Concern: St. John’s Lane Elementary School: February 25th, 2019 (CSJLES20190000BA)

Team 2, Room #82
Date of IEQ Report Form
Date of Report
On February 25, 2019 an area on the carpet extending from the HVAC unit and measuring approximately 4-1/2 feet x 3 feet was noticeably wet. This was noted to be a re-occurring event after precipitation.
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)

Date(s) of Assessment: March 11 and 18, 2019

Wet carpet was observed around the rooms Unit Ventilator during the initial visit. Carpet fans were to be operated over the wet areas by Custodial Services. The areas were dry during a subsequent visit.

No mold growth or odors were identified.

The Unit Ventilator was opened up from inside the room. Water was observed on the floor of the Unit Ventilator. The water was observed below an open-ended copper tube. Water was observed dripping from the tube.

The condensate drain line appeared to have debris in it.

Water staining was observed above the window, located above the unit ventilator.

The drywall above the drop-ceiling was probed with a moisture meter (drywall setting), no elevated moisture was detected.

Gaps were observed at the outdoor intake grille and exterior of the building.

The window to the room was slightly open. It did not appear that the window was intentionally opened. 

Corrective Actions
March 18th, 2019

The window was closed and secured.

March 20th, 2019

Building Services (HVAC) replaced the clogged portion of condensate tubing and re-routed the open ended copper pipe to discharge into the condensate drain. 

March 22nd, 2019

Building Services checked the window for an active leak and did not identify one. While onsite, they re-sided around the outdoor intake grille to improve the seal.

Date Closed
Tracking Number