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: January 22 and 27, 2020
The classroom contains a trough, located underneath the floor/floor tile. The trough is constructed of a metal box that contains utilities (gas and water) to the various workstations in the science classroom.
The trough contained ponded water and was in the process of being pumped out by Building Services (Plumbing) when the Office of the Environment arrived onsite.
The casework within the room was probed with a moisture meter. No elevated moisture was detected.
The cause of the leak was not apparent. It was decided to wait until Monday January 27 (no students in school) to perform a detailed assessment of the cause of the leak.
On January 27, the trough was re-opened for assessment. It was determined that a drain line to the middle sink was not properly connected, causing water to leak from the sink and into the trough, instead of the sanitary discharge.
While assessing the area, fans were placed within the trough to dry residual moisture.
Foam insulation was present and was removed to the extent possible. Small portions of foam insulation could not be removed due to their location. The remaining foam insulation was confirmed to be dry prior re-installation of the floor.
Building Services (Plumbing) cleaned residual debris from the trough.
The Office of the Environment confirmed the areas were dry and no malodors were detected.
Building Services (Plumbing) checked the remainder of the science rooms for similar leaks due to their similar construction. The remainder of the drains were properly connected.