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: October 24, 2024
In response to a report from school staff, the Office of the Environment identified the presence of mold growth (approximately 10 square feet) on a piano cover located on the stage.
No visible mold was observed on the piano or other items on the stage.
Temperature (71.5 F), carbon dioxide (643 ppm), and relative humidity (43.5 %) readings were collected.
The trend data for the space was reviewed. Based on HVAC trend data, the mold growth was likely caused by elevated relative humidity in the space between September 25th and October 4th. Exterior temperatures/relative humidity were unfavorable at this time due to a large amount of regional precipitation. The cause of the mold growth is associated with regional weather conditions and a possible deficiency with the dehumidification sequence of the HVAC unit that serves this zone.
The piano cover is to be discarded if it has not already been discarded.
Building maintenance (HVAC) is investigating the HVAC system’s operation and is to correct any deficiencies identified. Depending on the findings, the area may need to be monitored next Summer.