Attachment 0014 - Hazardous Material Survey Report 04MAY2026.pdf

1311 Continental Drive Abingdon, MD 21009

Telephone: 410-671-6051 Fax: 410-671-6056

EA Engineering, Science www.eaest.com and Technology, Inc., PBC 4 May 2026

Mr. Ray McDermott Lead Engineer APG - Directorate of Public Works Engineering Branch / IMIM-APP-G Building 4304 6504 Rodman Road

APG, MD 21005-5001

Subject: Pre-Demolition Asbestos and Lead Based Paint Survey of Building 4504 EA Proposal No. 0753170-4504

Dear Mr. McDermott:

Per your request and in accordance with EA Engineering, Science, and Technology, Inc., PBC (EA) proposal number 0753170-4504, EA was contracted by the Aberdeen Proving Ground – Directorate of Public Works (APG-DPW) to perform a limited asbestos-containing material (ACM) and lead-based paint (LBP) survey of the first floor of Building 4504. This was in support of the planned demolition/renovation of Building 4504 in the Aberdeen Area of APG.

The upcoming repairs are expected to affect building materials and systems within the selected building’s interior and roof.

EA conducted the ACM and LBP survey on 21 April 2026. Sampling activities involved the collection of bulk samples from suspect asbestos-containing materials (ACM) to determine asbestos content, and the screening of paint surfaces to determine lead content using a Niton Xlp- 300 x-ray fluorescence (XRF) analyzer.

Introduction

Current federal and state environmental regulations require that certain potentially hazardous materials that may be affected by building alteration activities be identified and removed prior to conducting these activities.

In the case of asbestos, Environmental Protection Agency (EPA), Occupational Safety and Health Administration (OSHA), and State of Maryland regulatory requirements contained in 40 Code of Federal Regulations (CFR) 61, 29 CFR 1926.1101, and Code of Maryland Regulations (COMAR) 26.11.21, respectively, require that ACM be identified, and that friable ACM and ACM that has the potential to become friable, be removed prior to conducting alteration activities that may disturb these materials. EA conducted an asbestos inspection in accordance with Asbestos Hazard Emergency Response Act (AHERA) inspection and sampling protocols to determine the presence of asbestos in building materials throughout the building.

Requirements for the identification and notification of the presence of lead-based paint (LBP) and lead-containing paint (LCP) are found in 29 CFR 1926.62. Although LBP/LCP removal is http://www.eaest.com/

ACM and LBP Survey Report Aberdeen Proving Ground – Aberdeen Area, Building 4504 not required prior to building alteration, contractors working in areas where LBP/LCP is present must be notified of its location and must take appropriate action to minimize its disturbance and protect workers and the environment. In many cases, removal of leaded paint presents the only viable option to limiting exposure. Lead-containing waste must also be sampled to determine appropriate disposal requirements.

Methodology

Asbestos-Containing Materials

The ACM inspection was conducted in accordance with EPA Standard 40 CFR 763, Subpart E, AHERA inspection and sampling protocol, which included identifying homogeneous areas of suspect ACM, determination of suspect ACM friability, assessing homogeneous areas of suspect ACM to determine condition, and collection of samples of suspect ACM to determine asbestos content. Sampling rationale is based on AHERA sampling requirements for each type of material.

The asbestos inspection was a nonintrusive investigation performed to identify suspect ACM in accessible building areas. Samples of suspected ACM were submitted to AMA Analytical Services, Inc. for analysis by Polarized Light Microscopy (PLM) in accordance with the EPA Method for the Determination of Asbestos in Bulk Insulation Samples (EPA/600/R-93/116), utilizing positive stop methodology. In this method, a sample set representing a homogeneous area of suspect ACM is analyzed until a result indicating >1% asbestos is obtained. Once such a result is obtained, any additional samples in the set are not analyzed and the homogeneous area is considered to be asbestos containing. If no results indicating >1% asbestos are obtained via PLM, the homogeneous area is considered to be non-asbestos. AMA Analytical Services, Inc. is accredited by the National Institute of Standards and Technology (NIST) National Voluntary Laboratory Accreditation Program (NVLAP) and by the American Industrial Hygiene Association (AIHA).

Lead-Based Paint and Lead-Containing Paint EA conducted an LBP/LCP survey of accessible interior surfaces to identify building components (e.g., walls, doors and related components, heating system components) with lead coatings (paint, glaze, stain, varnish, etc.). The survey consisted of onsite testing utilizing a Thermo Scientific Niton XLp 300 X-Ray fluorescence (XRF) spectrum analyzer.

At this time, there are no federal or state regulations that specifically identify testing procedures for non-residential structures scheduled for building alteration. U.S. Department of Housing and Urban Development (HUD) sampling requirements were not required for this project; therefore, EA followed the XRF manufacturer’s testing methodology during the survey. Prior to obtaining readings from suspect LBP surfaces, the XRF was calibrated in accordance with the manufacturer’s instructions. Calibration checks were performed prior to and at the completion of the inspection, and at the manufacturer’s specified time intervals.

Surfaces were identified as LBP if the result met the State of Maryland definition of LBP, which is greater than 0.7 milligrams per square centimeter (mg/cm2). XRF readings greater than 0.0 mg/cm2 but less than or equal to 0.7 mg/cm2 are identified as LCP.

RESULTS

Asbestos-Containing Materials EA collected forty-three (43) bulk samples representing sixteen (16) homogeneous areas of suspect ACM from interior and roof areas of the building. ACM is defined by EPA standards as materials determined to contain greater than 1% asbestos. None of the forty-three (43) samples collected, representing sixteen (16) homogenous areas sampled during the 21 April 2026 survey, were found to contain greater than 1% asbestos.

Sample forms are included in Attachment I. Sample diagrams, laboratory analytical results and chain-of-custody forms, and inspector certifications are included in Attachments II, III, and IV, respectively. A photographic log of findings is included in Attachment VI. Assumed ACM materials are included in Table 1 below along with descriptions and quantities of ACM in the building.

Lead-Based Paint and Lead-Containing Paint Based on XRF results, six (6) of the surface coatings tested were identified as LBP (lead concentration greater than 0.7 mg/cm2). Nine (9) surface coatings were identified as LCP with lead concentrations ranging from 0.01 to 0.6 mg/cm2 and are listed below in Table 2.

In the case of the ceramic tile, bathtub and sink materials, these materials are lead containing materials (the lead is contained in the ceramic glazing of the material, not in a paint coating).

Table 1: Building 4504 Identified LBP

Component Substrate Color Room (where tested) Floor Lead

(mg/cm2)

WALL CERAMIC BLUE 123 BATH FIRST 7.60

WALL CERAMIC BLUE 123 BATH FIRST 7.20

WALL CERAMIC BLUE 123 BATH FIRST 9.80

WALL CERAMIC BLUE 123 BATH FIRST 8.00

BATHTUB CERAMIC WHITE 123 BATH FIRST 7.00

SINK CERAMIC WHITE 123 BATH FIRST 7.80

Table 2: Building 4504 Identified LCP

Component Substrate Color Room (where tested) Floor Lead

(mg/cm2)

WALL CBLOCK BEIGE HALL FIRST 0.01

WALL CBLOCK BEIGE HALL FIRST 0.01

WALL CERAMIC GREY HALL FIRST 0.01

WALL CERAMIC BEIGE HALL FIRST 0.03

WALL CERAMIC BEIGE HALL FIRST 0.01

RISER METAL TAN STAIR 2 FIRST 0.01

HANDRAIL METAL TAN STAIR 2 FIRST 0.01

RADIATOR METAL TAN STAIR 2 FIRST 0.01

TOILET CERAMIC WHITE 123 BATH FIRST 0.03

Inspector certifications are included in Attachment IV. XRF screening results are included in Attachment V. A photographic log is included in Attachment VI.

DISCUSSION AND RECOMMENDATIONS

Asbestos-Containing Materials Based upon survey and sampling conducted during the 21 April 2026 ACM sampling event, management of ACM prior to planned renovation work is not required.

If suspect ACM not already identified and sampled during prior inspections is discovered during renovation activities, those materials should be sampled to determine asbestos content and managed appropriately should they be determined to be ACM.

Lead-based and Lead-containing Paint LBP was identified on six (6) tested surfaces of the building and LCP was identified on nine (9) tested surfaces of the building. These included various ceramic, wood, metal, and concrete surfaces.

In the case of the ceramic tile, bathtub and sink materials, these materials are lead containing materials (the lead is contained in the ceramic glazing of the material, not in a paint coating).

Removal of LBP and LCP prior to building alteration is not required. However, workers must be made aware of potential LBP and LCP hazards. OSHA has stated that any detectable concentrations of lead may trigger certain provisions of 29 CFR 1926.62. Therefore, should building alteration activities include these surfaces, worker protection requirements and engineering controls to protect unaffected areas of the building from lead contamination, should be implemented in accordance with the regulation.

As with any painted surface, the underlying paint layers can vary in color and lead content.

Therefore, negative test results for a given component and surface color should not be relied upon for similar appearing components. For instance, the same color surface paint on doors can produce negative results on some doors and be positive (due to underlying paint) on other doors.

Untested building components or structures should be considered to contain regulated levels of lead until subsequent testing shows otherwise. However, the same positive test combinations of substrate, paint color, and component at one location should be assumed to contain lead at locations not specifically sampled.

DISCLAIMER

EA does not warrant that there is no asbestos, LBP/LCP in areas of the facility not inspected as part of this scope of work, nor does EA accept any liability if such is found at some future time or could have been found if additional analyses or studies were conducted. EA does not assume responsibility for other environmental issues that may be associated with the subject facility.

In view of the rapidly changing status of environmental laws, regulations, and guidelines, EA cannot be responsible for changes in laws, regulations, or guidelines that occur after the study has been completed and which may affect the facility. This report was prepared for APG-DPW by EA. Any transfer of information contained in this report can be conducted only if written consent is provided by APG-DPW.

Thank you for the opportunity to provide environmental services to APG-DPW. Should you have any questions or comments regarding this report, please do not hesitate to call me directly at

(410) 671-6057.

Sincerely, EA ENGINEERING, SCIENCE, AND

TECHNOLOGY, INC., PBC

Scott Dobson Project Manager

Attachments:

I – Asbestos Inspection Sampling Form II – Asbestos Sampling Location Diagram III – Analytical Laboratory Results IV – Inspector Certification V – XRF Screening Results VI – Photographic Log

ATTACHMENT I:

ASBESTOS INSPECTION SAMPLING FORM

ASBESTOS INSPECTION SAMPLING FORM

Location/Date: 4504 Aberdeen Area, APG

Inspector: Mackenzie Smith

HA Sample Number

Location (Floor#, Room/Area

Type of Material

(TSI,

Surfacing

, Misc., etc.)

Description (Color, Size, Feature, etc.)

Friable (Y/N)

Condition (Good/Fair/ Poor/Dama ged/Sig.

Damaged)

Percent Damag ed

Estimated Quantity

(SF/LF)

Other Locations in Building If

Known

Sampling Result (Type and % ACM)

DW

4504-DW1-A Throughou t

Miscellan eous

(MISC)

White drywall located throughout

Y Good 0% 300 SF NA Negative

DW

4504-DW1-B Throughou t

MISC White drywall located throughout

Y Good 0% 300 SF NA Negative

DW

4504-DW1-C Throughou t

MISC White drywall located throughout

Y Good 0% 300 SF NA Negative

JC1 4504-JC1-A Throughou t

MISC White joint compound located throughout

Y Good 0% 50 LF NA Negative

JC1 4504-JC1-B Throughou t

MISC White joint compound located throughout

Y Good 0% 50 LF NA Negative

JC1 4504-JC1-C Throughou t

MISC White joint compound located throughout

Y Good 0% 50 LF NA Negative

CT1 4504-CT1-A Throughou t

MISC White ceiling tile located throughout

Y Good 0% 2,500 SF NA Negative

CT1 4504-CT1-B Throughou t

MISC White ceiling tile located throughout

Y Good 0% 2,500 SF NA Negative

CT1 4504-CT1-C Throughou t

MISC White ceiling tile located throughout

Y Good 0% 2,500 SF NA Negative

DM

4504-DM1-A Kitchen Room

MISC Grey duct mastic located in kitchen space

N Good 0% 2 LF NA Negative

FT1 4504-FT1-A Throughou t

Surfacing Material

(SM)

Grey 12"x12" floor tile N Good 0% 1,500 SF NA Negative

FM1 4504-FM1-A Throughou t

MISC Black mastic associated with grey tile

N Good 0% 1,500 SF NA Negative

FT1 4504-FT1-B Throughou t

SM Grey 12"x12" floor tile N Good 0% 1,500 SF NA Negative

FM1 4504-FM1-B Throughou t

MISC Black mastic associated with grey tile

N Good 0% 1,500 SF NA Negative

FT1 4504-FT1-C Throughou t

SM Grey 12"x12" floor tile N Good 0% 1,500 SF NA Negative

FM1 4504-FM1-C Throughou t

MISC Black mastic associated with grey tile

N Good 0% 1,500 SF NA Negative

FT2 4504-FT2-A Throughou t

SM Tan 12"x12" floor tile N Good 0% 350 SF NA Negative

FM2 4504-FM2-A Throughou t

MISC Black mastic associate with tan tile

N Good 0% 350 SF NA Negative

FT2 4504-FT2-B Throughou

SM Tan 12"x12" floor tile N Good 0% 350 SF NA Negative

FM2 4504-FM2-B Throughou

MISC Black mastic associate with tan tile

N Good 0% 350 SF NA Negative

FT2 4504-FT2-C Throughou t

SM Tan 12"x12" floor tile N Good 0% 350 SF NA Negative

FM2 4504-FM2-C Throughou t

MISC Black mastic associate with tan tile

N Good 0% 350 SF NA Negative

CB1 4504-CB1-A Throughou t

MISC Black cove base located throughout

N Good 0% 750 LF NA Negative

CB

M1

4504-CBM1-

A

Throughou t

MISC Yellow mastic associated with black cove base

N Good 0% 750 LF NA Negative

CB1 4504-CB1-B Throughou t

MISC Black cove base located throughout

N Good 0% 750 LF NA Negative

CB

M1

4504-CBM1-

B

Throughou t

MISC Yellow mastic associated with black cove base

N Good 0% 750 LF NA Negative

CB1 4504-CB1-C Throughou t

MISC Black cove base located throughout

N Good 0% 750 LF NA Negative

CB

M1

4504-CBM1-

C

Throughou t

MISC Yellow mastic associated with black cove base

N Good 0% 750 LF NA Negative

DW

M1

4504-DWM1-

A

Telephone Room

MISC White duct wrap mastic located in telephone room

N Good 0% 20 SF NA Negative

DW

M1

4504-DWM1-

B

Telephone Room

MISC White duct wrap mastic located in telephone room

N Good 0% 20 SF NA Negative

DW

M1

4504-DWM1-

C

Telephone Room

MISC White duct wrap mastic located in telephone room

N Good 0% 20 SF NA Negative

PW

M1

4504-PWM1-

A

Throughou t

MISC Small white pipe wrap mastic located throughout

N Good 0% 30 LF NA Negative

PW

M1

4504-PWM1-

B

Throughou t

MISC Small white pipe wrap mastic located throughout

N Good 0% 30 LF NA Negative

PW

M1

4504-PWM1-

C

Throughou t

MISC Small white pipe wrap mastic located throughout

N Good 0% 30 LF NA Negative

PW

M2

4504-PWM2-

A

Throughou t

MISC Medium white pipe wrap mastic located throughout

N Good 0% 30 LF NA Negative

PW

M2

4504-PWM2-

B

Throughou t

MISC Medium white pipe wrap mastic located throughout

N Good 0% 30 LF NA Negative

PW

M2

4504-PWM2-

C

Throughou t

MISC Medium white pipe wrap mastic located throughout

N Good 0% 30 LF NA Negative

RM

4504-RM1-A Roof MISC Black roof mastic N Good 0% 25 SF NA Negative

RM

4504-RM1-B Roof MISC Black roof mastic N Good 0% 25 SF NA Negative

RT1 4504-RT1-A Roof MISC Black roof tar N Good 0% 25 SF NA Negative

RT1 4504-RT1-B Roof MISC Black roof tar N Good 0% 25 SF NA Negative

RC1 4504-RC1-A Roof MISC Black roof caulk N Good 0% 10 LF NA Negative

RC1 4504-RC1-B Roof MISC Black roof caulk N Good 0% 10 LF NA Negative

ATTACHMENT II:

ASBESTOS SAMPLING LOCATION DIAGRAM

4504-DW1-B

4504-DW1-C

Building 4504 - Interior

4504-JC1-A

4504-JC1-B

4504-JC1-C

4504-CT1-A

4504-CT1-B

4504-CT1-C

4504-DM1-A

4504-FT1-A

4504-FM1-A

4504-FT1-B

4504-FM1-B

4504-FT1-C

4504-FM1-C

4504-FT2-A

4504-FM2-A

4504-FT2-B

4504-FM2-B

4504-FT2-C

4504-FM2-C

4504-DWM1-A

4504-DWM1-B

4504-DWM1-C

4504-PWM1-A

4504-PWM1-B

4504-PWM2-A

4504-PWM2-B

4504-DW1-A

4504-PWM1-C

4504-PWM2-C

4504-CB1-A

4504-CBM1-A

4504-CB1-B

4504-CBM1-B

4504-CB1-C

4504-CBM1-C

Building 4504 - Roof

4504-RM1-A

4504-RM1-B

4504-RT1-A

4504-RT1-B

4504-RC1-A

4504-RC1-B

ATTACHMENT III:

ANALYTICAL LABORATORY RESULTS

CERTIFICATE OF ANALYSIS

Chain of Custody: 679426 Job Name: Building 4504 Date Submitted: 04-22-2026

Client: EA Engineering, Science, and Technology

Job Location: APG Date Analyzed: 04-24-2026

Address: 225 Schilling Circle Suite 400 Hunt Valley MD 21031

Job Number: Not Provided Report Date: 04-24-2026

Attention: Scott Dobson P.O. Number: 19489 Date Sampled: 04-21-2026

Person Submitting: Mackenzie Smith

Summary of Polarized Light Microscopy

4475 Forbes Blvd. · Lanham, MD, 20706 · (301) 459-2640

AMA

Sample Number

Client Sample Number

Total Asbestos

Chrysotile Percent

Amosite Percent

Crocidolite Percent

Other Asbestos Percent

Mineral Wool Percent

Fiberglass Percent

Organic Percent

Synthetic Percent

Other Percent

Particulate Percent

Sample Type

Sample Color

Homogeneity Analyst

ID

Comments

679426-

4504-

DW1-A

NAD -- -- -- -- -- -- 10 -- -- 90 DW Multi Layered PC

679426-

4504-

DW1-B

NAD -- -- -- -- -- -- 10 -- -- 90 DW Multi Layered PC

679426-

4504-

DW1-C

NAD -- -- -- -- -- -- 10 -- -- 90 DW Multi Layered PC

679426-

4504-

JC1-A

NAD -- -- -- -- -- -- -- -- -- 100 JC White Homogenous PC

679426-

4504-

JC1-B

NAD -- -- -- -- -- -- -- -- -- 100 JC White Homogenous PC

679426-

4504-

JC1-C

NAD -- -- -- -- -- -- -- -- -- 100 JC White Homogenous PC

679426-

4504-

CT1-A

NAD -- -- -- -- 50 -- -- -- -- 50 CT Multi Layered PC

679426-

4504-

CT1-B

NAD -- -- -- -- 50 -- -- -- -- 50 CT Multi Layered PC

679426-

4504-

CT1-C

NAD -- -- -- -- 50 -- -- -- -- 50 CT Multi Layered PC

679426-

4504-

DM1-A

NAD -- -- -- -- -- -- -- -- -- 100 DM Gray Homogenous PC

679426-

4504-

FT1-A

NAD -- -- -- -- -- -- -- -- -- 100 FT Multi Homogenous PC

679426-

4504-

FM1-A

NAD -- -- -- -- -- -- -- -- 2 98 MS Black Homogenous PC

679426-

4504-

FT1-B

NAD -- -- -- -- -- -- -- -- -- 100 FT Multi Homogenous PC

679426-

4504-

FM1-B

NAD -- -- -- -- -- -- -- -- 2 98 MS Black Homogenous PC

679426-

4504-

FT1-C

NAD -- -- -- -- -- -- -- -- -- 100 FT Multi Homogenous PC

679426-

4504-

FM1-C

NAD -- -- -- -- -- -- -- -- 2 98 MS Black Homogenous PC

679426-

4504-

FT2-A

NAD -- -- -- -- -- -- -- -- -- 100 FT Multi Homogenous PC

679426-

4504-

FM2-A

NAD -- -- -- -- -- -- -- -- 2 98 MS Black Homogenous PC

Client: EA Engineering, Science, and Technology

Job Location: APG Date Analyzed: 04-24-2026

Address: 225 Schilling Circle Suite 400 Hunt Valley MD 21031

Job Number: Not Provided Report Date: 04-24-2026

4475 Forbes Blvd. · Lanham, MD, 20706 · (301) 459-2640

AMA

Sample Number

Client Sample Number

Total Asbestos

Chrysotile Percent

Amosite Percent

Crocidolite Percent

Other Asbestos Percent

Mineral Wool Percent

Fiberglass Percent

Organic Percent

Synthetic Percent

Other Percent

Particulate Percent

Sample Type

Sample Color

Homogeneity Analyst

ID

Comments

679426-

4504-

FT2-B

NAD -- -- -- -- -- -- -- -- -- 100 FT Multi Homogenous PC

679426-

4504-

FM2-B

NAD -- -- -- -- -- -- -- -- 2 98 MS Black Homogenous PC

679426-

4504-

FT2-C

NAD -- -- -- -- -- -- -- -- -- 100 FT Multi Homogenous PC

679426-

4504-

FM2-C

NAD -- -- -- -- -- -- -- -- 2 98 MS Black Homogenous PC

679426-

4504-

CB1-A

NAD -- -- -- -- -- -- -- -- -- 100 CB Black Homogenous PC

679426-

4504-

CBM1-

A

NAD -- -- -- -- -- -- -- -- -- 100 MS Yellow Homogenous PC

679426-

4504-

CB1-B

NAD -- -- -- -- -- -- -- -- -- 100 CB Black Homogenous PC

679426-

4504-

CBM1-

B

NAD -- -- -- -- -- -- -- -- -- 100 MS Yellow Homogenous PC

679426-

4504-

CB1-C

NAD -- -- -- -- -- -- -- -- -- 100 CB Black Homogenous PC

679426-

4504-

CBM1-

C

NAD -- -- -- -- -- -- -- -- -- 100 MS Yellow Homogenous PC

679426-

4504-

DWM1-

A

NAD -- -- -- -- -- -- -- -- -- 100 DM White Homogenous PC

679426-

4504-

DWM1-

B

NAD -- -- -- -- -- -- -- -- -- 100 DM White Homogenous PC

679426-

4504-

DWM1-

C

NAD -- -- -- -- -- TR TR -- -- 100 DM White Homogenous PC

679426-

4504-

PWM1-

A

NAD -- -- -- -- -- TR -- -- -- 100 PM White Homogenous PC

Client: EA Engineering, Science, and Technology

Job Location: APG Date Analyzed: 04-24-2026

Address: 225 Schilling Circle Suite 400 Hunt Valley MD 21031

Job Number: Not Provided Report Date: 04-24-2026

4475 Forbes Blvd. · Lanham, MD, 20706 · (301) 459-2640

AMA

Sample Number

Client Sample Number

Total Asbestos

Chrysotile Percent

Amosite Percent

Crocidolite Percent

Other Asbestos Percent

Mineral Wool Percent

Fiberglass Percent

Organic Percent

Synthetic Percent

Other Percent

Particulate Percent

Sample Type

Sample Color

Homogeneity Analyst

ID

Comments

679426-

4504-

PWM1-

B

NAD -- -- -- -- -- -- -- -- -- 100 PM White Homogenous PC

679426-

4504-

PWM1-

C

NAD -- -- -- -- -- 2 20 -- -- 78 PM White Homogenous PC

679426-

4504-

PWM2-

A

NAD -- -- -- -- -- -- -- -- -- 100 PM White Homogenous PC

679426-

4504-

PWM2-

B

NAD -- -- -- -- -- TR TR -- -- 100 PM White Homogenous PC

679426-

4504-

PWM2-

C

NAD -- -- -- -- -- 2 20 -- -- 78 PM White Homogenous PC

679426-

4504-

RM1-A

NAD -- -- -- -- -- -- -- -- -- 100 MS Black Homogenous PC

679426-

4504-

RM1-B

NAD -- -- -- -- -- -- -- -- -- 100 MS Black Homogenous PC

679426-

4504-

RT1-A

NAD -- -- -- -- -- -- 5 -- -- 95 Tar Black Homogenous PC

679426-

4504-

RT1-B

NAD -- -- -- -- -- -- 5 -- -- 95 Tar Black Homogenous PC

679426-

4504-

RC1-A

NAD -- -- -- -- -- -- -- -- -- 100 CK Black Homogenous PC

679426-

4504-

RC1-B

NAD -- -- -- -- -- -- -- -- -- 100 CK Black Homogenous PC

Client: EA Engineering, Science, and Technology

Job Location: APG Date Analyzed: 04-24-2026

Address: 225 Schilling Circle Suite 400 Hunt Valley MD 21031

Job Number: Not Provided Report Date: 04-24-2026

4475 Forbes Blvd. · Lanham, MD, 20706 · (301) 459-2640

Technical

Director Mike Greenberg

This report applies only to the sample, or samples, investigated and is not necessarily indicative of the quality or condition of apparently identical or similar products. As a mutual protection to clients, the public, and these Laboratories, this report is submitted and accepted for the exclusive use of the client to whom it is addressed and upon the condition that it is not to be used, in whole or in part, in any advertising or publicity matter without prior written authorization from us. Sample types, locations, and collection protocols are based upon the information provided by the persons submitting them and, unless collected by personnel of these Laboratories, we expressly disclaim any knowledge and liability for the accuracy and completeness of this information. Residual sample material will be discarded in accordance with the appropriate regulatory guidelines, unless otherwise requested by the client. This report must not be used to claim, and does not imply product certification, approval, or endorsement by NY ELAP, AIHA-

LAP, or any agency of the Federal Government. All rights reserved. AMA Analytical Services, Inc.

The following footnotes only apply to those samples which the total asbestos result is flagged with a note number.

1 TEM RECOMMENDATION - Please note, due to resolution limitations with optical microscopy and/or interference from matrix components of this sample, results which are reported via PLM as negative or trace (<1%) for asbestos may contain a significant quantity of asbestos. It is recommended that the additional analytical technique of TEM be used to check for asbestos fibers below the resolution limits of optical microscopy.

2 MATRIX REDUCTION RECOMMENDATION – Please note, due to interference from the matrix components of this sample, results which are reported via PLM as negative or trace (<1%) for asbestos may contain a significant quantity of asbestos which is obscured from view. It is recommended that the additional preparation technique of gravimetric reduction be performed on this sample to minimize the obscuring effects of matrix components, followed by reanalysis by PLM and/or TEM.

Analysis Method – EPA/600/R-93/116 dated July 1993 and EPA 600/M4/82/020 dated December 1982 NAD = “No Asbestos Detected” TR = “Trace equals less than 1% of this component”

Uncertainty: For samples containing asbestos in range of 1-10% the CV is 0.43, 11-35% CV = 0.55, >35 CV = 0.23. All results are to be considered preliminary and subject to change unless signed by the Technical Director or Deputy.

Analyst(s): Peera Chaikeenee, ATTACHMENT IV:

INSPECTOR CERTIFICATIONS

AEROSOL MONITORING & ANALYSIS, INC.

This is to certify that

MACKENZIE SMITH

has met the attendance requirements and successfully completed the course entitled

1-DAY EPA ASBESTOS INSP/MGMT PLANNER REFRESHER

For Accreditation Under TSCA Title II

04/24/2025 Course Date

04/24/2025 Exam Date

04/24/2026 Expiration Date

VAIMPR04242025-06

Certification No.

VAVAIMPR04242025-06

VA Certification No.

STEVE SIERACKI

Principal Instructor

E. Rush Barnett Course Director

1331 Ashton Road P.O.Box 646 Hanover, MD 21076 P: 410-684-3327 F: 410-684-3724 www.amatraining.com

THIS IS TO CERTIFY THAT

Edward Ruben Rodriguez

HAS MET THE LEAD PAINT SERVICES

ACCREDITATION REQUIREMENTS FOR

Risk Assessor

START DATE: 05/09/2025 EXPIRY DATE: 05/09/2027

TRAINING PROVIDER: Aerosol Monitoring & Analysis, Inc.

COURSE DATE: 05/16/2024

ACCREDITATION # 10880 RA

05/09/2025ADMINISTRATOR, LEAD PAINT ACCREDITATION

APPROVED DATEMARYLAND DEPARTMENT OF THE ENVIRONMENT

STATE OF MARYLAND

ATTACHMENT V:

XRF SCREENING RESULTS

Attachment V - XRF Screening Results APG Building 4504

Reading No Time Component Substrate Side Condition Color Floor Room Results PbC PbC Error

1 4/21/2026 9:08 CALIBRATE Positive 0.59 0.00 2 4/21/2026 9:09 CALIBRATE Positive 1.00 0.30 3 4/21/2026 9:10 CALIBRATE Positive 1.20 0.50 4 4/21/2026 9:10 CALIBRATE Negative 0.00 0.02 5 4/21/2026 9:14 WALL CBLOCK A INTACT BEIGE FIRST HALL Negative 0.01 0.02 6 4/21/2026 9:15 WALL CBLOCK B INTACT BEIGE FIRST HALL Negative 0.01 0.02 7 4/21/2026 9:16 WALL CBLOCK C INTACT BEIGE FIRST HALL Negative 0.00 0.02 8 4/21/2026 9:19 WALL CBLOCK D INTACT BEIGE FIRST HALL Negative 0.00 0.02 9 4/21/2026 9:21 DOOR CASING METAL A INTACT TAN FIRST HALL Negative 0.00 0.02

10 4/21/2026 9:21 DOOR METAL A INTACT TAN FIRST HALL Negative 0.00 0.02 11 4/21/2026 9:23 RADIATOR COVER METAL D INTACT TAN FIRST VESTIBULE Negative 0.00 0.02 12 4/21/2026 9:23 DOOR CASING METAL A INTACT BROWN FIRST VESTIBULE Negative 0.00 0.02 13 4/21/2026 9:24 DOOR METAL A INTACT BROWN FIRST VESTIBULE Negative 0.00 0.02 14 4/21/2026 9:25 BEAM METAL CEILING INTACT RED FIRST VESTIBULE Null 0.00 0.02 15 4/21/2026 9:26 BEAM METAL CEILING INTACT RED FIRST VESTIBULE Null 0.00 0.02 16 4/21/2026 9:26 BEAM METAL CEILING INTACT RED FIRST VESTIBULE Null 0.00 0.04 17 4/21/2026 9:26 BEAM METAL CEILING INTACT RED FIRST VESTIBULE Null 0.01 0.05 18 4/21/2026 9:27 BEAM METAL CEILING INTACT RED FIRST VESTIBULE Negative 0.00 0.02 19 4/21/2026 9:29 WALL CERAMIC C INTACT GREY FIRST HALL Null 0.01 0.04 20 4/21/2026 9:29 WALL CERAMIC C INTACT GREY FIRST HALL Null 0.00 0.04 21 4/21/2026 9:30 WALL CERAMIC C INTACT GREY FIRST HALL Negative 0.00 0.02 22 4/21/2026 9:31 WALL CERAMIC D INTACT GREY FIRST HALL Null 0.00 0.02 23 4/21/2026 9:32 WALL CERAMIC D INTACT GREY FIRST HALL Null 0.00 0.02 24 4/21/2026 9:33 WALL CERAMIC D INTACT GREY FIRST HALL Negative 0.01 0.02 25 4/21/2026 9:35 WALL CERAMIC A INTACT BEIGE FIRST BATHROOM Negative 0.00 0.02 26 4/21/2026 9:36 WALL CERAMIC B INTACT BEIGE FIRST BATHROOM Negative 0.03 0.08 27 4/21/2026 9:38 WALL CERAMIC C INTACT BEIGE FIRST BATHROOM Negative 0.01 0.02 28 4/21/2026 9:39 WALL CERAMIC D INTACT BEIGE FIRST BATHROOM Negative 0.00 0.02 29 4/21/2026 9:41 WALL DRYWALL A INTACT BEIGE FIRST BATHROOM Negative 0.00 0.02 30 4/21/2026 9:41 WALL DRYWALL B INTACT BEIGE FIRST BATHROOM Null 0.00 0.03 31 4/21/2026 9:42 WALL DRYWALL B INTACT BEIGE FIRST BATHROOM Negative 0.00 0.02

21 April 2026

32 4/21/2026 9:43 WALL DRYWALL C INTACT BEIGE FIRST BATHROOM Null 0.00 0.02 33 4/21/2026 9:45 WALL DRYWALL C INTACT BEIGE FIRST BATHROOM Negative 0.00 0.02 34 4/21/2026 9:46 WALL DRYWALL D INTACT BEIGE FIRST BATHROOM Negative 0.00 0.02 35 4/21/2026 9:49 WALL CBLOCK A INTACT BEIGE FIRST STAIR 2 Null 0.00 0.02 36 4/21/2026 9:50 WALL CBLOCK A INTACT BEIGE FIRST STAIR 2 Negative 0.00 0.02 37 4/21/2026 9:52 WALL CBLOCK B INTACT BEIGE FIRST STAIR 2 Negative 0.00 0.02 38 4/21/2026 9:53 WALL CBLOCK C INTACT BEIGE FIRST STAIR 2 Negative 0.00 0.02 39 4/21/2026 9:54 WALL CBLOCK D INTACT BEIGE FIRST STAIR 2 Negative 0.00 0.02 40 4/21/2026 9:55 DOOR CASING METAL D INTACT TAN FIRST STAIR 2 Negative 0.00 0.02 41 4/21/2026 9:56 DOOR METAL D INTACT TAN FIRST STAIR 2 Null 0.00 0.03 42 4/21/2026 9:56 DOOR METAL D INTACT TAN FIRST STAIR 2 Negative 0.00 0.02 43 4/21/2026 9:57 RISER METAL D INTACT TAN FIRST STAIR 2 Negative 0.01 0.05 44 4/21/2026 9:58 CASING METAL D INTACT TAN FIRST STAIR 2 Negative 0.00 0.02 45 4/21/2026 9:59 HANDRAIL METAL D POOR TAN FIRST STAIR 2 Negative 0.01 0.04 46 4/21/2026 10:00 RADIATOR METAL C INTACT TAN FIRST STAIR 2 Negative 0.01 0.05 47 4/21/2026 10:00 PIPE METAL A INTACT BEIGE FIRST STAIR 2 Negative 0.00 0.02 48 4/21/2026 10:04 WALL CBLOCK A INTACT BEIGE FIRST 123 Negative 0.00 0.02 49 4/21/2026 10:05 WALL CBLOCK B INTACT BEIGE FIRST 123 Null 0.00 0.04 50 4/21/2026 10:06 WALL CBLOCK B INTACT BEIGE FIRST 123 Null 0.00 0.02 51 4/21/2026 10:06 WALL CBLOCK B INTACT BEIGE FIRST 123 Negative 0.00 0.02 52 4/21/2026 10:07 WALL CBLOCK C INTACT BEIGE FIRST 123 Negative 0.00 0.02 53 4/21/2026 10:08 WALL CBLOCK D INTACT BEIGE FIRST 123 Negative 0.00 0.04 54 4/21/2026 10:08 CEILING CONCRETE UPPER INTACT WHITE FIRST 123 Negative 0.00 0.02 55 4/21/2026 10:09 WINDOW SILL WOOD UPPER INTACT BEIGE FIRST 123 Negative 0.00 0.02 56 4/21/2026 10:11 DOOR CASING METAL D INTACT TAN FIRST 123 Negative 0.00 0.02 57 4/21/2026 10:11 DOOR METAL D INTACT TAN FIRST 123 Negative 0.00 0.02 58 4/21/2026 10:12 WALL CERAMIC A INTACT BLUE FIRST 123 BATH Positive 7.60 6.70 59 4/21/2026 10:13 WALL CERAMIC B INTACT BLUE FIRST 123 BATH Positive 7.20 6.50 60 4/21/2026 10:13 WALL CERAMIC C INTACT BLUE FIRST 123 BATH Positive 9.80 8.10 61 4/21/2026 10:13 WALL CERAMIC D INTACT BLUE FIRST 123 BATH Positive 8.00 6.60 62 4/21/2026 10:14 BATHTUB CERAMIC B INTACT WHITE FIRST 123 BATH Positive 7.00 6.20 63 4/21/2026 10:14 SINK CERAMIC B INTACT WHITE FIRST 123 BATH Positive 7.80 6.50 64 4/21/2026 10:19 TOILET CERAMIC D INTACT WHITE FIRST 123 BATH Negative 0.03 0.15

65 4/21/2026 10:24 CALIBRATE Positive 1.00 0.30 66 4/21/2026 10:25 CALIBRATE Positive 1.00 0.30 67 4/21/2026 10:25 CALIBRATE Negative 0.00 0.02

Key Positive (LBP)

LCP

Negative Null Result

ATTACHMENT VI:

PHOTOGRAPHIC LOG

Photograph Log April 2026 Aberdeen Area, APG

Building 4504

Tan and Grey 12” x 12” floor tile (FT1/FT2) (Non-

ACM)

White ceiling tile (CT1) (Non-ACM)

White drywall and joint compound (DW1/JC1) (Non-

ACM)

Hallway with ceiling tile and floor tile (All non-ACM) White duct wrap mastic in telephone room (DWM1) (Non-ACM)

Beige ceramic in bathroom (Lead containing ceramic)

Photograph Log April 2026 Aberdeen Area, APG

Building 4504

Black roof mastic, tar and caulk (Non-ACM)

White ceramic sink in bathrooms (Lead based ceramic)

Blue ceramic and white bathtub in bathrooms (Lead based ceramic)

Blue ceramic in bathrooms (Lead based ceramic) White toilet in bathrooms (Lead containing ceramic)

ERodriguez MDE LBP RA License exp 5-9-2027.pdf