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)
The Office of the Environment had been monitoring the area since August 10, 2020 as elevated humidity levels were identified during the school's annual IEQ Walkthrough.
The North Wing is located on the shady side of the structure and is likely more susceptible to bringing in outside air at a higher humidity compared to the other sides of the building.
The mold growth identified was extremely minimal and likely just "starting."
The mold growth occurred due to a variety of factors including outside weather conditions, the type of HVAC system at the school (unit ventilators), location within the building (North), and low occupancy.
Building Services (HVAC) closed the outside air dampers. The dampers will be re-opened around October 15th. The classrooms are not currently occupied.
Each chair in Room 304 was cleaned/disinfected by the Office of the Environment. The impacted wood in Room 358 was also cleaned/disinfected. No other mold growth has been identified in any of the other rooms to date.