USCG Pacific Strike Team - Lead ACM Survey Report.pdf

Advantage Environmental & Safety Services

ASBESTOS AND LEAD SURVEY REPORT

United States Coast Guard – Pacific Strike Team

450 Hangar Avenue, Novato, California 94949

U.S. Coast Guard Pacific Strike Team – site entrance signage

AESS Job Number: 26-092

Survey / Sample Collection Date: July 8, 2026

Report Date: August 4, 2026

Prepared For: United States Coast Guard – Pacific Strike Team

Prepared By:

Advantage Environmental & Safety Services

1600 Sacramento Inn Way, Suite 127, Sacramento, CA 95815

Asbestos and Lead Survey Report

USCG Pacific Strike Team – Job No. 26-092

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1.0 Executive Summary

Advantage Environmental & Safety Services (AESS) was retained to perform an asbestos- and lead-containing materials survey of designated interior areas at the United States Coast Guard (USCG) Pacific Strike Team facility, located at 450 Hangar Avenue, Novato, California 94949 (the “Site”). The survey was performed on July 8, 2026 by Matt Bailey, Certified Site Surveillance Technician (CSST) and Lead Sampling Technician, of AESS, and consisted of representative bulk sampling of suspect asbestos-containing materials (ACM) and suspect lead-containing building materials within the Men’s South Locker Room, Men’s North Locker Room, and Women’s

Locker Room/Training Room areas of Hangar #1, as depicted on the sample location diagram provided as Figure

1 (Section 5.3).

Twenty (20) bulk samples (representing forty-one (41) individual material layers) were collected and submitted for Polarized Light Microscopy (PLM) analysis of asbestos content under Schneider Laboratories Order No.

696514. Asbestos was detected in two samples, both associated with 12-inch by 12-inch brown/white resilient floor tile in the Men’s South Locker Room: Sample 070826-CGNV-2 (East corner), in which the black, bituminous mastic layer contained 4% chrysotile (the floor tile itself was not asbestos-containing); and Sample 070826-

CGNV-6 (NE corner), in which both the floor tile and its underlying mastic each contained 2% chrysotile. No asbestos was detected in the remaining 39 sample layers. Four (4) bulk paint samples were collected and submitted for total lead analysis under Schneider Laboratories Order No. 696516. Detectable lead was identified in three of the four samples – 070826-CGNV-Pb1 (29.3 mg/kg), 070826-CGNV-Pb2 (2,460 mg/kg / 0.246%), and

070826-CGNV-Pb4 (31.5 mg/kg) – with the fourth sample, 070826-CGNV-Pb3, non-detect (<25.8 mg/kg). None of the four samples reached the current federal regulatory threshold defining lead-based paint (≥ 0.50% by weight /

≥ 5,000 mg/kg), although Sample 070826-CGNV-Pb2 (white paint on concrete, Men’s South Locker Room, B wall) was noticeably elevated relative to the other three samples – roughly half of the regulatory threshold.

A summary of findings and AESS recommendations is provided in Sections 5.0 and 6.0 of this report. The complete laboratory analytical report for asbestos (Appendix A) and the laboratory analytical report and chain-of-custody documentation for lead (Appendix B) are included, along with the sample location diagram (Figure 1);

applicable personnel certifications are provided in Appendix C.

2.0 Introduction and Scope of Work

This report presents the results of a limited asbestos- and lead-containing materials survey conducted by AESS at the request of the United States Coast Guard in connection with planned maintenance, renovation, or abatement-related activities at the Pacific Strike Team facility. The purpose of the survey was to identify the presence and approximate concentration of asbestos and lead in designated suspect building materials so that appropriate handling, abatement, and disposal procedures can be planned prior to disturbance of those materials.

The scope of work performed by AESS included the following:

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• A visual survey of the Men’s South Locker Room, Men’s North Locker Room, and Women’s Locker

Room/Training Room (Hangar #1) to identify homogeneous areas of suspect asbestos-containing and lead-containing materials.

• Collection of twenty (20) representative bulk samples of suspect ACM in general accordance with 40 CFR

Part 763 (AHERA) and EPA Method 600/R-93/116.

• Collection of four (4) representative bulk samples of suspect lead-containing painted surfaces.

• Submission of all samples under chain-of-custody to Schneider Laboratories Global, Inc. (Richmond, Virginia), an AIHA-LAP, LLC accredited laboratory.

• Preparation of a sample location diagram and this summary report of findings.

This survey was limited to the specific materials, locations, and areas identified by AESS field staff and shown on the sample location diagram in Figure 1 (Section 5.3). AESS did not perform a comprehensive, building-wide hazardous materials survey. Refer to Section 7.0, Limitations, for additional information regarding the scope and applicability of this report.

3.0 Site Description

The Site is the USCG Pacific Strike Team facility located at 450 Hangar Avenue, Novato, Marin County, California, within Hangar #1. The areas surveyed include the Men’s South Locker Room, Men’s North Locker Room, and the

Women’s Locker Room and adjoining Training Room, as depicted on the sample location diagram (Figure 1, Section 5.3). Suspect materials sampled included drywall joint compound/taping mud, 12-inch by 12-inch resilient floor tile and associated black mastic, rubber baseboard and glue, 2-foot by 4-foot acoustical ceiling tile, wallpaper and wallpaper glue, vinyl floor sheeting and glue, drywall texture, and fiberglass-reinforced panel

(FRP) glue; painted drywall and painted concrete surfaces were sampled for lead content.

4.0 Survey Methodology

4.1 Asbestos Sampling and Analysis

Suspect ACM was identified by visual inspection and grouped into homogeneous areas based on material type, color, texture, and apparent date of installation. Representative bulk samples were collected from each homogeneous area using wetting techniques and dedicated sampling tools to minimize fiber release, double-bagged, labeled, and submitted under chain-of-custody to Schneider Laboratories Global, Inc. Samples were analyzed by Polarized Light Microscopy (PLM) in accordance with EPA Method 600/R-93/116 and 40 CFR Part

763, Appendix E, Subpart E. Materials composed of multiple layers (e.g., floor tile / mastic, or drywall / joint compound / texture) were analyzed and reported by individual layer.

4.2 Lead Sampling and Analysis

Suspect lead-containing painted surfaces were sampled by removing a representative bulk chip or section of material. Samples were submitted under chain-of-custody to Schneider Laboratories Global, Inc. and analyzed for total lead content by flame atomic absorption spectroscopy in accordance with EPA Method 7000B. Results

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 4 of 21 are reported in milligrams of lead per kilogram of sample (mg/kg, equivalent to parts per million) and as percent lead by dry weight.

5.0 Summary of Findings

5.1 Asbestos Analytical Results

Twenty bulk samples, representing 41 analyzed material layers, were submitted for PLM analysis under

Schneider Laboratories Order No. 696514. Asbestos (chrysotile) was detected in two samples, both associated with 12-inch by 12-inch brown/white resilient floor tile in the Men’s South Locker Room: Sample 070826-CGNV-2

(East corner) contained 4% chrysotile in the black, bituminous mastic layer (the floor tile itself was not asbestos-containing); and Sample 070826-CGNV-6 (NE corner) contained 2% chrysotile in both the floor tile and its underlying mastic layer. No asbestos fibers were detected in any of the remaining 39 analyzed layers. A summary of sampled materials is provided in Table 1; the complete laboratory report is included as Appendix A.

Table 1. Asbestos (PLM) bulk sample summary – Schneider Laboratories Order No. 696514.

Sample ID Location Material Sampled Asbestos Result

070826-CGNV-1

Men’s South Locker Room, A Wall

Taping mud, drywall None Detected

070826-CGNV-2

Men’s South Locker Room, East Corner

12”x12” floor tile (brown/white), mastic 4% Chrysotile (mastic layer)

070826-CGNV-3

Men’s South Locker Room, D Wall

Baseboard (brown), glue None Detected

070826-CGNV-4

Men’s South Locker Room, South Ceiling

2’x4’ acoustic ceiling tile None Detected

070826-CGNV-5

Men’s South Locker Room, C Wall

Taping mud, drywall None Detected

070826-CGNV-6

Men’s South Locker Room, NE Corner

12”x12” floor tile (brown/white), mastic 2% Chrysotile (floor tile and mastic)

070826-CGNV-7

Men’s South Locker Room, B Wall

Baseboard (brown), glue None Detected

070826-CGNV-8

Men’s South Locker Room, Center of Ceiling

2’x4’ acoustic ceiling tile None Detected

070826-CGNV-9

Men’s North Locker Room, C Wall

Taping mud, drywall None Detected

070826-CGNV-10

Men’s North Locker Room, North Corner

12”x12” floor tile (brown/white), mastic None Detected

070826-CGNV-11

Men’s North Locker Room, West Floor

Baseboard (brown), glue None Detected

070826-CGNV-12

Men’s North Locker Room, West Floor

12”x12” floor tile (brown/white), mastic None Detected

070826-CGNV-13

Women’s Locker Room, SE Corner

Wallpaper, glue, taping mud, drywall None Detected

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070826-CGNV-14

Women’s Locker Room, SE Corner

Vinyl floor sheeting (brown/white), glue None Detected

070826-CGNV-15

Women’s Locker Room, South Corner

2’x4’ acoustic ceiling tile None Detected

070826-CGNV-16

Women’s Locker Room, RR South Wall

FRP glue None Detected

070826-CGNV-17

Women’s Locker Room, RR North Wall

FRP glue None Detected

070826-CGNV-18

Women’s Locker Room, N Corner

Texture, taping mud, drywall None Detected

070826-CGNV-19

Women’s Locker Room, NE Corner

Vinyl floor sheeting (brown/white), glue None Detected

070826-CGNV-20

Women’s Locker Room, NE Ceiling

2’x4’ acoustic ceiling tile None Detected

5.2 Lead Analytical Results

Four bulk paint samples (Schneider Laboratories Order No. 696516) were submitted for total lead analysis.

Detectable lead was identified in three of the four samples: 070826-CGNV-Pb1 (white paint on drywall, Men’s

South Locker Room, A wall) at 29.3 mg/kg (0.00293%); 070826-CGNV-Pb2 (white paint on concrete, Men’s South

Locker Room, B wall) at 2,460 mg/kg (0.246%); and 070826-CGNV-Pb4 (white paint on drywall, Women’s Locker

Room, A wall) at 31.5 mg/kg (0.00315%). Sample 070826-CGNV-Pb3 (white paint on drywall, Men’s South Locker

Room, D wall) was non-detect, at less than 25.8 mg/kg. None of the four samples reached the current federal regulatory threshold defining lead-based paint (0.50% by weight / 5,000 mg/kg); however, Sample 070826-

CGNV-Pb2 was notably elevated relative to the other three samples. Results are summarized in Table 2; the complete laboratory report and chain-of-custody documentation are included as Appendix B.

Table 2. Lead bulk sample summary – Schneider Laboratories Order No. 696516. Federal lead-based paint threshold (as of 7/1/26): 0.50% by weight / 5,000 mg/kg.

Sample ID Location Material Sampled Result % by Wt.

070826-CGNV-Pb1 Men’s South Locker Room, A Wall

White paint on drywall 29.3 mg/kg 0.00293%

070826-CGNV-Pb2 Men’s South Locker Room, B Wall

White paint on concrete 2,460 mg/kg 0.246%

070826-CGNV-Pb3 Men’s South Locker Room, D Wall

White paint on drywall <25.8 mg/kg <0.00258%

070826-CGNV-Pb4 Women’s Locker Room, A Wall

White paint on drywall 31.5 mg/kg 0.00315%

5.3 Sample Location Diagram

Figure 1 depicts the approximate location of each asbestos (PLM) and lead (Pb) sample collected during the July

8, 2026 survey, within Hangar #1 at the Site. Yellow highlighting indicates no asbestos or lead was reported for that sample location; violet highlighting denotes the two locations where asbestos was detected in the floor tile

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 6 of 21 and/or mastic (Samples 070826-CGNV-2 and -6, both in the Men’s South Locker Room); red highlighting denotes sample locations where lead was detected, as discussed in Section 5.2.

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Figure 1. Sample location diagram, Hangar #1, USCG Pacific Strike Team (Job No. 26-092).

6.0 Conclusions and Recommendations

6.1 Asbestos

Asbestos-containing material (ACM) was identified in the black, bituminous mastic underlying 12-inch by 12-inch resilient floor tile at two locations in the Men’s South Locker Room: the East corner (Sample 070826-CGNV-2, mastic only) and the NE corner (Sample 070826-CGNV-6, floor tile and mastic). The positive layers contained either 2% or 4% chrysotile asbestos. No other asbestos-containing materials were identified among the 39 remaining sample layers collected within the areas surveyed.

Under 40 CFR Part 61, Subpart M (NESHAP), floor tile and associated mastic of this type is typically classified as

Category I nonfriable ACM in its current, undisturbed condition. Category I nonfriable ACM that is removed intact, without sanding, grinding, cutting, or abrading, and that is not in poor condition, is generally not subject to NESHAP notification and specialized work-practice requirements; however, if the material will be rendered friable during removal (e.g., by mechanical abrasion) or if the quantity disturbed meets the regulatory threshold, NESHAP notification and handling requirements apply. Independent of NESHAP classification, disturbance of the identified ACM is subject to the Cal/OSHA Asbestos Construction Standard (8 CCR Section 1529), which requires use of a registered asbestos abatement contractor, a Certified Asbestos Consultant-developed removal specification, competent-person oversight, and appropriate engineering controls and personal protective equipment for Class I and Class II asbestos work.

• AESS recommends that the identified floor tile and mastic (Sample locations 070826-CGNV-2 and -6, Men’s

South Locker Room) be removed by a licensed and registered asbestos abatement contractor in accordance with Cal/OSHA and, if applicable, NESHAP requirements prior to any renovation, flooring replacement, or demolition activity affecting these areas.

• Waste generated from removal of the identified ACM should be manifested and disposed of as asbestos-containing waste material in accordance with applicable federal, state, and local regulations.

• The remaining 39 sampled material layers did not contain asbestos above the laboratory reporting limit and are not subject to asbestos-specific handling requirements based on these results.

• As with all limited surveys, any suspect material encountered outside the scope of this survey, or any location not represented by a collected sample, should be presumed to contain asbestos or should be sampled and analyzed prior to disturbance.

6.2 Lead

Detectable lead was confirmed in three of the four paint samples collected. None of the four samples reached the current federal regulatory threshold defining lead-based paint (≥ 0.50% by weight / ≥ 5,000 mg/kg). Sample

070826-CGNV-Pb2 (white paint on concrete, Men’s South Locker Room, B wall), at 0.246% (2,460 mg/kg), was the most elevated result – roughly half of the regulatory threshold – while Samples 070826-CGNV-Pb1 and

070826-CGNV-Pb4 (white paint on drywall) contained lead at much lower concentrations (29.3 mg/kg and 31.5

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 8 of 21 mg/kg, respectively). Sample 070826-CGNV-Pb3 (white paint on drywall, Men’s South Locker Room, D wall) was non-detect. AESS recommends the following:

• Although none of the sampled painted surfaces meet the federal regulatory definition of lead-based paint, all four locations contain detectable or presumed lead-containing paint and should be handled in accordance with the OSHA Lead in Construction Standard (29 CFR 1926.62) – including exposure assessment, engineering controls, and personal protective equipment as warranted by the specific task – whenever these surfaces are disturbed by demolition, cutting, sanding, grinding, or removal activity.

• Given its markedly higher concentration relative to the other samples, the painted concrete surface at the

Men’s South Locker Room B wall (Sample 070826-CGNV-Pb2) should be treated with particular caution during any disturbance, and additional confirmatory sampling should be considered if a larger area of similar concrete paint is planned for disturbance.

• Debris and waste generated from removal or disturbance of the identified lead-containing paint should be evaluated for appropriate hazardous waste characterization (e.g., TCLP or California TTLC) prior to disposal, consistent with California hazardous waste regulations.

• As with asbestos, any suspect painted or coated material outside the scope of this survey should be presumed to contain lead or should be sampled prior to disturbance.

7.0 Report Limitations

This report has been prepared for the exclusive use of the United States Coast Guard for the specific Site, scope, and purpose described herein. The findings and conclusions are based on conditions observed and materials sampled at the time of the July 8, 2026 field survey and on the analytical results provided by Schneider

Laboratories Global, Inc. AESS did not sample every material or every location within the facility; materials of similar appearance located in inaccessible or concealed areas were not inspected. Actual conditions may vary from those described in this report, and this report should not be relied upon as a comprehensive, building-wide hazardous materials survey. This report is not intended, and should not be used, as a bidding or specification document for abatement work without further review and, if necessary, additional sampling by AESS.

8.0 Certification

Field sample collection for this survey was performed by Matt Bailey and Alfred Myers of AESS, per the chain-of-custody documentation. This report was prepared and reviewed by Kelly Kilpatrick, Certified Asbestos Consultant

(CAC), of AESS. Copies of applicable state certifications held by field and reporting personnel are included as

Appendix C.

Matt Bailey

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Field Sampling Technician

Cal/OSHA Certified Site Surveillance Technician (CSST) No. 25-7954, exp. 08/15/2027

CDPH Lead Sampling Technician Certificate No. LRC-00013695, exp. 01/23/2027

Alfred Myers

Field Sampling Technician

Cal/OSHA Certified Site Surveillance Technician (CSST) No. 26-8095, exp. 02/20/2027

CDPH Lead Sampling Technician Certificate No. LRC-00014733, exp. 09/29/2026

Kelly Kilpatrick

Report Preparer / Reviewer

Cal/OSHA Certified Asbestos Consultant (CAC) No. 24-7696, exp. 08/16/2027

CDPH Lead Inspector/Assessor Certificate No. LRC-00009599, exp. 01/11/2027

CDPH Lead Project Monitor Certificate No. LRC-00011326, exp. 06/05/2027

CDPH Lead Sampling Technician Certificate No. LRC-00000010, exp. 04/20/2027

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Appendix A – Laboratory Analytical Report: Asbestos (PLM)

Schneider Laboratories Global, Inc. – Order No. 696514.

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Appendix B – Laboratory Analytical Report: Lead

Schneider Laboratories Global, Inc. – Order No. 696516, including total lead (AA) results for four bulk paint samples (070826-CGNV-Pb1 through -Pb4) and chain-of-custody documentation.

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