Concern: St. John’s Lane Elementary School: March 30th, 2022 (CSJLES2022000219)

Girl's Restroom Outside POD Containing Rooms 103 - 107
Date of IEQ Report Form
Date of Report
IEQ General Assessment identified water damaged drywall. Mold growth was observed behind drywall upon further investigation by Building Maintenance.
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)

Dates of Assessment:  March 11, March 25, and 29, 2022.

During the school's annual IEQ General Assessment on March 11, the base of the wall opposite the restroom entrance exhibited moisture damage and was wet per the use of a moisture meter.

Building Maintenance performed a more detailed inspection on March 25.  The damaged drywall is adhered to a cement block wall.  No source could be readily identified.

On March 29, the Office of Environment performed an additional assessment.  The classroom wall and wood casework on the other side of the restroom wall in question were dry as determined by the use of a moisture meter.  Other restrooms were assessed and it was determined student group restrooms with ceramic tile floors had some moist drywall (~1- 4" high).  Learned from the school's custodial staff that floor specialists from Custodial Services Office performed ceramic tile (grout) cleaning a few days prior (weekend).  The cleaning process uses more water compared to mopping.  Restrooms typically contain ceramic and cement block walls, not drywall.

On April 14, Building Maintenance completed work of replacing the base of drywall in impacted restrooms with a product (Azek) that is able to withstand water. 



Corrective Actions
March 25th, 2022

Building Maintenance removed impacted drywall against cement block wall in girls' restroom in POD 103 - 107 to allow block wall dry out.  Then replaced the length of the base of the drywall at least a foot high.  Then the remaining restrooms with ceramic floor tile and drywall were addressed by replacing the base (~4") of the drywall.  The drywall base was replaced with a water resistant product.

Date Closed
Tracking Number