25-0004 Lead Survey.pdf

Asbestos Survey Building 1860 Roof Repairs

MCB Camp Lejeune

Lead Paint Survey

Project # 25-0004

Report Prepared By:

Christopher B. Walker The Walker Group Architecture, Inc

April 2nd, 2026 WGA Project No. – 2601.1860

Project Information

The Walker Group Architecture, Inc. was contracted by NRW Engineering to conduct a lead sampling survey for Building 1860 at Marine Corps Base Camp Lejeune. The specified structure is slated for complete removal and replacement of the existing modified bitumen roof system. The survey was conducted to determine if building components were coated with lead-based paint.

Scope of Services

A. The survey was performed on 02/10/2026 by Christopher B. Walker (NC Accredited Lead Inspector #110239 expires August 31st, 2026. Samples were collected from areas defined by the scope of work.

Findings

A. The Walker Group Architecture collected paint chip samples from each surface visibly coated with a different color of paint and delivered them to EMSL Analytical, Inc. (AIHA ELLAP lab code no. 102564) for analysis for lead content by Flame AAS (SW 846 3050B*/7420) in accordance with EPA 3050B/Modified/7000B. OSHA 29 CFR

1926.62 defines any detectable level of lead in paint a concern when renovations/demolitions will impact lead coated surfaces.

B. The detection limit is determined by weight of the sample, which is typically 0.01%.

See attached Lab Results for additional information.

Building Description and Findings

Structure SAS189A is a nonactive outdoor shooting range. The structure comprises of (2) side wood and earth filled berm walls and an overhead steel structure that supports an acoustical baffle system. There is steel bullet trap with an integrated metal roof system. The walls are a combination of baffle system, and insulation on metal framing.

Laboratory Results

Suspect Material Sampled Location Condition Concentration

% by Weight Gray Exterior Metal Ladder Exterior Low to High

Roof Ladder Intact 0.0984%

Based on the sample analysis, the following coatings should be considered Lead Based Paint.

MCB Camp Lejeune

Gray Exterior Metal Ladder

Location

Recommendations

A. Any demolition/renovation work in which lead coated surfaces are disturbed must be in compliance with all Federal, State, and Local regulations. All work should be conducted by workers trained in "lead safe practices" as outlined by

OSHA.

B. If additional suspect materials are discovered during demolition/renovation, they should be classified presumed to contain lead-based paint until sampling by a state of North Carolina licensed Lead Inspector personnel and analysis by an Accredited and state of North Carolina licensed laboratory can be performed.

See attached for Plan Locations, Lead Laboratory Results, and Chain of Custody.

If further information is required, please contact me at 1-252-636-8778

Report Prepared by:

Christopher B. Walker North Carolina Lead Inspector Accreditation# 110239 The Walker Group Architecture, Inc.

MCB Camp Lejeune

PO Box 541 New Bern, NC 28560

Lead Interpretive Report

Analyte Analyzed Method Reporting

Limit

IndicatorResultsUnits

EMSL Analytical, Inc.

706 Gralin Street, Kernersville, NC, 27284

Telephone: (336)-992-1025 Fax:(336)-992-4175

Attention: Chris Walker

The Walker Group Architecture [WALK85]

PO Box 541

New Bern, NC 28563

(252) 636-8778 chris@wgarc.com

EMSL Sales Rep:

Project Name:

Customer PO:

Reported:

Received:

Project ID:

B1860

02-WALK85-LEAD

Jason McDonald

3/16/26 4:00

03/19/26 09:54

EMSL Order ID: 022650213

LIMS Reference ID: KE50213

EMSL Customer ID: WALK85

Weight(g) Q

Collected: 02/10/26 00:00Customer Sample ID: Pb01 Lab Sample ID: KE50213-01

0.0079Lead SW 846-7000B03/18/26 12:01

Site:

% wt 0.09540.2029 Pb3

Collected: 02/10/26 00:00Customer Sample ID: Pb02 Lab Sample ID: KE50213-02

0.0074Lead SW 846-7000B03/18/26 12:01

Site:

% wt 0.09840.2154 Pb3

Above action level Above Reporting Limit (RL) but below action level

These guidance limits are typically used in most scenarios. Other local or project specific guidelines may apply.

Please contact the laboratory for statement of uncertainty data for the utility of properly evaluating these results against any regulatory standards or guidelines.

No responsibility or liability is assumed for the manner in which the results are used or interpreted.

Below Reporting Limit (RL)

Interpretation Key and Definitions

Guidelines for Federal USEPA/HUD Lead in Paint Chips

=0.5 % Wt or =1.0 mg/cm2 is the EPA definition of a lead-based paint.

James Cole, Laboratory Manager or other approved signatory

Page 1 of 3Printed: 3/19/2026 9:54:58AMRev 3/19/2026

Please visit our website at http://www.emsl.com

(c) 2023 EMSL Analytical, Inc. All rights reserved. No part of this report may be reproduced or otherwise distributed or used without the expressed written consent of EMSL.

CertificationsAnalyte

Certified Analyses included in this Report

SW 846-7000B in Chips

02-AIHA ELLAPLead

List of Certifications

Code Description Number Expires

02-AIHA ELLAP 102564American Industrial Hygiene Association (AIHA LAP, LLC) - ELLAP 06/01/2026

02-AIHA EMLAP 102564American Industrial Hygiene Association (AIHA LAP, LLC) - EMLAP 06/01/2026

Please see the specific Field of Testing (FOT) on www.emsl.com <http://www.emsl.com> for a complete listing of parameters for which EMSL is certified.

Notes and Definitions

Item Definition

Pb3 The QC sample duplicate RPD result for Lead was outside of the method control limits.

(Dig) For metals analysis, sample was digested.

[2C] Reported from the second channel in dual column analysis.

DA Direct Analysis

DF Dilution Factor

MDL Method Detection Limit.

ND Analyte was NOT DETECTED at or above the reporting limit, or the mdl if provided.

NR Spike/Surrogate showed no recovery.

Q Qualifier

RCS Respirable Crystalline Silica

RL Reporting Limit

Wet Sample is not dry weight corrected.

Measurement of uncertainty and any applicable definitions of method modifications are available upon request. Per EPA NLLAP policy, sample results are not blank corrected.

Page 2 of 3Printed: 3/19/2026 9:54:58AMRev 3/19/2026

Please visit our website at http://www.emsl.com

(c) 2023 EMSL Analytical, Inc. All rights reserved. No part of this report may be reproduced or otherwise distributed or used without the expressed written consent of EMSL.