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January 30, 2019 Ms. Maria Dorr Amagansett Union Free School District Administration Building 320 Main Street Amagansett, New York 11930 Re: Limited Indoor Air Quality Sampling Amagansett Elementary School 320 Main Street Amagansett, New York 11930

Sampling Date: January 23, 2019 JCB#: 19-42378 Dear Ms. Door: J.C. Broderick & Associates, Inc. (JCB) was retained to perform limited indoor air quality sampling in the above referenced subject spaces. The sampling consisted of the following: • Temperature (°F) and Relative Humidity (%RH) Sampling • Total Airborne Particulate Sampling • Carbon Monoxide (CO) Sampling • Volatile Organic Compounds (VOC) Sampling Results of the sampling were compared to applicable standards to identify if any of these parameters exist at hazardous levels. In the absence of a governmental exposure value, an applicable industry standard was referenced. Results which fell outside of these standards/guidelines could indicate conditions which may cause occupant discomfort or be an indicator of other indoor air quality concerns. The following sections summarize the results of the inspection and sampling performed. Results and laboratory reports, if applicable, are provided as attachments to this report. Relative Humidity and Temperature Sampling Results Sampling of relative humidity (RH) and temperature was performed primarily for assessing the potential for indoor mold growth. Higher RH and/or temperature may lead to elevated levels of microbial growth and contaminants. Sampling of RH is also performed since a low RH may lead to increased airborne particulate concentrations and/or occupant discomfort. The sampling was performed utilizing a portable real-time air quality monitor. Temperature was reported in degrees Fahrenheit (̊F) and humidity was reported in %RH. Detailed information pertaining to this equipment is available upon request.

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No regulatory limit currently exists for RH for indoor environments. However, the Environmental Protection Agency (EPA) in their document “IAQ Design Tools For Schools” states that indoor RH be maintained below 60% and ideally between 30 and 50%. Acceptable temperature ranges for indoor environments are described by ASHRAE as being between 68 ̊F to 79 ̊F. Temperatures above this range may cause occupants to become lethargic and increase the initial out-gassing of VOCs from materials. There are different guidelines for temperature in the winter and summer, which are a result of the different dressing habits of the occupants throughout the year. In the winter months, occupants typically wear heavier clothing, and therefore are less comfortable with higher indoor temperatures. In the summer, occupants typically dress with lighter clothing and are less comfortable with lower temperatures. The results of the sampling performed revealed the following:

The RH levels were observed as being slightly below the recommended range within each of the sampled spaces. These levels were similar to RH recorded outside the school building.

Temperatures were observed as being within the recommended range within each of the sampled spaces.

Airborne Particulate Sampling Results Total airborne particulate sampling was performed as elevated concentrations of airborne particulates may be an indication of poor ventilation efficiency, inadequate housekeeping practices, or periods of low relative humidity. Total particulate sampling was performed utilizing a portable real-time air particle counter. The Particle Counter is a technologically advanced instrument designed to measure the concentration of airborne particulate matter providing direct and continuous readout as well as electronic recording of the information. The sampling results were compared with the OSHA permissible exposure limit (PEL), the ACGIH guidance values, and through a comparison between concentrations observed within the test spaces and those from control or background locations. The results of the sampling performed revealed the following:

All concentrations were well below the OSHA PEL of 15 mg/m3 and the ACGIH exposure value of 3 mg/m3 for each of the sampled spaces.

Carbon Monoxide (CO) Sampling Results Sampling of Carbon Monoxide (CAS# 630-08-0) was performed since it is a product of incomplete combustion and is present in combustion exhaust.

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Carbon Monoxide (CO) in its physical state is an odorless, tasteless and colorless gas. It mixes well with air and explosive mixtures are easily formed. The gas penetrates easily through walls and ceilings and is absorbed into the body by inhalation. The sampling was performed utilizing a portable real-time air quality monitor. The results of the sampling were compared to OSHA’s PEL of 50 ppm, ASHRAE Standard 62-2007 Appendix B, and ambient (outdoor) concentrations. This ASHRAE standard denotes a “concentration of interest” for CO at 9 ppm.

No detectable concentrations of Carbon Monoxide were detected within any of the subject spaces. Volatile Organic Compounds (VOC) Sampling Results Multiple sources of volatile organic compounds (VOCs) exist within a building (i.e. cleaning solvents, perfumes/colognes, etc...). As it is not feasible to sample for each chemical compound individually, sampling for total VOCs was performed. VOCs are organic chemicals that have a high vapor pressure and easily form vapors at standard temperature and pressure. VOCs resulting from out-gassing of fabrics, carpets, building materials, etc. may contribute to poor indoor air quality. Several hundred different VOCs have been identified in indoor air by academic and government investigators. Materials most often implicated as contributing to indoor VOC contamination include paints, adhesives, carpeting, vinyl tiles, floor products and insulation. Sampling was performed utilizing a portable real-time air quality monitor. Concentrations of VOCs are reported in parts per million (ppm). Currently, no standards have been established for total VOC concentrations within a non-industrial setting. Therefore, the sampling results were compared with what is typically regarded as an industry standard that the presence of total VOCs greater than 3 ppm may cause undesirable health effects. The results of the sampling performed revealed the following:

No detectable concentrations of total Volatile Organic Compounds were observed within any of the subject spaces.

Findings and Recommendations With the exception of Relative Humidity readings, none of the parameters were observed outside the referenced recommended ranges within the sampled spaces. Lower relative humidity readings are typical for winter months and therefore it is generally recommended to ensure the HVAC systems and thermostatic controls are operating in accordance with manufacturer’s specifications. It is important to note that this inspection and sampling are limited in that it only reports the presence and conditions of the parameters analyzed at the time the inspection and sampling was performed. Although every attempt was made to collect the samples at a time which is most representative of the typical conditions of the subject space, these results cannot guarantee the conditions prior to, and subsequent to, when the samples were collected. These results represent typical indoor air quality parameters and were not

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intended to investigate any specific events or medical conditions. If the occupant’s concerns and/or symptoms persist, further investigation, including more expansive air monitoring and collaboration with the occupant’s physician is recommended. Please contact our office if these services are requested. Attached, please find a copy of the laboratory analytical report and photolog detailing the findings. If there are any questions or if more information is needed, please feel free to contact our office. Sincerely, Matthew Harris Matthew Harris J.C. Broderick & Associates, Inc.

Edward J. McGuire III J.C. Broderick & Associates, Inc.

Grab Sampling Data

J.C. Broderick & Associates, Inc. Environmental Consulting & Testing

1775 Expressway Drive North

Hauppauge, New York 11788

Room (Space ID/Common Name) Particulates VOCs CO Relative Humidity C02 Tempmg/m3 ppm ppm %RH ppm deg F

Ambient Start <0.1 0 0 42 620 45

122 <0.1 0 0 32.7 945 68.7

123 <0.1 0 0 30.6 898 69.7

101 <0.1 0 0 31.6 871 69.7

102 <0.1 0 0 31.6 1037 70.8

103 <0.1 0 0 29.8 975 71

104 <0.1 0 0 29 796 73.5

120 <0.1 0 0 26.3 693 73.2

BBR adj. 104 <0.1 0 0 27.3 709 73.6

119 <0.1 0 0 24.3 949 73.2

106 <0.1 0 0 27.3 839 73.1

112 <0.1 0 0 27.2 985 73.8

112B <0.1 0 0 25.6 830 73.8

GBR adj. 112 <0.1 0 0 27.9 710 75.6

107 <0.1 0 0 27.5 716 75.2

109 <0.1 0 0 26.8 726 75.6

108 <0.1 0 0 24.1 1006 75.2

108A <0.1 0 0 25 948 74.3

108B <0.1 0 0 25.3 867 74.2

Gym <0.1 0 0 27.5 710 74.2

Boys Locker Room <0.1 0 0 27.8 758 74.1

Girls Locker Room <0.1 0 0 27.2 684 74

Stage <0.1 0 0 27.8 1039 74.6

Coach's Office <0.1 0 0 27.6 689 74.4<0.1

215 <0.1 0 0 25.6 968 79.5

216B <0.1 0 0 25.7 924 76.8

216 <0.1 0 0 25.1 865 76.4

201A <0.1 0 0 25.5 1029 76.5

201 <0.1 0 0 25.2 737 76.5

202 <0.1 0 0 23.6 636 75

Building: Amagansett Elementary School Date:  1/23/19 JCB#: 19‐42378

IAQ Grab Sampling

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Room (Space ID/Common Name) Particulates VOCs CO Relative Humidity C02 Tempmg/m3 ppm ppm %RH ppm deg F

214 <0.1 0 0 25.6 704 75.4

203 <0.1 0 0 25.7 865 75.4

BBR adj. 214 <0.1 0 0 24.6 745 74.5

212 <0.1 0 0 23.4 878 72.5

Faculty Womens Restroom adj. 212 <0.1 0 0 27.1 719 72.3

205 <0.1 0 0 25.6 751 72.8

GBR adj. 208 <0.1 0 0 27.2 759 72.8

208 <0.1 0 0 28.6 752 73.9

206 <0.1 0 0 25 761 73.9

207 <0.1 0 0 24.6 859 73.9<0.1

East Storage <0.1 0 0 26.8 657 73.1

Cable Room <0.1 0 0 27.1 692 72.4

Mechanical Room <0.1 0 0 26.3 689 72.5

Office Faculty <0.1 0 0 27.8 764 73.2

Faculty Kitchen <0.1 0 0 27.2 693 73.1

Boiler Room <0.1 0 0 26.9 703 73.8

Boiler Room Storage <0.1 0 0 27.1 692 73.5

Ambient End <0.1 0 0 56.1 605 40

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