Concern: Marriotts Ridge High School: March 1st, 2019 (CXMRHS20190000C0)

Student Services Office
Date of IEQ Report Form
Date of Report
The individual reported experiencing general health symptoms and requested the area be surveyed for mold.
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, 2019

No mold growth or odors were observed in the individuals office or the adjoining Student Services lobby.

No thermal anomalies indicative of moisture intrusion were observed with the exception of what appeared to be a small spill (likely a drink). 

Temperature readings were acceptable (70.4 degrees Fahrenheit).

Relative humidity (25%) was lower than recommended. However, HCPSS does not humidify air before delivering it to the indoor environment. Humidification can introduce other clinical environmental concerns such as humidifier fever.

Carbon Monoxide (0.0 parts per million (ppm)) and Carbon Dioxide (841 ppm) concentrations were acceptable.

Several picture frames and "nick-nacks" were observed on shelving.

Moderate dust deposits were observed on shelving.

The condition above the drop-ceiling was acceptable (several areas inspected including the individuals office, Student Services Lobby, and the file storage room).

The air handling unit that services the space was assessed. The coils, drain pan, and filters were acceptable.

The outdoor air dampers appeared closed.

Corrective Actions
March 11th, 2019

The Office of the Environment recommended the individual remove nick-nacks and picture frames to make it easier for Custodial Services to clean. If the individual would like these items to remain, they should be cleaned regularly (by the individual) and removed from shelving at the end of the day so that Custodial Services can easily clean the space.

March 11th, 2019

Building Services (HVAC) assessed the operation of the outdoor air dampers. It was reported that the dampers were operating but were in their minimum position at the time of the assessment.

March 13th, 2019

Custodial Services dusted the bookcases, desks, and shelving within the room.

Tracking Number