february 21, 2014 - community college of rhode island...february 21, 2014 mr. david a. snow...

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www.triumvirate.com February 21, 2014 Mr. David A. Snow Associate Director Physical Plant Community College of Rhode Island – Liston Campus One Hilton Street Providence, Rhode Island 029052304 Re: Mold Assessment Community College of Rhode Island – Liston Campus One Hilton Street, Providence, Rhode Island Dear Mr. Snow: At the request of the Community College of Rhode Island (CCRI), Triumvirate Environmental, Inc. (TEI) performed mold assessment activities at the noted location (the Site) on February 7, 2014. Inspection and air sampling was conducted in select locations within the building. An area outside of the building was sampled for mold and used as a control or "background” concentration. The CCRI Liston Campus is a brick structure with drywall construction with carpet and tile floors. The structure is a twostory institutional building that contains over twenty classrooms, workshop areas, a central atrium and an auditorium. Mr. David Snow, the Associate Director of Physical Plant, was interviewed. Mr. Snow indicated that CCRI Liston Campus employees complained of moldy conditions within classrooms 2248 and 2249. On February 7, 2014, an inspection of classrooms 2248 and 2249 was conducted and indoor air samples were collected. An evaluation for the presence of or likely presence of significant mold was completed. The classrooms were inspected for evidence of water, dampness, mold growth and mold damaged materials. Curling wallpaper was observed on the west wall in classroom 2248, in the vicinity of a window. The window overlooks an enclosed indoor hallway. No evidence of mold growth or odor was observed in the areas that were inspected as part of this evaluation. Representative air samples were collected from the following areas: Room 2248 center of room Room 2249 on teacher’s desk Background – southeast side of the Liston Campus / outside of doorway B The locations of assessment work are shown on the enclosed photographs. Each sample was submitted for nonviable mold spore count analysis.

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Page 1: February 21, 2014 - Community College of Rhode Island...February 21, 2014 Mr. David A. Snow Associate Director Physical Plant Community College of Rhode Island – Liston Campus One

www.triumvirate.com

    February 21, 2014   Mr. David A. Snow Associate Director Physical Plant Community College of Rhode Island – Liston Campus One Hilton Street Providence, Rhode Island 02905‐2304  

Re:  Mold Assessment  Community College of Rhode Island – Liston Campus One Hilton Street, Providence, Rhode Island 

 Dear Mr. Snow:  At the request of the Community College of Rhode  Island  (CCRI), Triumvirate Environmental,  Inc.  (TEI) performed mold assessment activities at the noted  location (the Site) on February 7, 2014.   Inspection and air sampling was conducted in select locations within the building.  An area outside of the building was sampled for mold and used as a control or "background” concentration.    The CCRI Liston Campus  is a brick structure with drywall construction with carpet and tile  floors.   The structure  is a two‐story  institutional building that contains over twenty classrooms, workshop areas, a central atrium and an auditorium.    Mr. David Snow, the Associate Director of Physical Plant, was interviewed.  Mr. Snow indicated that CCRI Liston Campus employees complained of moldy conditions within classrooms 2248 and 2249.    On February 7, 2014, an inspection of classrooms 2248 and 2249 was conducted and indoor air samples were collected.  An evaluation for the presence of or likely presence of significant mold was completed.  The  classrooms were  inspected  for  evidence  of water,  dampness, mold  growth  and mold  damaged materials.    Curling wallpaper was  observed  on  the west wall  in  classroom  2248,  in  the  vicinity  of  a window.  The window overlooks an enclosed indoor hallway.  No evidence of mold growth or odor was observed  in the areas that were  inspected as part of this evaluation.   Representative air samples were collected from the following areas:  

Room 2248 ‐ center of room 

Room 2249 ‐ on teacher’s desk 

Background – southeast side of the Liston Campus / outside of doorway B   The locations of assessment work are shown on the enclosed photographs.  Each sample was submitted for non‐viable mold spore count analysis.  

Page 2: February 21, 2014 - Community College of Rhode Island...February 21, 2014 Mr. David A. Snow Associate Director Physical Plant Community College of Rhode Island – Liston Campus One

Mold Assessment Community College of Rhode Island ‐ Liston Campus Page 2 of 3  

Air samples were collected using a calibrated sample pump and Air‐O‐Cell sample cassettes.  The sample pump was calibrated to sample a total of 200 liters of air through the cassette.  The start and end times of each sample were recorded, and the analytical results were calculated for the actual collection time.  All mold samples were analyzed at Convino Environmental Associates, Inc. of Woburn, Massachusetts by direct microscopic examination for total fungal structures (i.e. mold spores and hyphae).  A copy of the analytical report  is enclosed.   The results are summarized on the table below and expressed  in spores per cubic meter (s/m3).  

Mold Analytical Results Table       As  indicated  in  the  Mold  Analytical  Results  Table,  the  background  concentration  of  total  fungal structures was 15 s/m3, while  the  indoor concentrations were non‐detect.   Based on a comparison of indoor mold  counts  to  the  outdoor mold  count  concentration  it  is  unlikely  that  uncontrolled mold growth is occurring in the areas evaluated within the Liston Campus.  Typically, under normal operating conditions,  the  background  (outdoor)  concentration  of  total  fungal  structures  is  higher  than  the concentration measured within the building, as shown by the results.  Currently,  there  is  no  state  or  federal  regulations  for mold  concentration  evaluation.    The  industry accepted practice  is  to evaluate mold  counts  from a  site  specific background  sample and  to evaluate relative  concentrations.   The background  concentration  represents anticipated potential  loading  from exterior  areas  and  concentrations  without  conditions  supporting  mold  growth.    Additionally,  mold counts above 1,000 are generally elevated and would warrant additional evaluation.  It  is  the  opinion  of  TEI  that  the  inspection  and  sampling  results  indicate  mold  counts  are  within acceptable ranges.   No evidence of unusual odors, mold associated staining, water  infiltration or mold growth was observed.  This report  is based on the conditions existing at the Site on the dates of site visits, field  investigation activities, and presented testing results.  Investigations conducted were non‐destructive and were based upon  readily observable  conditions.    Past  conditions  are  considered on  the basis of  readily  available records,  interviews, and recollections.   Site conditions are subject to variations and changes over time.  The  concentration  of  total  fungal  structures  varies  both  seasonally  and  regionally,  therefore  direct comparison between the data presented in this document and other data is not recommended.  Certain individuals  in  populations may  have  sensitivity  to  particular  and  unique  contaminants  that may  be present and not detected by the screening analysis performed.          

  Room 2248  Room 2249  Background 

Basidiospores  0  0  15 

Total   0 s/m3  0 s/m3  15 s/m3 

Page 3: February 21, 2014 - Community College of Rhode Island...February 21, 2014 Mr. David A. Snow Associate Director Physical Plant Community College of Rhode Island – Liston Campus One

Mold Assessment Community College of Rhode Island ‐ Liston Campus Page 3 of 3  

If you have any questions or comments please contact the undersigned.  Thank you.   Sincerely, TRIUMVIRATE ENVIRONMENTAL, INC.    Craig Sasse, LSP       Sarah Rocklin Technical Manager  Environmental Engineer  Enclosures (3) 

Photographs Site Map Mold Analytical Report  

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CCRI Liston Campus One Hilton Street Providence, Rhode Island
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Site Photographs
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Background sample collected on the southeast side of the Liston Campus.
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Curling wallpaper was observed on the west wall in classroom 2248.
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Collection of the air sample from Room 2248.
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Collection of the air sample from Room 2248.
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CCRI Liston Campus One Hilton Street Providence, Rhode Island
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Collection of the air sample from Room 2249.
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Collection of the Background air sample.
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Collection of the air sample from Room 2248.
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Site Photographs
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  N

 

 Site Map  

Second Floor Community College of Rhode Island 

Liston Campus One Hilton Street 

Providence, Rhode Island 02905‐2304  

         

TRIUMVIRATE ENVIRONMENTAL, INC. 200 Inner Belt Road 

Somerville, MA  02143 (800) 966‐9282, Fax: (617) 628‐8099 

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Room 2248
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Room 2249
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Background
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