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 Assessment: July 15, 2021
One to two square inches (extremely minimal) of suspect mold growth was observed on the bottom section of drywall within the storage closet (no higher than 4 inches from the ground).
The area was probed with a moisture meter (drywall setting). No elevated moisture was detected.
An access hole was cut to check for plumbing behind the drywall (potential leak source) and to inspect the backside of the drywall for mold growth. No plumbing was observed behind the drywall in the vicinity of the suspect mold and no mold growth was observed on the backside of the drywall.
Areas above the drop ceiling were inspected in the storage closet and in the adjoining bathroom. No evidence of leaking/moisture were observed.
The suspect mold growth was effectively removed when the drywall was cut for inspection. No further action is warranted.
A definitive cause was not identified but could have occurred from a historic incidental spill that went unnoticed.