Clarksburg Courthouse Hazardous Materials Report.pdf

Clarksburg Courthouse Phase 1 Design Project

Clarksburg Federal Building & Courthouse

Clarksburg, WV

General Services Administration

HAZARDOUS MATERIALS REPORT

95 Percent Submission

19 July 2022

Contract Number: GS‐03‐P‐17‐DX‐D‐0003

Order Number: 47PD0220F0017

Our Ref: 164.59 7900 Westpark Dr., Suite A405 McLean, VA 22102

Limited Asbestos & Lead Testing

Clarksburg HVAC Study Clarksburg Federal Building & Courthouse

500 West Pike Street Clarksburg, WV 26301

Summer Ref. 164.84

Prepared for

7900 Westpark Drive

Suite A405 McLean, VA 22102

October 19, 2021

REVISED

Prepared by

10310-B Baltimore National Pike

Ellicott City, MD 21042

(410) 480-3636

10310-B Baltimore National Pike

Ellicott City, MD 21042

Office: (410) 480-3636

Fax (410) 480-3637

October 19, 2021

Summer Consultants, Inc.

7900 Westpark Drive Suite A405 McLean, VA 22102

Re: Limited Asbestos & Lead Testing

Clarksburg HVAC Study Clarksburg Federal Building & Courthouse 500 West Pike Street

Gentlemen:

AERO EH&S, Inc. (AERO) is pleased to submit the attached Limited Asbestos & Lead Testing report for the referenced site. The testing included all accessible locations specified by the Summer Consultants' Project Engineer during the walkthrough inspections as potentially impacted by the referenced project. The report includes the procedures and methods for testing.

As a result of our review and survey, asbestos-containing materials, lead-based paint, and paint containing lead were identified. AERO has provided conclusions and recommendations regarding these materials within the report.

AERO appreciates the opportunity to perform limited asbestos and lead testing for Summer Consultants, Inc. Please contact our office if you have any questions.

Sincerely, AERO EH&S, Inc.

S. Michael Derdeyn Michael J. Hentgen CIH CSP Senior Project Manager President

Hazardous Materials Clarksburg HVAC Study Clarksburg Federal Building, Clarksburg, WV

LIMITED ASBESTOS & LEAD TESTING

Clarksburg HVAC Study

Clarksburg Federal Building & Courthouse 500 West Pike Street

Table of Contents

1.0 Purpose and Scope of Service

2.0 Findings

2.1 Asbestos-Containing Materials

2.2 Lead-in-Paint

3.0 Conclusions and Recommendations

APPENDIX A Previous Testing Reports APPENDIX B Asbestos Bulk Sample Results APPENDIX C ACM Sample Location Diagrams APPENDIX D XRF Testing Results APPENDIX E XRF Reading Location Diagrams

Clarksburg Federal Building, Clarksburg, WV

LIMITED ASBESTOS & LEAD TESTING

Clarksburg HVAC Study

Clarksburg Federal Building & Courthouse 500 West Pike Street

1.0 Purpose and Scope of Service

The purpose of this task was to identify and document the presence of asbestos-containing materials (ACM) and lead-containing paint on materials anticipated to be impacted by the Clarksburg HVAC Study at the Clarksburg Federal Building & Courthouse in Clarksburg, WV. The survey was conducted in accordance with the following scope of work. AERO relied upon past testing results where practical and available.

Asbestos-Containing Materials

(1) AERO reviewed previous hazardous materials inspection reports as made available by the Client.

(2) Licensed asbestos inspectors conducted a visual inspection of representative materials suspected to contain asbestos that will be affected by the referenced project. The survey was conducted in general accordance with Occupational Safety and Health Administration (OSHA) and Environmental Protection Agency (EPA) AHERA requirements.

(3) AERO made a list of suspect asbestos-containing materials (ACM) that may be impacted by the planned activities and compared it to the list of previously identified ACM. Samples were collected of suspect materials not previously identified as asbestos-containing or where it was unclear if the material to be impacted had been sampled.

(4) Bulk samples were analyzed for asbestos fiber content at a laboratory accredited under the National Voluntary Laboratory Accreditation Program. The samples were analyzed by polarized light microscopy (PLM) using EPA Methods 600/M4- 82-020 and/or 600/R-93/116.

(5) Based on field observations, additional sampling, and existing data provided by the Client, AERO prepared this report regarding the presence and extent of asbestos-containing materials potentially impacted by the project.

Clarksburg Federal Building, Clarksburg, WV

Lead-In-Paint

(1) An EPA Lead Risk Assessor conducted a limited visual inspection of various painted surfaces reported to contain lead that may be impacted by the planned renovations. The visual inspection included identification of painted surfaces in the affected area for which existing data did not appear to be available or were ambiguous.

(2) An EPA Lead Inspector Technician trained in sampling protocols and use of the X- Ray Fluorescence Analyzer (XRF) conducted additional testing of representative painted surfaces that may be impacted by the planned renovation.

(3) Use of the XRF instrument was in general accordance with the Performance Characteristic Sheet (PCS) methodology for the Viken Pb200i dated December 1, 2020. XRF instrument calibration checks were performed according to the PCS.

The PCS is provided as supplemental guidance to the US Housing and Urban Development (HUD) “Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing” and is a joint product of HUD and EPA.

(4) Testing locations were identified by substrate type, component, and color.

Surfaces to be tested only included painted building components that may be impacted by the project.

(5) Based on field observations, existing data provided by the Client, and results of additional testing, AERO prepared this report regarding the presence and extent of lead-containing paints impacted by this project.

2.0 Findings

2.1 Asbestos-Containing Materials

This limited asbestos survey was not intended to determine the presence, location, and quantity of all ACM and/or PACM at the work site. This survey was limited to the identification of only those suspect asbestos-containing materials that would be directly impacted by the proposed renovation. Therefore, this limited survey may not be suitable to satisfy the building/facility owner’s responsibilities to determine the presence, location, and quantity of ACM and/or PACM at the work site in accordance with OSHA General and Construction Industry standards (29 CFR 1910.1001 & 29 CFR 1926.1101).

AERO reviewed previous asbestos inspection reports and other provided documentation for the Site prior to performing the on-site surveys. Relevant findings from the following reports have been incorporated into this report:

Clarksburg Federal Building, Clarksburg, WV

Identification of Asbestos Materials at U.S. Post Office, 500 West Pike Street, Clarksburg, WV – Final Report, performed by Loss Control, Inc. and dated June 1990.

Asbestos Survey Report for The Clarksburg M.P.O., 500 West Pike Street, Clarksburg, WV 26301 performed by Superior Surveys and Management, Inc. and dated July 1996.

Limited Asbestos & Lead Testing, Clarksburg Courthouse Phase 1 Design Project, 500 West Pike Street, Clarksburg, WV performed by AERO EH&S, Inc. and dated November 2020. (Completely integrated into this report).

Abbreviated summaries of the referenced documentation have been included in Appendix A of this report.

The following is a list of suspect asbestos-containing materials identified during the project surveys that have the potential to be impacted by the project:

Acoustical Plaster Ceiling (2 Types)

2-Coat Plaster

2-Coat Plaster Painted Black (Supervisor Catwalk)

Drywall and Associated Joint Compound

2’ x 4’ Ceiling Tile o Grid Pattern o Random Nick and Hole o Worm and Fissure Ceiling Tile (Old Style) o Random Size Hole

Off-White Mastic on Fiberglass Pipe Insulation

1”-3” Mudded Pipe Fittings

3”-6” Mudded Pipe Fittings

6”-12” Mudded Pipe Fittings

Smooth Coat Plaster

Grey Window Caulk

Black AHU Mastic

Black Roofing Caulk

Black Asphalt Plank Flooring and Associated Mastic

6” Black Vinyl Cove Base and Associated Mastic

4” Vinyl Cove Base and Associated Mastic o Black o Grey

2” Black Vinyl Cove Base and Associated Mastic

Grey End Cap Mastic

Cloth Wrap over Fiberglass Metal Duct Insulation (Painted off white)

12” x 12” Floor Tile and Associated Mastic

Clarksburg Federal Building, Clarksburg, WV o White with Beige Mottle o Beige Mottle (Old Style)

End Cap Mastic o White o Painted Orange

Burlap-Asphalt Floor and Associated Mastic

24” Boiler Breeching Insulation

Black Flex Joint and Mastic

AERO collected seventy-eight (78) bulk samples of suspect ACM, resulting in eighty-nine

(89) analyses due to layering of materials and positive stop analysis. The samples were analyzed by Scientific Analytical Institute (SAI) of Greensboro, NC using polarized light microscopy according to EPA Method 600/R-93/116 “Asbestos Analysis of Bulk Materials”. SAI participates in the National Voluntary Laboratory Accreditation Program (NVLAP Lab Code 200664-0) and is accredited by the National Institute of Standards and Technology (NIST).

The following table summarizes the identified asbestos-containing materials with potential for disturbance during the performance of the renovation.

Asbestos-Containing Materials Summary Table

Sample Description Friable Condition Asbestos, %

Original Acoustical Plaster Ceiling (above “Popcorn” Ceiling in Courtroom)

Yes Poor 30-50% Chrysotile

Acoustical Plaster Ceiling (“Popcorn” Ceiling in Courtroom)

Yes Good 1-10% Chrysotile

Black Asphalt Plank Flooring and Associated Mastic

No Good 12% Chrysotile

12” x 12” White with Beige Mottle Floor Tile and Associated Mastic

No Good

Floor Tile 3% Chrysotile

Mastic 4% Chrysotile

12” x 12” Beige Mottle Floor Tile (Old Style) and Associated Mastic

No Good

Floor Tile 3% Chrysotile

Mastic 5% Chrysotile

There are additional materials in the building that have been previously identified as asbestos containing but were either not anticipated to be impacted by the scope of this renovation project or were not observed/accessible during the inspection. Some of these

Clarksburg Federal Building, Clarksburg, WV previously identified ACM have been removed during subsequent renovation projects.

These materials are presented in the previous asbestos inspection reports referenced earlier are included in Appendix A. A summary of these previously identified ACM materials is also included in the appendix.

The enclosed bulk sample log and laboratory reports (Appendix B) contain a listing of all analyzed samples, sampling locations, and analytical results. Results are reported in percent asbestos by volume and indicate the type(s) of asbestos. Other common non-asbestos components may also be noted on the analytical reports. Drawings depicting bulk sampling locations can be found in Appendix C.

2.2 Lead-in-Paint

AERO reviewed the previous lead paint inspection data prior to performing the on-site survey. The following report has been completely incorporated into this report:

Limited Asbestos & Lead Testing, Clarksburg Courthouse Phase 1 Design Project, 500 West Pike Street, Clarksburg, WV performed by AERO EH&S, Inc. and dated November 2020. (Completely integrated into this report).

AERO conducted a lead-based paint screening survey of representative surfaces and materials to supplement the list identified lead-based paint and materials containing lead that could be disturbed during the performance of work associated with the renovation project. The survey was performed by an EPA certified Lead Risk Assessor trained in sampling protocols and use of the Viken Pb200i X-Ray Fluorescence Analyzer (XRF).

The following summary of building components have been identified as materials suspected of being coated with paint containing lead and may be impacted by the renovation:

Plaster Walls and Ceilings Wood Chair Rails

Metal Fan Coil Units Drywall Columns

Metal Platform Wood Windowsills

Metal Fan Housings Metal Lintel

Metal Pipes Metal AHUs

Wood Doors Concrete Wall Block

Wood Door Casing Metal Structural Beams

Metal Ladders Metal Ceiling

Concrete Columns Metal Beams

Metal Doors Metal Columns

Metal Conduit Metal Door Casings

Metal Electrical Panels Drywall Walls

Plaster Columns Metal Ductwork

Metal Pipe Supports Concrete Floors

Clarksburg Federal Building, Clarksburg, WV

Fiberglass Duct Insulation Concrete Ceilings

Metal Tank Fiberglass Pipe Insulation

Metal Switch Metal Catwalk

Ceramic Walls Wood Baseboards

Plaster Ceilings Metal Radiator

Metal Elevator Motor Metal Elevator Traction Wheel

Metal Elevator Equipment Support Metal Elevator Governor

Concrete Platform Floor Concrete Equipment Curb

Metal Elevator Control Panels Metal Floor Panels

Concrete Walls Metal Stairs

Metal Pipe Supports Metal Handrails

Metal Roof Trusses Metal Transformers

Metal Fan Housings

XRF testing revealed the following surfaces with lead concentrations of 1.0 mg/cm2 or greater and are considered to be lead-based paint:

Metal Pipes Wood Windowsills

Wood Doors Metal Lintel

Wood Door Casing Metal Pipe Supports

Fiberglass Pipe Insulation Wood Baseboards

Plaster Ceilings Concrete Walls

Metal Stairs Metal Columns

Metal Roof Trusses

XRF testing revealed lead concentrations less than 1.0 mg/cm2, but greater than the limit of detection for the instrument, on the following surfaces and are therefore considered to be lead-containing:

Plaster Walls Metal Ceiling

Metal Fan Housings Metal Beams

Metal Ladders Metal Columns

Metal Doors Metal Door Casings

Metal Conduit Metal Ductwork

Metal Electrical Panels Plaster Columns

Metal Switch Concrete Floors

Concrete Ceilings Metal Radiator

Metal Elevator Governor Concrete Floors

The remaining XRF tests revealed lead concentrations less than the limit of detection for the instrument used. Lead concentrations below the detection limit for the XRF must be verified by paint chip sampling to exclude those surfaces from the OSHA Lead in Construction requirements.

Clarksburg Federal Building, Clarksburg, WV

Appendix D contains a spreadsheet with all data obtained from the representative XRF testing, including lead concentrations reported in milligrams per square centimeter (mg/cm2) and a POS (positive) or NEG (negative) classification with respect to the threshold for lead-based paint for each reading. All of the POS values are indicated in red boldface in the spreadsheet. The XRF reading location drawings are included in Appendix E.

State of West Virginia regulations define a lead-based paint as paint or other surface coatings that contains lead at a level defined by the commissioner by legislative rule as provided in Section 16-35-4 of the West Virginia Lead Abatement Act. Federal regulations define a lead-based paint as any paint or other surface coating containing lead or lead in its compounds in any quantity greater than 0.50% lead by weight, or more than 1.0 mg/cm2.

The Occupational Safety and Health Administration (OSHA) regulates lead present in the workplace in any concentration.

The OSHA Standard requires an employer to ensure that no employee is exposed to lead at concentrations greater than 50 micrograms of lead per cubic meter of air (μg/M3) averaged over an eight-hour period. The Standard further requires the employer to make a determination of its employees' potential exposure to lead. The Standard details presumed exposure levels for various construction activities. The employer must provide adequate personal and respiratory protection to match the presumed exposure listed in the Standard. Deviation from the presumed exposure is typically achieved by performing personal monitoring during various representative construction activities. The level of personal and respiratory protection can then be modified based upon the results of the monitoring.

3.0 Conclusions and Recommendations

The following conclusions and recommendations are based upon the work conducted for this survey and AERO’s understanding of the project.

A. Friable surfacing ACM was identified in the form of the original acoustical ceiling plaster and a more recently installed “popcorn” ceiling in the courtroom.

The original acoustical plaster ceiling in the courtroom is damaged but is located above a newer “popcorn” ceiling that is in good condition. The Environmental Protection Agency (EPA), Occupational Safety and Health Administration (OSHA), and the State of West Virginia regulate friable asbestos-containing materials. All friable asbestos-containing materials must be removed by a licensed asbestos abatement contractor and disposed of as a regulated waste prior to renovation activities that will disturb these materials.

Clarksburg Federal Building, Clarksburg, WV

B. Floor tiles, asphalt plank flooring and associated mastics were determined to contain asbestos. The EPA classifies this material as a Category I non-friable material. The EPA regulates Category I non-friable materials (resilient floor coverings, asphalt roof products, gaskets, and packings) only when they are rendered friable. AERO recommends that a licensed asbestos abatement contractor remove these materials prior to activities that would result in their disturbance.

C. If any additional suspect materials are encountered during construction activities the materials should be assumed to be asbestos containing until sampling determines otherwise.

D. The OSHA Construction Asbestos Standard requires building and/or facility owners to notify the following persons of the presence, location, and quantity of asbestos-containing material (ACM) or material presumed to be ACM at work sites in their buildings and facilities:

Prospective employers applying or bidding for work whose employees reasonably can be expected to work in or adjacent to areas containing such material.

Employees of the owner who will work in or adjacent to areas containing such material.

On multi-employer worksites, all employers of employees who will be performing work within or adjacent to areas containing such materials.

Tenants who will occupy areas containing such material.

In accordance with the OSHA Construction Asbestos Standard, all contractors, tenants, custodial, and maintenance workers who may come in contact with ACM during the course of their normal duties should be informed of the locations of ACM.

E. Materials identified or assumed to be asbestos containing must be abated and disposed of in accordance with OSHA, EPA and State of West Virginia regulations prior to activities that would result in their disturbance. The abatement must be performed in accordance with the GSA Guide Specification Section 02085 – “Asbestos Abatement Procedures” and comply with OSHA 29 CFR 1926.1101 and all other applicable regulations. A licensed asbestos abatement contractor is required to perform the removals.

F. Lead-based and lead-containing paints were identified during the survey.

Removal of paint with lead as a result of demolition activities does not necessarily constitute a lead-based paint abatement provided they have not been included in the renovation plans to reduce or eliminate a lead hazard.

However, if lead-based paint is removed with the intention of reducing or

Clarksburg Federal Building, Clarksburg, WV eliminating a lead hazard, then the removal must be performed by a licensed lead abatement contractor.

G. Painted surfaces identified as being covered with paint containing lead in any concentration should be handled in accordance with the GSA Guide Specification Section 02090 “Lead Based Paint Control Procedures”, and 29 CFR 1926.62, the OSHA Lead Exposure in Construction Standard.

Contractors should be notified of all known lead-containing paints prior to bidding on work at the Site. AERO recommends that Contractors comply with the OSHA Lead in Construction Standard when impacting any painted surface.

H. Representative demolition waste stream samples should be collected and submitted for TCLP analysis. Should TCLP results reveal lead concentrations of 5 parts per million or higher, the waste stream should be handled and disposed of as hazardous waste.

APPENDIX A

Previous Testing Reports

Summary of Identified Asbestos-containing Materials (1990 & 1995 Reports)

1990 Survey

Mudded Elbows (CPO-1, 2) 15-20% Chrysotile Old Courtroom Ceiling (CPO-9) 40-50% Chrysotile Roofing Tar (CPO-10) 15-20% Chrysotile Roofing Insulation, Cooling Tower (CPO-11) 1-5% Chrysotile Roofing Insulation, Tar on Valve, Cap Pitch (CPO-12) 20-25% Chrysotile Roofing, Condensing Unit Pipe Opening (Pitch Pocket) (CPO-13) 1-5% Chrysotile Roof Flashing (CPO-14) 1-5% Chrysotile Window Caulking (CPO-15) 1-5% Chrysotile Acoustical Ceiling (CPO-20, 21, 22) 1-10% Chrysotile Mastic assoc. w/ 12x12 Beige Floor Tile (CPO-29) 15-20% Chrysotile 12”x12” Brown Floor Tile and Mastic (CPO-35) 1-5% Chrysotile 1’x2’ Black Floor Tile and Mastic (CPO-34) 10-15% Chrysotile 9”x9” Green Floor Tile and Mastic (CPO-36 and CPO-37) 1-5% Chrysotile Elevator brake shoes assumed Electrical equipment assumed

1995 Survey

05 Breeching Insulation 10-20% Chrysotile 02 9”x9” Green Floor Tile 10-25% Chrysotile 01 Mastic assoc. w/ 9x9 Green Floor Tile 10-30% Chrysotile

02.1 9”x9” Grey Floor Tile 10-30% Chrysotile 17 Mastic assoc. w/ 12”x12” White Floor Tile 20-35% Chrysotile

16.1 12”x12” Brown Floor Tile 5-10% Chrysotile

17.1 Mastic assoc. w/ 12”x12” Brown Floor Tile 10-30% Chrysotile 39 Elevator Brake Shoes 50-70% Chrysotile 12 Asphalt Plank Floor 20-30% Chrysotile 11 Mastic assoc. w/ Asphalt Plank Floor 10-50% Chrysotile

09.2 Interior Window Caulk 2 10-30% Chrysotile

21.1 Asphalt Sealer on Cooling Towers 25-40% Chrysotile

09.12 Exterior Window Caulk 5-10% Chrysotile

09.16 Exterior Caulk, FBI Door Entry 15-25% Chrysotile

09.20 Exterior Caulk #20 @ Loading Dock Exhaust Vents 5-10% Chrysotile

09.21 Exterior Caulk #21 @ North Wall Vents 5-10% Chrysotile

04 Pipe insulation @saddles 10-25% Amosite

04.1 Air Cell Pipe Insulation 10-60% Chrysotile

Spray-on Fireproofing assumed Fire Doors assumed Electrical Insulation assumed Ceramic Tile Mastic assumed Boiler Refractory Mud assumed

APPENDIX B

Asbestos Bulk Sample Results

Bulk Asbestos Analysis By Polarized Light Microscopy

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

30% Chrysotile

Acoustical plaster ceiling layers inseparable

White, Gray Non Fibrous Heterogeneous

Crushed71954477PLM_1

Other 70%

Not Analyzed

Acoustical plaster ceiling

71954477PLM_2

Not Analyzed

Acoustical plaster ceiling

71954477PLM_3

None Detected

Plaster wall White Non Fibrous Heterogeneous

Crushed71954477PLM_4

Other 100%

None Detected

Plaster wall White Non Fibrous Heterogeneous

Crushed71954477PLM_5

Other 100%

None Detected

Plaster wall White Non Fibrous Heterogeneous

Crushed71954477PLM_6

Other 100%

None Detected

Drywall & mud drywall: none detect; joint compnd: none detect

White Non Fibrous Heterogeneous

Crushed71954477PLM_7

Cellulose Other 10% 90%

None Detected

Drywall & mud drywall: none detect; joint compnd: none detect

White Non Fibrous Heterogeneous

Crushed71954477PLM_8

Cellulose Other 10% 90%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

Jalen Moore (92)

P-F-002 r15 1/16/2021

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

None Detected

Drywall & mud drywall: none detect; joint compnd: none detect

White Non Fibrous Heterogeneous

Crushed71954477PLM_9

Cellulose Other 10% 90%

None Detected

Ceiling tile grid pattern Gray Fibrous Heterogeneous

Ashed71954477PLM_10

Cellulose Fiber Glass

Other 60% 20%

20%

None Detected

Ceiling tile grid pattern Gray Fibrous Heterogeneous

Ashed71954477PLM_11

Cellulose Fiber Glass

Other 60% 20%

20%

None Detected

Off white end cap mastic Beige Non Fibrous Heterogeneous

Ashed71954477PLM_12

Other 100%

None Detected

Off white end cap mastic Beige, Yellow Non Fibrous Heterogeneous

Ashed71954477PLM_13

Fiber Glass Other 20% 80%

None Detected

3-6 inch mudded pipe fitting Gray Non Fibrous Heterogeneous

Crushed71954477PLM_14

Cellulose Fiber Glass

Other 10% 10%

80%

None Detected

3-6 inch mudded pipe fitting Gray Non Fibrous Heterogeneous

Crushed71954477PLM_15

Cellulose Fiber Glass

Other 10% 10%

80%

None Detected 16 - A

Smooth coat plaster ceiling finish

White Non Fibrous Heterogeneous

Crushed71954477PLM_16

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

None Detected 16 - B

Smooth coat plaster ceiling base

Gray Non Fibrous Heterogeneous

Crushed71954477PLM_74

Other 100%

None Detected 17 - A

Smooth coat plaster ceiling finish

White Non Fibrous Heterogeneous

Crushed71954477PLM_17

Other 100%

None Detected 17 - B

Smooth coat plaster ceiling base

Gray Non Fibrous Heterogeneous

Crushed71954477PLM_75

Other 100%

None Detected 18 - A

Smooth coat plaster ceiling finish

White Non Fibrous Heterogeneous

Crushed71954477PLM_18

Other 100%

None Detected 18 - B

Smooth coat plaster ceiling base

Gray Non Fibrous Heterogeneous

Crushed71954477PLM_76

Other 100%

None Detected

Grey window caulk Gray Non Fibrous Heterogeneous

Ashed71954477PLM_19

Other 100%

None Detected

Grey window caulk Gray Non Fibrous Heterogeneous

Ashed71954477PLM_20

Other 100%

None Detected

Black AHU mastic Black, Gray Non Fibrous Heterogeneous

Ashed71954477PLM_21

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

None Detected

Black AHU mastic Black, Gray Non Fibrous Heterogeneous

Ashed71954477PLM_22

Other 100%

None Detected

Black roof caulk Black Non Fibrous Heterogeneous

Ashed71954477PLM_23

Other 100%

None Detected

Black roof caulk Black Non Fibrous Heterogeneous

Ashed71954477PLM_24

Other 100%

12% Chrysotile

Black asphalt plank floor

Black Non Fibrous Heterogeneous

Dissolved71954477PLM_25

Other 88%

Not Analyzed

Black asphalt plank floor

71954477PLM_26

Not Analyzed

Black asphalt plank floor

71954477PLM_27

None Detected 28 - A

6" Black cove base w/ mastic cove base

Black Non Fibrous Heterogeneous

Ashed71954477PLM_28

Other 100%

None Detected 28 - B

6" Black cove base w/ mastic mastic

Brown Non Fibrous Heterogeneous

Dissolved71954477PLM_77

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

None Detected 29 - A

6" Black cove base w/ mastic cove base

Black Non Fibrous Heterogeneous

Ashed71954477PLM_29

Other 100%

None Detected 29 - B

6" Black cove base w/ mastic mastic

Brown Non Fibrous Heterogeneous

Dissolved71954477PLM_78

Other 100%

None Detected 30 - A

4" Black cove base w/ mastic cove base

Black Non Fibrous Heterogeneous

Ashed71954477PLM_30

Other 100%

None Detected 30 - B

4" Black cove base w/ mastic mastic

Tan Non Fibrous Heterogeneous

Dissolved71954477PLM_79

Other 100%

None Detected 31 - A

4" Black cove base w/ mastic cove base

Black Non Fibrous Heterogeneous

Ashed71954477PLM_31

Other 100%

None Detected 31 - B

4" Black cove base w/ mastic mastic

Tan Non Fibrous Heterogeneous

Dissolved71954477PLM_80

Other 100%

None Detected

Ceiling tile Gray Fibrous Heterogeneous

Ashed71954477PLM_32

Cellulose Fiber Glass

Other 60% 20%

20%

None Detected

Ceiling tile Gray Fibrous Heterogeneous

Ashed71954477PLM_33

Cellulose Fiber Glass

Other 60% 20%

20%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

None Detected

1"x-3" Mudded pipe fitting Gray Non Fibrous Heterogeneous

Crushed71954477PLM_34

Cellulose Fiber Glass

Other 10% 10%

80%

None Detected

1"x-3" Mudded pipe fitting Gray Non Fibrous Heterogeneous

Crushed71954477PLM_35

Cellulose Fiber Glass

Other 10% 10%

80%

None Detected

3"-6" Mudded pipe fitting Gray Non Fibrous Heterogeneous

Crushed71954477PLM_36

Cellulose Fiber Glass

Other 10% 10%

80%

None Detected

Grey end cap mastic White Non Fibrous Heterogeneous

Ashed71954477PLM_37

Fiber Glass Other 10% 90%

None Detected

Grey end cap mastic White Non Fibrous Heterogeneous

Ashed71954477PLM_38

Fiber Glass Other 10% 90%

None Detected

Worm & fissure old style ceiling tile

Gray Fibrous Heterogeneous

Ashed71954477PLM_39

Cellulose Fiber Glass

Other 60% 20%

20%

None Detected

Worm & fissure old style ceiling tile

Gray Fibrous Heterogeneous

Ashed71954477PLM_40

Cellulose Fiber Glass

Other 60% 20%

20%

None Detected

Random size hole new style ceiling tile

Gray Fibrous Heterogeneous

Ashed71954477PLM_41

Cellulose Fiber Glass

Other 60% 20%

20%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

None Detected

Random size hole new style ceiling tile

Gray Fibrous Heterogeneous

Ashed71954477PLM_42

Cellulose Fiber Glass

Other 60% 20%

20%

None Detected

Metal duct insulation White Fibrous Heterogeneous

Ashed71954477PLM_43

Cellulose Other 80% 20%

None Detected

Metal duct insulation White Fibrous Heterogeneous

Ashed71954477PLM_44

Cellulose Other 80% 20%

None Detected

6"x12" Mudded pipe fitting Gray Non Fibrous Heterogeneous

Crushed71954477PLM_45

Cellulose Fiber Glass

Other 10% 10%

80%

None Detected 46 - A

Plaster wall finish

White Non Fibrous Heterogeneous

Crushed71954477PLM_46

Other 100%

None Detected 46 - B

Plaster wall base

Gray Non Fibrous Heterogeneous

Crushed71954477PLM_81

Other 100%

None Detected 47 - A

Plaster wall finish

White Non Fibrous Heterogeneous

Crushed71954477PLM_47

Other 100%

None Detected 47 - B

Plaster wall base

Gray Non Fibrous Heterogeneous

Crushed71954477PLM_82

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

3% Chrysotile

48 - A White & beige mottle 12"x12" floor tile w/ mastic tile

Gray Non Fibrous Heterogeneous

Dissolved71954477PLM_48

Other 97%

4% Chrysotile

48 - B White & beige mottle 12"x12" floor tile w/ mastic mastic

Black Non Fibrous Heterogeneous

Dissolved71954477PLM_83

Other 96%

Not Analyzed 49 - A

White & beige mottle 12"x12" floor tile w/ mastic tile

71954477PLM_49

Not Analyzed 49 - B

White & beige mottle 12"x12" floor tile w/ mastic mastic

71954477PLM_84

None Detected 50 - A

4" Grey cove base w/ mastic cove base

Gray Non Fibrous Heterogeneous

Ashed71954477PLM_50

Other 100%

None Detected 50 - B

4" Grey cove base w/ mastic mastic

Cream Non Fibrous Heterogeneous

Dissolved71954477PLM_85

Other 100%

None Detected 51 - A

4" Grey cove base w/ mastic cove base

Gray Non Fibrous Heterogeneous

Ashed71954477PLM_51

Other 100%

None Detected 51 - B

4" Grey cove base w/ mastic mastic

Cream Non Fibrous Heterogeneous

Dissolved71954477PLM_86

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

None Detected

White end cap mastic Gray Non Fibrous Heterogeneous

Crushed71954477PLM_52

Other 100%

None Detected

White end cap mastic Gray Non Fibrous Heterogeneous

Crushed71954477PLM_53

Cellulose Fiber Glass

Other 10% 10%

80%

None Detected

Orange end cap mastic Gray Non Fibrous Heterogeneous

Crushed71954477PLM_54

Cellulose Fiber Glass

Other 10% 10%

80%

None Detected

Orange end cap mastic Gray Non Fibrous Heterogeneous

Crushed71954477PLM_55

Cellulose Fiber Glass

Other 10% 10%

80%

None Detected

White mastic on pipe insul.

White Non Fibrous Heterogeneous

Ashed71954477PLM_56

Cellulose Other 10% 90%

None Detected

White mastic on pipe insul.

White Non Fibrous Heterogeneous

Ashed71954477PLM_57

Cellulose Other 10% 90%

None Detected

Off white end cap mastic Gray Non Fibrous Heterogeneous

Ashed71954477PLM_58

Other 100%

None Detected

Off white end cap mastic White Non Fibrous Heterogeneous

Ashed71954477PLM_59

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

None Detected

Random nick & hole ceiling tile

Gray Fibrous Heterogeneous

Ashed71954477PLM_60

Cellulose Fiber Glass

Other 60% 20%

20%

None Detected

Random nick & hole ceiling tile

Gray Fibrous Heterogeneous

Ashed71954477PLM_61

Cellulose Fiber Glass

Other 60% 20%

20%

None Detected

Drywall & mud mud only

White Non Fibrous Heterogeneous

Crushed71954477PLM_62

Other 100%

None Detected

Drywall & mud drywall only

Gray Non Fibrous Heterogeneous

Crushed71954477PLM_63

Cellulose Other 10% 90%

None Detected

Black painted wall plaster Gray Non Fibrous Heterogeneous

Crushed71954477PLM_64

Other 100%

None Detected

Black painted wall plaster Gray Non Fibrous Heterogeneous

Crushed71954477PLM_65

Other 100%

None Detected 66 - A

2" Black cove base w/ mastic cove base

Black Non Fibrous Heterogeneous

Ashed71954477PLM_66

Other 100%

None Detected 66 - B

2" Black cove base w/ mastic mastic

Brown Non Fibrous Heterogeneous

Dissolved71954477PLM_87

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

Date Received: 11/17/2020

Lab Order ID: 71954477

None Detected 67 - A

2" Black cove base w/ mastic cove base

Black Non Fibrous Heterogeneous

Ashed71954477PLM_67

Other 100%

None Detected 67 - B

2" Black cove base w/ mastic mastic

Brown Non Fibrous Heterogeneous

Dissolved71954477PLM_88

Other 100%

None Detected 68 - A

Burlap floor tile w/ mastic burlap

Tan Fibrous Heterogeneous

Ashed71954477PLM_68

Cellulose Other 90% 10%

None Detected 68 - B

Burlap floor tile w/ mastic mastic

Brown Non Fibrous Heterogeneous

Dissolved71954477PLM_89

Other 100%

None Detected 69 - A

Burlap floor tile w/ mastic burlap

Tan Fibrous Heterogeneous

Ashed71954477PLM_69

Cellulose Other 90% 10%

None Detected 69 - B

Burlap floor tile w/ mastic mastic

Brown Non Fibrous Heterogeneous

Dissolved71954477PLM_90

Other 100%

None Detected

Drywall & mud mud only

White Non Fibrous Heterogeneous

Crushed71954477PLM_70

Other 100%

None Detected

Drywall & mud drywall: none detect; mud:

none detect

Gray, White Non Fibrous Heterogeneous

Crushed71954477PLM_71

Cellulose Other 10% 90%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Summers 164.59 Clarksburg Courthouse Clarksburg, WVProject:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Tim Coleman Jeff Danchenko Mike Derdeyn

Attn:Customer: AERO EH&S Inc.

10310-B Baltimore National Pike Ellicott City, MD 21042

Analysis ID: 71954477_PLM

Date Reported: 11/20/2020

3% Chrysotile

72 - A Beige mottle old style 12x12 floor tile w/ mastic tile

Gray Non Fibrous Heterogeneous

Dissolved71954477PLM_72

Other 97%

5% Chrysotile

72 - B Beige mottle old style 12x12 floor tile w/ mastic mastic

Black Non Fibrous Heterogeneous

Dissolved71954477PLM_91

Other 95%

Not Analyzed 73 - A

Beige mottle old style 12x12 floor tile w/ mastic tile

71954477PLM_73

Not Analyzed 73 - B

Beige mottle old style 12x12 floor tile w/ mastic mastic

71954477PLM_92

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

BULK ASBESTOS SAMPLE SHEET

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1031 OB BALTIMORE NATIONAL PIKE

ELLICOTT CITY, MD 21 042

TEL: (41 0) 480-3636 FAX: (41 0) 480-3637

Results Needed By:

Inspectors: T1~ Co~ , 'Jc..f+ ~1,-,,,( b\-..o ime

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Client/Job Number: ::?wl'V\fll't,(;> J b L/ . S-9 Project Name: C.t,,~., I)()'? Co\$"~ "'-cu~

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