Building 142 Asbestos Lead Paint Dust Sampling.pdf

605A Russell Parkway Warner Robins, Georgia 30144

PH 678.202.9500

FAX 678.202.9501

www.geosyntec.com

GW11069 - Building 142 Dust Sampling 1

M E M O R A N D U M

TO: Dr. Jay Brown, ZAPATA

CC: Ms. Tamara Hebeler, Geosyntec Consultants

FROM: Mr. Zain Webb, Geosyntec Consultants Mr. Justin Knight, Geosyntec Consultants

DATE: 4 December 2024 (Rev 01)

SUBJECT: Building 142 Asbestos and Lead Paint Surveys and Dust Sampling Robins Air Force Base, Georgia Contract No. FA8501-22-D0003

INTRODUCTION

Building 142 is located at Robins Air Force Base (Robins AFB or Base), Georgia. Geosyntec Consultants, Inc. (Geosyntec) understands that the Base plans to renovate the heating ventilation and air conditioning (HVAC) system in the Blast Shop by removing the existing HVAC units and all associated ductwork, piping, and electrical connections. As such, the Base requested an investigation within the renovation areas for the presence of asbestos-containing materials (ACM), lead-containing paint (LCP) coatings, and heavy metals and polychlorinated biphenyls (PCBs) in dust. ZAPATA subcontracted Geosyntec under their Basic A-E Indefinite Delivery/Indefinite Quantity (IDIQ) contract with Robins AFB to perform these surveys.

The remainder of this memorandum presents: (i) a summary of the completed ACM and LCP surveys; (ii) a summary of the dust sampling activities; (iii) an evaluation of the dust sample analytical results; and (iv) conclusions and recommendations.

SUMMARY OF ACM AND LCP SURVEYS

On 21 October 2024, Geosyntec’s subcontractor, A1A Environmental, Inc. (A1A), performed an ACM and LCP survey at Building 142. The survey activities were conducted in advance of interior and exterior renovations at Building 142.

Dr. Jay Brown, ZAPATA Building 142 Dust Sampling 4 December 2024 (Rev 01)

GW11069 - Building 142 Dust Sampling 2

The ACM survey included collection of 18 bulk samples of suspect materials. Based on the analytical results of the bulk samples, ACM was identified in 9 samples collected:

White and blue friable insulation and canvas wrap debris on top of the IVD Room (3 samples);

Canvas wrap over friable pipe insulation on hot water/steam piping throughout Blast Shop area (3 samples);

Canvas wrap over friable pipe fitting insulation on hot water/steam piping throughout Blast Shop area (1 sample); and

Panel seam caulk in ETR outdoor air hood (2 samples).

At the direction of the Base, samples of roof materials were not collected. Therefore, it is unknown if the roof materials will be disturbed during the renovation project. The roof and roof flashing materials should be presumed to be ACM until testing is complete.

The LCP survey included collection of 10 samples of suspect paint. Based on the analytical results of paint samples, LCP was identified in 10 of the 10 paint samples collected:

Blue paint on exterior roll up door metal frame;

Black paint on interior roll up door metal frame;

White paint on metal frame associated with interior roll up door;

Blue paint on vertical I-beam;

Blue paint on horizontal I-beam;

Black paint on blast area roll up door frame;

Tan paint on metal ETR panels;

Tan paint on metal equipment shrouds;

Red paint on RTU structural framing; and

Blue paint on interior ventilation ductwork.

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GW11069 - Building 142 Dust Sampling 3

Survey activity details and results are presented in Attachment 1 (Asbestos-Containing Material and Lead-Containing Paint Survey Report, Building 142, Robins Air Force Base, Georgia), which was prepared by A1A.

SUMMARY OF DUST SAMPLING ACTIVITIES

Field activities included the collection of dust samples. The sampling tasks were conducted on 21 October 2024.

A total of 24 dust samples from 24 locations were collected within the proposed renovation area of the building (i.e., study area). The approximate sample locations are shown on Figure 1.

Photographs documenting conditions at each dust sample location are included in Attachment 2.

The dust samples were collected using wipe sampling techniques in general accordance with American Society for Testing and Materials (ASTM) 6966 (Standard Practice for Collection of Settled Dust Samples Using Wipe Sampling Methods for Subsequent Determination of Metals).

Wipe samples were collected using a 10 centimeter (cm) by 10 cm template [100 square cm (cm2)] provided by Eurofins Environmental Testing (Eurofins) located in Savannah, Georgia.

Two wipe samples were collected at all 24 surface locations; one for polychlorinated biphenyl (PCBs) and a second for analysis of hexavalent chromium. One additional wipe sample was collected at 8 of the 24 surface locations representative of the proposed project renovation area for analysis of total recoverable metals, including Resource Conservation and Recovery Act (RCRA) 7 metals [i.e., arsenic, barium, cadmium, chromium (total), lead, selenium, and silver]. The pre-moistened wipes supplied by Eurofins were stored in protective containers. Wipes utilized for analysis of total metals were pre-moistened by the lab with acetic acid; wipes utilized for analysis of hexavalent chromium were pre-moistened by the lab with deionized water; and wipes utilized for analysis of PCBs were pre-moistened by the lab with hexane.

At each wipe sample location, a wipe was applied to the surface within the sampling area (i.e., a 100 cm2 template) with firm pressure and moved in vertical S-strokes three to four times. The exposed side of the wipe was then folded, and the unused side was wiped in horizontal S-strokes three to four times. The wipe was then folded again and placed in a labeled glass screw top container for shipment to the laboratory. New 100 cm2 templates were used at each sample location.

The dust samples were sent to Eurofins, a Department of Defense (DoD) Environmental Laboratory Accreditation Program (ELAP) laboratory, under chain of custody protocol. The analytical laboratory report is provided in Attachment 3.

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DUST SAMPLE ANALYTICAL RESULTS

Table 1 presents a summary of the dust sample results. As shown in Table 1, metals were detected above laboratory method detection limits (MDLs) in each of the 24 dust samples. As discussed previously, the wipe samples were collected using a 100 cm2 template; therefore, the analytical units are reported in terms of milligrams/100 cm2 (mg/100 cm2) for RCRA metals and hexavalent chromium and micrograms/100 cm2 (µg/100 cm2) for PCBs.

Below is a brief summary of the RCRA metals concentrations detected in the wipe samples.

Arsenic concentrations ranged from non-detect (B142-Dust-06, B142-Dust-14) to 0.0054 mg/100 cm2 (B142-Dust-04);

Barium concentrations ranged from 0.037 mg/100 cm2 (B142-Dust-06) to 0.13 mg/100 cm2 (B142-Dust-04);

Cadmium concentrations ranged from 0.012 mg/100 cm2 (B142-Dust-03) to 3.8 mg/100 cm2 (B142-Dust-04);

Total chromium concentrations ranged from 0.096 mg/100 cm2 (B142-Dust-01) to 0.27 mg/100 cm2 (B142-Dust-03);

Hexavalent chromium concentrations ranged from 0.00067 J (estimated) mg/100 cm2 (B142-Dust-01) to 0.075 mg/100 cm2 (B142-Dust-04);

Lead concentrations ranged from 0.042 mg/100 cm2 (B142-Dust-01) to 3.3 mg/100 cm2 (B142-Dust-20);

Selenium concentrations ranged from 0.0016 mg/100 cm2 (B142-Dust-20) to 0.011 mg/100 cm2 (B142-Dust-06, B142-Dust-07); and

Silver concentrations ranged from 0.0021 mg/100 cm2 (B142-Dust-01) to 0.035 mg/100 cm2 (B142-Dust-04).

Below is a brief summary of the PCB concentrations detected in the wipe samples. PCB-1016, PCB-1221, PCB-1232, PCB-1242, and PCB-1248 were not detected in the 24 dust samples.

PCB-1254 was detected in one sample (B142-Dust-22) at a concentration of 0.90 µg/100 cm2; and

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PCB-1260 concentrations ranged from non-detect (B142-Dust-01, B142-Dust-02, B142- Dust-03, B142-Dust-04, B142-Dust-06, B142-Dust-09, B142-Dust-12, B142-Dust-13, B142-Dust-14, B142-Dust-15, B142-Dust-16, B142-Dust-17, B142-Dust-18, B142-Dust- 19, B142-Dust-20, B142-Dust-21, B142-Dust-23, B142-Dust-24) to 7.5 µg/100 cm2 (B142-Dust-08).

It should be noted that the laboratory reported evidence of matrix interference in PCB samples B142-Dust-05, -08, -21, and -22. These samples had PCB-1268 present which causes positive interference with the surrogate DCB Decachlorobiphenyl.

Unlike soil and groundwater, there are no standards, and very few published guidelines or numerical limits, for evaluating surface contamination in dust. Therefore, it is difficult to quantify the significance of wipe sample tests results or to define when a surface is "clean". Some organizations [e.g., United States Army and the United States Environmental Protection Agency (US EPA)] have developed risk-based models that provide criteria for screening wipe sample results based on toxicological risk of dermal and inhalation exposure. Most of these risk-based models assume long-term direct exposure to the contaminants. Due to the lack of short-term exposure data, evaluating potential health risks from acute exposures (i.e., evaluation of the short-term risk to construction workers performing the repair/replacement work), is not feasible.

CONCLUSIONS AND RECOMMENDATIONS

ACM

The ACM identified within the surveyed area should be removed by a Georgia-licensed asbestos abatement contractor prior to the performance of any other work that will disturb these materials.

During the ACM survey, damaged asbestos-containing pipe and pipe fitting insulation debris was observed on the ground and appeared to have fallen from the top of the IVD Room. Geosyntec notified Zapata on 30 October 2024, and Zapata subsequently notified the appropriate Base personnel so that necessary actions could be conducted.

The remaining asbestos-containing pipe and pipe fitting insulation associated with the buildings steam piping system should be removed in areas expected to be disturbed by renovations prior to the demolition of any HVAC system components. Any components removed from the outer panels of the rooftop ETR Outdoor Air Hood should either be cleaned or disposed as asbestos-containing/contaminated materials. Removed roof flashing and roofing materials associated with equipment curbs should be presumed to be asbestos-containing materials unless asbestos content can be analytical evaluated by an accredited laboratory. If any suspect materials not addressed in this survey are encountered in conjunction with any renovation efforts, or change in scope of work, 4 December 2024 (Rev 01)

GW11069 - Building 142 Dust Sampling 6 it is recommended that samples of suspect materials be collected by an Asbestos Hazard Emergency Response Act (AHERA) accredited asbestos building inspector and analyzed by a National Voluntary Laboratory Accreditation Program (NVLAP) accredited laboratory to evaluate asbestos content.

LCP

The Occupational Safety and Health Administration (OSHA) Construction Industry Standard for Lead (29 CFR 1926.62) does not reference the EPA/Housing and Urban Development (HUD) definition for lead-based pain (LBP) (0.5% by weight or 1.0 mg/cm2). If detectable levels of lead are identified in any painted surface, paint disturbance will fall under the OSHA Lead Standard.

OSHA 29 CFR 1926.62 requires employers to perform exposure monitoring for employees whose tasks disturb or potentially disturb lead. The data contained in the survey report (Attachment 1) should be provided to the Contractor, prior to the Contractor submitting bids for maintenance, renovation or demolition work. Due to the presence of LCP [either LBP or paint containing lead (PCL)] in Building 142, only those contractors trained in accordance with OSHA 29 CFR 1926.62 should perform demolition or renovation activities that disturb the LCP coatings.

Waste generated by disturbance LCP surfaces scheduled to be disposed in a landfill should be subjected to Toxicity Characteristic Leaching Procedure (TCLP) testing to determine leachable metal concentrations. However, painted metal waste scheduled to be delivered to a metal recycling center does not require TCLP testing. If subject to TCLP testing and if leachable concentrations of RCRA metals in construction waste are determined by TCLP testing, those materials should be disposed of or recycled in accordance with EPA 40 CFR Part 260 to 271 and applicable State of Georgia Department of Natural Resources (DNR), Environmental Protection Division (EPD) Rules for Solid Waste Management (391-3-4) and Hazardous Waste Management (391-3-11). For lead, TCLP results greater than 5 milligrams per liter (mg/L) are considered hazardous lead waste (EP Toxicity) and carry a hazardous waste code under RCRA (40 CFR Part 261) of D008.

Dust

The purpose of the dust sampling efforts was to investigate the presence of potentially hazardous materials prior to initiation of renovation efforts. Due to the detections of metals and PCBs in the dust, it may be necessary to perform cleaning and/or containment actions prior to renovation activities that could potentially disturb the dust. Disturbance of the dust may cause the heavy metals and/or PCBs to redistribute onto other surfaces within Building 142.

As discussed previously, there are no standards for contaminant concentrations on surfaces or a definition of a “clean” surface. OSHA states that the sampling results must be interpreted on a site-

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GW11069 - Building 142 Dust Sampling 7 specific basis and against objective criteria established by the employer for assessing cleanliness.

Prior to renovation efforts, the results of this investigation should be shared with Bioenvironmental Engineering to develop a path forward strategy for addressing the contaminated dust identified as part of this investigation.

ATTACHMENTS

Table 1 – Summary of Dust Analytical Data Figure 1 – Dust Sample Location Map Attachment 1 – ACM and LCP Survey Report, Building 142, Robins AFB, Georgia (A1A) Attachment 2 – Photographic Log of Dust Sample Locations Attachment 3 – Laboratory Report for Dust Samples

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TABLE

Table 1(1)

Summary of Dust Analytical Data

Building 142 Dust Sampling Robins Air Force Base, Georgia

Sample ID B142-Dust-01 B142-Dust-02 B142-Dust-03 B142-Dust-04 B142-Dust-05 B142-Dust-06 B142-Dust-07 B142-Dust-08 Sample Date 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024

Metal (mg/100 cm2)(2) CAS No.

Arsenic 7440-38-2 0.0012 -- 0.0014 0.0054 -- 0.0010 U 0.0013 -- Barium 7440-39-3 0.076 -- 0.063 0.13 -- 0.037 0.049 -- Cadmium 7440-43-9 0.026 -- 0.012 3.8 -- 0.12 0.021 -- Chromium, Total 7440-47-3 0.096 -- 0.27 0.24 -- 0.14 0.21 -- Chromium, Hexavalent 18540-29-9 0.00067 J 0.0018 0.023 0.075 0.047 0.025 0.00089 J 0.033 Lead 7439-92-1 0.042 -- 0.12 0.85 -- 0.096 0.14 -- Selenium 7782-49-2 0.0056 -- 0.010 0.0047 -- 0.011 0.011 -- Silver 7440-22-4 0.0021 -- 0.0044 0.035 -- 0.0039 0.0064 --

PCB (µg/100 cm2)(2) CAS No.

PCB-1016 12674-11-2 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U M 0.50 U M 0.50 U M

PCB-1221 11104-28-2 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U

PCB-1232 11141-16-5 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U M 0.50 U M 0.50 U M PCB-1242 53469-21-9 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U M 0.50 U M 0.50 U M PCB-1248 12672-29-6 0.50 U 0.50 U M 0.50 U M 0.50 U M 0.50 U M 0.50 U M 0.50 U M 0.50 U M PCB-1254 11097-69-1 0.50 U 0.50 U M 0.50 U M 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U M

PCB-1260 11096-82-5 0.50 U M 0.50 U M 0.50 U M 0.50 U 1.9(3) 0.50 U 1.3 7.5(3)

Table1_B142_DustSummary Page 1 of 3 December 2024

Building 142 Dust Sampling Robins Air Force Base, Georgia

Sample ID B142-Dust-09 B142-Dust-10 B142-Dust-11 B142-Dust-12 B142-Dust-13 B142-Dust-14 B142-Dust-15 B142-Dust-16 Sample Date 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024

Metal (mg/100 cm2)(2) CAS No.

Arsenic 7440-38-2 -- -- -- -- -- 0.0010 U -- -- Barium 7440-39-3 -- -- -- -- -- 0.042 -- -- Cadmium 7440-43-9 -- -- -- -- -- 0.021 -- -- Chromium, Total 7440-47-3 -- -- -- -- -- 0.16 -- -- Chromium, Hexavalent 18540-29-9 0.048 0.026 0.061 0.0081 0.014 0.012 0.0023 0.0017 Lead 7439-92-1 -- -- -- -- -- 0.052 -- -- Selenium 7782-49-2 -- -- -- -- -- 0.0048 -- -- Silver 7440-22-4 -- -- -- -- -- 0.0052 -- --

PCB (µg/100 cm2)(2) CAS No.

PCB-1016 12674-11-2 0.50 U M 0.50 U M 0.50 U M 0.50 U 0.50 U M 0.50 U M 0.50 U M 0.50 U M

PCB-1221 11104-28-2 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U

PCB-1232 11141-16-5 0.50 U M 0.50 U M 0.50 U M 0.50 U 0.50 U M 0.50 U M 0.50 U M 0.50 U M PCB-1242 53469-21-9 0.50 U M 0.50 U M 0.50 U M 0.50 U 0.50 U M 0.50 U M 0.50 U M 0.50 U M PCB-1248 12672-29-6 0.50 U M 0.50 U M 0.50 U M 0.50 U M 0.50 U M 0.50 U M 0.50 U M 0.50 U M PCB-1254 11097-69-1 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U M 0.50 U M 0.50 U M 0.50 U M

PCB-1260 11096-82-5 0.50 U M 1.2 1.2 0.50 U 0.50 U M 0.50 U 0.50 U M 0.50 U

Table1_B142_DustSummary Page 2 of 3 December 2024

Building 142 Dust Sampling Robins Air Force Base, Georgia

Sample ID B142-Dust-17 B142-Dust-18 B142-Dust-19 B142-Dust-20 B142-Dust-21 B142-Dust-22 B142-Dust-23 B142-Dust-24 Sample Date 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024 10/21/2024

Metal (mg/100 cm2)(2) CAS No.

Arsenic 7440-38-2 -- -- -- 0.0044 0.0021 -- -- -- Barium 7440-39-3 -- -- -- 0.046 0.067 -- -- -- Cadmium 7440-43-9 -- -- -- 0.037 0.036 -- -- -- Chromium, Total 7440-47-3 -- -- -- 0.11 0.23 -- -- -- Chromium, Hexavalent 18540-29-9 0.012 0.0038 0.0049 0.023 0.0014 0.00071 J 0.0022 0.00091 J Lead 7439-92-1 -- -- -- 3.3 0.088 -- -- -- Selenium 7782-49-2 -- -- -- 0.0016 0.0092 -- -- -- Silver 7440-22-4 -- -- -- 0.013 0.0066 -- -- --

PCB (µg/100 cm2)(2) CAS No.

PCB-1016 12674-11-2 0.50 U 0.50 U M 0.50 U 0.50 U 0.50 U M 0.50 U M 0.50 U M 0.50 U

PCB-1221 11104-28-2 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U

PCB-1232 11141-16-5 0.50 U 0.50 U M 0.50 U 0.50 U 0.50 U M 0.50 U M 0.50 U M 0.50 U PCB-1242 53469-21-9 0.50 U 0.50 U M 0.50 U 0.50 U 0.50 U M 0.50 U M 0.50 U M 0.50 U PCB-1248 12672-29-6 0.50 U M 0.50 U M 0.50 U 0.50 U M 0.50 U M 0.50 U M 0.50 U 0.50 U M

PCB-1254 11097-69-1 0.50 U M 0.50 U 0.50 U 0.50 U M 0.50 U 0.90 0.50 U 0.50 U M

PCB-1260 11096-82-5 0.50 U M 0.50 U 0.50 U M 0.50 U M 0.50 U M(3) 3(3) 0.50 U 0.50 U M

Note:

Bold values are detections above the Method Detection Limit (MDL).

Data Qualifiers:

J: The analyte was identified but the quantitation is an estimate.

M: Manual integrated compound.

U: Constituent not detected above laboratory MDL.

Abbreviations:

CAS = Chemical Abstracts Service chemical identification.

cm2 = square centimeters.

ID = Identification.

mg = milligram.

No. = number.

PCB = Polychlorinated biphenyl.

µg = microgram.

"--" = Sample not collected.

Referenced Footnotes:

(1) Samples were collected using the laboratory supplied wipe sampling template, which is 10 cm by 10 cm (100 cm2).

(2) Samples were analyzed for Resource Conservation and Recovery Act (RCRA) 7 metals (i.e., arsenic, barium, cadmium, chromium, lead, selenium, and silver) by United States Environmental Protection Agency (US EPA) Method 6010, for hexavalent chromium by US EPA Method 7199, and for PCBs by US EPA Method 8081/8082.

(3) Evidence of matrix interference is present; therefore, re-extraction and/or re-analysis was not performed. The sample has PCB-1268 present, which causes positive interference with the surrogate DCB Decachlorobiphenyl.

Table1_B142_DustSummary Page 3 of 3 December 2024

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FIGURE

RARA

EXISTING STEAM HEATER

175 FEET

100 FEET

80 FEET

Dust Sample Location Sketch - Building 142

SAMPLE LOCATION LEGEND:

- Indicates 1st Floor sssSample Locations.

- Indicates 2nd Floor Sample Locations.

Dust-19

Dust-22

Dust-08 Dust-12

Dust-21

Dust-07

Dust-10

Dust-18

Dust-11

Dust-13

Dust-06

Dust-16

Dust-03

Dust-02

Dust-09

Dust-20

Dust-14

Dust-17

Dust-24

Dust-23

Dust-05

Dust-04

Dust-15

Dust-01

Zain.Webb Highlight

Zain.Webb Highlight

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ATTACHMENT 1

ACM and LCP Survey Report, Building 142, Robins AFB, Georgia (A1A) www.a1aenviro.com 7105 Highway 92, Woodstock, GA 30189 (678) 212-3349 A1A Project No. 24-B-0081

SUMMARY OF

ASBESTOS-CONTAINING MATERIAL AND LEAD-CONTAINING PAINT

SURVEY

LOCATED AT:

Building 142 Robins Air Force Base, Georgia

Geosyntec Consultants, Inc.

Justin Knight 1255 Roberts Boulevard

Suite 200 Kennesaw, GA 30144

JKnight@Geosyntec.com

(770) 789-2723

NOVEMBER 14, 2024

PREPARED BY: STEPHEN K. KIMBLE

REGIONAL VICE PRESIDENT - ALABAMA

REVIEWED BY: SEAN P. KNOX

PRESIDENT/CEO

http://www.a1aenviro.com/

A1A Environmental, Inc. (A1A) is pleased to submit this report for the limited asbestos-containing material (ACM) and lead-containing paint (LCP) survey performed associated with planned upgrades in Building 142 at Robins Air Force Base (RAFB), Georgia. The survey was limited to our understanding of suspect materials that may potentially be disturbed as part of a scheduled renovation project at Robins Air Force Base, Georgia. Our services were performed in general accordance with the Subcontractor Services Agreement between A1A and Geosyntec Consultants, Inc. (Geosyntec) and the A1A scope of work detailed in an email sent on October 8, 2024, authorized under Subcontract Work Order No. 100065223.

The purpose of our service was to identify locations and approximate quantities of ACMs and LCP that may potentially be disturbed during renovations at the subject facility.

A1A is pleased to have provided this service to Geosyntec and Robins Air Force Base. Should you have any questions or comments concerning this report, or if we can be of further assistance, please contact us.

ATTACHMENTS:

Asbestos-Containing Material and Lead-Containing Paint Survey Report Table 1 – Summary of PLM Analysis Results Table 2 – Summary of Paint Chip Analysis Results Attachment 1 - General Photographs of Sampled Materials and Paint Coatings Attachment 2 –Laboratory Data Sheets and Chain-of-Custody Forms (ACM) Attachment 3 – Laboratory Data Sheet and Chain-of-Custody Form (LCP) Attachment 4 – Sample Location Drawings Attachment 5 – Inspector Accreditations

Asbestos-Containing Material and Lead-Containing Paint Survey Report

1.0 BACKGROUND

It is our understanding that renovations include upgrades to the heating ventilation, and air conditioning (HVAC) system in the Blast Shop, including removal of HVAC units, ductwork, electrical, and associated piping. It is our understanding that renovations may further include the replacement of existing roll-up doors and windows within the Blast Shop area and modifications to the walls around blast booths to extend to the roof deck. A1A was subcontracted to perform an asbestos-containing material (ACM) and lead-containing paint (LCP) survey associated with the above referenced areas of Building 142 potentially impacted by the project. This report summarizes the survey results.

2.0 ASBESTOS SURVEY

2.1 Regulatory Overview

The U.S. Environmental Protection Agency’s (EPA’s) Asbestos National Environmental Standards for Hazardous Air Pollutants (NESHAPs) regulation (40 CFR 61.145) requires that a facility scheduled for demolition or renovation be “thoroughly inspected” for the presence of ACM prior to demolition or renovation efforts.

In addition, the Occupational Health and Safety Administration (OSHA) Asbestos in Construction Standard (29 CFR 1926.1101) requires that a building or facility owner determine the presence, location, and quantity of ACM or Presumed Asbestos-Containing Material (PACM) at the work site. Owners may rebut the presumption of the presence of asbestos in materials by having a completed inspection conducted pursuant to the requirements of EPA’s Asbestos Hazard Emergency Response Act (AHERA).

OSHA further requires that samples of suspect ACM be collected by an accredited inspector and analyzed by a laboratory with proficiency demonstrated by current successful participation in a nationally recognized testing program such as the National Voluntary Laboratory Accreditation Program (NVLAP) to rebut the assumption of the presence of asbestos.

EPA’s AHERA regulations (40 CFR Part 763, Subpart E) require that suspect ACM be sampled by homogeneous area, and separates suspect ACM into three categories [i.e., surfacing material, thermal systems insulation (TSI), and miscellaneous material]. Key definitions are provided below.

• Homogeneous Area/Material: an area of surfacing material, thermal system insulation material, or miscellaneous material that is uniform in color and texture.

o Multiple samples must be collected of each homogeneous area or material (referred to as Assay Number)

• Surfacing Material: material in a building that is sprayed-on, troweled-on, or otherwise applied to surfaces, such as acoustical plaster on ceilings and fireproofing materials on structural members, or other materials on surfaces for acoustical, fireproofing, or other purposes.

o An accredited inspector must collect, in a statistically random manner that is representative of the homogeneous area, bulk samples from each homogeneous area of friable surfacing material that is not assumed to be ACM and shall collect the samples as follows:

▪ At least three bulk samples from each homogeneous area that is 1,000 square feet or less.

▪ At least five bulk samples from each homogeneous area that is greater than 1,000 square feet but less than or equal to 5,000 square feet.

▪ At least seven bulk samples from each homogeneous area that is greater than 5,000 square feet.

• Thermal Systems Insulation (TSI): material in a building applied to pipes, fittings, boilers, breeching, tanks, ducts, or other interior structural components to prevent heat loss or gain, or water condensation, or for other purposes.

o An accredited inspector must collect, in a randomly distributed manner, at least three bulk samples from each homogeneous area of TSI that is not assumed to be ACM.

▪ Bulk samples are not required to be collected from any homogeneous area where the accredited inspector has determined that the TSI is fiberglass, foam glass, rubber, or other non-asbestos-containing building material.

• Miscellaneous Material: interior building material on structural components, structural members or fixtures, such as floor and ceiling tiles, and does not include surfacing material or thermal systems insulation.

o In a manner sufficient to determine whether material is ACM or not ACM, an accredited inspector shall collect bulk samples from each homogeneous area of friable miscellaneous material that is not assumed to be ACM.

• Nonfriable Suspected Asbestos-Containing Building Material (ACBM): If any homogeneous area of nonfriable suspected ACBM is not assumed to be ACM, then an accredited inspector shall collect, in a manner sufficient to determine whether the material is ACM or not ACM, bulk samples from the homogeneous area of nonfriable ACBM.

EPA has published guidelines and recommendations regarding inspection and sampling for both friable and non-friable ACM. These guidelines were adhered to during the building surveys, as appropriate.

Friable materials are those that can be pulverized or reduced to powder by moderate pressure, such as spray-applied fireproofing and acoustical materials, acoustical ceiling tiles, and most thermal system insulation. Non-friable materials are those that cannot be crumbled easily, such as most roofing materials, resilient floor tiles or cement-asbestos ("Transite") board. Although emphasis was on detecting friable materials, the possible presence of non-friable ACM was also considered; during any demolition or renovation activities, nonfriable materials may be pulverized or otherwise damaged so as to release asbestos fibers into the air.

2.2 Overview of Asbestos Survey Field Services

On 21 October 2024, Stephen Kimble, an accredited AHERA building inspector with A1A, visited Building 142 to perform the survey. The survey began with a walkthrough of the areas to be renovated in the subject facility to identify suspect ACMs. Sample areas were typically grouped based on material homogeneity. Once sampling areas were identified and recorded, representative samples of suspect materials were collected. A total of 18 bulk samples of suspect ACM were collected in a manner to comply with the minimum sampling requirements outlined in Section 2.1. The suspect ACM observed and sampled included the following materials:

• Thermal Systems Insulation [10 Samples] o White and blue friable insulation and canvas wrap debris [3 samples] – HM #3 o Canvas wrap over friable pipe insulation [3 samples] – HM #4 o Canvas wrap over friable pipe fitting insulation [1 sample] – HM #5 o Canvas wrap/mastic over fiberglass duct insulation [3 samples] – HM #7

• Miscellaneous Materials [8 Samples]:

o White caulk at wall/duct interface [2 samples] – HM #1 o White duct seam mastic [2 samples] – HM #2 o Caulk between window and wall [2 samples] – HM #6 o Panel seam caulk [2 samples] – HM #8

Representative photographs of sampled materials are presented in Attachment 1 of this report.

Bulk samples of suspect ACM were delivered to Scientific Analytical Institute (SAI) in Greensboro, North Carolina under appropriate Chain of Custody procedures and were analyzed for asbestos content. Analysis was performed by Polarized Light Microscopy (PLM) coupled with dispersion staining, in general accordance with EPA Method 600/R-93/116 and 600/M4-82-020. Samples of each homogeneous material were analyzed on a first-positive stop basis. If one sample of a homogeneous material contained asbestos, the remaining samples were presumed to contain asbestos. Copies of the laboratory analysis data sheets and Chain-of-Custody are attached to this report as Attachment 2.

2.3 Summary of Analytical Results

Asbestos was documented in the following materials during these survey efforts:

Material Sample Numbers Locations Estimated Quantity

White and blue friable insulation and canvas wrap debris A5-A7 On top of the IVD Room 400 sf

Canvas wrap over friable pipe insulation A8 – A10

Hot Water/Steam piping throughout Blast Shop area

1,100 lf (unknown quantity impacted by renovation)

Canvas wrap over friable pipe fitting insulation A11

Hot Water/Steam piping throughout Blast Shop area

40 (unknown quantity impacted by renovation)

Panel seam caulk A17-A18 ETR Outdoor Air Hood 100 lf

Roof/roof flashing materials Not Sampled, Presumed ACM Roof

Unknown if project will disturb these materials

Asbestos was not documented to be present in the remaining bulk samples analyzed. A summary of bulk sample analysis results is included in the attached Table 1, "Summary of PLM Analysis Results".

2.4 Asbestos Survey Conclusions and Recommendations

ACM identified above should be removed by a Georgia-licensed asbestos abatement contractor prior to the performance of any other work that will disturb these materials. Damaged asbestos-containing pipe and pipe fitting insulation debris was observed on top of the IVD Room. This material poses an immediate concern and asbestos-containing/contaminated debris should be removed and surfaces cleaned by a Georgia-licensed asbestos abatement contractor. Access to the top of the IVD Room should be limited until cleaning efforts can be performed.

Remaining asbestos-containing pipe and pipe fitting insulation associated with the steam piping should be removed by a Georgia-licensed asbestos abatement contractor in those areas that will be disturbed by renovations prior to demolition of the HVAC system components the subject piping serves.

A Georgia-licensed asbestos abatement contractor should perform the removal of the outer panels of the rooftop ETR Outdoor Air Hood and the panel components should be either cleaned, or disposed as asbestos-containing/contaminated materials.

If replacement of the roof mounted equipment will involve removal of roof flashing or roofing materials associated with equipment curbs, the roof/roof flashing materials should be presumed to contain asbestos and treated as such, unless they are sampled by an AHERA accredited asbestos building inspector and analyzed by a NVLAP accredited laboratory to evaluate asbestos content.

If any suspect materials not addressed in this survey are encountered in conjunction with any renovation efforts, or change in scope of work, A1A recommends that samples of suspect materials be collected by an AHERA accredited asbestos building inspector and analyzed by a NVLAP accredited laboratory to evaluate asbestos content.

3.0 LEAD-CONTAINING PAINT SURVEY

3.1 Regulatory Overview

EPA’s Housing and Urban Development (HUD) Regulations address paint coatings with lead concentrations greater than 0.5 percent by weight, which is designated as Lead-Based Paint (LBP).

EPA’s HUD Regulations pertain to child occupied facilities and pre-1978 target housing. This facility does not meet the applicability requirements for EPA’s HUD Guidelines.

Current OSHA regulations address lead in paint coatings regardless of lead concentrations. Paint coatings with measurable lead concentrations less than 0.5 percent by weight are designated as Paint-Containing Lead (PCL). Since OSHA does not differentiate between LBP and PCL, these paint coatings are grouped together as Lead-Containing Paint (LCP). If lead is present in the paint coatings at any concentration, employers must protect workers that may be exposed to lead at concentrations greater than the Permissible Exposure Limit (PEL). OSHA requires that contractors that may be exposed to lead in concentrations greater than the PEL during renovation or demolition activities be properly trained in accordance with OSHA’s Lead in Construction Standard (29 CFR 1926.62).

3.2 Overview of Lead-Containing Paint Survey Field Services

On 21 October 2024, Stephen Kimble an accredited lead inspector with A1A visited the site to perform the survey. The survey began with a walkthrough of the areas to be renovated to identify suspect LCP that would potentially be disturbed during the scheduled renovation project. LCP sampling combinations were generally selected by the color of the topcoat of paint on each type of substrate (i.e., tan paint on metal window trim). A total of 10 paint chip samples were collected as summarized below. Paint chips were collected to the base substrate, including associated layers of paint leading to the substrate. The paint chip coatings are identified by the top layer color, obvious layers below the top layer (if present), and substrate to which it was attached.

• Blue paint on exterior roll up door metal frame (Sample# L-1)

• Black paint on interior roll up door metal frame (Sample# L-2)

• White paint on metal frame associated with interior roll up door (Sample# L-3)

• Blue paint on vertical I-beam (Sample# L-4)

• Blue paint on horizontal I-beam (Sample# L-5)

• Black paint on blast area roll up door frame (Sample# L-6)

• Tan paint on metal ETR panels (Sample# L-7)

• Tan paint on metal equipment shrouds (Sample# L-8)

• Red paint on RTU structural framing (Sample# L-9)

• Blue paint on interior ventilation ductwork (Sample# L-10)

Refer to Attachment 1 of this report for representative photographs of suspect LCP sampled.

Samples of suspect LCP were delivered to SAI in Greensboro, North Carolina under appropriate Chain of Custody procedures and were analyzed for lead content by Flame Atomic Absorption Spectrometry in accordance with EPA SW-846 3050B/6010C/7000B. Copies of the laboratory analysis data sheets and Chain-of-Custody are attached to this report as Attachment 3.

3.3 Summary of Analytical Results

Laboratory analysis indicated the presence of lead in the following paint samples analyzed.

LCP Coatings Sample Number Response Action Estimated Quantity Blue paint on exterior roll up door metal frame

L-1 Comply with 29 CFR

1926.62 if disturbed

45 sf

Black paint on interior roll up door metal frame

L-2 Comply with 29 CFR

1926.62 if disturbed 30 lf (15 sf)

White paint on metal frame associated with interior roll up door

L-3 Comply with 29 CFR

1926.62 if disturbed 30 lf (15 sf)

Blue paint on vertical I-beam L-4 Comply with 29 CFR

1926.62 if disturbed

Unknown quantity disturbed by renovation

Blue paint on horizontal I-beam

L-5 Comply with 29 CFR

1926.62 if disturbed

Unknown quantity disturbed by renovation

Black paint on blast area roll up door frame L-6 Comply with 29 CFR

1926.62 if disturbed 30 lf (15 sf)

Tan paint on metal ETR panels L-7 Comply with 29 CFR

1926.62 if disturbed 1,000 sf

Tan paint on metal equipment shrouds L-8 Comply with 29 CFR

1926.62 if disturbed 7 units, 550 sf

Red paint on RTU structural framing L-9 Comply with 29 CFR

1926.62 if disturbed

38 lf (Currently unknown quantity disturbed by project)

Blue paint on interior ventilation ductwork L-10 Comply with 29 CFR

1926.62 if disturbed 400 lf

Lead was documented to be present in concentrations greater than the analytical reporting limit in each of the samples analyzed. A summary of the paint chip sample analysis results is included in the attached Table 2, "Summary of Paint Chip Analysis Results".

3.4 LCP Survey Conclusions and Recommendations

The Occupational Safety and Health Administration (OSHA) Construction Industry Standard for Lead (29 CFR 1926.62) does not reference the EPA/HUD definition for LBP (0.5% by weight or 1.0 milligram per square centimeter (mg/cm2)). If detectable levels of lead are identified in any painted surface, paint disturbance will fall under the OSHA Lead Standard. OSHA 29 CFR 1926.62 requires employers to perform exposure monitoring for employees whose tasks disturb or potentially disturb lead. The data contained in this survey report should be provided to the Contractor, prior to the Contractor submitting bids for maintenance, renovation or demolition work. Due to the presence of LCP (either LBP or PCL) in Building 142, only those contractors trained in accordance with OSHA 29 CFR 1926.62 should perform demolition or renovation activities that disturb the LCP coatings.

If work of this project includes welding or torch cutting (adding or removing) supports or bracing to the structural steel, paint coatings should be removed from areas of the steel prior to work that would disturb paint coatings.

Lead was detected to be present in each of the paint coatings sampled. Paint coatings not sampled in the Blast Shop area should be presumed to contain lead.

Waste generated by disturbance LCP surfaces scheduled to be disposed in a landfill should be subjected to Toxicity Characteristic Leaching Procedure (TCLP) testing to determine leachable metal concentrations. If leachable concentrations of Resource Conservation and Recovery Act (RCRA) metals in construction waste are determined by TCLP testing, those materials should be disposed of or recycled in accordance with EPA 40 CFR Part 260 to 271 and applicable State of Georgia Department of Natural Resources (DNR), Environmental Protection Division (EPD) Rules for Solid Waste Management (391-3-4) and Hazardous Waste Management (391-3-11). For lead, TCLP results greater than 5 milligrams per liter (mg/L) are considered hazardous lead waste (EP Toxicity) and carry a hazardous waste code under RCRA (40 CFR Part 261) of D008. Painted metal waste scheduled to be delivered to a metal recycling center does not require TCLP testing.

www.a1aenviro.com 7105 Highway 92, Woodstock, GA 30189 (678) 212-3349 A1A Project No. 23-0543-ASB

Table 1 – “Summary of PLM Analysis Results”

Table 1 Summary of PLM Analysis Results

RAFB B142

A1A Project No. 24-B-0081

Sample No.

Homog.

Mat. No.

Assay No.

Sample Location Sample Description Analysis Results

A1 1 1 Above HVOF Booth 1, Duct White caulk at wall/duct interface None Detected

A2 1 2 Above HVOF Booth 1, Duct White caulk at wall/duct interface None Detected

A3 2 1 Above HVOF Booth 1, Duct Joint White duct seam mastic None Detected

A4 2 2 Above HVOF Booth 1, Duct Joint White duct seam mastic None Detected

A5 3 1 Above IVD Room White and blue friable insulation with canvas wrap debris 15% Amosite, 5%

Chrysotile

A6 3 2 Above IVD Room White and blue friable insulation with canvas wrap debris Not Analyzed

A7 3 3 Above IVD Room White and blue friable insulation with canvas wrap debris Not Analyzed

A8 4 1 Mezzanine, NW side, Hot

Water/Steam Piping Canvas wrap over friable pipe insulation

20% Amosite, 2% Chrysotile

A9 4 2 Mezzanine, NW side, Hot

Water/Steam Piping Canvas wrap over friable pipe insulation Not Analyzed

A10 4 3 Mezzanine, NW side, Hot

Water/Steam Piping Canvas wrap over friable pipe insulation Not Analyzed

A11 5 1 Mezzanine, NW side, Hot

Water/Steam Piping Canvas wrap over friable pipe fitting insulation 5% Amosite

A12 6 1 Mezzanine windows Caulk between window and wall None Detected

A13 6 2 Mezzanine windows Caulk between window and wall None Detected

A14 7 1 Roof, RTU duct insulation Canvas wrap/mastic over fiberglass duct insulation None Detected

A15 7 2 Roof, RTU duct insulation Canvas wrap/mastic over fiberglass duct insulation None Detected

A16 7 3 Roof, RTU duct insulation Canvas wrap/mastic over fiberglass duct insulation None Detected

A17 8 1 ETR Outdoor Air Hood Panel seam caulk 4% Chrysotile

A18 8 2 ETR Outdoor Air Hood Panel seam caulk Not Analyzed

Prepared by: SKK Reviewed by: SPK

Note: Bolded text indicates the presence of asbestos in the sampled material

Table 2 – “Summary of Paint Chip Analysis Results”

Table 2 Summary of Paint Chip Analysis Results

RAFB B142

A1A Project No. 24-B-0081

Sample Number

Substrate Location/Component Floor Color Paint Quality

Rating

Lead Concentration

(%/wt)

L1 metal frame Roll up door exterior frame Ext Blue Intact 2.7

L2 metal frame Roll up door interior frame 1 Black Intact 0.03

L3 metal frame Roll up door interior frame 1 White Intact 0.012

L4 metal I-beam Vertical I-beam adjacent roll up door 1 Blue Intact 0.067

L5 metal I-beam Horizontal I-beam 1 Blue Intact 0.034

L6 metal door frame Roll up door, blast area 1 Black Intact 0.0062

L7 metal ETR hood ETR Outdoor Air Hood Roof Tan Chalking 0.011

L8 metal hood Equipment shroud Roof Tan Chalking 0.0083

L9 metal framing RTU supports Roof Red Flaking 0.057

L10 metal duct NE 1st floor 1 Blue Intact 0.021

Abbreviations:

%/wt - percent by weight Ext - exterior NE - Northeast

BRL - Below Reporting Limit RTU - Roof Top Unit

Prepared by: OAH SKK Reviewed by: SPK

Note: Bolded line items indicate the presence of lead in concentrations greater than the analytical detection limit.

Attachment 1 – General Photographs of Sampled Materials and Paint Coatings

Building 142, Robins AFB, Georgia General Survey Photos – Asbestos Sampling

A1A Project No. 24-B-0081

1.

View of non-asbestos-containing white caulk at HVOF Booth wall/duct interface (Samples A1-A2).

2. 2 View of non-asbestos-containing white duct seam mastic (Samples A3-A4).

3.

View of asbestos-containing pipe insulation debris on top of IVD Room (Samples A5 – A7).

4. 2 View of remaining asbestos-containing pipe/pipe fitting insulation over IVD Room.

General Survey Photos – Asbestos Sampling

5.

View of asbestos-containing canvas wrap over friable pipe insulation (Samples A8 – A10).

6. 2 View of asbestos-containing pipe fitting insulation (Sample A11).

7.

2.

View of asbestos-containing pipe and pipe fitting insulation impacted by renovations.

8. 2 View of non-asbestos-containing window caulk (Samples A12-A13).

9.

View of non-asbestos-containing canvas/mastic over fiberglass duct insulation (Samples A14 – A16).

10. 2 View of asbestos-containing panel seam caulk on ETR Outdoor Air Hood(Samples A17-A18).

General Survey Photos – Paint Sampling

11.

View of lead-containing blue paint on the roll up door frame (Sample L1).

12. 2 View of lead-containing black paint on the roll up door frame (Sample L-2).

13.

View of lead-containing white paint on the roll up door frame (Samples L-3).

14. 2 View of lead-containing blue paint on vertical I-beam (Sample L-4).

General Survey Photos – Paint Sampling

15.

View of lead-containing blue paint on horizontal I-beam (Sample L-5).

16. 2 View of lead-containing black paint on roll up door frame (Sample L-6).

17.

2.

View of lead-containing tan paint on ETR Outdoor Air Hood (Sample L-7).

18. 2 View of lead-containing tan paint on equipment shroud (Sample L-8).

19.

View of lead-containing red paint on RTU supports (Sample L-9).

20. 2 View of lead-containing blue paint on ventilation duct (Sample L-10).

Attachment 2 – Laboratory Data Sheets and Chain-of-Custody Forms (ACM)

Bulk Asbestos Analysis By Polarized Light Microscopy EPA Method: 600/R-93/116 and

40 CFR, Part 763, Subpart E, App.E

Lab Order ID:Attn: 10066336Customer: A1A Environmental 7105 Hwy 92 Woodstock, GA 30189

Analysis:

Date Received:

Stephen Kimble

PLM

10/23/2024

Project: Robins B142 24-B-0081-INSP Date Reported: 10/25/2024

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos

Fibrous Components

Non-Fibrous Components Treatment

Attributes

A1

10066336_0001

White caulk at wall/duct interface

None Detected 100% Other

Non-Fibrous

Dissolved

White

Homogeneous

A2

10066336_0002

White caulk at wall/duct interface

None Detected 100% Other

Non-Fibrous

Dissolved

White

Homogeneous

A3

10066336_0003

White duct seam mastic

None Detected 100% Other

Non-Fibrous

Ashed

White

Homogeneous

A4

10066336_0004

White duct seam mastic

None Detected 100% Other

Non-Fibrous

Ashed

White

Homogeneous

A5

10066336_0005

White & blue insulation debris 15%

5% 15% 5%

Amosite Chrysotile

Mineral Wool Cellulose

60% Other

Fibrous

Teased

Blue, White

Homogeneous

A6

10066336_0006

White & blue insulation debris

Not Analyzed

A7

10066336_0007

White & blue insulation debris

Not Analyzed

A8

10066336_0008

Canvas wrap over white friable pipe insulation

5% 20% 2%

Amosite Chrysotile

Cellulose 73% Other

Fibrous

Teased

White

Homogeneous inseparable wrap

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogenous soil samples be conducted by TEM for confirmation of "None Detected" by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program.

Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Charmel Dozier (18)

Analyst Approved Signatory

Page 1 of 3P-F-002 r15 1/15/2028 Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and

40 CFR, Part 763, Subpart E, App.E

Lab Order ID:Attn: 10066336Customer: A1A Environmental 7105 Hwy 92 Woodstock, GA 30189

Analysis:

Date Received:

Stephen Kimble

PLM

10/23/2024

Project: Robins B142 24-B-0081-INSP Date Reported: 10/25/2024

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos

Fibrous Components

Non-Fibrous Components Treatment

Attributes

A9

10066336_0009

Canvas wrap over white friable pipe insulation

Not Analyzed

A10

10066336_0010

Canvas wrap over white friable pipe insulation

Not Analyzed

A11

10066336_0011

Canvas wrap over friable pipe fitting insulation 25%

15%5% Amosite Mineral Wool Cellulose

55% Other

Fibrous

Teased

Gray

Homogeneous inseparable wrap

A12

10066336_0012

Caulking

None Detected 100% Other

Non-Fibrous

Dissolved

White

Homogeneous

A13

10066336_0013

Caulking

None Detected 100% Other

Non-Fibrous

Dissolved

White

Homogeneous

A14

10066336_0014

Canvas wrap/mastic duct insulation

None Detected 30% Fiber Glass 70% Other

Fibrous

Ashed

White

Homogeneous

A15

10066336_0015

Canvas wrap/mastic duct insulation

None Detected 30% Fiber Glass 70% Other

Fibrous

Ashed

White

Homogeneous

A16

10066336_0016

Canvas wrap/mastic duct insulation

None Detected 30% Fiber Glass 70% Other

Fibrous

Ashed

White

Homogeneous

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogenous soil samples be conducted by TEM for confirmation of "None Detected" by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program.

Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Charmel Dozier (18)

Page 2 of 3P-F-002 r15 1/15/2028 Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and

40 CFR, Part 763, Subpart E, App.E

Lab Order ID:Attn: 10066336Customer: A1A Environmental 7105 Hwy 92 Woodstock, GA 30189

Analysis:

Date Received:

Stephen Kimble

PLM

10/23/2024

Project: Robins B142 24-B-0081-INSP Date Reported: 10/25/2024

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos

Fibrous Components

Non-Fibrous Components Treatment

Attributes

A17

10066336_0017

Panel caulk

4% Chrysotile 96% Other

Non-Fibrous

Dissolved

Gray

Homogeneous

A18

10066336_0018

Panel caulk

Not Analyzed

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogenous soil samples be conducted by TEM for confirmation of "None Detected" by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program.

Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Charmel Dozier (18)

Page 3 of 3P-F-002 r15 1/15/2028 Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

I>

• • . A 1 A Environmental, Inc. _;

' 7105 Highway 92

Woodstock~ GA 3b 189

Project Name: Robins 8142 Project Number: 24-8-0081-INSP r

Sample Number Number

A3

!