ISK
ANAGEMENT鈥?
Jeffrey S. Moquin, Director Telephone: 754-321-3200
Risk Management Department Facsimile: 754-321-3290
Siignatture on Fiille
November 21, 2007 S gna ure on F e For Custodial Supervisor Use Only
Custodial Issues Addressed
TO: Mr. Washington Collado,, Principal
Lyons Creek Middle School
Custodial Issues Not Addressed
FROM: Aston Henry, Supervisor
Risk Management Department
SUBJECT: Indoor Air Quality (IAQ) Assessment
Portable 302C and 625C
On September 18, 2007 I conducted an assessment of Portable 302C and 625C at Lyons Creek Middle School.
This evaluation included observations of the flooring system, ceiling tiles, false ceiling plenum, environmental
surfaces, interior and exterior walls, and the accessible ventilation equipment. Additionally, environmental
parameter measurements were taken to include temperature, relative humidity, and carbon dioxide. The
detailed findings, along with the recommended corrective action can be found on the attached IAQ Assessment
Worksheets.
The IAQ assessment did identify one or more existing conditions impacting IAQ and has generated appropriate
work orders to correct deficiencies in systems and maintenance that could contribute to decreased indoor air
quality. At the time of the assessment, these concerns were not an immediate health or safety concern to
building occupants. However, due to individual sensitivities and predisposing health factors, it is possible that
some building occupants may elicit a health response to agents and / or conditions identified during the
evaluation. Therefore, to further improve IAQ, prevent development of future IAQ-related problems, and to
reduce the potential for IAQ-related complaints by building occupants, the IAQ Assessment Team recommends
appropriate follow up of each item identified and listed in the attached evaluation.
Please ensure that your Head Facilities Serviceperson receives a copy of this correspondence so that the
recommendations requiring their attention can be addressed. Within two weeks a representative from the
Custodial/Grounds Department will conduct a follow-up visit to ensure that all issues have been appropriately
addressed.
Should any questions arise, or if the current concerns continue after the attached recommendations have been
addressed, please feel free to contact me at 754-321-3200.
cc: Dr. Joanne Harrison, Area Superintendent
Sharon Airaghi, Area Director
Jeffrey S. Moquin, Director, Risk Management
Marshall Washington, Project Manager, Facilities and Construction Management
Lynn Cavall, Broward Teachers Union
Roy Jarrett, Federation of Public Employees
Mark Dorsett, Manager 1, Physical Plant Operations Division, Zone 1
Roy Norton, Manager Custodial/Grounds, Physical Plant Operations Division
Robert Krickovich, Coordinator, LEA, Facilities and Construction Management
AH/tc
Enc.
The School Board of Broward County, Florida
3101
IAQ Assessment Location Number
September 12, 2007
Evaluation Requested
Lyons Creek Middle School
September 18, 2007
Evaluation Date
1:35 pm
Time of Day
Outdoor Conditions Temperature 87.2 78.9
Relative Humidity Ambient CO2 463
Temperature
Fish Relative Humidity CO2
Range # Occupants
Range
Range
P-302C 67.4 64.8 2121 18
72 - 78 Max 700 > Ambient
30% - 60%
Visible water Visible microbial Amount of material
No
Noticeable Odor
damage / staining? growth? affected
2 x 4 Lay In 1 ceiling tile
Ceiling Type No
Yes
Gypsum Board
Wall Type None
No
No
Tile
Flooring None
No No
Needs
Clean Minor Dust
Corrective Action Required
Cleaning
/ Debris
No Yes Yes Remove and replace ceiling tile
Ceiling
Yes No No
Walls
Flooring Yes No No
HVAC Supply Grills No Yes Yes Clean with Wexcide disinfectant
HVAC Return Grills No Yes Yes Clean with Wexcide disinfectant
Ceiling at Supply Yes No No
Grills
Surfaces in Room Yes No No
Observations
Findings:
- Dust build up, condensation and microbial growth on West unit A/C coils
- Dust build up on A/C supply and return grills
- Live plant (old) in room
- One stained ceiling tile
- False ceiling plenum was clean and dry. Appears that cold air from A/C unit is mixing with warm air from outside and causing
condensation.
- Temperature was low and humidity and CO2 levels were slightly elevated
Recommendations:
Site Based Maintenance:
- Clean A/C supply and return grills
- Remove plant from room
- Remove and replace stained ceiling tile
- Continue to monitor this location for any signs of microbial growth as well as dust and debris accumulation and clean as
appropriate
Physical Plant Operations
- Clean coils on West A/C unit
- Evaluate A/C units for proper operation and repair as appropriate to increase temperature and lower CO2 and humidity level
NOTE: EQ01079 through EQ01083 were generated to address Physical Plant Operations recommendations
3101
IAQ Assessment Location Number
September 12, 2007
Evaluation Requested
Lyons Creek Middle School
September 18, 2007
Evaluation Date
1:35 pm
Time of Day
Outdoor Conditions Temperature 87.2 78.9
Relative Humidity Ambient CO2 463
Temperature
Fish Relative Humidity CO2
Range # Occupants
Range
Range
P-625C 78.3 62.7 1532 30
72 - 78 Max 700 > Ambient
30% - 60%
Visible water Visible microbial Amount of material
No
Noticeable Odor
damage / staining? growth? affected
2 x 4 Lay In None
Ceiling Type No
No
Gypsum Board
Wall Type East wall
No
Yes
Tile
Flooring None
No No
Needs
Clean Minor Dust
Corrective Action Required
Cleaning
/ Debris
Yes No No
Ceiling
Yes No No
Walls
Flooring Yes No No
HVAC Supply Grills Yes No No
HVAC Return Grills Yes No No
Ceiling at Supply Yes No No
Grills
Surfaces in Room Yes No No
Observations
Findings:
- Only one A/C unit was operating at the time of the assessment
- Elevated moisture content in East wall under A/C unit. Wall is bulging
- A/C filters and coils were clean on both units
- Humidity and CO2 level was slightly elevated
Recommendations:
Site Based Maintenance:
- Continue to monitor this location for any signs of microbial growth as well as dust and debris accumulation and clean as
appropriate
Physical Plant Operations
- Evaluate cause of elevated moisture in East wall under A/C unit and repair as appropriate. Repair/replace wall material as
appropriate.
- Evaluate both A/C units for proper operation and repair as appropriate to lower humidity and CO2 level
NOTE: EQ01079 through EQ01083 were generated to address Physical Plant Operations recommendations
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