February 21, Mold Assessment. 400 East Avenue, Warwick, Rhode Island. Dear Mr. McCabe:

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Beatrix Henderson
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1 February 21, 2014 Mr. Ken McCabe Lincoln Campus Physical Plant Director Community College of Rhode Island Knight Campus 400 East Avenue Warwick, Rhode Island Re: Mold Assessment Community College of Rhode Island Knight Campus 400 East Avenue, Warwick, Rhode Island Dear Mr. McCabe: 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, Inspection, air sampling and tape lift 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 Knight Campus is a masonry structure with drywall construction with carpet and tile floors. The structure is a six story institutional building. The structure is heated and cooled by forced air ducts. Mr. Ken McCabe, Lincoln Campus Physical Plant Director, was interviewed. Mr. McCabe indicated that CCRI employees had complained about moldy conditions within the areas of rooms 4200, 3100 and Subsequently, inspection, air sampling and tape lift sampling were conducted. On February 7, 2014, an inspection was conducted and representative air samples were collected from the following areas: Room 4212 center of classroom Room 4216 Academic Affairs Conference Room Room 4214 common area Room 4200 Center for Workforce and Community Education Room 3100 Pam Forleo s Desk (Social Services Department) Room 3076 Conference Room Room 3100 Human Services Room 2074 Stephen A. Vieira s Desk Room 2075 Bruce Barrett s Desk Room 2077 Jim Kirby s Desk Background outside

2 Mold Assessment Community College of Rhode Island Knight Campus Warwick, Rhode Island Page 2 of 3 In addition, tape lift samples were collected from the following areas: Room 4212 classroom vent Room 2073 Web Services vent Room 4216 Academic Affairs Conference Room vent An evaluation for the presence of or likely presence of significant mold was completed. The selected rooms were inspected for evidence of water, dampness, mold growth and mold damaged materials. Discoloration was observed on the heating ventilation and air conditions (HVAC) vents in rooms 4212 and The locations of assessment work are shown on the enclosed photographs. 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. An area outside of the building was sampled for mold and used as a control or background concentration. The results are summarized on the enclosed table and expressed in spores per cubic meter (s/m 3 ). Tape lift sampling is used for direct examination. Tape lift results can determine the presence of fungal spores as well as what types of fungi are present. Tape lift samples were collected using a three inch long strip of one inch wide transparent sticky tape. The tape strip is pressed firmly onto the surface being tested. The tape is removed from the surface, placed on a laboratory provided glass microscope slide and sealed in a protective case. The tape lift results are summarized on the enclosed table. 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). Copies of the analytical reports are enclosed. As indicated in the summary table, the background concentration of total fungal structures was 15 s/m 3, while the indoor concentrations ranged from non detect to 30 s/m 3. Total fungal structure counts were detected in Room 4216 (Academic Affairs Conference Room), Pam Forleo s Desk (Room 3100 Social Services Department) and Room 2074 (Stephen A. Vieira s desk). Only Room 4216 was noted with counts above background. Room 4216, the Academic Affairs Conference Room, contains no windows. A HVAC vent is located in the center of the conference room. Cladosporium were detected at a total fungal spore count of 30 s/m 3. The tape lift sample collected from the HVAC vent detected moderate fungal growth of Cladosporium. In addition, a tape lift sample was collected from a vent in the adjacent classroom identified as Room Moderate fungal growth of the Cladosporium species was detected. Multiple houseplants were observed in the vicinity of Pam Forleo s desk, which may contribute to overall mold spore loading. The wet dirt and soil serves as a reservoir for mold and moisture. A total fungal spore count of 15 s/m 3 was detected. Room 2074, Stephen A. Vieira s desk, contains a large floor to ceiling window. The temperature in the room was approximately 64 degrees Fahrenheit. The HVAC system was not in operation during the

3 Mold Assessment Community College of Rhode Island Knight Campus Warwick, Rhode Island Page 3 of 3 sampling event. A total fungal spore count of 10 s/m 3 was detected. A tape lift sample collected from a vent in the common area identified as Room 2073, did not detect any fungal growth. 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. TEI recommends conducting a thorough custodial cleaning of all surfaces with a disinfectant. The surfaces adjacent to the HVAC diffuser and diffuser should be cleaned. The HVAC operation and maintenance should be checked and replacement of filter or adjustment of relative humidity conducted. Household plants should be removed from areas where people are sensitive. 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. If you have any questions or comments please contact the undersigned. Thank you. Sincerely, TRIUMVIRATE ENVIRONMENTAL, INC. Craig Sasse, LSP Technical Manager Sarah Rocklin Environmental Engineer Enclosures (7) Mold Analytical Results Table Photographs Site Map Second Floor Site Map Third Floor Site Map Fourth Floor Mold Analytical Report Air Samples Mold Analytical Report Tape Lift

4 Mold Analytical Results Table Community College of Rhode Island Knight Campus 400 East Avenue Warwick, Rhode Island Room 4212 Room 4216 Room 4214 Room 4200 Pam Forleo s Desk Room 3076 Room 3100 Room 2074 Room 2075 Room 2077 Background basidiospores Cladosporium Epicoccum Smuts/Myxomycetes Total 0 s/m 3 30 s/m 3 0 s/m 3 0 s/m 3 15 s/m 3 0 s/m 3 0 s/m 3 10 s/m 3 0 s/m 3 0 s/m 3 15 s/m 3 Tape Lift Sample Analytical Results Fungal Growth Growth Rating General Growth Assessment Debris Loading Room Vent Cladosporium 2+ Moderate fungal growth Low debris Room Vent None 0 No fungal growth Low debris Room Vent Cladosporium 3+ Moderate fungal growth Low debris

8 Site Map Second Floor Community College of Rhode Island Knight Campus 400 East Avenue Warwick, Rhode Island N TRIUMVIRATE ENVIRONMENTAL, INC. 200 Inner Belt Road Somerville, MA (800) , Fax: (617)

9 Site Map Third Floor Community College of Rhode Island Knight Campus 400 East Avenue Warwick, Rhode Island N TRIUMVIRATE ENVIRONMENTAL, INC. 200 Inner Belt Road Somerville, MA (800) , Fax: (617)

10 Site Map Fourth Floor Community College of Rhode Island Knight Campus 400 East Avenue Warwick, Rhode Island N TRIUMVIRATE ENVIRONMENTAL, INC. 200 Inner Belt Road Somerville, MA (800) , Fax: (617)