation and subsequent mold growth.

Corrective Actions
March 1st, 2019

Potions of the impacted ceiling were removed. Surrounding areas were cleaned and disinfected.

Tracking Number