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 26, 2026
Rooms 160, 147, 171, 207 & 221
The classrooms generally consisted of carpet and vinyl floor tile, drywall and concrete masonry unit (CMU) walls, and suspended ceiling tile.
Temperature, relative humidity, and carbon dioxide readings were within acceptable ranges in each of the classrooms assessed.
Carpeted floors were assessed using a moisture sensor. No elevated moisture levels were identified within the rooms assessed.
Walls and windows were evaluated using a thermal infrared camera. No thermal anomalies indicative of active water intrusion were identified.
Several stained ceiling tiles consistent with past moisture intrusion were observed in the rooms assessed.
In Room 207, a ceiling tile was removed, and a leaking HVAC water pipe was observed discharging water into a brute trash can.
No visible mold growth was observed, with the exception of a ceiling tile in Room 221. The affected ceiling tile was removed and discarded by custodial staff.
Based on discussions with the HVAC shop, the elevated relative humidity previously identified as part of the concern, the stained ceiling tiles, and the leak observed in Room 207 appear to have been associated with an HVAC controls issue. The building automation system (BAS) had been programmed to allow chilled water to circulate through the piping while the air-handling units were not operating to provide conditioned air to the rooms. As a result, condensation formed on the piping. This caused deterioration of the pipe insulation and contributed to water leakage onto the ceiling tiles.
The HVAC controls issue was corrected by the HVAC shop prior to the assessment conducted by the Office of the Environment.
Building Maintenance (HVAC) to secure a contractor to remove and replace the deteriorated insulation around the affected piping.