AMENDMENT 0006-MBW Q6 Hazmat Report.pdf

WORK ORDER NO. 1700167

Contract No. N40080-18-D-0004

HAZMAT REPORT

October/15/2021

MBW QUARTERS 6 RENOVATION

Marine Barracks Washington – Washington, DC

NAVFAC Public Works Department

PREPARED FOR:

MTFA Architecture

3200 Lee Highway Arlington, Virginia 22207

UNCLASSIFIED

6625 Selnick Drive, Suite A, Elkridge MD, 21045 (410) 540-8700 p (410) 579-1685 f www.tideh2o.net

September 30, 2021

Alex Zuniga, Associate Via e-mail: alexz@mtfa.net Project Manager MTFA Architecture 3200 Lee Highway, Arlington, Virginia 22207

Re: Government Officer Quarters 6 Renovation Marine Barracks Washington (MBW) 8th & I Street SE, Washington DC MTFA Project Number: 21027.00 Tidewater Project No.: 5067-064

Dear Mr. Zuniga, Tidewater, Inc. (Tidewater) performed a Hazardous Materials Survey (Asbestos-containing Materials (ACM), Lead-based Paint (LBP), and other potentially regulated materials (ORM) survey) for the Government Officer Quarters 6 located at Marine Barracks Washington (MBW), 8th & I Street SE, Washington DC. The survey was conducted to determine the extent and approximate locations of hazardous materials within the building to facilitate renovation of the Government Officer Quarters 6.

The survey was completed in compliance with the Asbestos Hazard Emergency Response Act (AHERA), the National Emission Standard for Hazardous Air Pollutants (NESHAP), the Occupational Safety and Health Administration (OSHA), and the Environmental Protection Agency (EPA) guidelines and regulations.

In addition to the field survey, Tidewater’s Scope of Work included the review of existing hazardous material survey reports for the Government Officer Quarters 6. Data and conclusions utilized by Tidewater from these 3rd Party reports are assumed to be accurate.

Existing Documentation

MTFA provided Tidewater with copies of the following existing reports:

REPORT REGARDIND THE HAZARDOUS MATERIAL SURVEY FOR THE

QUARTERS SIX RESTORATION AND REPAIRS TO BE PERFORMED AT THE

MARINE BARRACKS LOCATED AT 8th & I STREETS IN WASHINGTON D.C. ( December 28, 2009)

HISTORIC MATERIALS TESTING AND ANALYSIS BY CONSERVATIONS

SOLUTIONS, INC. (CSI) – December 22-23, 2009.

Information regarding hazardous materials from these two reports will be summarized in the sections below. Copies of the reports are included in Attachment F.

Asbestos-containing Materials Sampling Activities

Tidewater’s representative, Mr. Joel Kissoondath, an EPA-certified and Maryland-accredited Asbestos Inspector, conducted the MBW Quarters 6 survey on August 18, 2020 and September 19, 2020. Tidewater collected a total of fifty (50) representative bulk samples of identified suspect building materials from accessible areas in Quarters 6. On September 14, 2021, Tidewater’s representative, Ms. Meneka Rodrigo, revisited the MBW Quarters 6 building to collect roof samples from the roof of the third level of the Quarters 6. Additional fourteen (14) bulk samples of roofing materials were collected on September 14, 2021.

The materials sampled during the survey included: 12” x 12” floor tile (various) and associated mastics, White 1’ x 1’ ceiling tile, 9” x 9” floor tile and black mastic, grey duct seam sealant, end cap mastic/seam sealant of fiberglass insulated domestic water piping, cove base mastic glue, hard plaster walls, interior door glazing compound, interior window caulking, interior door caulking, sealant on exterior siding/trim, exterior door caulking, exterior window caulking, roofing felt paper associated with slate roof, roof samples with layers of gypsum board, field membrane, mastic sealants associated with the roof.

Upon completion of sampling activities, Tidewater delivered the collected samples to EMSL Analytical, Inc., of Beltsville, Maryland, an independent laboratory accredited by the National Institute of Standards and Technology (NIST) and a successful participant in the National Voluntary Laboratory Accreditation Program (NVLAP). Rigorous chain-of-custody guidelines were followed throughout to ensure proper handling and delivery of the samples. The samples were analyzed via Polarized Light Microscopy (PLM) techniques using the current EPA method

EPA/600/R-93/116.

Please refer to Table 3 at the end of this report for analytical results of the materials analyzed.

Current federal and District of Columbia regulations define an asbestos-containing material as containing greater than 1% asbestos. Based on the laboratory analytical results, none of the fifty

(50) samples collected were determined to contain greater than (>) 1% asbestos by PLM and are therefore not ACMs.

However, according to the historical information and data provided by the Building Owner, the following asbestos-containing materials are present in the Quarters 6 building:

TABLE 1: ASBESTOS CONTAINING BUILDING MATERIALS

August 19, 2020 and September 18, 2020 Marine Barracks Washington (MBW) Government Officer Quarters 6

Location Description

NESHAP

Category

Condition

Approximate Quantity

At fan coil units and behind wet walls in the kitchen and bathrooms

Assumed Pipe and Fitting insulation behind walls

RACM≥

(historical data)

N/A

1,300 Linear Feet

Hallway #4 and #5, Kitchen #1 and Pantry #1

Assumed Linoleum under ceramic tile

Category II Non-friable

N/A 1,200 Square

Feet

Location Description

NESHAP

Category

Condition

Approximate Quantity

Stairways #5 and #6 Assumed stair tread mastic

Category II Non-friable

Good 120 Square

Feet

Note: the area #s assigned to each area are from the Department of Navy Report dated January 1996 (Drawing dated 11/21/1995).

Note: The 9” x 9” brown floor tile and associated mastic documented in the AMA report dated 12-28-2009, as present throughout the basement and Bathroom #2, Storage #2, Living Room #3 in the Cabana portion of the building, was not observed during the Tidewater field inspection.

During the survey the following materials were not sampled, but are presumed to be asbestos-containing:

Assumed Pipe and Fitting insulation behind walls;

Assumed Linoleum under ceramic tile; and Assumed stair tread mastic.

The Laboratory Report and Chain of Custody are included in Attachment A. A site diagram depicting sample locations is included as Attachment C. Select photographs are included as Attachment D. Copies of Tidewater’s applicable certifications/licenses are included in Attachment E.

Although no other asbestos-containing materials were identified during this survey, additional suspect materials may be discovered during repair and/or renovation activities. Any other suspect materials which may be uncovered during future demolition or renovation activities which have not been previously sampled for asbestos content should be considered asbestos-containing until sampling and analysis determines otherwise.

Lead-based Paint Testing

Tidewater’s representative, Mr. Joel Kissoondath, a District of Columbia-licensed Lead Risk Assessor, completed the Lead-based Paint survey of the MBW Quarters 6 Building on August 18, and September 19, 2020. Testing for lead content in paints and finishes was performed using a Niton X-Ray Fluorescence (XRF) Spectrum Analyzer. This instrument detects levels of lead in a component by reading and analyzing the fluorescence emanating from a surface when exposed to small amounts of radiation. XRF readings are reported in milligrams per square centimeter (mg/cm2), a mass per area reading.

Lead-based paint (LBP) is defined as paint containing more than 1.0 mg/cm2 lead by federal EPA and HUD regulations. Paint containing more than 1.0 mg/cm2 lead by District of Columbia is regulated as LBP.

A total of 268 XRF readings, including sixteen (16) calibration readings, were recorded during the Quarters 6 survey. Based on the XRF data collected during this survey, the following components were determined to be coated with lead-based paint:

Beige painted wood window sill (intact) in the Basement Laundry Room;

Beige painted wood window apron (intact) in the Basement Laundry Room;

Beige painted wood window case (intact) in the Basement Laundry Room;

White painted wood wall panel (deteriorated) in the Basement Electrical Room;

White painted wood casing (deteriorated) in the Basement Electrical Room;

White painted wood door (intact) in the Basement Storage Room 2;

White painted wood door casing (intact) in the Basement Storage Room 2;

White painted wood door jamb (intact) in the Basement Storage Room 2;

White ceramic tile wall (intact) in the Basement Bathroom, side A;

White ceramic tile wall (intact) in the Basement Bathroom, side D;

White wood door (intact) in the Basement Bathroom, side A;

White wood door casing (intact) in the Basement Bathroom, side A;

White wood door (intact) in the Basement Storage Room 3, side A;

White painted brick wall (deteriorated) in the Basement Hallway, Side C;

White wood door casing (intact) in the Basement Hallway, side B;

White painted wood stair baluster (intact) in the Basement Hallway, side B;

White painted wood stair stringer (intact) in the Basement Hallway, side B;

Black painted wood stair stringer (deteriorated) in the Basement Hallway, side B;

Black painted wood stair tread (deteriorated) in the Basement Hallway, side B;

Black painted wood stair riser (deteriorated) in the Basement Hallway, side B;

White painted wood stair wall (intact) in the Basement Hallway, side B;

White painted wood closet door (intact) in the Basement Hallway, side B;

White painted wood baseboard (deteriorated) in the Basement Hallway, side B;

White painted metal door (deteriorated) in the Basement Mechanical Room;

White painted metal door casing (intact) in the Basement Mechanical Room;

White painted brick wall (intact) in first floor Foyer 1, side A;

White painted brick wall (intact) in first floor Foyer 1, side C;

Green ceramic floor (intact) in first floor Foyer 1;

White concrete window sill (intact) in first floor Foyer 1, side C;

White painted wood door casing (intact) in first floor Foyer 1, side C;

White painted wood door jamb (intact) in first floor Foyer 1, side C;

Green concrete door stoop (deteriorated) in first floor Foyer 1;

Beige painted drywall (intact) in first floor Living Room, side A;

Beige painted plaster wall (intact) in first floor Living Room, side B;

Light Grey painted wall-lower (intact) in firs floor Living Room, side A;

White painted wood chair rail (intact) in first floor Living Room, side D;

White painted wood shelf (intact) in first floor Living Room, side D;

White painted wood fireplace frame (intact) in first floor Living Room;

White painted wood baseboard (intact) in first floor Living Room, side C;

White painted wood door frame (intact) in first floor Foyer 2, side C;

Olive painted plaster wall (intact) in first floor Lounge Room, side A;

Olive painted plaster wall (intact) in first floor Lounge Room, side C;

Olive painted plaster wall (intact) in first floor Lounge Room, side D;

White painted wood wall-lower (intact) in first floor Lounge Room, side B;

White painted wood wall-lower (intact) in first floor Lounge Room, side C;

Cream painted plaster wall (intact) in first floor Dining Room, side A;

White painted wood door (intact) in first floor Kitchen;

Beige painted wood-panel ceiling (intact) in first floor Foyer 4;

White painted plaster arch ceiling (intact) in first floor hallway;

Beige painted wood column (intact) in first floor hallway;

White painted wood stair riser (intact) in first floor hallway;

White painted wood stair stringer (intact) in first floor hallway;

White painted wood stair baluster (intact) in first floor hallway;

White painted wood-panel wall (intact) in first floor hallway, side B;

White painted wood door (intact) in second floor sitting room, side A;

White painted wood door casing (intact) in second floor sitting room, side A;

White painted wood trim (intact) in second floor sitting room, side A;

White painted wood exterior door (deteriorated) in second floor sitting room, side A;

White painted crown molding (intact) in second floor hallway, side D;

Brown wallpaper (intact) in third floor bath 7, side C;

Yellow painted plaster wall (intact) in third floor bedroom 8, side B;

Yellow painted drywall (intact) in third floor bedroom 8, side D;

White painted concrete door frame (intact) Ground floor exterior, side C;

Grey painted concrete stair riser (deteriorated) in Basement exterior, Grey painted concrete floor (deteriorated) in Basement exterior;

White concrete window sill (intact), Ground floor exterior; side B;

White metal window lintel (deteriorated), Ground floor exterior, side B;

White concrete skirt board (intact), Ground floor exterior, side B;

Olive painted hard plaster wall (intact), second floor, stairway (all sides);

White painted wood-panel wall-lower (intact), second floor, stairway (all sides);

White painted plaster ceiling (intact), second floor, stairway;

White painted wood baseboard (intact), second floor, stairway;

White painted wood door casing (intact), second floor, stairway;

White painted wood newel post (intact), second floor, stairway;

Beige painted wood trim (intact), second floor, exterior; and White painted metal door frame (intact), third floor, exterior.

Tidewater’s Lead Inspector/Risk Assessor inspected and tested all accessible components in the building. However, additional lead-based painted/lead-containing materials may be present in concealed areas of the building structure.

Other Regulated Materials (ORM)

Tidewater conducted a visual inspection of accessible areas in the Quarters 6 for the presence of potentially regulated universal wastes (UWs), polychlorinated biphenyl-containing (PCB-containing) wastes, and other potentially regulated materials. Per 40 CFR 261 Subpart C, UWs include any of the following six wastes that have at least one hazardous characteristic: batteries, pesticides, thermostats, cathode ray tubes, mercury-containing devices and mercury-containing lamps (e.g., fluorescent tubes and incandescent bulbs.)

Tidewater was unable to visually inspect suspect PCB-containing light ballast due to accessibility and safety concerns. Ballasts not labeled as non-PCB should be assumed to contain PCBs. Ballasts labeled as non-PCB should be assumed to contain either di-2-ethylhexyl phthalate (DEHP) or oil.

The ORMs encountered during the Quarters 6 Building survey are summarized in the table below:

TABLE 2: Other Regulated Materials

August 19, 2020 and September 18, 2020

Building Component Regulated Material

Estimated Number of

Components

Estimated Number of

Elements per Component

Total Estimated Number of Elements

Fixtures w/ One 48” Fluorescent / Mercury vapor lamps

Mercury

1 Source 7 Tube Bulbs

Suspect PCBs 1 Ballast 7 Ballasts

Fixtures w/ Two 48” Fluorescent / Mercury vapor lamps

Mercury

2 Source 32 tube Bulbs

Suspect PCBs 1 Ballast 2 Ballasts

Two 12” Tube Fluorescent Fixture / Mercury vapor lamps

Mercury

3 Sources 21 Tube Bulbs

Suspect PCBs 2 Ballast 14 Ballasts

Circular Fixtures w/ 3 Bulbs

Bulbs 8 3 Bulbs 24 bulbs

The following miscellaneous, potentially regulated chemicals were also identified within the building:

Refrigerants associated with HVAC equipment and air conditioning units; and Smoke detectors, Exit Signs, etc.

Recommendations

Asbestos-containing Materials

Based on the results of our MBW Quarters 6 survey and a review of existing information for the Building, Tidewater makes the following recommendations:

Identified asbestos-containing materials shall be removed by a District of Columbia-licensed asbestos abatement contractor prior to the start of any renovation or demolition activity that may disturb such materials.

All presumed asbestos-containing materials shall be removed by a licensed abatement contractor prior to the start of any activity that may disturb such materials. If additional data is gained that refutes the presumption that these materials are asbestos-containing, the materials may be disposed of as general construction waste.

It is recommended that technical specifications be developed to ensure that any scheduled asbestos abatement work is conducted in accordance with NESHAP and OSHA asbestos standards. An asbestos abatement contractor, licensed in the District of Columbia, is required to perform the removal of any ACMs.

An accredited consultant shall be contracted to provide oversight and air monitoring during asbestos remediation. Daily and final air clearance monitoring shall be performed by a consultant industrial hygienist (IH) who will be responsible for maintaining daily logs and air sampling data sheets.

Lead-based Paint

OSHA regulates all activities that disturb lead-based paint. All construction work, including renovation or demolition of buildings containing lead is regulated by the OSHA 29 CFR 1926.62 Interim Final Lead Regulation. OSHA regulations require training, personal protective equipment, and personal air monitoring for workers when conducting activities that disturb lead-based paint/lead-containing materials. Lead-based paint abatement is not required prior to the renovation activity. However, any waste streams containing painted building components should be tested via Environmental Protection Agency’s (EPA) hazardous waste characterization procedure (Toxicity Characteristic Leaching Procedure (TCLP)) and be disposed of accordingly.

Prior to disposal, representative samples should be collected for analysis using TCLP to determine whether the debris is to be treated as demolition or hazardous waste. The hazardous waste criteria for lead waste is established under the Federal Resource Conservation and Recovery Act (RCRA), Subtitle C, as 5.0 milligrams per liter (mg/L) measured with TCLP as listed in CFR 40 Part 261. The contractor shall be responsible for proper disposal of hazardous waste that fails the TCLP test. Metal components coated with LBP which will be recycled as scrap metal would not be required to be sampled prior to removal from the site.

To minimize the potential for exposure to lead, the following work practices should be avoided when disturbing LBP or lead-containing materials:

Do NOT use open flame burning or torching;

Do NOT use machine sanding or grinding without a HEPA vacuum exhaust;

Do NOT use uncontained hydro-blasting or high-pressure washing;

Do NOT use abrasive blasting without HEPA vacuum exhaust;

Do NOT use heat guns operating above 1,100°F; and Do NOT use dry scraping or sanding.

During the survey of Building B466 low levels of lead (0.1 mg/cm2 - 1.0 mg/cm2) were detected on several surfaces. Although these readings are below the District of Columbia threshold for the definition of lead paint (1.0 mg/cm2), dry sanding, torch cutting, or scraping of these surfaces may release significant quantities of lead dust. Therefore, in compliance to OSHA’s Lead in Construction standard (29 CFR 1926.62, Appendix B), should renovation or demolition activities impact these substrates (or the other substrates determined to be a lead-based paint/lead-containing material) in such a manner that lead dust is generated, these areas will require air monitoring to determine OSHA limits for renovation are not exceeded.

Other Regulated Materials

Universal and other potentially regulated wastes should be separated from other waste streams and disposed of in accordance with all applicable federal, state, and local regulations.

Limitations

This report has been prepared to assist MTFA Architecture in determining the presence and extent of Hazardous Materials (Asbestos-containing Materials (ACM), Lead-based Paint (LBP), and other potentially regulated materials (ORM)) in Government Officer Quarters 6 located at Marine Barracks Washington (MBW) in Washington D.C.

Tidewater’s Scope of Work included the review of existing hazardous material survey reports for the Quarters 6 Building. Data and conclusions utilized by Tidewater from these 3rd Party reports are assumed to be accurate.

This report only describes the conditions present at the time of our sampling/testing, and the results presented here are limited, based upon the information available at the time of our survey. This report is prepared for the sole benefit of MTFA Architecture and its affiliates and may not be relied upon by any other person or entity without the written authorization of Tidewater, Inc.

We appreciate the opportunity to assist you with this project. If you have any questions or require any additional information, please do not hesitate to contact us at 410-540-8700.

Sincerely, Tidewater, Inc.

Meneka Rodrigo Project Manager

Attachments: Attachment A – Laboratory Results and Chain of Custody Attachment B – Lead-Based Paint Inspection XRF Data Sheet Attachment C – Site Diagram Attachment D – Select Photographs Attachment E – Applicable Certifications/Licenses Attachment F – Existing Documentation

TABLE 3: SUMMARY OF BULK SAMPLING ANALYSES FOR ASBESTOS

August 18, 2020 and September 19, 2020

September 14, 2021

Sample ID Material Description Location Asbestos

B01-A-Floor Tile Floor tile, 12” x 12”, Light Gray Basement Level, Laundry Room

NAD

B01-A-Mastic Mastic associated w/ Floor Tile, 12"x 12", Light Gray

Basement Level, Laundry Room

NAD

B01-B-Floor Tile Floor tile, 12” x 12”, Light Gray Basement Level, Storage Room 1

NAD

B01-B-Mastic Mastic associated w/ Floor Tile, 12"x 12", Light Gray

Basement Level, Storage Room 1

NAD

B01-C-Floor Tile Floor tile, 12” x 12”, Light Gray Basement Level, Office Room 1

NAD

B01-C-Mastic Mastic associated w/ Floor Tile, 12"x 12", Light Gray

Basement Level, Office Room 1

NAD

B01-D-Floor Tile Floor tile, 12” x 12”, Light Gray Basement Level, Hallway East

NAD

B01-D-Mastic Mastic associated w/ Floor Tile, 12"x 12", Light Gray

Basement Level, Hallway East

NAD

B01-E-Floor Tile Floor tile, 12” x 12”, Light Gray Basement Level, Hallway West

NAD

B01-E-Mastic Mastic associated w/ Floor Tile, 12"x 12", Light Gray

Basement Level, Hallway West

NAD

B02-A-Floor Tile Floor tile, 12” x 12”, Dark Gray Basement Level, Laundry Level

NAD

B02-A-Mastic Mastic associated w/ Floor tile, 12” x 12”, Dark Gray

Basement Level, Laundry Level

NAD

B02-B-Floor Tile Floor tile, 12” x 12”, Dark Gray Basement Level, Storage Room 1

NAD

B02-B-Mastic Mastic associated w/ Floor tile, 12” x 12”, Dark Gray

Basement Level, Storage Room 1

NAD

B02-C-Floor Tile Floor tile, 12” x 12”, Dark Gray Basement Level, Office Room 1

NAD

B02-C-Mastic Mastic associated w/ Floor tile, 12” x 12”, Dark Gray

Basement Level, Office Room 1

NAD

B02-D-Floor Tile Floor tile, 12” x 12”, Dark Gray Basement Level, Hallway East

NAD

B02-D-Mastic Mastic associated w/ Floor tile, 12” x 12”, Dark Gray

Basement Level, Hallway East

NAD

B02-E-Floor Tile Floor tile, 12” x 12”, Dark Gray Basement Level, Hallway West

NAD

B02-E-Mastic Mastic associated w/ Floor tile, 12” x 12”, Dark Gray

Basement Level, Hallway West

NAD

B03-A White 1’ x 1’ Ceiling tile, with holes Basement Level, Hallway East

NAD

B03-B White 1’ x 1’ Ceiling tile, with holes Basement Level, Hallway Center

NAD

B03-C White 1’ x 1’ Ceiling tile, with holes Basement Level, Hallway West

NAD

B04-A Floor tile, 9” x 9”, green Basement Level, Storage Room 1 Closet

NAD

B05-A Black mastic associated w/ Floor tile, 9” x 9”, green

Basement Level, Storage Room 1 Closet

NAD

B06-A Gray duct seam sealant, on bare metal duct

Basement Level, Storage Room 3

NAD

B06-B Gray duct seam sealant, on bare metal duct

Basement Level, Storage Room 3

NAD

B07-A White endcap sealant on fiberglass insulated pipes

Basement Level, Electrical Closet

NAD

B07-B White endcap sealant on fiberglass insulated pipes

Basement Level, Boiler Room

NAD

B07-C White endcap sealant on fiberglass insulated pipes

Basement Level, Hallway West

NAD

B08-A Tan cove base glue Basement Level, Hallway East

NAD

B08-B Tan cove base glue Basement Level, Hallway Office 1

NAD

B08-C Tan cove base glue Basement Level, Hallway West

NAD

B09-A Beige plaster wall Basement Level, Laundry Room

NAD

B09-B Beige plaster wall Basement Level, Electrical Room

NAD

B09-C Beige plaster wall Basement Level, Hallway West

NAD

B09-D Beige plaster wall Basement Level, Hallway East

NAD

B09-E Beige plaster wall Basement Level, Entry Office 1

NAD

B09-F Beige plaster wall Third Floor, Bedroom 8 Closet

NAD

B09-G-Skim Coat

Beige plaster wall Third Floor, Closet NAD

B09-G-Rough Coat

Rough coat associated with beige plaster wall

Third Floor, Closet NAD

B10-A White door glazing, exterior Sitting Room, Exterior NAD

B10-B White door glazing, exterior Sitting Room, Exterior NAD

B11-A White window caulking, exterior Building Exterior NAD

B11-B White window caulking, exterior Building Exterior NAD

B12-A White door caulking, exterior Building Exterior NAD

B12-B White door caulking, exterior Building Exterior NAD

Q6 R01 A Siding / trim sealant, gray/white Second Floor, exterior NAD

Q6 R01 B Door caulking, white, exterior Second Floor, exterior NAD

Q6 R01 C Window caulking, white, exterior Third Floor, exterior NAD

121520-Q6-

TC01

Black Roofing Felt Paper Slate Roof, under eave NAD

121520-Q6-

TC02

Black Roofing Felt Paper Slate Roof, under eave NAD

91321-Q6-01A Gypsum covered board – Test Cut 1 Third Floor, Roof NAD

91321-Q6-02A Rubberized Asphalt Sheet Membrane applied directly to wood plant – Test Cut

Third Floor Roof NAD

91321-Q6-03A- Coverboard Facer

Field Membrane and Adhesive and coverboard Facer – Test Cut 1

Third Floor Roof NAD

91321-Q6-03A- Field Membrane

Field Membrane and Adhesive and coverboard Facer – Test Cut 1

Third Floor Roof NAD

91321-Q6-03A- Adhesive

Field Membrane and Adhesive and coverboard Facer – Test Cut 1

Third Floor Roof NAD

91321 -Q6-03A- Edge Stripping

Field Membrane and Adhesive and coverboard Facer – Test Cut 1

Third Floor Roof NAD

91321-Q6-04A Metal Roof Panel – Aluminum – Test Cut

Third Floor Roof NAD

91321-Q6-05A Metal Ridge Panel – Tar – Test Cut 2 Third Floor Roof NAD

91321-Q6-06A Asphalt Roofing Felt – Test Cut 2 Third Floor Roof NAD

91321-Q6-07A

Rosin Paper Layer – Test Cut 2 Third Floor Roof NAD

91321-Q6-08A

Gray / Black Mastic Sealant on Attic vent

Third Floor Roof NAD

91321-Q6-09A Gray Mastic Sealant on duct exhaust vent

Third Floor Roof NAD

91321-Q6-10A Black mastic on dish mount Third Floor Roof NAD

91321-Q6-11A Green seam sealant on bare metal duct Duct system in the Attic NAD

Attachment A

Laboratory Results and Chain of Custody

EMSL Analytical, Inc.

10768 Baltimore Avenue Beltsville, MD 20705

Tel/Fax: (301) 937-5700 / (301) 937-5701 http://www.EMSL.com / beltsvillelab@emsl.com

192008244EMSL Order:

TIDE50Customer ID:

Customer PO:

Project ID:

Attention: Phone:Meneka Rodrigo (443) 691-6749

Fax:Tidewater, Inc. (410) 997-8713

Received Date:6625 Selnick Drive 08/20/2020 4:26 PM

Analysis Date:Suite A 08/21/2020 - 08/24/2020

Collected Date:Elkridge, MD 21075 08/20/2020

Project: MBW CRP Q6

Test Report: Asbestos Analysis of Bulk Materials via EPA 600/R-93/116 Method using

Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous % Type

Non-Asbestos Asbestos

B01-A-Floor Tile

192008244-0001

Lt. Grey 12"x12" floor tile, Laundry Rm, Base

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

01HA:

B01-A-Mastic

192008244-0001A

Lt. Grey 12"x12" floor tile, Laundry Rm, Base

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

01HA:

B01-B-Floor Tile

192008244-0002

Lt. Grey 12"x12" floor tile, Store 1, Base

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

01HA:

B01-B-Mastic

192008244-0002A

Lt. Grey 12"x12" floor tile, Store 1, Base

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

01HA:

B01-C-Floor Tile

192008244-0003

Lt. Grey 12"x12" floor tile, Office 1, Base

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

01HA:

B01-C-Mastic

192008244-0003A

Lt. Grey 12"x12" floor tile, Office 1, Base

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

01HA:

B01-D-Floor Tile

192008244-0004

Lt. Grey 12"x12" floor tile, Hallway East

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

01HA:

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. 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. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA

600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample.

Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc. Beltsville, MD NVLAP Lab Code 200293-0

Initial report from: 08/24/2020 21:29:24

ASB_PLMwSigs_0007_0001 Printed:8/24/2020 9:29:29PM Page 1 of 8

Tel/Fax: (301) 937-5700 / (301) 937-5701 http://www.EMSL.com / beltsvillelab@emsl.com

192008244EMSL Order:

TIDE50Customer ID:

Customer PO:

Project ID:

Attention: Phone:Meneka Rodrigo (443) 691-6749

Fax:Tidewater, Inc. (410) 997-8713

Received Date:6625 Selnick Drive 08/20/2020 4:26 PM

Analysis Date:Suite A 08/21/2020 - 08/24/2020

Collected Date:Elkridge, MD 21075 08/20/2020

Project: MBW CRP Q6

Test Report: Asbestos Analysis of Bulk Materials via EPA 600/R-93/116 Method using

Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous % Type

Non-Asbestos Asbestos

B01-D-Mastic

192008244-0004A

Lt. Grey 12"x12" floor tile, Hallway East

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

01HA:

B01-E-Floor Tile

192008244-0005

Lt. Grey 12"x12" floor tile, Hallway West

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

01HA:

B01-E-Mastic

192008244-0005A

Lt. Grey 12"x12" floor tile, Hallway West

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

01HA:

B02-A-Floor Tile

192008244-0006

Dark Grey 12"x12" floor tile, Laundry Rm

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

02HA:

Suggest TEM/NOB

B02-A-Mastic

192008244-0006A

Dark Grey 12"x12" floor tile, Laundry Rm

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

02HA:

B02-B-Floor Tile

192008244-0007

Dark Grey 12"x12" floor tile, Store 1 Base

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

02HA:

Suggest TEM/NOB

B02-B-Mastic

192008244-0007A

Dark Grey 12"x12" floor tile, Store 1 Base

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

02HA:

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. 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. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA

600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample.

Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc. Beltsville, MD NVLAP Lab Code 200293-0

ASB_PLMwSigs_0007_0001 Printed:8/24/2020 9:29:29PM Page 2 of 8

Tel/Fax: (301) 937-5700 / (301) 937-5701 http://www.EMSL.com / beltsvillelab@emsl.com

192008244EMSL Order:

TIDE50Customer ID:

Customer PO:

Project ID:

Attention: Phone:Meneka Rodrigo (443) 691-6749

Fax:Tidewater, Inc. (410) 997-8713

Received Date:6625 Selnick Drive 08/20/2020 4:26 PM

Analysis Date:Suite A 08/21/2020 - 08/24/2020

Collected Date:Elkridge, MD 21075 08/20/2020

Project: MBW CRP Q6

Test Report: Asbestos Analysis of Bulk Materials via EPA 600/R-93/116 Method using

Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous % Type

Non-Asbestos Asbestos

B02-C-Floor Tile

192008244-0008

Dark Grey 12"x12" floor tile, Office 1 Base

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

02HA:

Suggest TEM/NOB

B02-C-Mastic

192008244-0008A

Dark Grey 12"x12" floor tile, Office 1 Base

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

02HA:

B02-D-Floor Tile

192008244-0009

Dark Grey 12"x12" floor tile, Hallway East

Base

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

02HA:

Suggest TEM/NOB

B02-D-Mastic

192008244-0009A

Dark Grey 12"x12" floor tile, Hallway East

Base

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

02HA:

B02-E-Floor Tile

192008244-0010

Dark Grey 12"x12" floor tile, Hallway West

Base

Gray

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

02HA:

Suggest TEM/NOB

B02-E-Mastic

192008244-0010A

Dark Grey 12"x12" floor tile, Hallway West

Base

Yellow

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

02HA:

B03-A

192008244-0011

White 1'x1' Ceiling tiles w/ holes, Hallway East

Gray/White/Various

Fibrous

Heterogeneous

None DetectedCellulose

MinWool

30%

30%

30%

10.0%

Perlite

Non-fibrous (Other)

03HA:

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. 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. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA

600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample.

Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc. Beltsville, MD NVLAP Lab Code 200293-0

ASB_PLMwSigs_0007_0001 Printed:8/24/2020 9:29:29PM Page 3 of 8

Tel/Fax: (301) 937-5700 / (301) 937-5701 http://www.EMSL.com / beltsvillelab@emsl.com

192008244EMSL Order:

TIDE50Customer ID:

Customer PO:

Project ID:

Attention: Phone:Meneka Rodrigo (443) 691-6749

Fax:Tidewater, Inc. (410) 997-8713

Received Date:6625 Selnick Drive 08/20/2020 4:26 PM

Analysis Date:Suite A 08/21/2020 - 08/24/2020

Collected Date:Elkridge, MD 21075 08/20/2020

Project: MBW CRP Q6

Test Report: Asbestos Analysis of Bulk Materials via EPA 600/R-93/116 Method using

Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous % Type

Non-Asbestos Asbestos

B03-B

192008244-0012

White 1'x1' Ceiling tiles w/ holes, Hallway Ctr

Gray/White/Various

Fibrous

Heterogeneous

None DetectedCellulose

MinWool

30%

30%

30%

10.0%

Perlite

Non-fibrous (Other)

03HA:

B03-C

192008244-0013

White 1'x1' Ceiling tiles w/ holes, Hallway

West

Gray/White/Various

Fibrous

Heterogeneous

None DetectedCellulose

MinWool

30%

30%

30%

10.0%

Perlite

Non-fibrous (Other)

03HA:

B04-A

192008244-0014

Green 9"x9" floor tile, Store 1 closet, Base

Green

Non-Fibrous

Homogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

04HA:

B05-A

192008244-0015

Black mastic (B04-A) Various/Black

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

05HA:

B06-A

192008244-0016

Grey duct seam sealant, Store 3, Base

Gray

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

06HA:

B06-B

192008244-0017

Grey duct seam sealant, Store 3, Base

Gray

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

06HA:

B07-A

192008244-0018

White end on cap on pipes, Elec. Closet, Base

White

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

07HA:

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. 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. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA

600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample.

Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc. Beltsville, MD NVLAP Lab Code 200293-0

ASB_PLMwSigs_0007_0001 Printed:8/24/2020 9:29:29PM Page 4 of 8

Tel/Fax: (301) 937-5700 / (301) 937-5701 http://www.EMSL.com / beltsvillelab@emsl.com

192008244EMSL Order:

TIDE50Customer ID:

Customer PO:

Project ID:

Attention: Phone:Meneka Rodrigo (443) 691-6749

Fax:Tidewater, Inc. (410) 997-8713

Received Date:6625 Selnick Drive 08/20/2020 4:26 PM

Analysis Date:Suite A 08/21/2020 - 08/24/2020

Collected Date:Elkridge, MD 21075 08/20/2020

Project: MBW CRP Q6

Test Report: Asbestos Analysis of Bulk Materials via EPA 600/R-93/116 Method using

Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous % Type

Non-Asbestos Asbestos

B07-B

192008244-0019

White end on cap on pipes, Boiler Rm, Base

White

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

07HA:

B07-C

192008244-0020

White end on cap on pipes, Hallway West, Base

White

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

07HA:

B08-A

192008244-0021

Tan cove base glue, Hallway East, Base

Tan/White/Various

Non-Fibrous

Heterogeneous

None Detected100.0% Non-fibrous (Other)

08HA:

B08-B

192008244-0022

Tan cove base glue, Hallway Office 1

Tan/White/Various

Non-Fibrous

Heterogeneous

None Detected100.0% Non-fibrous (Other)

08HA:

B08-C

192008244-0023

Tan cove base glue, Hallway West

Tan/White

Non-Fibrous

Heterogeneous

None Detected100.0% Non-fibrous (Other)

08HA:

B09-A

192008244-0024

Beige Plaster wall, Laundry Rm base

Gray/Various/Beige

Non-Fibrous

Heterogeneous

None Detected60%

40.0%

Quartz

Non-fibrous (Other)

09HA:

B09-B

192008244-0025

Beige Plaster wall, Ceiling Electric Rm, Base

Gray/Various/Beige

Non-Fibrous

Heterogeneous

None Detected60%

40.0%

Quartz

Non-fibrous (Other)

09HA:

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. 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. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA

600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample.

Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc. Beltsville, MD NVLAP Lab Code 200293-0

ASB_PLMwSigs_0007_0001 Printed:8/24/2020 9:29:29PM Page 5 of 8

Tel/Fax: (301) 937-5700 / (301) 937-5701 http://www.EMSL.com / beltsvillelab@emsl.com

192008244EMSL Order:

TIDE50Customer ID:

Customer PO:

Project ID:

Attention: Phone:Meneka Rodrigo (443) 691-6749

Fax:Tidewater, Inc. (410) 997-8713

Received Date:6625 Selnick Drive 08/20/2020 4:26 PM

Analysis Date:Suite A 08/21/2020 - 08/24/2020

Collected Date:Elkridge, MD 21075 08/20/2020

Project: MBW CRP Q6

Test Report: Asbestos Analysis of Bulk Materials via EPA 600/R-93/116 Method using

Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous % Type

Non-Asbestos Asbestos

B09-C

192008244-0026

Beige Plaster wall, Hallway West, Base

Gray/Various/Beige

Non-Fibrous

Heterogeneous

None Detected60%

40.0%

Quartz

Non-fibrous (Other)

09HA:

B09-D

192008244-0027

Beige Plaster wall, Hallway East, Base

White/Various/Beige

Non-Fibrous

Heterogeneous

None Detected5%

45%

50.0%

Quartz

Ca Carbonate

Non-fibrous (Other)

09HA:

B09-E

192008244-0028

Beige Plaster wall, Entry Office 1, Base

White/Various/Beige

Non-Fibrous

Heterogeneous

None Detected5%

45%

50.0%

Quartz

Ca Carbonate

Non-fibrous (Other)

09HA:

B09-F

192008244-0029

Beige Plaster wall, Closet Bed 8, 3rd Fl.

White/Various/Beige

Non-Fibrous

Heterogeneous

None Detected5%

45%

50.0%

Quartz

Ca Carbonate

Non-fibrous (Other)

09HA:

B09-G-Skim Coat

192008244-0030

Beige Plaster wall, Closet Wall, 3rd Fl.

White/Various/Beige

Non-Fibrous

Heterogeneous

None Detected5%

45%

50.0%

Quartz

Ca Carbonate

Non-fibrous (Other)

09HA:

B09-G-Rough Coat

192008244-0030A

Beige Plaster wall, Closet Wall, 3rd Fl.

Brown/Tan/Various

Fibrous

Homogeneous

None DetectedHair5% 60%

35.0%

Quartz

Non-fibrous (Other)

09HA:

B10-A

192008244-0031

White door glazing sitting rm EXT. side A

Tan/White

Non-Fibrous

Heterogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

10HA:

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. 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. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA

600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample.

Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc. Beltsville, MD NVLAP Lab Code 200293-0

ASB_PLMwSigs_0007_0001 Printed:8/24/2020 9:29:29PM Page 6 of 8

Tel/Fax: (301) 937-5700 / (301) 937-5701 http://www.EMSL.com / beltsvillelab@emsl.com

192008244EMSL Order:

TIDE50Customer ID:

Customer PO:

Project ID:

Attention: Phone:Meneka Rodrigo (443) 691-6749

Fax:Tidewater, Inc. (410) 997-8713

Received Date:6625 Selnick Drive 08/20/2020 4:26 PM

Analysis Date:Suite A 08/21/2020 - 08/24/2020

Collected Date:Elkridge, MD 21075 08/20/2020

Project: MBW CRP Q6

Test Report: Asbestos Analysis of Bulk Materials via EPA 600/R-93/116 Method using

Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous % Type

Non-Asbestos Asbestos

B10-B

192008244-0032

White door glazing sitting rm EXT. side A

Tan/White

Non-Fibrous

Heterogeneous

None Detected45%

55.0%

Ca Carbonate

Non-fibrous (Other)

10HA:

B11-A

192008244-0033

White window caulk, Exterior side A

White/Various

Non-Fibrous

Homogeneous

None Detected100.0% Non-fibrous (Other)

11HA:

B11-B

192008244-0034

White window caulk, Exterior side D

White/Various

Non-Fibrous

Heterogeneous

None Detected100.0% Non-fibrous (Other)

11HA:

B12-A

192008244-0035

White door caulk, Exterior side A

White/Various

Non-Fibrous

Heterogeneous

None Detected100.0% Non-fibrous (Other)

12HA:

B12-B

192008244-0036

White door caulk, Exterior side B

White/Various

Non-Fibrous

Heterogeneous

None DetectedCellulose

MinWool

30%

30%

30%

10.0%

Perlite

Non-fibrous (Other)

12HA:

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. 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. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA

600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample.

Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc. Beltsville, MD NVLAP Lab Code 200293-0

ASB_PLMwSigs_0007_0001 Printed:8/24/2020 9:29:29PM Page 7 of 8

Tel/Fax: (301) 937-5700 / (301) 937-5701 http://www.EMSL.com / beltsvillelab@emsl.com

192008244EMSL Order:

TIDE50Customer ID:

Customer PO:

Project ID:

Attention: Phone:Meneka Rodrigo (443) 691-6749

Fax:Tidewater, Inc. (410) 997-8713

Received Date:6625 Selnick Drive 08/20/2020 4:26 PM

Analysis Date:Suite A 08/21/2020 - 08/24/2020

Collected Date:Elkridge, MD 21075 08/20/2020

Project: MBW CRP Q6

The samples in this report were submitted to EMSL for analysis by Asbestos Analysis of Bulk materials via

EPA/600 (0513) Method using Polarized Light Microscopy. The reference number for these samples is the

EMSL Order ID above. Please use this reference number when calling about these samples.

Report Comments:

Sample Receipt Date:

Analysis Completed Date:

Sample Receipt Time:

Analysis Completed Time:

08/20/2020 4:26 PM

08/24/2020 8:48 PM

Analyst(s):

William Chrobak PLM (47)

Samples Reviewed and approved by:

Joe Centifonti, Laboratory Manager or other approved signatory

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. 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. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA

600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample.

Estimation of uncertainty is available on request.

Samples analyzed by EMSL…