Concern: Bollman Bridge Elementary School: November 17th, 2018 (CXBBES201800008F)

Gym Office
Date of IEQ Report Form
Date of Report
School custodial staff reported mold growth on chairs within the gym office.

Note: The Office of the Environment has recently transitioned to a new Online IEQ platform (as of August 2018). The new platform does not allow the back-dating of IEQ concerns. This concern is inappropriately dated November 17, 2018. The concern should be dated August 15, 2018.
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:  August 15, 2018

Mold growth was observed on three chairs and plastic component's of the air conditioning unit within the gym office.

The mold growth was thought to be related to over cooling (creates condensate) of the office space and/or unconditioned warm humid air from the gym entering into the gym office.  Overall, this summer's extended and excessive moist air was a main contributor.

Mold growth was not observed on other surfaces within the office or gymnasium.

Corrective Actions
August 15th, 2018

Custodial staff were instructed to disinfect and HEPA vacuum chairs and/or discard.

August 27th, 2018

Building Services cleaned and serviced the gym office's air conditioning unit and set the thermostat to 73 degrees.

Tracking Number