Indoor Environmental Quality General Assessment of Waterloo Elementary School: March 8th, 2021 (GWATES2021000037)

Assessor
Jeffrey Klenk
Date

Air Distribution and Terminal System (Assess 2-3 Locations per HVAC Zone)

Ductwork (Supply and Return)
Check OK Comments
Condition
No odors, noise or vibration
Yes
Clean, no obstructions
Yes
Free from signs of moisture/mold, insects or rodents?
Yes
No noticeable air leaks
Yes
Plenum
Check OK Comments
Ceiling Tiles
Tight seal on all tiles
Yes
No stained/damaged tiles indicating high RH or moisture problem
Yes
Supply Diffusers, Return Grilles, Exhaust Grilles
Check OK Comments
Condition
No odors or unusual sounds
Yes
Clean, no excess dirt or moisture
Yes
No obstruction to air flow
No
Air flow was not sensed from the supply air diffusers in rooms 62, 78, and 206A. Rooms 62 and 78 share the same ventilation unit / zone while 206A has its own unit. Findings were discussed with the school's HVAC mechanic who happened to be on site. The HVAC Shop is aware of unit PRTU 101 tripping off over a cold weekend and in the process of diagnosing. The HVAC mechanic receives an alarm to know PRTU has shut down. The mechanic was in the process of physically turning the unit back on. The HVAC mechanic checked the unit serving 206A. The unit was found to be working. The unit may have cycled on later than other units and after the interior inspection of room 206A.
No purposely placed obstruction indicating occupant distress
Yes
Location
No short circuiting between supply and return
Yes
Doors
Doors not tight or difficult to close indicating large pressure differential
Yes

Building

Envelope
Check OK Comments
Foundation
No moisture penetration or signs of mold?
Yes
Doors and Windows
Caulking and weather stripping in good condition
No
Portable 78. While probing a previous (repaired) water intrusion incident around a window, the teacher indicated the window continues to leak during heavy rains. No signs of moisture were observed or detected with a moisture meter at the time of the inspection. Work Order 183360.
Classrooms (Assess 2 to 3 per HVAC System Zone)
Check OK Comments
Condition
Room is free of dust and clutter
No
An odor was detected in room 132. The odor was from scented oil wicking sticks. Teacher was informed. School administration is to remind staff air fresheners of any type are not permitted.
No stained or damage ceiling tiles
No
Water stained ceiling tiles observed in room 51, 96 (few in storage closet), and the hallway near the water fountain located between second and third grade pods. Custodial staff is to submit a work order to Building Services if not already being addressed.
No visible mold present (walls, cabinets, under sinks, behind posters)
Yes
Relative Humidity
Not above 70%
Yes
Mechanical/Boiler Rooms (Assess Each)
Check OK Comments
Condition
Clean
Yes
No unusual noise or odor
Yes
No mold growth on insulation
Yes
Traps contain water
Yes
Chemical Storage
Containers capped
Yes
No evidence of an active spill
Yes
Fan Coil Units/VAV Boxes
Check OK Comments
Condition
No odors, or unusual noise or vibration
No
The thermostat in portable 143 displayed "replace battery". Work Order 183350.