B2989 HazMatRprt.pdf

Astex Environmental Services 139 Braniff Drive * San Antonio, TX 78216

Phone: (210) 828-9800 « Fax (210) 829-4927ASTEX

ENVIRONMENTAL www.astexinc.com astex@astexinc.comSERVICES

February 9, 2026

E. David Martinez Mi HNN A Engineering Tech AE2620024B 802 CES/CENME, Execution Support 2250 Engineering Street, Building 4196 JBSA-Fort Sam Houston, TX 78234 P: (210) 378-6676 E: eraldo.martinez@us.af.mil

Re: Hazardous Materials (HAZMAT) Report Joint Base San Antonio (JBSA)-Lackland Air Force Base Facility 2989 MPLS, Training Lodge Support Building Foster Avenue, San Antonio, Texas 78236 Astex Project No.: AE2620024-B

Mr. Martinez:

Pursuant to your request, the following are the results of the Lead-Based Paint (LBP) Inspection with Limited Asbestos Sampling conducted by Astex Environmental Services (Astex) representative: Mrs. Leonora Becknal. The survey included a lead-based paint inspection and a limited asbestos survey as well as a cursory review for Mercury and Polychlorinated Biphenyls (PCBs).

Summary of Results Based on thorough observations made on-site, as well as the comprehensive analysis of the data collected, we have compiled the following detailed results.

Lead-Based Paint

(e) ie)

Of the twenty-one (21) components analyzed, zero (0) analyzed above

1.0 mg/cm? and are identified as positive or lead containing.

Of the twenty-one (21) individual paint readings analyzed, six (6) analyzed as having lead present (see Section A: Lead-Based Paint Inspection for more information).

« Tan Painted Warehouse Door, Exterior Building Door & Wall, and Exterior Building Column

" White Painted Exterior Building Wall and Commercial Warehouse Window

Of the twenty-one (21) components analyzed, fifteen (15) analyzed as negative.

Hazardous Materials (HAZMAT) Report Joint Base San Antonio (JBSA)-Lackland Air Force Base

Asbestos o The tested building materials were laboratory analyzed to be non-asbestos containing, and in accordance with the Texas Asbestos Health Protection Rules (TAHPR), no special handling is required prior to or during repair or renovation activities.

Mold Inspection

Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236 o At the time of assessment, the conditions observed at this location do not meet the threshold for a regulated mold condition as defined by the Texas

Department of Licensing and Regulation (TDLR) in accordance with 16 TAC

§78.140. Aregulated condition is only triggered when 25 or more contiguous square feet of visible mold growth is identified on interior building components. A copy of the Consumer Mold Information Sheet (CMIS), as required by TDLR, is included in this report for your reference.

o In this case, the following conditions were observed, and the total affected area was less than the state-regulated threshold (25 contiguous square feet). Therefore, state-mandated remediation protocols are not currently required:

At the time of inspection, no indoor air quality concern was identified within occupied spaces.

Airborne mold spore concentrations were lower than or comparable to outdoor baseline levels, and no surface mold was observed.

Environmental conditions (temperature, relative humidity, dew point) were within acceptable ranges, supporting a stable and dry indoor environment.

Building materials were confirmed to be dry, and no visible signs or noticeable odors associated with microbial activity were detected.

The above is indicative of supporting good indoor air quality.

Polychlorinated biphenyls (PCBs) o No noteworthy PCB containing building components were identified.

Mercury (Hq) o Amercury switch thermostat was viewed within the hallway during this inspection.

Astex Project Number: AE2620024-B Page 2

Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

Section A: Lead-Based Paint Inspection

On January 22, 2026, Mrs. Leonora Becknal, TDSHS Lead Risk Assessor, No. 2070705, of Astex, TDSHS Lead Firm, No. 2110460, inspected the above-referenced project location for the purpose of performing a lead-based paint (LBP) inspection.

For this survey, Astex conducted lead-based paint (LBP) testing utilizing a Viken Pb200i

X-Ray Fluorescence (XRF) portable paint analyzer in accordance with the federal regulations of the Environmental Protection Agency (EPA) Renovation, Repair and

Painting (RRP) and Federal Housing and Urban Development (HUD). Astex secured a total of thirty-four (34) individual paint readings from randomly selected exterior surfaces.

Since the buildings at this location are not categorized as “target housing” and/or “a child occupied facility”, in accordance with the HUD Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing (2012 Edition), it is exempt from federal HUD regulations and the Texas Environmental Lead Reduction Rules (TELRR).

This LBP testing was conducted in order to predetermine the potential representative lead content of the buildings’ components. The EPA and the HUD guidelines, established for testing within child occupied facilities and target housing, categorize paint chip samples with levels at or above 0.5% (5,000 parts per million (ppm)) by weight, positive for LBP.

The Occupational Safety and Health Administration (OSHA) lead standard for worker protection during lead paint removal or maintenance activities (i.e., 29 CFR 1910.1025 for General Industry and 29 CFR 1926.62 for Lead — Construction), the EPA- Resource Conservation and Reclamation Act (RCRA) and the Texas Commission on Environmental Quality (TCEQ) for disposal of lead-containing (waste) materials, require identification of the lead content prior to demolition/disposal.

Visual Assessment The evaluation of the property consisted of a visual assessment of the area’s components. Overall, the condition of the painted surfaces was determined to be in damaged condition.

Inspection A lead-based paint hazard is any condition that causes exposure to lead from dust-lead hazards, soil-lead hazards, or lead-based paint that is deteriorated, or present in chewable surfaces, friction surfaces, or impact surfaces that would result in adverse human health effects.

According to the EPA, Title X (“ten”) of the Housing and Community Development Act of 1992, defines lead-based paint inspection (in two places, with slightly different formatting of the same wording) as:

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236 a surface-by-surface investigation to determine the presence of lead-based paint as provided in section 302(c) of the Lead-Based Paint Poisoning Prevention Act and the provision of a report explaining the results of the investigation. (15 U.S.C.

2681(7), for use by EPA and its stakeholders; and 42 U.S.C. 4851(12), for use by HUD and its stakeholders)

This definition in Title X is based on, and mentions, the earlier Lead-Based Paint Poisoning Prevention Act (Public Law 91-695), enacted in 1971, which described an inspection in its section 302(c) as being an:

inspection of all intact and nonintact interior and exterior painted surfaces of housing subject to this section for lead-based paint using an approved x-ray fluorescence analyzer, atomic absorption spectroscopy, or comparable approved sampling or testing technique. A certified inspector or laboratory shall certify in writing the precise results of the inspection. If the results equal or exceed a level of 1.0 milligrams per centimeter squared or 0.5 percent by weight, the results shall be provided to any potential purchaser or tenant of the housing. (42 U.S.C.

4822(c))

The sampling and testing protocols in this chapter fulfill the definition of lead-based paint inspection, in providing guidance on selecting building components of housing to sample and/or test them and the methods for determining whether they are coated with lead-based paint.

Lead Conclusions

Based on the above EPA/HUD criteria and XRF testing, the following conclusions AND recommendation are offered:

~ Lead-based paint (LBP) does not appear to be present in the building materials tested. No special handling would be required during renovation or demolition activities.

~ See XRF Analytical Results (Appendix B)

The Operational Safety and Health Administration (OSHA) does not recognize the EPA/HUD categorizations. Per OHSA’s Lead in Construction standard (29 CFR 1926.62) involving paints having any level of lead, employers/contractors involved in renovation or demolition must comply with the assessment measures and any applicable worker protections of the standard.

The enclosed analytical results have been reported to all of the above standards (EPA, HUD, OSHA).

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236 o Readings at or above 1.0 mg/cm? are identified in red print in the XRF ANALYTICAL RESULTS - attached (Appendix D) with results listed as “Positive.”

~ Of the twenty-one (21) readings, zero (0) analyzed above 1.0 mg/cm’.

o Readings between 0.2 mg/cm? and 0.9 mg/cm? are identified in bold print in the XRF ANALYTICAL RESULTS - attached (Appendix D) with results listed as “Present.”

~ Of the twenty-one (21) readings, six (6) analyzed between 0.2 mg/cm?

and 0.9 mg/cm? and have lead present within the painted substrates.

o Readings below 0.2 mg/cm? are reported as “Negative.”

~ Ofthe twenty-one (21) readings, fifteen (15) analyzed below 0.2 mg/cm?

and are considered to be non-lead-based paint containing.

It’s important to note that this building is not categorized as “target housing” and all renovation work that will impact Lead-Based Paint must be performed in accordance with the EPA: 40 CFR Part 74 Lead; Renovation, Repair, and Painting Program (RRP).

The following link will connect you with a guide on how to renovate your building, and you can follow the webpage for further information in learning more about the EPA-RRP requirements: (Attached is also a summary of the regulation provided by Astex.)

httos://www.epa.gov/lead/protect-your-family-sources-lead

LEAD Recommendations

No owner requirement from any regulatory entity requires lead painted material to be ‘abated’ prior to disturbance of said materials during the normal course of renovation and/or demolition tasks.

No owner requirement from any regulatory entity requires lead painted material to be ‘abated’ prior to disturbance of said materials during the normal course of renovation and/or demolition tasks.

The contractor(s) performing renovation and/or demolition tasks are solely responsible for OSHA compliance and administering their site-specific Health and Safety Plan(s) (HASPs) related to LBP and all other regulated materials (ORMs). This responsibility in no manner transfers to the owner, their authorized agent nor Astex.

Texas Environmental Lead Reduction Rules (TELRR) do not require LBP testing prior to demolition of structure(s) currently present. Furthermore, municipal permitting for the structure also does not require LBP testing.

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236 e If an employer is working with paint which contains any amount of lead, including those between 0.2 mg/cm? and 0.9 mg/cm’, in such a way that would generate airborne levels to which employees may be exposed, it is the employer's responsibility to conduct exposure monitoring (or use objective or historical data as defined in 29 CFR 1926.62(d)(3)(iii) through 1926.62(d)(3)(iv)(B) and in 29 CFR 1926.62(n)(4)) to demonstrate that the Lead in Construction standard's action level (30 micrograms/cubic meter of air) is not exceeded. The results of the exposure assessment then determine whether the employer would need to apply further protection of that rule. If the levels of lead to which employees are exposed are below the action level (which may occur when the levels of lead in paint are very low and work is being done in such a way as to not disturb the paint and, therefore, generate airborne concentrations of lead), then the further requirements of the standard would not apply.

e Protection for workers per OSHA Regulations (29 CFR 1926.62) would be required during maintenance or renovation activities that may disturb materials identified to have paint containing lead present and is the sole responsibility of that specific contractor.

e Resource Conservation and Recovery Act (RCRA) requires the demolition contractor to perform a TCLP (Toxicity Characteristic Leaching Procedure) waste characterization sample for landfill verification and RCRA assurances.

This process is solely the responsibility of the contractor conducting the haul-off of project related waste.

Section B: Limited Asbestos Survey

The following are the results of the asbestos testing conducted by Mrs. Leonora Becknal, Texas Department of State Health Services (TDSHS) Asbestos Consultant, license number 105662, at the above referenced project. On January 22, 2026, a total of three

(3) suspect asbestos containing building materials (ACBM) were collected. These samples were sent to Environmental Analytical Services, LLC, Houston, Texas, TDSHS

Laboratory PLM, license no. 300373, for analysis by Polarized Light Microscopy (PLM) in accordance with EPA 600/R-93/116 Method.

Asbestos is a naturally occurring mineral that is distinguished from other minerals by the fact that it occurs in long, thin fibers. Its characteristics are that it does not burn, it is strong, it conducts heat and electricity poorly, and it is impervious to chemical corrosion, therefore, asbestos was utilized in numerous construction materials. Typically, asbestos containing materials (ACM) can be found as: fireproofing material on the steel beams of multi-story buildings; roofing shingles, felts, and tars; floor tiles and mastic, acoustic ceiling and wall textures; joint compound; and Thermal System Insulation (TSI) for pipes, Astex Project Number: AE2620024-B Page 6

Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236 ducts, and joints. Over a period of years these asbestos containing materials may become friable, that is pulverized by hand pressure, thus releasing fibers into the air.

Limitations The results, findings and conclusions documented in this report are based solely on conditions observed on the day(s) of the inspection. Astex Environmental Services (AES) and its assigns make no representations or assumptions as to past or future conditions of the premises or building material content. AES representatives executed the enclosed ACBM inspection in areas (as directed by those authorizing the work to be done) that may be impacted during future maintenance, renovation, or demolition tasks. Unless directed otherwise, inspection methods used were non-destructive; that is, existing materials were not significantly disturbed or demolished in order to verify the presence of hidden ACBM.

As in all ACBM testing events, bulk samples (small physical specimens) are required and were collected in the most discrete method possible in order to maintain the visual appearance of the premises. AES is not responsible for damage or repair to areas where bulk samples were required to satisfy the authorized work to be completed.

The building owner, personnel and their authorized contractors are solely responsible for reviewing and communicating with their personnel the content of the enclosed ACBM’s tested (whether they tested positive for ACM or not). Furthermore, inaccessible materials (i.e., areas where no access was possible or permitted) were not documented or tested.

Additional materials found that do not appear to match the description of the enclosed sample results must be tested prior to disturbance. Materials visually identified as non-asbestos were not sampled (i.e., fiberglass, foam rubber, wood, carpet, glass, etc.).

As authorized, this report has been generated to comply with regulatory requirements and assist in the identification of ACBM at the project site. The enclosed is not intended to be utilized as a State required asbestos abatement work plan (Design Specification) or as a bidding document for asbestos abatement. AES licensed and certified personnel are available to assist with said documentation if it is required for this project.

Laboratory Results The laboratory analytical sheets can be found in the Appendices.

Table 1: Asbestos Laboratory Analytical Results Sample No. Sample Description

Sample Location; Est. Qty." Condition Result

20024B-01 | Pipe Insulation Interior 20 LF D None Detected

20024B-02 | Pipe Insulation Interior 20 LF D None Detected

20024B-03 | Pipe Insulation Interior 20 LF D None Detected SD = Significantly Damaged D=Damaged G=Good

Astex Project Number: AE2620024-B

SF = Square Feet LF = Linear Feet

Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

“Estimated quantities ofeach suspect material represent the homogeneous feature of the material sampled within the room/area equivalent directly at the sample location. Quantity reported does not represent nor infer to represent a complete inventory of the amount of identified suspect material within the structure. Astex is available to generate a post report inventory of found asbestos containing building materials for TDSHS required abatement work plans and/or asbestos abatement contractor cost proposals.

Asbestos Conclusions and Recommendations

Based on the analytical results the following conclusions and recommendations are offered:

1. The tested building materials were laboratory analyzed to be non-asbestos containing, and in accordance with the Texas Asbestos Health Protection Rules (TAHPR), no special handling is required prior to or during repair or renovation activities.

Section C: MOLD

This report documents the findings of an indoor Air Quality (IAQ) and Mold Assessment conducted at the aforementioned project location by Astex Environmental Services (Astex), on January 22, 2026.

The investigation was performed by Mrs. Leonora Becknal, a licensed Mold Assessment Consultant (MAC1240) under the Texas Department of Licensing and Regulation (TDLR) and was carried out in accordance with applicable regulatory standards and industry best practices.

The objective of the assessment was to evaluate:

Bioaerosol (mold spore) concentrations within the specified breathing zones Surface mold presence in suspect areas (type and loading density) Ambient temperature, relative humidity, and/or dew point Area and site conditions

Assessment Summary Based on observations made on the day of assessment and/or laboratory analysis, the property is assessed to have no mold issue at the time of inspection. This summary conclusion reflects the overall condition identified during the assessment. Detailed findings, including sample results, environmental condition measurements, and specific observations are provided within the ensuing sections of this report.

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

Mold Exposure and State Regulations Texas regulates mold inspections and remediation under the Occupations Code Chapter 1958 and Title 16, Chapter 78 of the Administrative Code. A "regulated mold condition" exists when amounts greater than or equal to 25 contiguous square feet of visible mold growth is identified. As of the date of this report, that threshold has not been met for the location(s) assessed. However, unregulated conditions may still warrant professional remediation based on health impact potential.

Important Note: The U.S. EPA and CDC currently have no defined exposure limits for indoor mold levels. Therefore, assessments rely on comparative data analysis (e.g., indoor versus outdoor spore counts and/or surface sample presence for mold species identification) and industry standard interpretation, as outlined by AIHA and IICRC $520 guidance.

Sample Collection and Laboratory Analysis

Sampling Summary e Date of Sampling: January 22, 2026 e Samples Collected:

o One (1) indoor air sample o One (1) outdoor air sample (baseline) o One (1) tape-lift sample

Sampling and interpretation were conducted in accordance with TDLR requirements and industry guidance including AIHA’s "Recognition, Evaluation, and Control of Indoor Mold" and IICRC $520 Standard for Professional Mold Remediation.

Laboratory analysis was performed by Environmental Analytical Services LLC, accredited by AIHA EMLAP to ensure analytical reliability.

Laboratory Results Overview Air Sample Summary (Bioaerosols)

Mold Interior to Penicillium/ Interior to Interior to Acceptable Species— | Cladosporium Exterior A

; Exterior TOTAL Exterior P

3 ; spergillus : 3 .

(Cnts./m?) (Comparison) (Cnts./m?)

(Comparison) | (Cnts./mo) | (Comparison) Yes INo SAMPLE] [percent]

[percent] [percent] M2 307 21.3% 253 35.8% 613 9.6% Yes

M1 1,440 - 707 - 6,413 - ~~

Counts per cubic meter (cnts./m*) as compared to outdoor baseline (%)

Surface Sample Summary (Tape-Lift) Sample : : we Particulate

ID Location Species Identified Loading Acceptable

T3 Wall Cladosporium Medium Marginal

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

Air Sample Conclusions (Indoor vs. Outdoor Data) Industry-standard interpretation (per AIHA and IICRC S520) is based on the following comparative analysis:

e Indoor spore counts should be lower than or similar to outdoor levels e Elevated indoor counts indicate potential active indoor mold sources e Elevated surface moisture or humidity enhances risk for mold colonization and cross-contamination

The air sample results presented above provide an overview of airborne mold levels detected during the assessment. Based on these findings, indoor mold levels were determined to be within normal ranges. The mold types identified consisted of Cladosporium and Penicillium/Asp. These results do not indicate the likely presence of an indoor mold source.

Since the results do not suggest an indoor mold source, no corrective actions are recommended at this time. Regular upkeep of household systems such as HVAC units and filters, bathroom and kitchen plumbing, and roof gutters is recommended to help prevent future mold problems. Keep areas like bathrooms, basements, and windowsills dry by using exhaust fans, opening windows when weather permits, and using dehumidifiers in damp areas. Fix leaks promptly and aim to keep indoor humidity below 60% using air conditioning or portable dehumidifiers.

Air Sample Result Determination Acceptance Guide Determination Range Details

The airborne mold spore levels and types are consistent with what Yes <60% is typically found in outdoor air or clean indoor environments. No indication of an indoor mold source is present in the sampled area.

The results are slightly elevated or show mold types that may suggest a developing or localized issue. While not clearly abnormal, these findings may warrant closer observation or limited investigation depending on other site conditions.

The results are elevated and/or dominated by mold types commonly associated with active indoor growth. This indicates a likely indoor mold source and further assessment or remediation is recommended.

When reviewing percentage as compared to baseline/outdoor sample. The above determination criteria is proprietary to Astex. Site-specific findings and MAC interpretations may result in conclusions outside the ranges and details above.

Marginal 60-79.9%

No 280%

Surface Sample Conclusions Mold spores consistent with common indoor and outdoor fungal types were identified on one or more sampled surfaces. These mold types are frequently found in ambient air and may settle on surfaces, even in areas that appear clean and free of visible mold. The identified molds were reported by the laboratory at medium density levels. While these findings do not necessarily indicate active mold growth, they may reflect elevated spore deposition or insufficient air filtration. Please refer to the Recommendations section at the end of this report for appropriate guidance on cleaning or environmental control.

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

Surface Sample Result Determination Acceptance Guide Determination Details

Normal indoor molds, in low quantity, consistent with settled outdoor spores or natural dust. No remediation needed. Appears to be typical fungal types for an indoor environment. Conditions are indicative of supporting good indoor air quality.Yes Examples:

e Cladosporium, Basidiospores, Ascospores, or Smut/Myxomycete spores in trace amounts.

¢ No water-indicating molds found.

Presence of mold types that are not inherently dangerous but may suggest elevated moisture, poor air exchange, or developing conditions. Watchful monitoring or minor intervention may be warranted. May signal early stages of

Marainal mold growth or conditions favoring it.

J Examples:

e Low levels of Aspergillus/Penicillium-like spores.

e Moderate amounts of Cladosporium on interior surfaces.

e Slightly elevated counts of moisture-indicating fungi.

Mold types associated with active growth, chronic moisture, or health risks, regardiess of amount. Professional remediation is typically required. The mold detected is not consistent with a clean, dry indoor environment. Conditions are indicative of potentially causing negative impacts to indoor air quality.

Examples:

No e Any presence of Stachybotrys, Chaetomium, Memnoniella, Ulocladium (water damage indicators).

e Elevated levels of Aspergillus, Penicillium, Trichoderma, or Acremonium on interior surfaces.

e Mold growth structures (e.g., hyphae, conidiophores) visible, indicates colonization.

Note: Particulate loading describes the visual quality of the sample and affects interpretation reliability, but not whether the result is acceptable. Acceptability is determined by the mold type(s) found; not how much debris is on the tape. Even a small amount of toxic or water-damage mold (e.g., Stachybotrys, Chaetomium, etc.) makes the sample not acceptable, regardless of loading or visible growth.

Species Detected and Information

1. Cladosporium sp.

e Common Locations: Dead plants, woody vegetation, windowsills, painted surfaces, HVAC insulation e Associated Materials: Paint, textiles, insulation backing, wood trim e Growth Conditions: Thrives on damp cellulose materials such as wood, gypsum board, HVAC insulation, and painted surfaces. Often one of the first molds appears in environments with elevated humidity.

e Health Effects:

a. Common allergens, causing hay fever, asthma, and sinusitis

b. May contribute to skin and nail infections in immuno-compromised individuals

c. Not typically toxigenic but produces irritant compounds

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236 e Assessment Note: Frequently detected in both outdoor and indoor environments at low levels; elevated indoor levels indicate poor ventilation or moisture intrusion.

2. Penicillium sp.

e Common Locations: Soil, decaying organic matter, stored food, drywall, wallpaper glue e Associated Materials: Drywall paper, carpet backing, upholstery, food waste e Growth Conditions: Grows rapidly on water-damaged materials including wallpaper, carpet, HVAC filters, and insulation. Often flourishes in cool, damp indoor environments.

e Health Effects:

a. Allergenic; known to cause hypersensitivity pneumonitis and chronic sinus infections

b. Few species produce mycotoxins (e.g., citrinin, patulin — both food based)

c. Can trigger asthma attacks and respiratory inflammation

Assessment Note: High concentrations indoors are a red flag for prolonged moisture problems and possible contamination of hidden cavities.

3. Aspergillus sp.

e Common Locations: Soil, dust, stored grains, food, HVAC systems e Associated Materials: Ceiling tiles, insulation, wallboard, organic dust, duct interiors e Growth Conditions: Common in soil and dust; grows on damp drywall, ceiling tiles, HVAC ducts, and food residues. Prefers warm, humid environments.

e Health Effects:

a. Can cause allergic reactions and chronic respiratory symptoms

b. Species like A. fumigatus and A. flavus may cause invasive aspergillosis in immunocompromised individuals

c. Toxin production varies by species and substrate (e.g., aflatoxins — typically food based) e Assessment Note: Regularly found indoors, but elevated levels — especially in hidden zones — warrant prompt corrective actions.

Ambient Temperature, Relative Humidity, and Dew Point Environmental conditions — especially temperature, relative humidity (RH), and dew point

— are critical indicators for mold growth potential.

Sustained RH above 65% or a dew point at or above 600F creates an environment conducive to fungal colonization, even in the absence of direct water intrusion.

Standards Referenced e ASHRAE Standard 62.1-2022:

o Advises keeping indoor dew point less than 600F and RH less than 65% to prevent microbial growth.

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236 e ASHRAE Standard 55-2020:

o Defines thermal comfort zones for occupants:

" Temp: 73—790F (summer), 68—74.50F (winter)

* RH: 25-60%

Ambient Air Environmental Measurements

Sample ID Location aie 4) Peer) int Interpretation

M1 Outside/Comparison 71.3 0F 63.3 0F 75.6% ---

M2 Inside/Warehouse 72.5 0F 63.7 0F 73.9% Acceptable T3 Tape — Wall --- --- --- ---

Measurements Conclusions All environmental measurements at this location — including dew point, relative humidity, and temperature — were within industry-accepted ranges for comfort and indoor mold prevention. These results are indicative of a well-balanced and properly conditioned indoor environment in line with ASHRAE 62.1-2022 and 55-2020 standards.

AmbientAir Threshold Guide (ASHRAE-Based) Condition Type Range Interpretation

<60% Acceptable Relative Humidity 60-64.9% Marginal

265% Elevated (Mold Risk) <550F Acceptable

Dew Point 55-59.90F Marginal 2600F Elevated (Mold Risk)

Temperature (Regional) 73-790F

Comfortable<680F or >790F Outside Comfort Range

Visual and Sensory Observations

Observations on Day of Inspection e Odor-Related Observations o No atypical or musty odors were detected within the building at the time of inspection.

e Surface and Material Conditions o Staining or discoloration was present on drywall along the wall, but no active water damage was observed at the time of inspection.

o Surface-level microbial staining was observed on [material], suggestive of past moisture exposure.

e Mechanical and HVAC Conditions o HVAC supply and return vents appeared clean and free of microbial or dust buildup.

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236 e Moisture and Environmental Indicators o Temperature, RH, and dew point values were consistent with healthy indoor air quality in all tested zones.

o Building materials in occupied zones were within acceptable levels at the time of inspection.

Overall, on-site observations were normal. Where visible, building components appeared dry, and environmental conditions were supportive for mold prevention or growth.

Conclusions At the time of assessment, the conditions observed at this location do not meet the threshold fora regulated mold condition as defined by the Texas Department of Licensing and Regulation (TDLR) in accordance with 16 TAC §78.140. A regulated condition is only triggered when 25 or more contiguous square feet of visible mold growth is identified on interior building components. A copy of the Consumer Mold Information Sheet (CMIS), as required by TDLR, is included in this report for your reference.

In this case, the following conditions were observed, and the total affected area was less than the state-regulated threshold (25 contiguous square feet). Therefore, state-mandated remediation protocols are not currently required:

e At the time of inspection, no indoor air quality concern was identified within the building.

e Airborne mold spore concentrations were lower than or comparable to outdoor baseline levels, and no surface mold was observed.

e Environmental conditions (temperature, relative humidity, dew point) were within acceptable ranges, supporting a stable and dry indoor environment.

e Building materials were confirmed to be dry, and no visible signs or noticeable odors associated with microbial activity were detected.

e The above is indicative of supporting good indoor air quality.

Recommendations e No corrective action is required at this time. Routine HVAC maintenance and filter replacement, ensuring AC vents are dry and free of dust and moisture, RH monitoring, and continued ventilation are recommended to maintain good indoor air quality. Maintain the thermostat setting to “auto”.

e Monitor the identified area periodically, particularly during seasonal humidity spikes or after heavy rain.

e Consider upgrading to MERV 11 or higher HVAC filtration to help reduce indoor bioaerosol concentrations, especially in sensitive environments. Consult with your HVAC provider or review your system specifications to ensure it can support MERV 11 or higher filters.

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

Should future construction, demolition, or renovation activities reveal additional areas of microbial growth or water damage, Astex recommends suspending further work until a licensed MAC (i.e. Astex) re-evaluates conditions and determines whether regulatory thresholds have been met (i.e., 25 or more contiguous square feet of mold growth).

Surface Cleaning For light to moderate mold contamination under state-regulated levels on non-porous surfaces, routine cleaning can typically be performed using readily available, over-the-counter mold cleaners. These products are generally effective for removing visible mold when used as directed. The following products are recommended based on availability, effectiveness, and typical use in residential and light commercial settings. Always follow the manufacturer’s safety instructions, wear appropriate personal protective equipment, and ensure the area is well-ventilated during use.

Recommended Over-the-Counter Mold Cleaners EPA-Registered Disinfectants (Preferred) These products are registered with the Environmental Protection Agency (EPA) for use against mold and mildew and are often labeled as fungicidal. Regardless of sanitizer type, always use for the intended purpose and strictly within the manufacturer's directions.

e Concrobium Mold Control o Kills and prevents mold.

o Leaves an antimicrobial barrier.

o Odorless and non-toxic.

o Available at Home Depot, Lowe's, and Amazon.

e RMR-141 Disinfectant Cleaner o Hospital-grade disinfectant that kills mold and mildew.

o Also deodorizes and sanitizes.

o EPAregistered.

e Fiberlock Shockwave RTU (or concentrate) o Commercial-grade cleaners are often used by remediation professionals.

o EPA-registered disinfectants and sanitizer.

o Available online or in restoration supply stores.

e Foster 40-80 First Defense Disinfectant o Commercial-grade cleaners are often used by remediation professionals.

o EPA-registered disinfectants and sanitizer.

o Available online or in restoration supply stores.

Household Mold Cleaners (Retail Brands) These are widely available and effective for visible surface mold on tile, grout, and sealed maiterials.

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236 e Clorox Tilex Mold & Mildew Remover o Contains bleach.

o Good for bathroom tile and caulking.

o Not for porous or delicate surfaces.

e Lysol Mold & Mildew Remover o Bleach-based.

o Works well on bathroom and kitchen surfaces.

e CLR Mold & Mildew Clear o Non-bleach formula.

o Suitable for hard surfaces, often less harsh on materials.

Governing Agencies and Industry Standards This assessment references the standards and practices of key applicable agencies:

TDLR (Texas Department of Licensing and Regulation) Governs the licensing and regulatory framework for mold assessment and remediation in Texas. A mold condition becomes “regulated” under Texas law when 25 contiguous square feet or more of mold growth is identified on building materials.

AIHA (American Industrial Hygiene Association) An authority on occupational and environmental health standards, whose Environmental Microbiology Laboratory Accreditation Program (EMLAP) certifies labs for mold spore analysis and establishes best practices for sampling and interpretation.

ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning_Engineers) A global standards organization that develops building system performance guidelines.

e Standard 62.1-2022 defines ventilation and indoor air quality thresholds to prevent microbial growth (e.g., dew point <600F and RH <65%).

e Standard 55-2020 sets acceptable ranges for indoor thermal environmental conditions (temperature and relative humidity) for human comfort.

OSHA (Occupational Safety and Health Administration) A federal agency that sets permissible exposure limits (PELs) for airborne contaminants, including respirable particulates and nuisance dusts. While OSHA limits apply specifically to occupational settings, they are often referenced in IAQ assessments to gauge relative safety thresholds in non-work environments.

CDC (Centers for Disease Control and Prevention) / EPA (Environmental Protection Agency) While the CDC and EPA do not regulate indoor mold levels, both acknowledge that indoor mold exposure — especially to sensitive individuals — can result in a range of health effects from allergies to respiratory distress. The EPA recommends proactive remediation of mold regardless of the species when visible growth or persistent musty odors are present.

Limitations

1. Limited to Observed and Accessible Conditions This assessment is based solely on observations and data collected during the inspection date and is limited to the accessible and visually observable areas of the structure. No destructive testing was performed unless explicitly noted, and conditions concealed within walls, ceilings, or other enclosed areas may not have been detectable during the assessment.

2. Mold Growth and IAQ Conditions Are Variable

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

Indoor air quality and microbial conditions can change rapidly and may be influenced by occupant activity, weather, building use, or unreported water events. As such, the findings in this report represent a snapshot in time and may not reflect past or future conditions.

3. No Guarantee of Future Conditions This report is based on conditions observed at the time of assessment and professional judgment in accordance with industry standards. Astex does not provide any warranty or guarantee regarding the absence of future mold growth, indoor air quality concerns, or related health impacts beyond the date of inspection. Recommendations are intended to reduce risk. Astex is not liable for subsequent environmental conditions or damages, regardless of whether the recommendations are implemented in full, in part, or not at all.

4. Reliance on Sampling and Laboratory Interpretation Mold and IAQ assessments rely on air, surface, and environmental data that are subject to sampling and laboratory limitations. Airborne mold spores fluctuate throughout the day and may vary minute-to-minute. The absence of detectable mold in air or surface samples does not guarantee the absence of fungal growth or contamination in hidden or inaccessible areas.

5. Health & Safety Disclaimer This assessment does not include a medical or toxicological evaluation of indoor air conditions, nor does it provide health-based clearance regarding occupancy safety. Astex does not render medical advice or diagnoses. Any occupant experiencing symptoms potentially related to mold exposure should consult a qualified healthcare professional. Because no definitive regulatory guidelines exist for classifying indoor air conditions as hazardous, determinations regarding health risks remain the responsibility of the property owner, occupants, and/or their healthcare providers.

6. No Legal Determination Rendered This report is not intended to be used as a legal document or for litigation purposes unless expressly contracted in writing.

It is offered as a professional opinion based on description of the scope of work by “others”, available data at the time of inspection, and is subject to interpretation under applicable regulations and guidelines.

7. Responsibility for Post-Assessment Conditions Astex is not responsible for new or worsening conditions that may develop after the inspection date, including (but not limited to) leaks, humidity changes, structural damage, or changes in HVAC operation. It is the responsibility of the building owner, manager, or authorized representative to monitor and maintain the space following delivery of this report.

8. Attic, Crawlspace, and Wall Cavity Limitations Areas such as attics, crawlspaces, and wall cavities may be evaluated at the discernment of the assessor(s) and only where safely accessible and observable. Due to structural design, insulation, or finish materials, full visibility of these spaces may be limited, and mold activity may be concealed from view.

9. Third-Party Remediation Outcomes Astex is not responsible for the work, results, or warranties provided by third-party remediation contractors. Post-remediation verification services may be recommended by Astex to confirm that remediation has been successfully completed in accordance with state guidelines.

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

PCBs

Polychlorinated biphenyls (PCBs), originally termed "chlorinated biphenyl’s," were commercially produced as complex mixtures containing multiple isomers at different degrees of chlorination. In the United States, commercial production of PCBs was taken over in 1929 by Monsanto Company from Swann Chemical Company. Manufacturing levels increased in response to the electrical industry's need for a "safer" (than flammable mineral oil) cooling and insulating fluid for industrial transformers and capacitors. PCBs were also commonly used as stabilizing additives in the manufacture of flexible PVC coatings for electrical wiring and electronic components to enhance the heat and fire resistance of the PVC.

PCBs were used as coolants and insulating fluids (transformer oil) for transformers and capacitors, especially in components of early fluorescent light fittings and electrical transformers, and as plasticizers in paints and cements, stabilizing additives in flexible PVC coatings of electrical wiring and electronic components, pesticide extenders, cutting oils, reactive flame retardants, lubricating oils, hydraulic fluids, and sealants (for caulking in schools and commercial buildings), adhesives, wood floor finishes (such as Fabulon and other products of Halowax in the U.S.), paints, de-dusting agents, water-proofing compounds, casting agents, vacuum pump fluids, fixatives in microscopy, surgical implants, and in carbonless copy ("NCR") paper. PCB congeners are odorless, tasteless, clear to pale-yellow, viscous liquids (highly chlorinated mixtures are more viscous and deeper yellow). They are formed by electrophilic chlorination of biphenyl with chlorine gas.

PCBs are very stable compounds and do not decompose readily. Their destruction by chemical, thermal, and biochemical processes is extremely difficult, and presents the risk of generating extremely toxic dibenzodioxins and dibenzofurans through partial oxidation.

Intentional degradation as a treatment of unwanted PCBs generally requires high heat or catalysis.

On the date of the inspection (January 22, 2026), no noteworthy PCB containing building components were identified.

MERCURY

Mercury has many industrial uses and applications. Upon inspection you will find that it is present in several items commonly found in commercial buildings. Most mercury compounds are also toxic and readily absorbed and accumulated by the body. Some common building components and items which contain elemental mercury include thermometers, barometers, switches, thermostats, flowmeters, and laboratory reagents (e.g., mercuric salts and oxides), pesticides, paints and stains, batteries, and fluorescent lamps.

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

Elemental mercury is a volatile toxic heavy metal. Mercury is an unusual metal in that it can evaporate at room temperature. Also, mercury is a neurotoxin which means it can adversely affect the central nervous system. Upon exposure, mercury tends to accumulate quickly in the brain where it tightly binds with the tissue and is released at a very slow rate. In addition, inorganic and organic mercuric compounds are also commonly found in structures. Mercuric compounds can pose the following types of health hazards:

toxic to lethal via ingestion or absorption, toxic to the following organs or systems: central nervous system, digestive system, kidney, liver, and skin. Because mercury and its compounds tend to be readily absorbed and accumulated by the body, it is imperative to identify potential sources of mercury within the building as well as potential activities that could result in the release and exposure to these materials. Due to the pervasiveness of mercury and its compounds in the construction of building materials (e.g., thermostats and fluorescent lights) total elimination is not possible. However, the wisest strategy appears to be that of identification and elimination where possible. Where replacement and elimination is not possible, then efforts should be taken to minimize the risk of release of these materials as well as establishing a contingency plan for properly handling any releases that may occur. If proper spill response is not initiated, then these materials can pose a long-term health hazard to building occupants. The final component would be establishing policies and procedures for promoting the proper recycling and disposal of mercury and its compounds in order to prevent its release to the environment and to promote compliance with state and federal Universal Waste Disposal requirements.

On the date of the inspection (January 22, 2026), no noteworthy Mercury containing building materials were identified.

End of Report

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

If you or any permitting agencies have any inquiries pertaining to the testing procedures, results, or the contents of this report, please do not hesitate to contact me by phone at

(210) 828-9800. | am readily available to address any concerns or provide additional details as needed.

Sincerely, Stephen Jimenez, BS, MSIH, GSP General Manager TDSHS Asbestos Individual Consultant, 105764 TDSHS Lead Risk Assessor, 2071040 TDLR Mold Assessment Consultant, MAC1320

Astex Environmental Services TDSHS Asbestos Consultant Agency, 100436 TDSHS Asbestos Laboratory (PCM), 300393 TDSHS Lead Firm, 2110460 EPA Lead-Safe Firm, NAT-61442-4 TDLR Mold Assessment Company, ACOQ1060

APPENDICES

A — Photographs B — Lead Laboratory Analytical Results C — Asbestos Laboratory Analytical Results D — Mold Laboratory Analytical Results E — Licenses & Certifications

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

APPENDIX A

PHOTOGRAPHS

Astex Project No.: AE2620024-B

Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

Photo 03 Photo 04

CIFMAX

MIN

AGAWA

Photo 05 Photo 06

Astex Project Number: AE2620024-B

Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

Photo 07 Photo 08

Photo 09 Photo 10

Photo 11

Astex Project Number: AE2620024-B

Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

APPENDIX B

LEAD XRF ANALYTICAL RESULTS

Manufacturer: Viken DetectionModel: Pb200eType: XRF Lead Paint AnalyzerSerial Number: 2897App Version: Pb200i-5.3.1 JBSA - LacklandBuilding2989Project Address: JBSA-Lackland, San Antonio,TexasProject Number: AE-26-20024-BDate of Inspection:1/22/26Concentration(mg/cm2)Reading Result Structure -->Member Side Condition Color Substrate4234‘678910111213141516171819 ot

AQUN

0.800.800.100.100.100.900.100.100.100.100.100.200.200.200.100.100.200.100.000.200.20 CalibrationCalibration —CalibrationCalibrationCalibrationCalibrationNegativeNegativeNegativeNegativeNegativeNegativeNegativeNegativeNegativeNegativeNegativeNegativeNegativeNegativeNegative CommercialCommercialCommercialCommercialCommercialCommercialExteriorExteriorExteriorExteriorExteriorExteriorExteriorExteriorCommercial WarehouseWarehouseWarehouseWarehouseWarehouseWarehouseBuildingBuildingBuildingBuildingBuildingBuildingBuildingBuilding WallWallBeamRafterDoorDoorDoorWallWallWindowColumnTrim~ WallWallWarehouse Window

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Facility 2989 MPLS, Training Lodge Support Building, JBSA-Lackland, San Antonio, Texas 78236

APPENDIX C

ASBESTOS LABORATORY ANALYTICAL RESULTS

Environmental 13201 Northwest Freeway, Suite 520

. Houston, Texas 77040

Analytical phone 713-343-4017 | fax…