SZCQ152149_SZCQ192256 Hazmat Report 20200622.pdf

An Equal Opportunity Employer M/F/V/H

Via Email

June 22, 2020 File No. 04.0191098.00

Ms. Kerry Peiser, PLA Landscape Architect/Project Manager Oak Point Associates 85 Middle Street Portsmouth, New Hampshire 03801

Re: Limited Asbestos Sampling Report Building 149 NH Air National Guard Newington, New Hampshire

Dear Ms. Peiser:

GZA GeoEnvironmental, Inc. (GZA) conducted limited asbestos sampling at Building 149 located at the NH Air National Guard facility in Newington, New Hampshire. As outlined in our proposal dated January 31, 2020, our scope of services was limited to the collection of bulk samples of suspect asbestos-containing materials (ACM) associated with the building roof systems, submission of the samples to an accredited laboratory, and reporting of the analytical results. Our work is subject to the Limitations contained herein.

The limited asbestos sampling was conducted at the site on June 10, 2020 by Mr. David Oliver, an asbestos inspector certified by the State of New Hampshire Department of Environmental Services, Air Resource Division inspector certification is included in Appendix A.

The limited asbestos sampling was performed in general accordance with the sample collection protocols established in United States Environmental Protection Agency (EPA) regulation 40 CFR 763, the Asbestos Hazard Emergency Response Act. A total of 21 bulk samples were collected from 7 homogeneous areas of suspect ACM. Bulk samples were submitted under chain of custody to EMSL Analytical, Inc. of Woburn, Massachusetts for analysis by polarized light microscopy with dispersion staining techniques per EPA methodology (40 CFR 763, Subpart F). The percentage of asbestos, where applicable, was determined by microscopical visual estimation. The laboratory was instructed to analyze samples from each homogeneous area until the first sample containing asbestos was identified.

Based on the results of laboratory analysis, a trace amount of asbestos was detected in one sample of the built-up roofing felts and compound collected from the

Oak Point Associates

04.0191098.00 Page | 2

designated work area referenced above. The sample with trace asbestos content was re-submitted to the laboratory for confirmation analysis using Transmission Electron Microscopy (TEM). The TEM analytical result confirmed that the asbestos content in the submitted sample was less than 1% Chrysotile asbestos; therefore, the material is not classified as ACM in accordance with NH regulations. A summary of suspect ACM samples collected during the survey is included in Table 1. The laboratory analytical reports are attached in Appendix B. We recommend you maintain a copy of this report for your records and provide a copy to the contractor that is performing the roof renovation work.

LIMITATIONS

Limited asbestos sampling was conducted in a manner consistent with the level of care and skill ordinarily exercised by members of the profession currently practicing under similar conditions in the same locale. The results, findings, conclusions and recommendations expressed in this report are based on conditions observed during the limited sampling event. This letter report has been prepared on behalf of and exclusively for use and reliance by the Client. This report is not a bidding document. Contractors or consultants reviewing this limited sampling report must draw their own conclusions regarding further investigation or remediation deemed necessary. GZA does not warrant the work of regulatory agencies, laboratories or other third parties supplying information, which may have been used in the preparation of this report. No warranty, express or implied is made.

GZA appreciates the opportunity to provide this service to Oak Point Associates. If you have any questions regarding this limited asbestos sampling report, please contact us at (603) 623-3600.

Very truly yours, GZA GEOENVIRONMENTAL, INC.

David G. Oliver, CMC Randy J. Meuse Senior Project Manager Consultant/Reviewer

Jeffrey D. Rowell, P.E.

Principal

DGO/JDR/RJM:kr p:\04jobs\0191000s\04.0191098.00\report\final 04.0191098.00 limited asbestos survey report 062220.docx

Attachments: Table 1 Summary of Sampled Materials and Results Appendix A Certification Appendix B Asbestos Laboratory Analytical Report

Table 1 Summary of Sampled Materials and Results

TABLE 1

SUSPECT ASBESTOS-CONTAINING MATERIAL SAMPLE SUMMARY

NH Air National Guard Building 149

Newington, New Hampshire

04.0191098.00

SAMPLE

NUMBER

MATERIAL DESCRIPTION MATERIAL LOCATION

ANALYTICAL

RESULTS

061020-B101 Built-up roofing felts with compound, black Exterior, roof, southwest section NAD

061020-B101B Built-up roofing felts with compound, black Exterior, roof, southeast section NAD

061020-B101C Built-up roofing felts with compound, black Exterior, roof, center section, west side NAD

061020-B101D Built-up roofing felts with compound, black Exterior, roof, northeast section NAD

061020-B101E Built-up roofing felts with compound, black Exterior, roof, northwest section 0.23%

Chrysotile*

061020-B102 Fiberboard, brown Exterior, roof, southwest section, under B101 NAD

061020-B102B Fiberboard, brown Exterior, roof, center section, west side, under B101C NAD

061020-B102C Fiberboard, brown Exterior, roof, northeast section, under B101D NAD

061020-B103 Felt paper, black Exterior, roof, southwest section, under B102 NAD

061020-B103B Felt paper, black Exterior, roof, center section, west side, under B102B NAD

061020-B103C Felt paper, black Exterior, roof, northeast section, under B102C NAD

061020-B104 Paper, tan Exterior, roof, southwest section, under B103 NAD

061020-B104B Paper, tan Exterior, roof, center section, west side, under B103B NAD

061020-B104C Paper, tan Exterior, roof, northeast section, under B103C NAD

061020-B105 Edge flashing felts with compound, black Exterior, roof, northeast corner NAD

061020-B105B Edge flashing felts with compound, black Exterior, roof, east edge, center NAD

061020-B105C Edge flashing felts with compound, black Exterior, roof, south edge, center NAD

061020-B106 Penetration flashing compound, silver-black Exterior, roof, southwest vent NAD

061020-B106B Penetration flashing compound, silver-black Exterior, roof, south air handler NAD

061020-B107 Roof patch compound, black Exterior, roof, patch on north center section, north edge NAD

061020-B107B Roof patch compound, black Exterior, roof, patch on north center section, east edge NAD

Notes:

NAD - No Asbestos Detected NA/PS - Sample Not Analyzed Due To Positive Stop *- Confirmation Analysis performed by Transmission Electron Microscopy

P:\04Jobs\0191000s\04.0191098.00\Report\04.0191098 ACM Sample Summary.xls GZA GeoEnvironmental, Inc.

Proactive by Design

GZA GeoEnvironmental, Inc.

An Equal Opportunity Employer M/F/V/H

Via Email

File No. 04.0191099.00

Ms. Kerry Peiser, PLA Landscape Architect/Project Manager Oak Point Associates 85 Middle Street Portsmouth, New Hampshire 03801

Re: Limited Asbestos Sampling Report Building 256 NH Air National Guard Newington, New Hampshire

Dear Ms. Peiser:

GZA GeoEnvironmental, Inc. (GZA) conducted limited asbestos sampling at Building 256 located at the NH Air National Guard facility in Newington, New Hampshire. As outlined in our proposal dated January 31, 2020, our scope of services was limited to the collection of bulk samples of suspect asbestos-containing materials (ACM) associated with the building roof systems, submission of the samples to an accredited laboratory, and reporting of the analytical results. Our work is subject to the Limitations contained herein.

The limited asbestos sampling was conducted at the site on June 10, 2020 by Mr. David Oliver, an asbestos inspector certified by the State of New Hampshire Department of Environmental Services, Air Resource Division inspector certification is included in Appendix A.

The limited asbestos sampling was performed in general accordance with the sample collection protocols established in United States Environmental Protection Agency (EPA) regulation 40 CFR 763, the Asbestos Hazard Emergency Response Act. A total of 21 bulk samples were collected from 7 homogeneous areas of suspect ACM. Bulk samples were submitted under chain of custody to EMSL Analytical, Inc. of Woburn, Massachusetts for analysis by polarized light microscopy with dispersion staining techniques per EPA methodology (40 CFR 763, Subpart F). The percentage of asbestos, where applicable, was determined by microscopical visual estimation. The laboratory was instructed to analyze samples from each homogeneous area until the first sample containing asbestos was identified.

Laboratory analysis confirmed the presence of ACMs, including penetration and edge flashing compound. In addition, a trace amount of asbestos was detected in two

Oak Point Associates

04.0191099 Page | 2

samples of the built-up roofing felts and compound collected from the designated work area referenced above.

The samples with trace asbestos content were re-submitted to the laboratory for confirmation analysis using Transmission Electron Microscopy (TEM). The TEM analytical results confirmed that the asbestos content in the submitted samples were non-detected or less than 1% Chrysotile asbestos; therefore, the material is not classified as ACM in accordance with NH regulations. A summary of suspect ACM samples collected during the survey is included in Table 1. The laboratory analytical reports are attached in Appendix B. A summary of the classification, condition, and approximate quantity of identified ACM is presented in Table 2.

In New Hampshire, a properly trained roofing contractor is permitted to perform removal of ACM roofing material as long as the material remains in a non-friable condition, and the materials are properly packaged and disposed of at a facility approved for asbestos waste. We recommend you maintain a copy of this report for your records and provide a copy to the contractor that is performing the roof renovation work.

LIMITATIONS

Limited asbestos sampling was conducted in a manner consistent with the level of care and skill ordinarily exercised by members of the profession currently practicing under similar conditions in the same locale. The results, findings, conclusions and recommendations expressed in this report are based on conditions observed during the limited sampling event. This letter report has been prepared on behalf of and exclusively for use and reliance by the Client. This report is not a bidding document. Contractors or consultants reviewing this limited sampling report must draw their own conclusions regarding further investigation or remediation deemed necessary. GZA does not warrant the work of regulatory agencies, laboratories or other third parties supplying information, which may have been used in the preparation of this report. No warranty, express or implied is made.

GZA appreciates the opportunity to provide this service to Oak Point Associates. If you have any questions regarding this limited asbestos sampling report, please contact us at (603) 623-3600.

Very truly yours, GZA GEOENVIRONMENTAL, INC.

David G. Oliver, CMC Randy J. Meuse Senior Project Manager Consultant/Reviewer

Jeffrey D. Rowell, P.E.

Principal

DGO/JDR/RJM:kr p:\04jobs\0191000s\04.0191099.00\report\final 04.0191099.00 limited asbestos survey report 062220.docx

Attachments: Table 1 Summary of Sampled Materials and Results Table 2 Confirmed Asbestos-Containing Materials

Appendix B Laboratory Report

Tables

TABLE 1

SUSPECT ASBESTOS-CONTAINING MATERIAL SAMPLE SUMMARY

NH Army National Guard Building 256

Newington, New Hampshire

04.0191099.00

SAMPLE

NUMBER

MATERIAL DESCRIPTION MATERIAL LOCATION

ANALYTICAL

RESULTS

061020-B01 Built-up roofing felts with compound, black Exterior, main roof field, south section, center NAD

061020-B01B Built-up roofing felts with compound, black Exterior, main roof field, center section NAD*

061020-B01C Built-up roofing felts with compound, black Exterior, upper roof field, south section, center NAD

061020-B01D Built-up roofing felts with compound, black Exterior, upper roof field, north section, center NAD

061020-B01E Built-up roofing felts with compound, black Exterior, main roof field, north section, center 0.39%

Chrysotile* 061020-B02 Asphalt membrane, black

Exterior, main roof field, south section, center, under 2" fiberglass foam insulation board

NAD

061020-B02B Asphalt membrane, black Exterior, main roof field, center section, under 2" fiberglass foam insulation board

NAD

061020-B02C Asphalt membrane, black Exterior, upper roof field, south section, center, under

2" fiberglass foam insulation board

NAD

061020-B03 Asphalt membrane, black Exterior, main roof field, south section, center, under 4" fiberglass foam insulation board

NAD

061020-B03B Asphalt membrane, black Exterior, main roof field, center section, under 4" fiberglass foam insulation board

NAD

061020-B03C Asphalt membrane, black Exterior, upper roof field, south section, center, under

4" fiberglass foam insulation board

NAD

061020-B04 Paper, pink Exterior, main roof field, south section, center, under fiberglass foam insulation board, on wood deck

NAD

061020-B04B Paper, pink Exterior, main roof field, center section, under fiberglass foam insulation board, on wood deck

NAD

061020-B04C Paper, pink Exterior, upper roof field, south section, center, under fiberglass foam insulation board, on wood deck

NAD

061020-B05 Penetration flashing, black Exterior, main roof field, southwest drain 15% Chrysotile

061020-B05B Penetration flashing, black Exterior, main roof field, southeast drain NA/PS

061020-B06 Penetration flashing compound, gray-black Exterior, main roof field, southwest vent 10% Chrysotile

061020-B06B Penetration flashing compound, gray-black Exterior, main roof field, northeast vent NA/PS

061020-B07 Edge flashing compound, gray-black Exterior, main roof field, southeast corner 15% Chrysotile

061020-B07B Edge flashing compound, gray-black Exterior, main roof field, northwest corner NA/PS

061020-B07C Edge flashing compound, gray-black Exterior, main roof field, north edge, center NA/PS

Notes:

NAD - No Asbestos Detected NA/PS - Sample Not Analyzed Due To Positive Stop *- Confirmation Analysis performed by Transmission Electron Microscopy

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TABLE 2

CONFIRMED ASBESTOS-CONTAINING MATERIAL RESULTS

NH Army National Guard Building 256

Newington, New Hampshire

04.0191099.00

MATERIAL DESCRIPTION MATERIAL LOCATION

PERCENT/TYPE

ASBESTOS

USEPA CATEGORY CONDITION

Penetration flashing, black Exterior, roof drains 15% Chrysotile Cat. I, Nonfriable Good 8 SF

Penetration flashing compound, gray-black Exterior, roof vents. 6 Units 10% Chrysotile Cat. I, Nonfriable Good 60 SF

Edge flashing compound, gray-black Exterior, main and upper roof fields 15% Chrysotile Cat. I, Nonfriable Good 600 SF

NOTES:

1. LF = Linear Feet, SF = Square Feet

ESTIMATED

QUANTITY

This summary includes the location, material type, and approximate quantities of accessible asbestos identified in the site buildings. Quantities of materials were assessed by a non-calibrated wheeled tape measure or visual estimation and should be considered as approximate values. It should be noted that these are only estimates, and are based on limited visual observations of accessible areas of the site.

4. Category II Non-friable: Includes any non-friable materials other than Category I materials that contain more than 1% asbestos.

3. Category I Non-friable: Includes asbestos-containing packings, gaskets, asphaltic roofing products, resilient flooring, pliable sealants and mastics.

2. RACM: Includes materials that, when dry, may be crumbled, pulverized or reduced to powder by hand pressure.

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Appendix A Certifications

GZA GeoEnvironmental, Inc.