Report of Limited Indoor Air Quality Services

Transcription

1 Report of Limited Indoor Air Quality Services Camp Curtin School 2900 North 6th Street Harrisburg, Pennsylvania Prepared For: Harrisburg School District 1601 State Street Harrisburg, Pennsylvania February 2015

2 February 2015 Via Mr. John Gallagher Facilities Director Harrisburg School District 1601 State Street Harrisburg, Pennsylvania Subject: Report of Limited Indoor Air Quality Services Camp Curtin School Harrisburg, Pennsylvania Dear Mr. Gallagher: Aether Assessments, LLC. (AETHER) is pleased to present this report of our limited Indoor Air Quality (IAQ) services at the subject site. Our services were provided at your request based on your acceptance of AETHER Proposal 15009R. The report includes sections describing project information, scope of services, results and findings, and evaluations and conclusions. Also included are drawings indicating approximate sampling locations, indoor air quality data sheets, and a copy of the laboratory analytical results. Thank you again for the opportunity to provide services for your project. Should you have any questions, or if you require additional information, please do not hesitate to contact me at Respectfully, AETHER ASSESSMENTS, LLC. Eric A. Mercer, CIEC Owner-Principal

3 SECTION REPORT OF LIMITED INDOOR AIR QUALITY SERVICES Camp Curtin School Harrisburg, Pennsylvania TABLE OF CONTENTS PAGE SECTION PAGE INTRODUCTION LIMITED VISUAL ASSESSMENT CARBON DIOXIDE TESTING RELATIVE HUMIDITY TESTING TEMPERATURE TESTING CARBON MONOXIDE TESTING FUNGAL SPORE-TRAP TESTING CONCLUSIONS AND RECOMMENDATIONS 9 Appendix A: Appendix B: Appendix C: Project Drawings IAQ On-Site Testing Data Sheets Mold Analytical Sample Results

4 Camp Curtin School Limited IAQ Services February INTRODUCTION Based upon your acceptance of AETHER Proposal 15009R, AETHER conducted limited IAQ testing within the school facility on February 9, AETHER understands that our services were in response to concerns that have been expressed regarding specific IAQ components within the school building. In general, AETHER conducted a limited visual assessment, as well as testing for Carbon Dioxide (CO 2 ), Carbon Monoxide, Temperature ( F), Relative Humidity (%RH), and airborne fungal spore counts in areas using the following sampling location guideline: Representative portions of student accessible corridors and common areas. Those classrooms identified by school personnel as areas with known or perceived issues, and/or those rooms identified by Siemens as locations with potential issues regarding suspect mold growth or inoperable ventilation components that could directly impact IAQ (i.e. Inoperable ou tdoor air intake dampers, visible suspect mold growth on filters). Approximately 20% of the remaining classrooms. For this school, AETHER was not provided with a reason for their selection, but the following rooms were requested by Siemens and/or school personnel to be included in the sampling event: Gymnasium Library Room 106 Room 108 Room 11 Rooms Rooms Limitations This survey was performed using procedures and a level of diligence typically exercised by professional consultants performing similar services. The results of our testing and any conclusions apply only to those areas tested at the time the samples were collected and should not be considered comprehensive enough to represent all areas of the structure. For this reason, care should be taken to recognize individual reports of concerns within specific areas and ensure that they are addressed rather than attempting to extrapolate findings contained herein to determine the validity of the concern. In many instances, teacher and student belongings may have obscured conditions. Interpretation of analytical data is subject to change based on input from licensed medical personnel or individual health conditions, so any conclusions contained herein should not be considered to apply in all cases and may need to be re-evaluated based on individual cases/concerns. AETHER was contracted to solely address the parameters and locations discussed in this report and this report is in no way a guarantee that other hazards are not present.

5 Camp Curtin School Limited IAQ Services February LIMITED VISUAL ASSESSMENT Within each selected sampling area, AETHER conducted a visual assessment. The assessment was limited to documenting visible indications of water damaged materials and/or suspect mold growth on exposed surfaces (ceiling tiles, walls, ventilation components). In addition, AETHER documented readily apparent observations of conditions that could have likely impacted other parameters tested for during our services. The survey did not include comprehensive building or mechanical evaluations to aid in the delineation of conditions which may be located within enclosed spaces such as, ceiling plenums, wall cavities, and internal ventilation components. The following table summarizes pertinent observations made within each sampling location: Location Truncated Notes Room 301 Unoccupied. Surfaces and exposed ventilation components visibly clean Room 302 Occupied. Surfaces and exposed ventilation components visibly clean Room 303 Recently vacant. Surfaces and exposed ventilation components visibly clean Room 304 Recently vacant. Surfaces and exposed ventilation components visibly clean Corridor 5 water stained ceilings tiles in sampling vicinity Room people. Visibly clean. Forced air system. 1 plant in room. Room 311 Recently vacant. Surfaces and exposed ventilation components visibly clean Room people in room. Surfaces and exposed ventilation components visibly clean Room 202 Vacant. Minor dust on surfaces. 2 stained ceiling tiles. Room 203 Occupied. Visibly clean and no stains except peeling paint between windows Room people. Visibly clean and no stains. Teacher turned Package Unit off Corridor Sporadic ceiling tile stains. Room people. Visibly clean. Space heater in use Room people. 4 stained ceiling tiles. Vents covered with belongings Room people. Package Unit not working. 1 small ceiling tile stain. Room 106 Recently vacated. 4 stained ceiling tiles. Visibly clean. Corridor Visibly clean. Room people. Visibly clean. No stained ceiling tiles. Library Minor water stain on 1 wall. Visibly clean. Room people. Visibly clean. Corridor Visibly clean. Gymnasium No apparent water damage seen. Room 122 Forced air system. Visibly clean and no stains seen. Corridor Visibly clean. Please note that these are subjective notes. Visibly clean does not infer a complete absence of dust rather that exposed surfaces in the area appeared free of heavy or atypical accumulations of dust and debris.

6 Camp Curtin School Limited IAQ Services February CARBON DIOXIDE TESTING Within each selected sampling area, AETHER utilized an Extech CO250 direct-read instrument to document CO 2 concentrations at the sampling location. The instrument was pre-calibrated according to the manufacturer s recommendations. AETHER placed the instrument in a representative area within the room at a height approximately that of seated breathing level where it was allowed to stabilize for at least five (5) minutes. The stabilized readings were then recorded and have been summarized in the following graph: Carbon Dioxide Results OUTDOORS AUDITORIUM CORRIDOR 122 GYMNASIUM CORRIDOR 145 LIBRARY 103 CORRIDOR CORRIDOR CORRIDOR LOBBY OUTDOORS Carbon Dioxide (ppm) None of the selected sampling locations exceeded the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) recommendation of no more than 700 ppm greater than the outdoor concentration. This guideline is typically for comfort (perception of good air quality, body odor, etc.), and is not a ceiling value for air quality. It is important to note that although there are typically reports of increased drowsiness and perception of poor air quality in the 1,000 to 2,000 ppm range, CO 2 is not considered a contaminant or pollutant at these levels.

7 Camp Curtin School Limited IAQ Services February RELATIVE HUMIDITY TESTING Within each sampling area, AETHER utilized an Extech CO250 direct-read instrument to document RH levels at the sampling location. The instrument was pre-calibrated according to the manufacturer s recommendations. AETHER placed the instrument in a representative area within the room at a height approximately that of seated breathing level where it was allowed to stabilize for at least five (5) minutes. The stabilized readings were then recorded and have been summarized in the following graph: Relative Humidity Results OUTDOORS AUDITORIUM CORRIDOR 122 GYMNASIUM CORRIDOR 145 LIBRARY 103 CORRIDOR CORRIDOR CORRIDOR LOBBY OUTDOORS Relative Humidity (%) The selected sampling locations typically fell within a range of 20-30% relative humidity. While there are no mandated lower limits for relative humidity, there is an optimum range and it is widely reported that indoor relative humidity levels below 30% can increase occupant discomfort, eye irritation, stuffy noses, aggravate allergies and potentially increase the survival and transmission of some viruses. However, in buildings where mechanical systems are not designed with humidity controls, it may not be practical to increase relative humidity so that it falls within the ideal range.

8 Camp Curtin School Limited IAQ Services February TEMPERATURE TESTING Within each sampling area, AETHER utilized an Extech CO250 direct-read instrument to document air temperature at the sampling location. The instrument was pre-calibrated according to the manufacturer s recommendations. AETHER placed the instrument in a representative area within the room at a height approximately that of seated breathing level where it was allowed to stabilize for at least five (5) minutes. The stabilized readings were then recorded and have been summarized in the following graph: Temperature (F) OUTDOORS AUDITORIUM CORRIDOR 122 GYMNASIUM CORRIDOR 145 LIBRARY 103 CORRIDOR CORRIDOR CORRIDOR LOBBY OUTDOORS Temperature (F) Most of the selected sampling areas were within the ASHRAE recommended temperature range of F for winter. It is important to note that the ideal temperature range is based on occupant comfort for a majority of people and may not be suitable for everyone. However, in addition to increased occupant discomfort, higher temperatures in winter are associated with higher energy costs.

9 Camp Curtin School Limited IAQ Services February CARBON MONOXIDE TESTING Within each sampling area, AETHER utilized an Extech CO10 direct-read instrument to document CO levels at the sampling location. The instrument was pre-calibrated according to the manufacturer s recommendations. AETHER placed the instrument in a representative area within the room at a height approximately that of seated breathing level where it was allowed to stabilize for at least five (5) minutes. The stabilized readings were then recorded. No detectable concentrations of carbon monoxide were detected indoors during our testing services. For reference, 0-1 PPM CO is typically considered a normal background level for indoor air with 9 PPM being a maximum level for acceptable IAQ. Higher concentrations are permitted in regards to health standards.

10 Camp Curtin School Limited IAQ Services February FUNGAL SPORE-TRAP TESTING AETHER collected air samples from selected areas using Allergenco-D spore trap cassettes. Samples were collected using a sampling pump calibrated to a flow rate of 15 liters per minute for five (5) minutes in accordance with the manufacturer s recommendations. Following collection, the samples were shipped under chain of custody to EMSL Analytical in Cinnaminson, New Jersey and analyzed for total fungal spore count and genus identification. EMSL is accredited by the American Industrial Hygiene Association (AIHA) Environmental Microbiological Laboratory Accreditation Program (EMLAP). Total fungal counts have been summarized in the following graph: Total Fungal Count (count/m3) OUTDOORS AUDITORIUM 1st E. CORRIDOR 122 GYMNASIUM 1st W. CORRIDOR 145 LIBRARY 103 1st S. CORRIDOR nd CORRIDOR rd CORRIDOR Total Fungal Count (count/m3) Generally, it is desirable to have the inside concentrations of bioaerosols to be less than those found outside and with the same proportion of genera as outside. However, variations to this are often expected as the indoor air does not directly correlate with fluctuations in outdoor mold counts. In addition, during colder months with snow cover, outdoor fungal counts are often suppressed so outdoor samples may not be relevant. Therefore, samples from complainant areas are compared against baseline areas, or comparisons are made by looking at the results from multiple sampling locations. Inside concentrations that are

11 Camp Curtin School Limited IAQ Services February 2015 significantly higher or consist of different genera than those found elsewhere may indicate amplification or reservoirs within that area. AETHER would consider results from 25 of the 26 samples consistent with a normal indoor fungal ecology. Sample CC-5 collected from the 3 rd Floor Corridor had a total fungal count of 790 counts per cubic meter consisting primarily of Aspergillus/Penicillium. Although the result is not alarming nor is it uncommon for normal indoor fungal counts to be greater than this result, it is notable in that it differs enough from the other samples to suggest it could have been influenced by some source. As indicated in the visual assessment, there were five (5) stained ceiling tiles in the sampling vicinity.

12 Camp Curtin School Limited IAQ Services February CONCLUSIONS AND RECOMMENDATIONS Our services did not indicate areas of significant concern within the school; however, deficiencies were noted that could promote poor indoor air quality or the perception of poor indoor air quality. AETHER provides the following conclusions and recommendations for the subject site: Carbon Dioxide The sampled locations fell within the recommended range. Room 204 measured higher than the other locations; however, the teacher had manually turned off her package air handling unit. The reason behind this should be evaluated so that repairs can be made if needed and the unit placed back in operation. Relative Humidity As mentioned, relative humidity within the sampled locations typically fell below 30%. Your mechanical contractor should be consulted to determine if the ventilation systems have installed humidity control capabilities. Unfortunately, it may be that relative humidity is a variable that is not practical to control. However, you should be aware that this issue could contribute to many of the reported concerns regarding perceived poor indoor air quality since low humidity can increase occupant discomfort, cause eye irritation and stuffy noses, aggravate allergies and potentially increase the survival and transmission of some viruses. AETHER has found that during colder months many perceptions of poor air quality and complaints of suspect mold growth causing respiratory issues are actually the result of low relative humidity. Being aware of this condition oftentimes helps alleviate concerns that occupants have regarding air quality. Temperature Two of the sampled areas exceeded the upper recommended limit for temperature. Although this primarily impacts occupant comfort, it also impacts operating costs. Maintaining temperatures at a lower level, still acceptable for the occupants, can result in energy savings as well as a more comfortable environment. Carbon Monoxide Detectable concentrations of Carbon Monoxide were not measured in the sampling locations. Mold Visible suspect mold growth was not observed on exposed surfaces in the assessed areas. However, as previously mentioned, sampling results from the 3 rd Floor Corridor indicated a potential minor impact from a mold source. Since the sample was collected in the vicinity of five (5) ceiling tiles with visible water damage, AETHER recommends they be replaced. Based on the limited quantity of impacted materials and the fungal results, AETHER feels this can be accomplished by in-house maintenance personnel during non-school hours if school policy permits it. Visual Summary In general, exposed surfaces within the school were visibly clean. However, the following general observations were made in multiple locations: o Stained ceiling tiles were seen in multiple locations. AETHER recommends that sources of water intrusion be corrected, visually assess for mold and water damaged materials in the plenum and any stained or water impacted ceiling tiles be replaced promptly. It is important to note that the results are considered snap-shots in time and conditions can change from one area to another or over time. Care should be taken to recognize individual reports of concerns within specific areas and ensure that they are addressed

13 Camp Curtin School Limited IAQ Services February 2015 rather than attempting to extrapolate findings contained herein to determine the validity of the concern. Although these results should not be used to negate a concern within a specific area, it may be prudent to assume some of the observed deficiencies occur beyond the tested areas and they should be evaluated and corrected, if applicable.

14 Camp Curtin School Limited IAQ Services February 2015 APPENDIX A PROJECT DRAWINGS

15 Figure 1: Approximate Sampling Locations First Floor February 2015 Library CC19 Rm 145 CC20 Rm 103 CC18 Rm 106 CC16 Rm 108 CC15 Rm 122 CC23 Auditorium CC25 CC24 Gym CC22 Room location is listed first followed by the mold sample Number, (CC##), which also corresponds with other tests. Drawing provided by Siemens. Not to scale Limited IAQ Services Camp Curtin School Harrisburg, Pennsylvania

16 Figure 2: Approximate Sampling Locations Second Floor February 2015 Rm 201 CC08 Rm 202 CC09 Rm 203 CC10 Rm 204 CC11 Rm 212 CC14 Rm 217 CC13 Room location is listed first followed by the mold sample Number, (CC##), which also corresponds with other tests. Drawing provided by Siemens. Not to scale Limited IAQ Services Camp Curtin School Harrisburg, Pennsylvania

17 Figure 3: Approximate Sampling Locations Third Floor February 2015 Rm 301 CC01 Rm 303 CC03 Rm 302 CC02 Rm 304 CC04 Rm 311 CC07 Rm 310 CC14 Room location is listed first followed by the mold sample Number, (CC##), which also corresponds with other tests. Drawing provided by Siemens. Not to scale Limited IAQ Services Camp Curtin School Harrisburg, Pennsylvania

18 Camp Curtin School Limited IAQ Services February 2015 APPENDIX B IAQ On-Site Testing Data Sheets

19 Time Floor Location PROJECT: HARRISBURG SCHOOL DISTRICT IAQ BUILDING: CAMP CURTIN DATE: 2/9/15 Mold Sample # PAGE 1 of 2 PROJECT NUMBER: P15005 PERSONNEL: MERCER Parameter CO2 RH (%) Temp (F) CO 8:13 OUTDOORS :15 LOBBY : : : : :55 3 CORRIDOR : : : : : : :53 2 CORRIDOR : : : : :40 1 CORRIDOR : :55 1 LIBRARY

20 Time Floor Location PROJECT:HARRISBURG SCHOOL DISTRICT IAQ BUILDING:CAMP CURTIN DATE: 2/9/15 Mold Sample # PROJECT NUMBER: P15005 PERSONNEL:MERCER PAGE 2 of 2 Parameter CO2 RH Temp (F) CO 11: :15 1 CORRIDOR :21 1 GYMNASIUM : :38 1 CORRIDOR :45 1 AUDITORIUM :58 1 OUTSIDE

21 Camp Curtin School Limited IAQ Services February 2015 APPENDIX C FUNGAL SPORETRAP ANALYTICAL RESULTS

22 EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ Phone/Fax: (800) / (856) / cinnmicrolab@emsl.com Order ID: Customer ID: Customer PO: Project ID: AETH Attn: Proj: Eric Mercer Aether Assessments, LLC 318 Indian Creek Drive Mechanicsburg, PA Camp Curtin ES Phone: (717) Fax: Collected: 02/09/2015 Received: 02/10/2015 Analyzed: 02/10/2015 Test Report: Allergenco-D( ) Analysis of Fungal Spores & Particulates by Optical Microscopy (Methods EMSL 05-TP-003, ASTM D7391) Lab Sample Number: Client Sample ID: Volume (L): Sample Location: CC-1 Rm CC-2 Rm CC-3 Rm 303 Spore Types Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Alternaria Ascospores Aspergillus/Penicillium Basidiospores Bipolaris Chaetomium Cladosporium Curvularia Epicoccum Fusarium Ganoderma Myxomycetes++ 2* 30* 25 1* 10* Pithomyces 1* 10* Rust Scopulariopsis Stachybotrys Torula Ulocladium Unidentifiable Spores * 10* Zygomycetes Peronospora Total Fungi None Detected - Hyphal Fragment Insect Fragment Pollen Analyt. Sensitivity 600x Analyt. Sensitivity 300x - 13* * * - Skin Fragments (1-4) Fibrous Particulate (1-4) Background (1-5) Bipolaris++ = Bipolaris/Drechslera/Exserohilum Myxomycetes++ = Myxomycetes/Periconia/Smut No discernable field blank was submitted with this group of samples. Farbod Nekouei, M.S., Laboratory Manager or Other Approved Signatory High levels of background particulate can obscure spores and other particulates leading to underestimation. Background levels of 5 indicate an overloading of background particulates, prohibiting accurate detection and quantification. Present = Spores detected on overloaded samples. Results are not blank corrected unless othewise noted. The detection limit is equal to one fungal spore, structure, pollen, fiber particle or insect fragment. "*" Denotes particles found at 300X. *-* denotes not detected. EMSL maintains liability limited to cost of anaysis. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc. Cinnaminson, NJ AIHA-LAP, LLC--EMLAP Lab Initial report from: 02/11/ :40:43 For Information on the fungi listed in this report please visit the Resources section at Test Report SPVER Printed: 2/11/ :40:43AM Page 1 of 9

23 EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ Phone/Fax: (800) / (856) / cinnmicrolab@emsl.com Order ID: Customer ID: Customer PO: Project ID: AETH Attn: Proj: Eric Mercer Aether Assessments, LLC 318 Indian Creek Drive Mechanicsburg, PA Camp Curtin ES Phone: (717) Fax: Collected: 02/09/2015 Received: 02/10/2015 Analyzed: 02/10/2015 Test Report: Allergenco-D( ) Analysis of Fungal Spores & Particulates by Optical Microscopy (Methods EMSL 05-TP-003, ASTM D7391) Lab Sample Number: Client Sample ID: Volume (L): Sample Location: CC-4 Rm CC Corridor CC-6 Rm 310 Spore Types Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Alternaria Ascospores Aspergillus/Penicillium Basidiospores Bipolaris Chaetomium Cladosporium Curvularia Epicoccum Fusarium Ganoderma Myxomycetes Pithomyces Rust Scopulariopsis Stachybotrys Torula Ulocladium Unidentifiable Spores Zygomycetes Peronospora Total Fungi Hyphal Fragment Insect Fragment Pollen Analyt. Sensitivity 600x Analyt. Sensitivity 300x - 13* * * - Skin Fragments (1-4) Fibrous Particulate (1-4) Background (1-5) Bipolaris++ = Bipolaris/Drechslera/Exserohilum Myxomycetes++ = Myxomycetes/Periconia/Smut No discernable field blank was submitted with this group of samples. Farbod Nekouei, M.S., Laboratory Manager or Other Approved Signatory High levels of background particulate can obscure spores and other particulates leading to underestimation. Background levels of 5 indicate an overloading of background particulates, prohibiting accurate detection and quantification. Present = Spores detected on overloaded samples. Results are not blank corrected unless othewise noted. The detection limit is equal to one fungal spore, structure, pollen, fiber particle or insect fragment. "*" Denotes particles found at 300X. *-* denotes not detected. EMSL maintains liability limited to cost of anaysis. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc. Cinnaminson, NJ AIHA-LAP, LLC--EMLAP Lab Initial report from: 02/11/ :40:43 For Information on the fungi listed in this report please visit the Resources section at Test Report SPVER Printed: 2/11/ :40:43AM Page 2 of 9

24 EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ Phone/Fax: (800) / (856) / cinnmicrolab@emsl.com Order ID: Customer ID: Customer PO: Project ID: AETH Attn: Proj: Eric Mercer Aether Assessments, LLC 318 Indian Creek Drive Mechanicsburg, PA Camp Curtin ES Phone: (717) Fax: Collected: 02/09/2015 Received: 02/10/2015 Analyzed: 02/10/2015 Test Report: Allergenco-D( ) Analysis of Fungal Spores & Particulates by Optical Microscopy (Methods EMSL 05-TP-003, ASTM D7391) Lab Sample Number: Client Sample ID: Volume (L): Sample Location: CC-7 Rm CC-8 Rm CC-9 Rm 202 Spore Types Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Alternaria Ascospores Aspergillus/Penicillium Basidiospores Bipolaris Chaetomium Cladosporium Curvularia Epicoccum Fusarium Ganoderma Myxomycetes Pithomyces Rust Scopulariopsis Stachybotrys Torula Ulocladium Unidentifiable Spores Zygomycetes Peronospora Total Fungi - None Detected - - None Detected Hyphal Fragment Insect Fragment Pollen Analyt. Sensitivity 600x Analyt. Sensitivity 300x - 13* * * - Skin Fragments (1-4) Fibrous Particulate (1-4) Background (1-5) Bipolaris++ = Bipolaris/Drechslera/Exserohilum Myxomycetes++ = Myxomycetes/Periconia/Smut No discernable field blank was submitted with this group of samples. Farbod Nekouei, M.S., Laboratory Manager or Other Approved Signatory High levels of background particulate can obscure spores and other particulates leading to underestimation. Background levels of 5 indicate an overloading of background particulates, prohibiting accurate detection and quantification. Present = Spores detected on overloaded samples. Results are not blank corrected unless othewise noted. The detection limit is equal to one fungal spore, structure, pollen, fiber particle or insect fragment. "*" Denotes particles found at 300X. *-* denotes not detected. EMSL maintains liability limited to cost of anaysis. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc. Cinnaminson, NJ AIHA-LAP, LLC--EMLAP Lab Initial report from: 02/11/ :40:43 For Information on the fungi listed in this report please visit the Resources section at Test Report SPVER Printed: 2/11/ :40:43AM Page 3 of 9

25 EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ Phone/Fax: (800) / (856) / cinnmicrolab@emsl.com Order ID: Customer ID: Customer PO: Project ID: AETH Attn: Proj: Eric Mercer Aether Assessments, LLC 318 Indian Creek Drive Mechanicsburg, PA Camp Curtin ES Phone: (717) Fax: Collected: 02/09/2015 Received: 02/10/2015 Analyzed: 02/10/2015 Test Report: Allergenco-D( ) Analysis of Fungal Spores & Particulates by Optical Microscopy (Methods EMSL 05-TP-003, ASTM D7391) Lab Sample Number: Client Sample ID: Volume (L): Sample Location: CC-10 Rm CC-11 Rm CC Corridor Spore Types Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Alternaria Ascospores Aspergillus/Penicillium Basidiospores Bipolaris Chaetomium Cladosporium Curvularia Epicoccum Fusarium Ganoderma Myxomycetes * 10* 100 Pithomyces Rust Scopulariopsis Stachybotrys Torula Ulocladium Unidentifiable Spores Zygomycetes Peronospora Total Fungi - None Detected Hyphal Fragment Insect Fragment Pollen Analyt. Sensitivity 600x Analyt. Sensitivity 300x - 13* * * - Skin Fragments (1-4) Fibrous Particulate (1-4) Background (1-5) Bipolaris++ = Bipolaris/Drechslera/Exserohilum Myxomycetes++ = Myxomycetes/Periconia/Smut No discernable field blank was submitted with this group of samples. Farbod Nekouei, M.S., Laboratory Manager or Other Approved Signatory High levels of background particulate can obscure spores and other particulates leading to underestimation. Background levels of 5 indicate an overloading of background particulates, prohibiting accurate detection and quantification. Present = Spores detected on overloaded samples. Results are not blank corrected unless othewise noted. The detection limit is equal to one fungal spore, structure, pollen, fiber particle or insect fragment. "*" Denotes particles found at 300X. *-* denotes not detected. EMSL maintains liability limited to cost of anaysis. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc. Cinnaminson, NJ AIHA-LAP, LLC--EMLAP Lab Initial report from: 02/11/ :40:43 For Information on the fungi listed in this report please visit the Resources section at Test Report SPVER Printed: 2/11/ :40:43AM Page 4 of 9

26 EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ Phone/Fax: (800) / (856) / cinnmicrolab@emsl.com Order ID: Customer ID: Customer PO: Project ID: AETH Attn: Proj: Eric Mercer Aether Assessments, LLC 318 Indian Creek Drive Mechanicsburg, PA Camp Curtin ES Phone: (717) Fax: Collected: 02/09/2015 Received: 02/10/2015 Analyzed: 02/10/2015 Test Report: Allergenco-D( ) Analysis of Fungal Spores & Particulates by Optical Microscopy (Methods EMSL 05-TP-003, ASTM D7391) Lab Sample Number: Client Sample ID: Volume (L): Sample Location: CC-13 Rm CC-14 Rm CC-15 Rm 108 Spore Types Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Alternaria Ascospores Aspergillus/Penicillium 1* 10* Basidiospores Bipolaris Chaetomium Cladosporium 1* 10* Curvularia Epicoccum Fusarium Ganoderma Myxomycetes++ 1* 10* * 10* 10 Pithomyces Rust Scopulariopsis Stachybotrys Torula Ulocladium Unidentifiable Spores * 10* Zygomycetes Peronospora 1* 10* Total Fungi Hyphal Fragment Insect Fragment Pollen Analyt. Sensitivity 600x Analyt. Sensitivity 300x - 13* * * - Skin Fragments (1-4) Fibrous Particulate (1-4) Background (1-5) Bipolaris++ = Bipolaris/Drechslera/Exserohilum Myxomycetes++ = Myxomycetes/Periconia/Smut No discernable field blank was submitted with this group of samples. Farbod Nekouei, M.S., Laboratory Manager or Other Approved Signatory High levels of background particulate can obscure spores and other particulates leading to underestimation. Background levels of 5 indicate an overloading of background particulates, prohibiting accurate detection and quantification. Present = Spores detected on overloaded samples. Results are not blank corrected unless othewise noted. The detection limit is equal to one fungal spore, structure, pollen, fiber particle or insect fragment. "*" Denotes particles found at 300X. *-* denotes not detected. EMSL maintains liability limited to cost of anaysis. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc. Cinnaminson, NJ AIHA-LAP, LLC--EMLAP Lab Initial report from: 02/11/ :40:43 For Information on the fungi listed in this report please visit the Resources section at Test Report SPVER Printed: 2/11/ :40:43AM Page 5 of 9

27 EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ Phone/Fax: (800) / (856) / cinnmicrolab@emsl.com Order ID: Customer ID: Customer PO: Project ID: AETH Attn: Proj: Eric Mercer Aether Assessments, LLC 318 Indian Creek Drive Mechanicsburg, PA Camp Curtin ES Phone: (717) Fax: Collected: 02/09/2015 Received: 02/10/2015 Analyzed: 02/10/2015 Test Report: Allergenco-D( ) Analysis of Fungal Spores & Particulates by Optical Microscopy (Methods EMSL 05-TP-003, ASTM D7391) Lab Sample Number: Client Sample ID: Volume (L): Sample Location: CC-16 Rm CC Corridor CC-18 Rm 103 Spore Types Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Alternaria Ascospores Aspergillus/Penicillium Basidiospores Bipolaris Chaetomium Cladosporium Curvularia Epicoccum Fusarium Ganoderma Myxomycetes Pithomyces Rust Scopulariopsis Stachybotrys Torula Ulocladium Unidentifiable Spores * 10* Zygomycetes Peronospora Total Fungi None Detected - Hyphal Fragment * 10* Insect Fragment Pollen Analyt. Sensitivity 600x Analyt. Sensitivity 300x - 13* * * - Skin Fragments (1-4) Fibrous Particulate (1-4) Background (1-5) Bipolaris++ = Bipolaris/Drechslera/Exserohilum Myxomycetes++ = Myxomycetes/Periconia/Smut No discernable field blank was submitted with this group of samples. Farbod Nekouei, M.S., Laboratory Manager or Other Approved Signatory High levels of background particulate can obscure spores and other particulates leading to underestimation. Background levels of 5 indicate an overloading of background particulates, prohibiting accurate detection and quantification. Present = Spores detected on overloaded samples. Results are not blank corrected unless othewise noted. The detection limit is equal to one fungal spore, structure, pollen, fiber particle or insect fragment. "*" Denotes particles found at 300X. *-* denotes not detected. EMSL maintains liability limited to cost of anaysis. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc. Cinnaminson, NJ AIHA-LAP, LLC--EMLAP Lab Initial report from: 02/11/ :40:43 For Information on the fungi listed in this report please visit the Resources section at Test Report SPVER Printed: 2/11/ :40:43AM Page 6 of 9

28 EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ Phone/Fax: (800) / (856) / cinnmicrolab@emsl.com Order ID: Customer ID: Customer PO: Project ID: AETH Attn: Proj: Eric Mercer Aether Assessments, LLC 318 Indian Creek Drive Mechanicsburg, PA Camp Curtin ES Phone: (717) Fax: Collected: 02/09/2015 Received: 02/10/2015 Analyzed: 02/10/2015 Test Report: Allergenco-D( ) Analysis of Fungal Spores & Particulates by Optical Microscopy (Methods EMSL 05-TP-003, ASTM D7391) Lab Sample Number: Client Sample ID: Volume (L): Sample Location: CC-19 Library CC-20 Rm CC Corridor Spore Types Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Alternaria Ascospores Aspergillus/Penicillium Basidiospores Bipolaris Chaetomium Cladosporium * 10* 20 Curvularia * 10* Epicoccum Fusarium Ganoderma Myxomycetes * 30* Pithomyces Rust Scopulariopsis Stachybotrys Torula Ulocladium Unidentifiable Spores * 10* Zygomycetes Peronospora Total Fungi Hyphal Fragment Insect Fragment Pollen Analyt. Sensitivity 600x Analyt. Sensitivity 300x - 13* * * - Skin Fragments (1-4) Fibrous Particulate (1-4) Background (1-5) Bipolaris++ = Bipolaris/Drechslera/Exserohilum Myxomycetes++ = Myxomycetes/Periconia/Smut No discernable field blank was submitted with this group of samples. Farbod Nekouei, M.S., Laboratory Manager or Other Approved Signatory High levels of background particulate can obscure spores and other particulates leading to underestimation. Background levels of 5 indicate an overloading of background particulates, prohibiting accurate detection and quantification. Present = Spores detected on overloaded samples. Results are not blank corrected unless othewise noted. The detection limit is equal to one fungal spore, structure, pollen, fiber particle or insect fragment. "*" Denotes particles found at 300X. *-* denotes not detected. EMSL maintains liability limited to cost of anaysis. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc. Cinnaminson, NJ AIHA-LAP, LLC--EMLAP Lab Initial report from: 02/11/ :40:43 For Information on the fungi listed in this report please visit the Resources section at Test Report SPVER Printed: 2/11/ :40:43AM Page 7 of 9

29 EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ Phone/Fax: (800) / (856) / cinnmicrolab@emsl.com Order ID: Customer ID: Customer PO: Project ID: AETH Attn: Proj: Eric Mercer Aether Assessments, LLC 318 Indian Creek Drive Mechanicsburg, PA Camp Curtin ES Phone: (717) Fax: Collected: 02/09/2015 Received: 02/10/2015 Analyzed: 02/10/2015 Test Report: Allergenco-D( ) Analysis of Fungal Spores & Particulates by Optical Microscopy (Methods EMSL 05-TP-003, ASTM D7391) Lab Sample Number: Client Sample ID: Volume (L): Sample Location: CC-22 Gymnasium CC-23 Rm CC-24 Admin Corridor Spore Types Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Alternaria Ascospores Aspergillus/Penicillium Basidiospores Bipolaris Chaetomium Cladosporium Curvularia Epicoccum Fusarium Ganoderma Myxomycetes Pithomyces Rust Scopulariopsis Stachybotrys Torula Ulocladium Unidentifiable Spores Zygomycetes Peronospora Total Fungi - None Detected - - None Detected - - None Detected - Hyphal Fragment Insect Fragment Pollen Analyt. Sensitivity 600x Analyt. Sensitivity 300x - 13* * * - Skin Fragments (1-4) Fibrous Particulate (1-4) Background (1-5) Bipolaris++ = Bipolaris/Drechslera/Exserohilum Myxomycetes++ = Myxomycetes/Periconia/Smut No discernable field blank was submitted with this group of samples. Farbod Nekouei, M.S., Laboratory Manager or Other Approved Signatory High levels of background particulate can obscure spores and other particulates leading to underestimation. Background levels of 5 indicate an overloading of background particulates, prohibiting accurate detection and quantification. Present = Spores detected on overloaded samples. Results are not blank corrected unless othewise noted. The detection limit is equal to one fungal spore, structure, pollen, fiber particle or insect fragment. "*" Denotes particles found at 300X. *-* denotes not detected. EMSL maintains liability limited to cost of anaysis. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc. Cinnaminson, NJ AIHA-LAP, LLC--EMLAP Lab Initial report from: 02/11/ :40:43 For Information on the fungi listed in this report please visit the Resources section at Test Report SPVER Printed: 2/11/ :40:43AM Page 8 of 9

30 EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ Phone/Fax: (800) / (856) / cinnmicrolab@emsl.com Order ID: Customer ID: Customer PO: Project ID: AETH Attn: Proj: Eric Mercer Aether Assessments, LLC 318 Indian Creek Drive Mechanicsburg, PA Camp Curtin ES Phone: (717) Fax: Collected: 02/09/2015 Received: 02/10/2015 Analyzed: 02/10/2015 Test Report: Allergenco-D( ) Analysis of Fungal Spores & Particulates by Optical Microscopy (Methods EMSL 05-TP-003, ASTM D7391) Lab Sample Number: Client Sample ID: Volume (L): Sample Location: CC-25 Auditorium CC-26 Outdoors Dummy Dummy Dummy Spore Types Raw Count Count/m³ % of Total Raw Count Count/m³ % of Total Alternaria Ascospores Aspergillus/Penicillium Basidiospores Bipolaris Chaetomium Cladosporium Curvularia Epicoccum Fusarium Ganoderma Myxomycetes Pithomyces Rust Scopulariopsis Stachybotrys Torula Ulocladium Unidentifiable Spores Zygomycetes Peronospora Total Fungi - None Detected - - None Detected Hyphal Fragment Insect Fragment Pollen Analyt. Sensitivity 600x Analyt. Sensitivity 300x - 13* * Skin Fragments (1-4) Fibrous Particulate (1-4) Background (1-5) Bipolaris++ = Bipolaris/Drechslera/Exserohilum Myxomycetes++ = Myxomycetes/Periconia/Smut No discernable field blank was submitted with this group of samples. Farbod Nekouei, M.S., Laboratory Manager or Other Approved Signatory High levels of background particulate can obscure spores and other particulates leading to underestimation. Background levels of 5 indicate an overloading of background particulates, prohibiting accurate detection and quantification. Present = Spores detected on overloaded samples. Results are not blank corrected unless othewise noted. The detection limit is equal to one fungal spore, structure, pollen, fiber particle or insect fragment. "*" Denotes particles found at 300X. *-* denotes not detected. EMSL maintains liability limited to cost of anaysis. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc. Cinnaminson, NJ AIHA-LAP, LLC--EMLAP Lab Initial report from: 02/11/ :40:43 For Information on the fungi listed in this report please visit the Resources section at Test Report SPVER Printed: 2/11/ :40:43AM Page 9 of 9

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