Concern: River Hill High School: October 23rd, 2018 (CXRHHS2018000082)

Health Room
Date of IEQ Report Form
Date of Report
Mold looks to be growing on the walls in both the bathrooms in the health 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)

Date of Investigation:  October 30, 2018

Random and spotty mold growth observed on painted surfaces of the drywall joint tape in both health suite restrooms.

The remainder of the health suite and an adjacent guidance office were inspected for mold growth.  No mold growth was observed on inspected surfaces.

Building Services indicated the exhaust fans were not working.

The cause is thought to be increased relative humidity from this summer's weather pattern (extreme moist air) and water vapor from water sources within the restroom.  The inability for air to be exhausted from the restrooms may have contributed to the mold growth on the taped seams.

Corrective Actions
October 26th, 2018

Per work order 93275 and Building Services communication, the exhaust fans were reviewed and addressed accordingly.  The exhaust fans were operating on October 30, 2018.


October 30th, 2018

The Office of Environment and custodial staff cleaned and disinfected the mold growth.  The mold growth was surfacial.

Date Closed
Tracking Number