A6 - VSFB-Limited Asbestos Survey-B383534_B10577 C-Wing.pdf
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- FA461026Q0047
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This is a bulk asbestos analysis report from SGS Environmental Services documenting laboratory testing results for samples collected at Vandenberg Space Force Base, Building 10577, on April 24, 2026. The analysis was conducted for MEC Environmental Inc. (Client ID 6342) at their facility in Edwards, California, with testing performed in accordance with EPA Method 40CFR Part 763, Appendix E to Subpart E and EPA 600/R-93-116 Visual Area Estimation standards. Nine bulk samples were submitted and analyzed, with results generated under NVLAP Lab Code 101459-0 and report number B383534, dated April 28, 2026.
The testing results indicate that six samples (Mec-01 through Mec-06) showed no detected (ND) asbestos across all analyzed layers, which included various carpet, backing, and mastic materials in light yellow, white, grey, tan, and off-white colors. Three samples (Mec-07, Mec-08, and Mec-09) detected trace levels of chrysotile asbestos in black mastic layers, below the 1% limit of quantification threshold. All samples contained non-asbestos fibrous components, primarily synthetic materials ranging from trace amounts to 60%, with minor cellulose components. The report notes that samples showing trace asbestos detection represent the presence of asbestos below the quantification limit and do not constitute a quantifiable percentage. Laboratory supervisor Maria Cosper certified the results, and all samples were received in acceptable condition. SGS reserves the right to dispose of samples after 30 days unless otherwise specified.
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Final Report
(EPA Method 40CFR, Part 763, Appendix E to Subpart E and EPA 600/R-93-116, Visual Area Estimation)
Bulk Asbestos Analysis NVLAP Lab Code: 101459-0
6342Client ID:MEC, Inc.
B383534Report Number:Rene Menendez
Date Received:4949 Contractor Road / Trailer M 04/28/26Date Analyzed:
04/28/26Date Printed:Edwards, CA 93523-0278
First Reported:
6342261-910; Vandenberg SFB, Vandenberg SFB Bldg 10577 SGSFL Job ID:Job ID/Site:
Date(s) Collected: 04/24/2026
9Total Samples Submitted:
Total Samples Analyzed: 9
04/28/26
04/28/26
Sample ID Lab Number Asbestos
Type Percent in
Layer Asbestos AsbestosPercent in Percent in
Type TypeLayer Layer
Mec-01 12858428
Layer: Light Yellow Mastic ND
Layer: White Non-Fibrous Material ND
Total Percentage Values of Non-Asbestos Fibrous Components:
Mec-02 12858429
Layer: White Woven Material ND
Layer: Light Yellow Mastic ND
Layer: White Non-Fibrous Material ND
Total Percentage Values of Non-Asbestos Fibrous Components:
Cellulose (10 %) Synthetic (5 %)
Mec-03 12858430
Layer: Grey Carpet ND
Layer: Tan Backing ND
Layer: Tan Mastic ND
Total Percentage Values of Non-Asbestos Fibrous Components:
Synthetic (60 %)
Mec-04 12858431
Layer: Tan Mastic ND
Total Percentage Values of Non-Asbestos Fibrous Components:
Cellulose (Trace)
Mec-05 12858432
Layer: Grey Carpet ND
Layer: Off-White Backing ND
Layer: Tan Mastic ND
Total Percentage Values of Non-Asbestos Fibrous Components:
Synthetic (60 %)
Mec-06 12858433
Layer: Grey Carpet ND
Layer: Off-White Backing ND
Layer: Tan Mastic ND
Total Percentage Values of Non-Asbestos Fibrous Components:
Synthetic (60 %)
19743 Cabot Blvd., Hayward, CA 94545 | Phone: 510.887.8828 | https://www.sgs-ehsusa.com/
Report Number: B383534
Date Printed: 04/28/26Client Name: MEC, Inc.
Sample ID Lab Number Asbestos
Type Percent in
Layer Asbestos AsbestosPercent in Percent in
Type TypeLayer Layer
Mec-07 12858434
Layer: Tan Mastic ND
Layer: Black Mastic Chrysotile Trace
Total Percentage Values of Non-Asbestos Fibrous Components:
Cellulose (Trace)
Mec-08 12858435
Layer: Green Mastic ND
Layer: Black Mastic Chrysotile Trace
Total Percentage Values of Non-Asbestos Fibrous Components:
Cellulose (Trace)
Mec-09 12858436
Layer: Green Mastic ND
Layer: Black Mastic Chrysotile Trace
Total Percentage Values of Non-Asbestos Fibrous Components:
Cellulose (Trace)
Inhomogeneous samples are separated into homogenous subsamples and analyzed individually. Analytical results and reports are generated by SGS at the request of and for the exclusive use of the person or entity (client) named on such report. Results, reports or copies of same will not be released by SGS to any third party without prior written request from client. This report applies only to the sample(s) tested. Supporting laboratory documentation is available upon request. This report must not be reproduced except in full, unless approved by SGS. The client is solely responsible for the use and interpretation of test results and reports requested from SGS. This report must not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. Government. SGS is not able to assess the degree of hazard resulting from materials analyzed. SGS reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified. All samples were received in acceptable condition unless otherwise noted.
Note: Limit of Quantification ('LOQ') = 1%. 'Trace' denotes the presence of asbestos below the LOQ. 'ND' = 'None Detected'.
Maria Cosper, Laboratory Supervisor, Hayward Laboratory
19743 Cabot Blvd., Hayward, CA 94545 | Phone: 510.887.8828 | https://www.sgs-ehsusa.com/
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