Total Report.pdf

AEHS, Inc.

An Environmental, Health, and Safety Consulting Firm 4402 Center Gate, San Antonio, Texas 78217 (210) 656-9300 fax (210) 656-8499

July 29, 2026

Mr. Robert Martinez

Audie Murphy VA Medical Center

7400 Merton Minter Street

San Antonio, TX 78229

Mr. Martinez:

This letter provides the written results of the limited Indoor Air Quality Investigation of

4B, 4th Floor – West. The investigation occurred on 22 July 2026 with the primary purpose to determine the impact of the water intrusion in the ducts above the ceiling.

The investigation was conducted by Ronald Bishop, MPH, CIH. He was assisted by Erica

Madrid. Ron is a Certified Industrial Hygienist, Certified Safety Executive, Certified

Environmental and Safety Compliance Officer as well as a Texas Department of Licensing and Regulation licensed Mold Assessment Consultant (MAC 106), a Texas Department of

State Health Services licensed Lead Risk Assessor and Project Designer and Asbestos

Consultant, a Green Consultant, and a Radon Measurement Professional.

The specific objectives of this investigation are depicted below:

1. Visual Assessment with Photographic Documentation.

Perform a detailed visual assessment.

Provide photographic documentation.

2. Particle Dosimetry.

Perform Particle Dosimetry throughout the area.

Perform Particle Dosimetry above the ceiling.

Perform Particle Dosimetry outside the building at the beginning of the sampling episode.

3. Temperature and Humidity Measurements.

Measure the temperature and humidity measures at all locations of the particle dosimetry.

4. Thermal Imaging.

Perform thermal imaging throughout the area to depict moisture and mold.

5. Mold Sampling.

Air:

Perform non-culturable air sampling outside the building at the beginning and end of the sampling episode.

Perform non-culturable air sampling at three locations within the occupied area of concern.

Perform non-culturable air sampling at three locations above the suspended ceiling within the hallway of the occupied area of concern.

Bulk/Tape Lift/Swab:

Collect Bulk/Tape Lift/Swab samples as appropriate.

Findings and Discussions.

1. Visual Assessment.

• Photographic documentation is at Enclosure 1.

• Ceiling.

o The halls had a suspended ceiling of tiles.

o The patient and other rooms had solid ceilings.

o The utility space (IBS) was directly above the ceiling accessed by catwalks and containing water pipes, ventilation ducts, etc.

• Water staining on the ceiling tiles was present throughout the area.

• The ceiling grid was rusted at multiple locations.

• The insulation on the ventilation ducts was saturated with water which was most likely due to leaks in the hard supply (cool) ducts.

• Visible mold was present on the duct insulation, pipe insulation, and backside of the ceiling tiles.

• The IBS was under positive pressure.

• Visible mold was present on the solid ceiling of Room B431 near the light fixture due to normal air leakage.

2. Particle dosimetry.

• The result of the particle dosimetry is at Enclosure 2.

• The particle discernment indicated mold growth both within the occupied space as well as within the IBS.

• The total number of particles was significantly higher in the IBS when compared to the occupied space.

3. Temperature and Relative Humidity.

• All measurements within the occupied area were at levels that were not conducive to mold growth.

• All measurements in the IBS were at levels that were conducive to mold growth.

4. Thermal Imaging.

• Thermal images depicting typical locations throughout the area are at Enclosure 3.

• The thermal imaging verified the mold growth and moisture.

5. Laboratory Results:

• The actual laboratory results are Enclosure 4.

• Air:

o High amounts of Cladosporium species were detected as to be expected.

o Elevated Penicillian/Aspergillis species levels were found inside in both the occupied area as well as the IBS.

o Statistical analysis: The MoldSCORE™, which is a unique statistical method for examining air sampling data, was used to evaluate the air sampling results. It compares air sample results with the outdoors and scores each location between 100 and 300, with 100 indicating a greater likelihood that the airborne indoor spores originated from the outside, and

300 indicating a greater likelihood that they originated from an inside source. The Result displayed is based on the numeric score given and will be either Low, Medium, or High, indicating a low, medium, or high likelihood that the spores detected originated from an indoor source. All

MoldSCORE™ results, of all samples, were high medium or high. This means that it is likely that the mold originated indoors.

o The Spearman Rank Correlation and Agreement ratio statistics support the

MOLDSCORE™ results.

o The predominate spores found interior were those of Penicillium/

Aspergillus types while the exterior sample depicted the primary species to be Cladosporium. Cladosporium spores are found over 90 % of all outdoor samples taken in the San Antonio area.

• Bulk:

o A high amount of Cladosporium species was present.

The analyses for mold were performed by EMLab P&K which is licensed in Texas as well as AIHA Certified.

Conclusions.

1. The leaks in the supply ventilation ducts coupled with the lack of total integrity in the insulation were causing the mold amplification.

2. The IBS being under positive pressure, due to the ventilation duct leaks, will cause permeation of mold spores into the occupied area to include patient rooms.

3. Temporary solutions such as wiping the mold with a biocide will be ineffective and not cost effective.

Recommendations.

1. Share the results of this investigation with the occupants.

2. Replace the insulation on all ducts and pipes after repair of the duct leaks.

Note: This may require removal of the hard ceilings as well as the ceiling tiles.

If you have any questions or desire additional information, please contact Ron Bishop at telephone (210) 656-9300.

Sincerely, Ronald M. Bishop, MPH, CIH

4 Enclosures

1. Photographs

2. Particle Dosimetry

3. Thermal Images

4. Mold Laboratory Results

Enclosure 1

Photographs

4B, Photographs – 22 July 2026

1. Above ceiling depicting mold growth and bulging 2. Bulk Sample insulation

3. Typical stained ceiling tile 4. Typical sample location

5. Clean Utility Room – Storage of clean material 6. B431 - Stained hard ceiling, residual of water on lens

Audie L. Murphy VA Medical Center

Area 4B

San Antonio, Texas

1. Front entrance of the VA 2. Outside air sample, 4219 9444

3. Hall by B429 air sample, 4220 1151 4. Hall by B424 air sample, 4420 4087

5. Hall by B408 air sample, 4220 4089 6. Outside air sample, 4220 1065

Enclosure 2

Particle Dosimetry

4B, 4th Floor

A B C D E F G H I J K

Timestamp Location 0.3 micron 0.5 micron 1.0 micron 2.5 micron 5.0 micron 10.0 micron Total Particles Temperature Relative Humidity (Name) (Counts) (Counts) (Counts) (Counts) (Counts) (Counts) (Counts) (F) (%)

7/22/2026 9:56:45 Outside beginning 96569 17831 9761 3667 366 60 128254 96.9 39.4

7/22/2026 10:02:12 Entrance Lobby 39110 4132 1695 688 154 52 45831 77.8 46.3

7/22/2026 10:22:20 Hall outside B437 27296 3591 1611 479 34 8 33019 72.9 53.7

7/22/2026 10:26:26 Hall outside B434 34097 4422 1950 589 36 17 41111 72.9 54.7

7/22/2026 10:28:34 Hall outside B429 41149 5282 2540 726 79 48 49824 72.9 54.5

7/22/2026 10:34:09 Above ceiling tile outside B429 118959 17001 8406 2779 189 10 147344 75.8 72.8

7/22/2026 10:42:52 Hall outside B427 36727 5016 2567 761 115 45 45231 73.9 55.8

7/22/2026 10:44:28 Inside B427 24858 3143 1315 385 27 5 29733 73.9 51.0

7/22/2026 10:48:09 Nursing Station B421 40767 5556 2557 685 40 16 49621 73.9 53.9

7/22/2026 10:55:20 Outside B416 46041 6452 2925 901 123 41 56483 75.3 54.0

7/22/2026 11:00:07 Above ceiling tile outside NS 421 112088 16322 8291 2605 139 7 139452 77.8 69.6

7/22/2026 11:05:45 Inside B419 39909 5414 2448 688 61 18 48538 75.3 53.1

7/22/2026 11:09:09 Inside B431, Clean Utility 29519 3537 1443 378 26 4 34907 73.4 51.9

7/22/2026 11:13:23 At Nursing Station B408 49779 5947 2520 701 66 19 59032 74.4 53.5

7/22/2026 11:18:27 Above ceiling tile at NS B408 108275 15556 7424 2323 133 6 133717 76.3 69.0

49253.8 6601.2 3097.5 951.2 83.8 22.3 74.6 55.8

118959.0 17001.0 8406.0 2779.0 189.0 52.0 77.8 72.8

24858.0 3143.0 1315.0 378.0 26.0 4.0 72.9 46.3

30275.0 4574.5 2384.5 787.4 54.5 17.6 1.7 7.3

Statistics for interior only Average

Maximum

Minimum

Standard Deviation

Instrument Model: HH 3016 IAQ

Instrument Serial #: 200944001

Downloaded On: 7/23/2026 07:14:25

Particle Data: Differential

Particle Density: 2.500 g/ml

Enclosure 3

Thermal Images

Thermal Imaging – 4B, 4th Floor

22 July 2026

1. Typical water pooled inside duct insulation 2. Typical water on pipes

3. Water above the hard ceiling in Room B431

Enclosure 4

Laboratory Results

Approved by:

Business Unit Manager Scott Ward

Report for:

Mr. Ronald Bishop, Mr. Matthew Bishop AEHS, Inc.

4402 Centergate San Antonio, TX 78217

Regarding:

Eurofins Built Environment Testing Central, LLC Project: San Antonio VA; Area 4B

EML ID: 4632505

All samples were received in acceptable condition unless noted in the Report Comments portion in the body of the report. Due to the nature of the analyses performed, field blank correction of results is not applied. The results relate only to the samples as received and tested. Information supplied by the client which can affect the validity of results: sample air volume.

Eurofins Built Environment Testing Central, LLC ("the Company"), a member of the Eurofins Built Environment Testing group of companies, shall have no liability to the client or the client's customer with respect to decisions or recommendations made, actions taken or courses of conduct implemented by either the client or the client's customer as a result of or based upon the Test Results.

In no event shall the Company be liable to the client with respect to the Test Results except for the Company's own willful misconduct or gross negligence nor shall the Company be liable for incidental or consequential damages or lost profits or revenues to the fullest extent such liability may be disclaimed by law, even if the Company has been advised of the possibility of such damages, lost profits or lost revenues. In no event shall the Company's liability with respect to the Test Results exceed the amount paid to the Company by the client therefor.

Dates of Analysis:

Spore trap analysis: 07-28-2026

Service SOPs: Spore trap analysis (EBET-DE-SOP89537(formerly EB-MY-S-1038)) AIHA LAP, LLC accredited service, Lab ID #157714

Eurofins Built Environment Testing Central, LLC's LabServe® reporting system includes automated fail-safes to ensure that all AIHA LAP, LLC quality requirements are met and notifications are added to reports when any quality steps remain pending.

EMLab ID: 4632505, Page 1 of 6Eurofins Built Environment Testing Central, LLC

Eurofins Built Environment Testing Central, LLC 3113 Red Bluff Road, Pasadena, TX 77503 713-290-0223 www.eurofinsus.com/Built

Client: AEHS, Inc.

C/O: Mr. Ronald Bishop, Mr. Matthew Bishop Re: San Antonio VA; Area 4B

Date of Sampling: 07-22-2026 Date of Receipt: 07-23-2026 Date of Report: 07-28-2026

SPORE TRAP REPORT: NON-VIABLE METHODOLOGY

Location: 4219 9444:

Outside 4220 1151:

Hall by B429 Comments (see below) A A

Lab ID-Version‡: 23374711-1 23374712-1

Analysis Date: 07/28/2026 07/28/2026 raw ct. % read spores/m3 raw ct. % read spores/m3 Alternaria 6 100 80 Ascospores 5 25 270 Basidiospores 150 25 8,000 23 25 1,200 Beltrania 3 100 40 Bipolaris/Drechslera group 7 100 93 Cercospora 2 100 27 Chaetomium Cladosporium 64 25 3,400 8 25 430 Curvularia 2 100 27 Epicoccum Ganoderma Nigrospora 17 100 230 Other brown 1 100 13 Penicillium/Aspergillus types† 10 25 530 Pithomyces 1 100 13 Rusts 1 100 13 Smuts, Periconia, Myxomycetes 21 100 280 Stachybotrys Stemphylium Torula 4 100 53 Ulocladium Background debris (1-4+) 3+ 1+ Hyphal fragments/m3 160 < 13 Pollen/m3 330 13 Skin cells (1-4+) < 1+ 2+ Sample volume (liters) 75 75 § TOTAL SPORES/m3 13,000 2,200 Comments:A) Analysis of replicate sample is delayed.

EMLab ID: 4632505, Page 2 of 6Eurofins Built Environment Testing Central, LLC

Spore types listed without a count or data entry were not detected during the course of the analysis for the respective sample, indicating a raw count of <1 spore.

† The spores of Aspergillus and Penicillium (and others such as Acremonium, Paecilomyces) are small and round with very few distinguishing characteristics. They cannot be differentiated by non-viable sampling methods. Also, some species with very small spores are easily missed, and may be undercounted.

††Background debris indicates the amount of non-biological particulate matter present on the trace (dust in the air) and the resulting visibility for the analyst. It is rated from 1+ (low) to 4+ (high). Counts from areas with 4+ background debris should be regarded as minimal counts and may be higher than reported. It is important to account for samples volumes when evaluating dust levels.

The analytical sensitivity is the spores/m^3 divided by the raw count, expressed in spores/m^3, per spore and per sample.

For more information regarding analytical sensitivity, please contact QA by calling the laboratory.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".

§ Total Spores/m3 has been rounded to two significant figures to reflect analytical precision.

713-290-0223 www.eurofinsus.com/Built

Client: AEHS, Inc.

C/O: Mr. Ronald Bishop, Mr. Matthew Bishop Re: San Antonio VA; Area 4B

Date of Sampling: 07-22-2026 Date of Receipt: 07-23-2026 Date of Report: 07-28-2026

SPORE TRAP REPORT: NON-VIABLE METHODOLOGY

Location: 4220 1072:

Above Hall by B429 4220 4087:

Hall by B424 Comments (see below) A B

Lab ID-Version‡: 23374713-1 23374714-1

Analysis Date: 07/28/2026 07/28/2026 raw ct. % read spores/m3 raw ct. % read spores/m3 Alternaria 1 100 13 9 100 120 Ascospores 7 25 370 Basidiospores 92 25 4,900 16 25 850 Beltrania Bipolaris/Drechslera group 1 100 13 2 100 27 Cercospora 3 100 40 Chaetomium Cladosporium 57 25 3,000 28 25 1,500 Curvularia Epicoccum 1 100 13 2 100 27 Ganoderma Nigrospora 5 100 67 3 100 40 Other brown Penicillium/Aspergillus types† 11 25 590 7 25 370 Pithomyces Rusts Smuts, Periconia, Myxomycetes 1 100 13 1 100 13 Stachybotrys Stemphylium Torula Ulocladium Background debris (1-4+) 2+ 1+ Hyphal fragments/m3 40 < 13 Pollen/m3 40 < 13 Skin cells (1-4+) 1+ 1+ Sample volume (liters) 75 75 § TOTAL SPORES/m3 9,100 2,900 Comments:A) Analysis of replicate sample is delayed. B) Secondary data review is delayed.

EMLab ID: 4632505, Page 3 of 6Eurofins Built Environment Testing Central, LLC

Spore types listed without a count or data entry were not detected during the course of the analysis for the respective sample, indicating a raw count of <1 spore.

† The spores of Aspergillus and Penicillium (and others such as Acremonium, Paecilomyces) are small and round with very few distinguishing characteristics. They cannot be differentiated by non-viable sampling methods. Also, some species with very small spores are easily missed, and may be undercounted.

††Background debris indicates the amount of non-biological particulate matter present on the trace (dust in the air) and the resulting visibility for the analyst. It is rated from 1+ (low) to 4+ (high). Counts from areas with 4+ background debris should be regarded as minimal counts and may be higher than reported. It is important to account for samples volumes when evaluating dust levels.

The analytical sensitivity is the spores/m^3 divided by the raw count, expressed in spores/m^3, per spore and per sample.

For more information regarding analytical sensitivity, please contact QA by calling the laboratory.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

713-290-0223 www.eurofinsus.com/Built

Client: AEHS, Inc.

C/O: Mr. Ronald Bishop, Mr. Matthew Bishop Re: San Antonio VA; Area 4B

Date of Sampling: 07-22-2026 Date of Receipt: 07-23-2026 Date of Report: 07-28-2026

SPORE TRAP REPORT: NON-VIABLE METHODOLOGY

Location: 4220 1064:

Above Hall by B424 4220 4089:

Hall by B408 Comments (see below) B B

Lab ID-Version‡: 23374715-1 23374716-1

Analysis Date: 07/28/2026 07/28/2026 raw ct. % read spores/m3 raw ct. % read spores/m3 Alternaria 3 100 40 4 100 53 Ascospores 5 25 270 Basidiospores 2 25 110 Beltrania Bipolaris/Drechslera group 5 100 67 1 100 13 Cercospora Chaetomium Cladosporium 61 25 3,300 18 25 960 Curvularia 3 100 40 Epicoccum 1 100 13 2 100 27 Ganoderma Nigrospora 3 100 40 Other brown Penicillium/Aspergillus types† 14 25 750 8 25 430 Pithomyces Rusts Smuts, Periconia, Myxomycetes 2 100 27 1 100 13 Stachybotrys Stemphylium Torula Ulocladium Background debris (1-4+) 3+ 2+ Hyphal fragments/m3 < 13 < 13 Pollen/m3 < 13 < 13 Skin cells (1-4+) 1+ 1+ Sample volume (liters) 75 75 § TOTAL SPORES/m3 4,600 1,500 Comments:B) Secondary data review is delayed.

EMLab ID: 4632505, Page 4 of 6Eurofins Built Environment Testing Central, LLC

Spore types listed without a count or data entry were not detected during the course of the analysis for the respective sample, indicating a raw count of <1 spore.

† The spores of Aspergillus and Penicillium (and others such as Acremonium, Paecilomyces) are small and round with very few distinguishing characteristics. They cannot be differentiated by non-viable sampling methods. Also, some species with very small spores are easily missed, and may be undercounted.

††Background debris indicates the amount of non-biological particulate matter present on the trace (dust in the air) and the resulting visibility for the analyst. It is rated from 1+ (low) to 4+ (high). Counts from areas with 4+ background debris should be regarded as minimal counts and may be higher than reported. It is important to account for samples volumes when evaluating dust levels.

The analytical sensitivity is the spores/m^3 divided by the raw count, expressed in spores/m^3, per spore and per sample.

For more information regarding analytical sensitivity, please contact QA by calling the laboratory.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

713-290-0223 www.eurofinsus.com/Built

Client: AEHS, Inc.

C/O: Mr. Ronald Bishop, Mr. Matthew Bishop Re: San Antonio VA; Area 4B

Date of Sampling: 07-22-2026 Date of Receipt: 07-23-2026 Date of Report: 07-28-2026

SPORE TRAP REPORT: NON-VIABLE METHODOLOGY

Location: 4220 1058:

Above Hall by B408 4220 1065:

Outside Comments (see below) B B

Lab ID-Version‡: 23374717-1 23374718-1

Analysis Date: 07/28/2026 07/28/2026 raw ct. % read spores/m3 raw ct. % read spores/m3 Alternaria 4 100 53 3 100 40 Ascospores 163 25 8,700 Basidiospores 4 25 210 109 25 5,800 Beltrania Bipolaris/Drechslera group 13 100 170 Cercospora Chaetomium Cladosporium 29 25 1,500 138 25 7,400 Curvularia Epicoccum 17 100 230 Ganoderma 5 100 67 Nigrospora 3 100 40 11 100 150 Other brown Penicillium/Aspergillus types† 2 25 110 Pithomyces Rusts Smuts, Periconia, Myxomycetes 2 100 27 Stachybotrys Stemphylium Torula 1 100 13 5 100 67 Ulocladium Background debris (1-4+) 2+ 3+ Hyphal fragments/m3 < 13 < 13 Pollen/m3 < 13 < 13 Skin cells (1-4+) 1+ 1+ Sample volume (liters) 75 75 § TOTAL SPORES/m3 2,000 23,000 Comments:B) Secondary data review is delayed.

EMLab ID: 4632505, Page 5 of 6Eurofins Built Environment Testing Central, LLC

Spore types listed without a count or data entry were not detected during the course of the analysis for the respective sample, indicating a raw count of <1 spore.

† The spores of Aspergillus and Penicillium (and others such as Acremonium, Paecilomyces) are small and round with very few distinguishing characteristics. They cannot be differentiated by non-viable sampling methods. Also, some species with very small spores are easily missed, and may be undercounted.

††Background debris indicates the amount of non-biological particulate matter present on the trace (dust in the air) and the resulting visibility for the analyst. It is rated from 1+ (low) to 4+ (high). Counts from areas with 4+ background debris should be regarded as minimal counts and may be higher than reported. It is important to account for samples volumes when evaluating dust levels.

The analytical sensitivity is the spores/m^3 divided by the raw count, expressed in spores/m^3, per spore and per sample.

For more information regarding analytical sensitivity, please contact QA by calling the laboratory.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

713-290-0223 www.eurofinsus.com/Built

Client: AEHS, Inc.

C/O: Mr. Ronald Bishop, Mr. Matthew Bishop Re: San Antonio VA; Area 4B

Date of Sampling: 07-22-2026 Date of Receipt: 07-23-2026 Date of Report: 07-28-2026

SPORE TRAP REPORT: NON-VIABLE METHODOLOGY

PROJECT ANALYSTS AND SIGNATORY REPORT

Project Analysts

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by AIHA LAP, LLC, or any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".

Analyst: Anthony Mallory Analyst: Andrea Tinoco

EMLab ID: 4632505, Page 6 of 6Eurofins Built Environment Testing Central, LLC

Approved by:

Business Unit Manager Scott Ward

Report for:

Mr. Ronald Bishop, Mr. Matthew Bishop AEHS, Inc.

4402 Centergate San Antonio, TX 78217

Regarding:

Eurofins Built Environment Testing Central, LLC Project: San Antonio VA; Area 4B

EML ID: 4632505

All samples were received in acceptable condition unless noted in the Report Comments portion in the body of the report. Due to the nature of the analyses performed, field blank correction of results is not applied. The results relate only to the samples as received and tested. Information supplied by the client which can affect the validity of results: sample area.

Eurofins Built Environment Testing Central, LLC ("the Company"), a member of the Eurofins Built Environment Testing group of companies, shall have no liability to the client or the client's customer with respect to decisions or recommendations made, actions taken or courses of conduct implemented by either the client or the client's customer as a result of or based upon the Test Results.

In no event shall the Company be liable to the client with respect to the Test Results except for the Company's own willful misconduct or gross negligence nor shall the Company be liable for incidental or consequential damages or lost profits or revenues to the fullest extent such liability may be disclaimed by law, even if the Company has been advised of the possibility of such damages, lost profits or lost revenues. In no event shall the Company's liability with respect to the Test Results exceed the amount paid to the Company by the client therefor.

Dates of Analysis:

Quantitative spore count direct exam: 07-28-2026

Service SOPs: Quantitative spore count direct exam (EBET-DE-SOP84096 (formerly EM-MY-S-1041))

EMLab ID: 4632505, Page 1 of 3Eurofins Built Environment Testing Central, LLC

713-290-0223 www.eurofinsus.com/Built

Client: AEHS, Inc.

C/O: Mr. Ronald Bishop, Mr. Matthew Bishop Re: San Antonio VA; Area 4B

Date of Sampling: 07-22-2026 Date of Receipt: 07-23-2026 Date of Report: 07-28-2026

QUANTITATIVE SPORE COUNT REPORT

Location: 1:

ceiling B429 Comments (see below) None Sample type Bulk sample Lab ID-Version‡: 23374710-1 Analysis Date: 07/28/2026 Background debris (1-4+) N/A Sample size 0.155 in2 Reporting unit 1 in2 Dilution 1:1

Count Count/sample Count/unit %

Hyphal fragments 5 1,300 8,100 n/a

§ TOTAL FUNGAL SPORES 150 37,000 240,000 100

Cladosporium 147 37,000 240,000 100 Myrothecium Nigrospora Other colorless Penicillium/Aspergillus types Pithomyces Rusts Smuts, Periconia, Myxomycetes Stachybotrys Stemphylium Torula Ulocladium Zygomycetes Comments:

EMLab ID: 4632505, Page 2 of 3Eurofins Built Environment Testing Central, LLC

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".

§ Total Fungal Spores has been rounded to two significant figures to reflect analytical precision.

Spore types listed without a count or data entry were not detected during the course of the analysis for the respective sample, indicating a raw count of <1 spore.

The limit of detection is 1 spore per area analyzed; Analytical Sensitivity is 1 spore per unit times the dilution factor.

Where tape lifts are performed for bulk sample analysis, the unit reported is specific to the area of tape analyzed. Where swabs are performed, the unit reported is specific to the swab analyzed.

Due to the inherent inhomogeneity and variable recovery rates of surface fungal samples, all reported spore counts are extrapolated estimates. Counts of fewer than 400 spores or greater than 40,000 spores are considered imprecise and not reproducible due to limitations in the counting method and equipment sensitivity.

All samples were received in acceptable condition unless noted in the Report Comments portion in the body of the report. Due to the nature of the analyses performed, field blank correction of results is not applied. The results relate only to the samples as received and tested.

713-290-0223 www.eurofinsus.com/Built

Client: AEHS, Inc.

C/O: Mr. Ronald Bishop, Mr. Matthew Bishop Re: San Antonio VA; Area 4B

Date of Sampling: 07-22-2026 Date of Receipt: 07-23-2026 Date of Report: 07-28-2026

QUANTITATIVE SPORE COUNT REPORT

PROJECT ANALYST AND SIGNATORY REPORT

Project Analyst

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by AIHA LAP, LLC, or any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".

Analyst: Gregorio Delgado

EMLab ID: 4632505, Page 3 of 3Eurofins Built Environment Testing Central, LLC