26-092 USCG Sector San Francisco - Survey Report.pdf

Advantage Environmental & Safety Services

ASBESTOS AND LEAD SURVEY REPORT

United States Coast Guard – Sector San Francisco

1 Yerba Buena Road, San Francisco, California 94130

U.S. Coast Guard Sector San Francisco – site entrance

AESS Job Number: 26-092

Survey / Sample Collection

Date:

July 7, 2026

Report Date: August 4, 2026

Prepared For: United States Coast Guard – Sector San Francisco

Prepared By: Advantage Environmental & Safety Services (AESS)

Asbestos and Lead Survey Report

USCG Sector San Francisco – 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) Sector San Francisco facility, located at 1 Yerba Buena Road, San Francisco, California 94130 (the “Site”). The survey was performed on July 7, 2026 by Matt Bailey, Certified Site Surveillance Technician (CSST) and Lead Sampling Technician, and

Alfred Myers, Lead Sampling Technician, of AESS, and consisted of representative bulk sampling of suspect asbestos-containing materials (ACM) and suspect lead-containing building materials within five buildings

(Buildings 1, 24, 25, 26, and 27) identified on the sample location diagrams provided as Figures 1 through 5

(Section 5.3).

Thirty-eight (38) bulk samples (representing 95 individual material layers) were collected and submitted for

Polarized Light Microscopy (PLM) analysis of asbestos content. No asbestos was detected in any sample layer submitted. Eighteen (18) bulk samples were collected and submitted for lead analysis by flame atomic absorption spectroscopy (EPA Method 7000B). Detectable lead was identified in three (3) of the eighteen samples — white paint on drywall at three separate locations — at concentrations of 30.7 mg/kg (0.00307% by weight, Sample 070726-CGYB-Pb5, Building 26), 41.1 mg/kg (0.00411% by weight, Sample 070726-CGYB-Pb9, Building 25), and 28.0 mg/kg (0.0028% by weight, Sample 070726-CGYB-Pb17, Building 1), all below the federal regulatory definition of lead-based paint (≥ 0.50% by weight / ≥ 5,000 mg/kg). No lead was detected above the laboratory reporting limit in the remaining fifteen samples.

A summary of findings and AESS recommendations is provided in Sections 5.0 and 6.0 of this report. Complete laboratory analytical reports, chain-of-custody documentation, and the sample location diagrams (Figures 1–5) are included as Appendices A and B, with applicable personnel certifications 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 Sector San Francisco. 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:

• A visual survey of designated interior spaces within Buildings 1, 24, 25, 26, and 27 to identify homogeneous areas of suspect asbestos-containing and lead-containing materials.

• Collection of thirty-eight (38) representative bulk samples of suspect ACM in general accordance with 40 CFR

Part 763 (AHERA) protocols.

• Collection of eighteen (18) representative bulk samples of suspect lead-containing materials (paint and ceramic tile/glaze).

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

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• Preparation of sample location diagrams 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 diagrams in Figures 1–5 (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 Sector San Francisco facility located at 1 Yerba Buena Road, San Francisco, California. The areas surveyed include restroom, locker, and office spaces within five separate buildings — Building 1 (locker building) and Buildings 24, 25, 26, and 27 (office/restroom buildings) — together with associated corridor space, as depicted in the sample location diagrams (Figures 1–5, Section 5.3). Suspect materials sampled included ceramic wall and floor tile with associated setting materials (grout, thin-set, mortar, and cement), painted drywall, texture and joint compound systems, FRP glue, window glazing, floor and concrete coatings, and plaster.

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., tile / setting bed / grout, or drywall / joint compound / texture) were analyzed and reported by individual layer.

4.2 Lead Sampling and Analysis

Suspect lead-containing painted surfaces and ceramic tile/glaze 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 are reported in milligrams of lead per kilogram of sample (mg/kg, equivalent to parts per million) and as percent lead by dry weight.

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5.0 Summary of Findings

5.1 Asbestos Analytical Results

Thirty-eight bulk samples (Schneider Laboratories Order No. 696512), representing 95 analyzed material layers, were submitted for PLM analysis. No asbestos fibers were detected in any layer of any sample. 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. 696512. R/S = restroom/shower, WRR = women's restroom, MRR = men's restroom, RR = restroom.

Sample ID Location Material Sampled Asbestos Result

070726-CGYB-1 B27 – WRR, 1st Floor, under sink

2" ceramic wall tile (tan), grout, thin-set None Detected

070726-CGYB-2 B27 – WRR, 1st Floor, B wall Taping compound, drywall None Detected 070726-CGYB-3 B27 – WRR, 1st Floor, shower area FRP glue None Detected

070726-CGYB-4 B27 – WRR, 1st Floor, at entrance

2" ceramic floor tile (tan w/black spots), grout, thin-set

None Detected

070726-CGYB-5 B27 – MRR, 2nd Floor, C wall Taping compound, drywall None Detected 070726-CGYB-6 B27 – MRR, 2nd Floor, shower area FRP glue None Detected

070726-CGYB-7 B27 – MRR, 2nd Floor, shower area

2" ceramic wall tile (tan), grout, thin-set None Detected

070726-CGYB-8 B27 – MRR, 2nd Floor, entrance

2" ceramic floor tile (tan w/black spots), grout, thin-set

None Detected

070726-CGYB-9 B26 – WRR, 2nd Floor, A wall Texture, taping compound, drywall None Detected

070726-CGYB-

B26 – WRR, 2nd Floor, B wall 2" ceramic floor tile (grey), grout, glue None Detected

070726-CGYB-

B26 – WRR, 2nd Floor, B wall 4" ceramic wall tile (white), glue None Detected

070726-CGYB-

B26 – MRR, 2nd Floor, A wall Texture, taping compound, drywall None Detected

070726-CGYB-

B26 – WRR, 1st Floor, A wall 2" ceramic floor tile (grey), grout, thin-set None Detected

070726-CGYB-

B26 – WRR, 1st Floor, A wall 4" ceramic wall tile (white), glue None Detected

070726-CGYB-

B26 – RR, 1st Floor, D wall Texture, taping compound, drywall None Detected

070726-CGYB-

B26 – RR, 1st Floor, D wall 6" ceramic wall tile (white), grout, glue None Detected

070726-CGYB-

B26 – RR, 1st Floor, C wall Plaster None Detected

070726-CGYB-

B25 – RR, 1st Floor (Rm 2503), B wall

2" ceramic wall tile (tan), grout, cement None Detected

070726-CGYB-

B25 – RR, 1st Floor (Rm 2503), B wall

Texture, drywall, taping compound None Detected

070726-CGYB-

B25 – RR, 1st Floor (Rm 2503), B wall

Drywall, taping compound None Detected

070726-CGYB-

B25 – RR, 1st Floor (Rm 2506) 2" ceramic floor tile (tan w/black spots), grout, cement

None Detected

070726-CGYB-

B24 – WRR, 1st Floor, under sink

2" ceramic floor tile (grey), grout, thin-set None Detected

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070726-CGYB-

B24 – WRR, 1st Floor, under sink

Beige ceramic floor tile (2nd layer), mortar None Detected

070726-CGYB-

B24 – WRR, 1st Floor, A wall 4" wall tile (white), grout, glue None Detected

070726-CGYB-

B24 – WRR, 1st Floor, D wall Texture, taping compound, drywall None Detected

070726-CGYB-

B24 – RR, 1st Floor, D wall 6" ceramic wall tile (white), grout, thin-set None Detected

070726-CGYB-

B24 – WRR, 2nd Floor, A wall Texture, taping compound, drywall None Detected

070726-CGYB-

B24 – MRR, 2nd Floor, A wall 2" ceramic (dk. grey) floor tile, grout, thin-set None Detected

070726-CGYB-

B1 – M Locker, center Floor coating, concrete None Detected

070726-CGYB-

B1 – M Locker, center Concrete coating None Detected

070726-CGYB-

B1 – M Locker, C wall FRP glue None Detected

070726-CGYB-

B1 – M Locker, entrance Texture, taping compound, drywall None Detected

070726-CGYB-

B1 – W Locker, D wall Floor coating None Detected

070726-CGYB-

B1 – W Locker, center wall White coating on pillar None Detected

070726-CGYB-

B1 – W Locker, center wall Texture, taping compound, drywall None Detected

070726-CGYB-

B1 – W Locker, south window Window glazing None Detected

070726-CGYB-

B1 – M Locker, east window Window glazing None Detected

070726-CGYB-

B1 – W Locker, south wall FRP glue None Detected

5.2 Lead Analytical Results

Eighteen bulk samples (Schneider Laboratories Order No. 696513) were submitted for total lead analysis.

Detectable lead was identified in three samples: 070726-CGYB-Pb5 (30.7 mg/kg, 0.00307% by weight; white paint on drywall, Building 26), 070726-CGYB-Pb9 (41.1 mg/kg, 0.00411% by weight; white paint on drywall, Building 25), and 070726-CGYB-Pb17 (28.0 mg/kg, 0.0028% by weight; white paint on drywall, Building 1). All three concentrations are below the current federal regulatory threshold defining lead-based paint (0.50% by weight / 5,000 mg/kg) but confirm the presence of lead in these painted surfaces. No lead was detected above the laboratory reporting limit in the remaining fifteen samples. Results are summarized in Table 2; the complete laboratory report is included as Appendix B.

Table 2. Lead bulk sample summary – Schneider Laboratories Order No. 696513. Federal lead-based paint threshold: 0.50% by weight / 5,000 mg/kg.

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Sample ID Location Material Sampled Result % by Wt.

070726-CGYB-

Pb1

B27 – WRR, 1st Floor, under sink

2" ceramic wall tile (tan) <15.7 mg/kg <0.00157%

070726-CGYB-

Pb2

B27 – WRR, 1st Floor, B wall

White paint on drywall <23.4 mg/kg <0.00234%

070726-CGYB-

Pb3

B27 – MRR, 1st Floor, at entrance

2" ceramic floor tile (tan w/black spots)

<15.8 mg/kg <0.00158%

070726-CGYB-

Pb4

B26 – WRR, 2nd Floor, B wall

4" ceramic wall tile (white), glue <15.5 mg/kg <0.00155%

070726-CGYB-

Pb5

B26 – WRR, 2nd Floor, B wall

White paint on drywall 30.7 mg/kg 0.00307%

070726-CGYB-

Pb6

B26 – WRR, 2nd Floor, B wall

2" ceramic floor tile (grey) <15.0 mg/kg <0.0015%

070726-CGYB-

Pb7

B26 – MRR, 2nd Floor, A wall

White paint on drywall <26.3 mg/kg <0.00263%

070726-CGYB-

Pb8

B26 – RR, 1st Floor, D wall 6" ceramic wall tile (white) <16.0 mg/kg <0.0016%

070726-CGYB-

Pb9

B25 – RR, 1st Floor (Rm 2503), D wall

White paint on drywall 41.1 mg/kg 0.00411%

070726-CGYB-

Pb10

B25 – RR, 1st Floor (Rm 2503), B wall

2" ceramic wall tile (tan) <14.6 mg/kg <0.00146%

070726-CGYB-

Pb11

B25 – RR, 1st Floor (Rm 2506)

2" ceramic floor tile (tan w/black spots)

<14.6 mg/kg <0.00146%

070726-CGYB-

Pb12

B24 – WRR, 1st Floor, A wall

4" wall tile (white) <15.4 mg/kg <0.00154%

070726-CGYB-

Pb13

B24 – WRR, 1st Floor, under sink

Beige ceramic floor tile (2nd layer)

<16.0 mg/kg <0.0016%

070726-CGYB-

Pb14

B24 – WRR, 1st Floor, under sink

2" ceramic floor tile (grey, 1st layer)

<15.9 mg/kg <0.00159%

070726-CGYB-

Pb15

B24 – WRR, 1st Floor, center

White paint on drywall <26.4 mg/kg <0.00264%

070726-CGYB-

Pb16

B24 – RR, 1st Floor, D wall 6" ceramic wall tile (white) <15.1 mg/kg <0.00151%

070726-CGYB-

Pb17

B1 – M Locker, near entrance

White paint on drywall 28.0 mg/kg 0.0028%

070726-CGYB-

Pb18

B1 – W Locker, near entrance

White paint on drywall <25.5 mg/kg <0.00255%

5.3 Sample Location Diagrams

Figures 1 through 5 depict the approximate location of each asbestos (PLM) and lead (Pb) sample collected during the July 7, 2026 survey, one figure per building. Yellow highlighting indicates no asbestos or lead was reported for that sample; the three samples associated with detected lead (070726-CGYB-Pb5, 070726-CGYB-

Pb9, and 070726-CGYB-Pb17) are highlighted per the color key shown on each diagram. No samples returned positive results for asbestos.

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Figure 1. Sample location diagram, Building 27, USCG Sector San Francisco (Job No. 26-092).

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Figure 2. Sample location diagram, Building 26, USCG Sector San Francisco (Job No. 26-092).

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Figure 3. Sample location diagram, Building 25, USCG Sector San Francisco (Job No. 26-092).

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Figure 4. Sample location diagram, Building 24, USCG Sector San Francisco (Job No. 26-092).

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Figure 5. Sample location diagram, Building 1, USCG Sector San Francisco (Job No. 26-092).

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6.0 Conclusions and Recommendations

6.1 Asbestos

No asbestos-containing material was identified in any of the thirty-eight samples (95 layers) collected within the areas surveyed. No special handling, abatement, or notification requirements under 40 CFR Part 61 (NESHAP), 40

CFR Part 763 (AHERA), or applicable Cal/OSHA asbestos regulations are triggered for the sampled materials in the sampled locations based on these results.

This finding applies only to the specific materials and locations sampled. Per the note on each sample location diagram (Figures 1–5), any suspect material encountered outside the scope of this survey that is 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 white paint on drywall at three locations: Building 26 (Sample 070726-CGYB-

Pb5, 0.00307% by weight), Building 25 (Sample 070726-CGYB-Pb9, 0.00411% by weight), and Building 1 (Sample

070726-CGYB-Pb17, 0.0028% by weight). Although these concentrations fall below the federal regulatory definition of “lead-based paint,” they confirm lead is present in the painted drywall at these three locations.

AESS recommends the following:

• Personnel performing demolition, sanding, cutting, or removal of painted drywall at the 070726-CGYB-Pb5, 070726-CGYB-Pb9, and 070726-CGYB-Pb17 sample locations should be made aware that the material contains lead and should follow applicable OSHA Lead in Construction Standard (29 CFR 1926.62) requirements, including exposure assessment as warranted by the specific task and controls performed.

• Debris and waste generated from removal of the lead-containing painted drywall should be evaluated for appropriate disposal classification (e.g., TCLP or total threshold limit concentration [TTLC] waste characterization) prior to disposal, consistent with California hazardous waste regulations.

• The remaining fifteen sampled materials (ceramic wall and floor tile and additional painted drywall locations) did not contain lead above the laboratory reporting limit and are not subject to lead-specific handling requirements based on these results.

• As with asbestos, any suspect painted or glazed 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 7, 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

Shawn Jenkins Highlight

Shawn Jenkins Highlight

Shawn Jenkins Highlight

Shawn Jenkins Highlight

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8.0 Certification

Field sample collection for this survey was performed by Matt Bailey and Alfred Myers of AESS. 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

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. 696512, including chain-of-custody documentation.

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Appendix B – Laboratory Analytical Report: Lead

Schneider Laboratories Global, Inc. – Order No. 696513, including chain-of-custody documentation.

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Appendix C – Personnel Certifications

State of California certifications held by AESS personnel performing and preparing this survey.

Matt Bailey – Field Sampling Technician

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Alfred Myers – Field Sampling Technician

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Kelly Kilpatrick – Report Preparer / Reviewer