26-092 USCG Station Lake Tahoe - Survey Report.pdf

Advantage Environmental & Safety Services

ASBESTOS AND LEAD SURVEY REPORT

United States Coast Guard – Station Lake Tahoe

2500 Lake Forest Road, Tahoe City, California 96145

U.S. Coast Guard Station Lake Tahoe – site entrance

AESS Job Number: 26-092

Survey / Sample Collection Date: July 3, 2026

Report Date: August 3, 2026

Prepared For: United States Coast Guard – Station Lake Tahoe

Prepared By:

Advantage Environmental & Safety Services

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

Asbestos and Lead Survey Report

USCG Station Lake Tahoe – Job No. 26-092

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 2 of 17

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) Station Lake Tahoe, located at 2500 Lake Forest Road, Tahoe City, California 96145 (the “Site”). The survey was performed on July 3, 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 galley identified on the sample location diagram provided as Figure 1

(Section 5.3).

Five (5) bulk samples (representing 15 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.

Three (3) bulk samples were collected and submitted for lead analysis by flame atomic absorption spectroscopy

(EPA Method 7000B). Detectable lead was identified in one (1) of the three samples — white paint on drywall located at the southeast corner of the galley — at a concentration of 72.0 mg/kg (0.0072% by weight), which is well 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 two 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 diagram (Figure 1) 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 Station Lake Tahoe. 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 to identify homogeneous areas of suspect asbestos-containing and lead-containing materials.

• Collection of five (5) representative bulk samples of suspect ACM in general accordance with 40 CFR Part

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

• Collection of three (3) representative bulk samples of suspect lead-containing materials (paint and ceramic tile).

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

• 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

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 3 of 17 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 Station Lake Tahoe facility located at 2500 Lake Forest Road, Tahoe City, Placer County, California. The area surveyed was the galley (kitchen), as depicted in the sample location diagram (Figure 1, Section 5.3). Suspect materials sampled included drywall and joint compound (taping mud) at the galley wall corners, 6-inch by 6-inch ceramic wall and floor tile with associated setting materials (thin-set and grout), painted drywall, and painted wood trim.

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.

5.0 Summary of Findings

5.1 Asbestos Analytical Results

Five bulk samples (Schneider Laboratories Order No. 695693), representing 15 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.

Sample ID Location Material Sampled Asbestos Result 070326-CGLT-1 Galley – SW Corner Drywall, taping mud None Detected

070326-CGLT-2 Galley – SE Corner Drywall, taping mud None Detected

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 4 of 17

070326-CGLT-3 Galley – NE Corner Drywall, taping mud None Detected

070326-CGLT-4 Galley – West Wall (near door)

6" x 6" ceramic floor tile (brown), thin-set, grout

None Detected

070326-CGLT-5 Galley – North Wall 6" x 6" ceramic wall tile (brown), thin-set, grout None Detected

Table 1. Asbestos (PLM) bulk sample summary – Schneider Laboratories Order No. 695693.

5.2 Lead Analytical Results

Three bulk samples (Schneider Laboratories Order No. 695693) were submitted for total lead analysis.

Detectable lead was identified in Sample 070326-CGLT-Pb1 (white paint on drywall) at 72.0 mg/kg (0.0072% by weight). This concentration is well below the current federal regulatory threshold defining lead-based paint

(0.50% by weight / 5,000 mg/kg) but confirms the presence of lead in this material. No lead was detected above the laboratory reporting limit in the remaining two samples. Results are summarized in Table 2; the complete laboratory report is included as Appendix B.

Sample ID Location Material Sampled Result % by Wt.

070326-CGLT-Pb1 Galley – SE Corner White paint on drywall 72.0 mg/kg 0.0072%

070326-CGLT-Pb2 Galley – SW Corner Blue paint on wood <25.5 mg/kg <0.0025 5%

070326-CGLT-Pb3 Galley – West Wall (near door)

6" x 6" ceramic floor tile (brown), thin-set, grout

<14.9 mg/kg <0.0014 9%

Table 2. Lead bulk sample summary – Schneider Laboratories Order No. 695693. Federal lead-based paint threshold (as of 7/1/26): 0.50% by weight /

5,000 mg/kg.

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 5 of 17

5.3 Sample Location Diagram

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

3, 2026 survey. Yellow highlighting indicates no asbestos or lead was reported for that sample; red highlighting denotes the sample location where lead was detected (Sample Pb1, discussed in Section 5.2). No samples returned positive results for asbestos.

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 6 of 17

Figure 1. Sample location diagram, USCG Station Lake Tahoe (Job No. 26-092).

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 7 of 17

6.0 Conclusions and Recommendations

6.1 Asbestos

No asbestos-containing material was identified in any of the five samples (15 layers) collected within the area 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 the sample location diagram (Figure 1), 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 the white paint on drywall (Sample Pb1) located at the southeast corner of the galley, at 0.0072% by weight (72.0 mg/kg). Although this concentration falls well below the federal regulatory definition of “lead-based paint,” it confirms lead is present in this painted surface. AESS recommends the following:

• Personnel performing demolition, sanding, scraping, or removal of the identified painted drywall (Sample

Pb1 location) 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 two remaining sampled materials (painted wood trim and ceramic floor tile) 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 3, 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

Shawn Jenkins Highlight

Shawn Jenkins Highlight

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 8 of 17 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 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

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

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 9 of 17

Appendix A – Laboratory Analytical Report: Asbestos (PLM)

Schneider Laboratories Global, Inc. – Order No. 695693, including chain-of-custody documentation.

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 10 of 17

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 11 of 17

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 12 of 17

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 13 of 17

Appendix B – Laboratory Analytical Report: Lead

Schneider Laboratories Global, Inc. – Order No. 695693, including chain-of-custody documentation.

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 14 of 17

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 15 of 17

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 16 of 17

Appendix C – Personnel Certifications

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

Matt Bailey – Field Sampling Technician

Advantage Environmental & Safety Services | Confidential – Prepared for U.S. Coast Guard | Page 17 of 17

Kelly Kilpatrick – Report Preparer / Reviewer