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: August 6, 2026
The Office of the Environment observed elevated relative humidity (>70%) within the areas serviced by air handling unit HRU-1 during a summer walkthrough.
The Office of the Environment observed visible mold growth on furniture in Rooms 102-111 (all serviced by HRU-1).
Based on Building Maintenance (HVAC) investigation, the system was programmed to allow chilled water to circulate through the piping without the air-handling units operating to provide cool air to the rooms. As a result, condensation formed on the piping, which caused the insulation around the pipes to deteriorate and contributed to water leaking onto the ceiling tiles and increase relative humidity in the spaces resulting in the observed mold growth.
A board approved restoration contractor cleaned and disinfected impacted services. A dehumidifier was placed in the impacted areas until Building Maintenance (HVAC) could complete an investigation and correct deficiencies.
Building Maintenance (HVAC) corrected the controls issues and verified that system was operating correctly.
Stained ceiling tiles and water damaged insulation due to condensation to be replaced.