Concern: Waverly Elementary School: September 21st, 2018 (CWAVES2018000050)

Location
Portable 179 - Room 4
Date of IEQ Report Form
Date of Report
December 10th, 2018
Concern
An individual indicated they observed possible mold growth on the walls. The individual also indicated that the classroom is humid.
IEQ Investigation Process

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)
Findings

Mold growth was observed on select locations of the walls and on the back of a map.

Humidity readings were exceptionally high within the room.

The thermostat was incorrectly setup, with the fan in the "on" position instead of the "auto" position. This caused unconditioned humid summer outdoor air to be introduced into the space.

The remaining classrooms within the portable were checked for mold growth and proper thermostat settings. No concerns were identified with the other classrooms in the portable.

Corrective Actions
September 25th, 2018

A board approved restoration contractor cleaned/disinfected surfaces within the portable. The contractor operated an air scrubber equipped with High Efficiency Particulate Air (HEPA) filter during the cleaning. The air scrubber was left in place and operating for approximately 1-day after the cleaning.

Closed
Yes
Date Closed
Tracking Number
CWAVES2018000050