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: June 24, 2019
It was reported that the leak occurred approximately "a week-and-half ago."
It was reported that the toilet overflowed (clean-water), impacting the girls bathroom.
Elevated moisture readings were detected in the drywall and wood sub-floor.
Mold growth was identified underneath the vinyl sheet flooring, sub-floor, behind cove base, and on drywall.
A board-approved restoration contractor removed the vinyl sheet flooring, impacted sub-flooring, impacted drywall, and impacted cove base. After these materials were removed, the backside of the drywall in the adjoining closet was also found to be impacted by mold. This drywall was removed as well. Additionally, the fiberglass insulation below the flooring was found to be wet (no mold growth). The wet insulation was removed. After the removal, the wood studs and framing was dried using fans and dehumidifiers. Once dry, these materials were encapsulated.
In the future, administration and/or custodial is to notify the Office of the Environment if a leak impacts porous materials such as carpet, drywall, etc.