20750112 - ATTACHMENTS A THRU F Update 10-28-21.pdf

ATTACHMENT A

PROJECT LOCATION MAP

PROJECT LOCATION

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FOURTH STREET

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OCEAN DRIVE

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Revised - October 2018

NAVAL AIR STATION CORPUS CHRISTI TEXAS - WASTE SUMMARY SHEET

Name:

Project

Title: POC/Phone:

Number:

Delivery

Order:

Project

Location:

Activity*:

Date of

Project:

Start: End:

Landfill Incinerated **Recycled ***CompostedTypes of Wastes Tons Cost Tons Cost Tons Cost Revenue Tons Cost Revenue

Metals Glass Paper & Paperboard Plastic Wood Asbestos Yard/Green Waste Other Ethylene Glycol Antifreeze Lead-Acid Batteries Used Motor Oil Construction& Demolition General Refuse

*Recycling Facility used:_______________________ **Composting Facility used:______________________ *** Asbestos Disposal Facility:_____________________ **** Waste (Hazardous/Non-Hazardous) Disposal Facility:________________________

Contact Mike Stultz @ 361-961-3776 or michael.r.stultz@navy.mil for details.

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MOLD REMIDIATION

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BLDG. 10

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ATTACHMENT B

MOLD SPECIALISTS OF SOUTH TEXAS

8 Reserve Blvd, Corpus Christi, Texas-twogaines13@gmail.com-361-215-6117

Michael Gaines License #MAC1015 Expires 08/17/2024

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ATTACHMENT C

8 Reserve Blvd, Corpus Christi, Texas-twogaines13@gmail.com-361-215-6117

Michael Gaines License #MAC1015 Expires 08/17/2024

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PPaarrtt II………………….….Executive Summary

PPaarrtt IIII…………………..…Findings and Results

PPaarrtt IIIIII……………………Conclusions

PPaarrtt IIVV……………………Detailed Remediation Protocol

PPaarrtt VV…………………….Limitations of Mold Investigation

PPaarrtt VVII……………………Appendices

A. Description and Explanation of Inspection

B. Sampling Methods and Laboratory Analyses

C. General Remediation Procedures

D. Photographs and Floor Plan

August 17, 2021

Mr. Humberto Anthony Ortegon

Safety and Occupational Health Specialist

Defense Logistics Agency

Naval Air Station Corpus Christi

Corpus Christi, Texas

RE: Naval Air Station Corpus Christi

Building 10, DLA Space, Second Floor

Corpus Christi, Texas

Dear Mr. Ortegon:

As requested, Mold Specialists of South Texas performed a limited mold investigation of the above-mentioned structure. The investigation was performed on August 10, 2021, by Bee Schuck, a licensed

Mold Assessment Technician (TDLR License Number MAT1118).

A description of the investigation is outlined in Appendix A. This report serves as documentation of

Mold Specialists of South Texas’ findings; however, the full extent of possible mold growth vertically and horizontally, within wall cavities, ceilings, floors, and other inaccessible areas is not known at this time.

A qualified professional should identify and properly correct/repair all sources of excessive moisture or water intrusion into the structure. A qualified professional would include an individual with experience in building, construction, and/or a specific trade such as plumbing, roofing, HVAC, etc. If moisture and water sources are not properly controlled, additional mold growth will likely result.

I. EXECUTIVE SUMMARY

• Four (4) indoor airborne mold samples were collected on the north-east side of the second floor of

Building 10 and compared to one (1) outdoor air sample. Compared to the outdoor air sample collected, the indoor air samples collected are considered unacceptable. High levels of

Aspergillus/Penicillium were shown to be present in the samples.

• Visible mold was observed on the ceiling throughout the north-east side of the second floor

(approximately 16,000 SF). Four (4) swab samples were collected and these samples indicated the presence of Aspergillus/Penicillium.

I. FINDINGS AND RESULTS

The findings of Mold Specialists of South Texas’ visual inspection, as well as the results of direct-read instrumentation and sample analyses are summarized below.

Surface Sampling Results

Suspected visible mold growth was observed throughout the entire ceiling of the north-east side of the second-floor. Representative samples from suspected mold-affected areas were collected using the methods outlined in Appendix B and analyzed by a TDLR licensed laboratory, Pace Analytical, Mount

Juliet, Tennessee.

Surface Sampling Results

Location Photo

Number

Suspected

Water/Moisture

Source†

Sample

Number

Fungal

Identification

Areas of Suspected Mold

Ceiling above

B02470, 02A

NA

Temperature differentiation between floors 3 and 2; warmth and humidity in floor 2.

S-1 Phoma/coelomycetes

Heavy

Ceiling above

B02270, 04A

Temperature differentiation between floors 3 and 2; warmth and humidity in floor 2.

S-2 Penicillium/Aspergillus

Very light

Ceiling above

B02240; 04A

NA

Temperature differentiation between floors 3 and 2; warmth and humidity in floor 2.

S-3 None; Normal trappings

Surface of Container

Serial # ABW 20007;

located in B02130

NA

Temperature differentiation between floors 3 and 2; warmth and humidity in floor 2.

S-4

Penicillium/Aspergillus

Very light

Cladosporium

Very light

†Suspected water/moisture source is based solely on visual observation. A qualified professional should identify and properly correct/repair all sources of excessive moisture or water intrusion.

Mold levels are indicated as very light, light, moderate, heavy, very heavy.

Air Sample Results

The results of air sampling using Air-O-Cell™ cassettes are as follows:

Sample # Location Penicillium/Aspergillus

Fungal counts/ m3 Total fungal counts/ m3

3095 B02470; 02A 72 960

3104 B02280; 02A 120 1600

3098 B02240; 01A 150 2000

3105 B02060; 01A 102 1360

3083 Outside 11 147

The levels of total airborne Penicillium/Aspergillus present at the four air sampling sites within the second floor were higher than the outdoor levels. Since there are no acceptable federal, state, or local guidelines regarding mold, the comparison with reference samples is the most useful approach.

Reference samples are usually outdoor samples. In general, indoor mold concentrations should be similar to or lower than outdoor levels. No standards have been established for health effects or background limits. In accordance with current industry practices, which base initial assessments on comparisons with outside air samples, it is Mold Specialists of South Texas' opinion that the inside air results appear to be unacceptable.

CONCLUSIONS

Four (4) indoor airborne mold samples were collected in various locations within the second floor and compared to one (1) outdoor air sample. Compared to the outdoor air sample collected, the indoor air samples collected are considered unacceptable. High levels of Aspergillus/Penicillium were shown to be present in the samples.

Visible mold was observed throughout the second-floor ceiling. Swab samples collected from the ceilings above B02470 02A, B02270 04A and the top of a container located in B02130 all indicated the presence of Aspergillus/Penicillium.

A remediation protocol has been included in this report to properly remediate the mold growth and mold spore contamination. Only contractors with specific training in mold remediation techniques and equipment should perform mold remediation activities. Inadequately trained personnel can exacerbate the problem. In addition, contractors performing mold remediation for the public must be licensed by the

Texas Department of Licensing and Regulation.

Mold Specialists of South Texas also recognizes that ceiling and wall textures, ceiling tiles, joint tape and mud, linoleum, vinyl flooring, roof shingles and felt, and other building materials, may contain asbestos.

Testing of suspect asbestos-containing materials that may be disturbed during remediation is recommended.

Excessive moisture or sources of water apparently provided moisture for mold growth in the surrounding substrates. Prior to remedial activity, a qualified professional should identify and properly repair all water sources contributing to excessive moisture. If moisture and water sources are not properly controlled, mold growth will likely result.

IV. DETAILED REMEDIATION PROTOCOL

The following items are to be removed and/or remediated based on the initial assessment of the structure.

The full extent of mold growth, vertically and horizontally within the wall cavities, ceilings, floors, and other inaccessible areas is not known at this time. Testing and/or removal or remediation of additional building materials and contents may be necessary after the full extent of water and mold damage is exposed and methods of containment are in place.

Mold Specialists of South Texas recommend that items in the list below be removed/remediated following the general remediation guidelines found in Appendix C (unless otherwise indicated). These items include but are not limited to:

O Prior to remedial activity, a qualified professional should identify and properly correct/repair all sources of excessive moisture or water intrusion into the structure. A qualified professional would include an individual with experience in building, construction and/or a specific trade such as plumbing, roofing, HVAC, etc. If moisture and water sources are not properly controlled, additional mold growth will likely result.

O If suspect visible mold contamination is discovered to affect a total surface area of 25 contiguous square feet or more, proper notification to the TDLR is required.

O Clean the ceiling of Floor 2 and build a containment to isolate the floor of Floor 3 from the ceiling of

Floor 2. Condensation was visible on the ceiling of Floor 2 in areas B02170 02A; B02460 02A and 01A;

between B02770 and B0244C; between B02090 and B02260; and between B02070 and B02060.

Approximately 500 square feet of condensation was visible.

O The visible condensation on the ceiling of Floor 2 suggests the insulation between Floor 2 and Floor 3 is insufficient. A qualified professional should identify and properly correct this insufficiency or mold growth will continue.

O Clean all of the horizontal surfaces and containers present within Floor 2 as described in Appendix C.

O Inspect contents of crates for possible mold and water damage.

O Clean the flooring of Floor 2 with water accumulation as mold damaged. Water on the floor is considered mold infused; water was visible in areas B02470; between B02270 and B0244C; and between

B02060 01A and B02060 04A.

O Containment of the work area is recommended as described in Appendix C. This should include, at a minimum, 4-mil polyethylene sheeting from floor to ceiling, a decontamination chamber, the use of

HEPA filtered fan units to maintain negative pressure, and the use of dehumidifiers to maintain low relative humidity. Control of humidity is critical, the humidity on Floor 2 ranged from 69.0% to 74.4%.

O Personal protective equipment should include, at a minimum, gloves, full body disposable clothing, and a full-face respirator with a HEPA filter or half-face respirator with HEPA filter and goggles/eye protection.

O Visual observation, direct readings, and Air-O-Cell TM sampling will be used for post remediation testing. If no suspect visible mold is observed, and no wet building materials are identified, then the filtration and dehumidification equipment will be turned off and Air-O-Cell TM sampling conducted. If the level of fungal structures in the air inside the work area is lower than the outdoor level, then the containment area can be HEPA vacuumed, wet wiped, and polyethylene sheeting removed for proper disposal. The post remediation inspection will take place while walk-in containment is in place.

A drawing of the structure detailing areas of concern, and photographic documentation of these areas is found on the following pages.

V. LIMITATIONS OF THE MOLD INVESTIGATION

These preliminary visual inspections and laboratory analyses are designed as a first-tier study of the structure. The sampling performed is only accurate for the day and time of the actual sampling and the investigation. Additional studies may be needed to delineate the extent of mold contamination in the wall cavities and above ceilings, and the water/moisture sources within the structure. Mold Specialists of South Texas has written a remediation protocol based on a limited investigation of conditions existing at the time of the site investigation. The protocol was written to address the visible mold growth and allow the contractor to begin remediation.

Mold Specialists of South Texas' findings are based on visually accessible areas observed from floor level. Unless specifically mentioned in the report, no furniture was moved or invasive destructive testing performed at the structure. If destructive or invasive testing was performed, repair of any resulting damage is the responsibility of the owner or client.

All occupant health inquiries should be referred to a physician knowledgeable in the health effects of environmental mold exposures.

A qualified professional should be hired separately to identify and properly correct/repair all sources of excessive moisture or water intrusion into the structure. A qualified professional would include an individual with experience in building, construction and/or a specific trade such as plumbing, roofing, HVAC, etc. If moisture and water sources are not properly controlled, additional mold growth will likely result.

If you have any questions on this limited investigation, please call Mold Specialists of South

Texas. at (361) 215-6117.

Sincerely, Michael Gaines

Licensed Mold Assessment Consultant

TDLR License # MAC1015

Environmental Specialist

Mold Specialists of South Texas

VI. APPENDICES

APPENDIX A. DESCRIPTION AND EXPLANATION OF INSPECTION

History

The mold investigation of the structure includes a history of the structure as provided by the owner, occupant, adjuster, or contractor at the time of the investigation or at the time the job was assigned to Mold Specialists of South Texas. The history includes a summary of past and/or current water leaks or moisture problems, and any known areas of suspected visible mold, as reported by the owner, occupant, adjuster, or contractor.

Visual Inspection

Mold Specialists of South Texas’ mold investigation also includes a visual inspection of the structure for obvious visible signs of suspected mold growth and suspected water or moisture sources. The visual inspection consists of documentation of areas containing suspected visible mold, as well as, water-damaged areas. Mold Specialists of South Texas’ visual inspection is limited to visually accessible areas observed from floor level. Unless specifically mentioned in the report, no furniture was moved and no invasive/destructive testing was performed at the structure. If destructive or invasive testing is performed, repair of any resulting damage is the responsibility of the owner or client.

Direct-Read Instrumentation

Mold Specialists of South Texas may utilize direct-read instruments, including a digital hygrometer and moisture meter to measure indoor air quality parameters during an investigation.

Temperature and relative humidity readings are taken using a digital hygrometer and are documented inside the structure, as well as, outside for comparison and diagnostic purposes. A moisture meter may be utilized during the investigation to determine the moisture content in various building materials. This instrument may also be used to pinpoint locations of current water intrusion.

Laboratory Sampling

Mold Specialists of South Texas may collect several different types of laboratory samples from certain representative areas of suspected mold growth during the investigation. The laboratory samples collected by Mold Specialists of South Texas during the mold investigation are microscopically read for the presence of mold spores and/or other fungal structures. For additional information and a description of the sampling, refer to the provided appendix titled:

“Sampling Methods and Laboratory Analyses.”

Photographic Documentation

Areas of suspected visible mold growth may be photo documented during the mold investigation conducted by Mold Specialists of South Texas. Areas noted to have water damage and/or water staining may also be photo documented at the time of the investigation.

APPENDIX B. SAMPLING METHODS AND LABORATORY ANALYSES

General Information

Sampling techniques utilized during the investigation were performed according to recognized and accepted methods/procedures or industry practices. The following sampling techniques may have been employed during the investigation. Most sample collection materials are single-use items that are opened for use at the time of the investigation. Re-usable tools and equipment are cleaned and decontaminated with alcohol or a similar cleaning agent either between samples or after each investigation.

Bulk Samples

Bulk samples are collected by removing a portion of material suspected of containing visible mold growth. Bulk samples collected are placed into labeled sample bags until analyzed.

Tape Samples

Tape samples are collected by pressing a small piece of clear tape onto areas of suspected visible mold growth. The tape lifts are placed on microscope slides and stored in labeled sample bags or slide mailers until they are analyzed.

Swab Samples

Swab samples are collected by using sterile swabs to wipe areas of suspected visible mold growth. The sterile swabs are provided by the laboratory or supplier. The swab samples are then placed inside a labeled container until they are analyzed.

Air Samples

Air samples are collected utilizing Air-O-CellTM cassettes and a flow rate of 15 liters per minute

(lpm). The Air-O-CellTM cassettes are sent for direct exam analysis. The air sampling results are expressed as the number of fungal structures per cubic meter of air sampled (counts/m3) and do not differentiate between viable and nonviable mold spores. Sampling times may vary according to the manufacturer’s recommendations and conditions identified during the investigation. Since the results are usually a direct comparison of inside to outside, the flow rate is standardized during each investigation. The air sample is usually taken in the center of the room or space at a height of approximately four feet.

Viable Air Samples

Viable air samples are collected utilizing an Andersen sampler. A single stage Andersen sampler is employed to collect viable airborne fungi and bacteria aerosols by impaction onto petri dishes.

Andersen samplers measure viable particles per unit volume of air sampled expressed as colony forming units per cubic meter of air (cfu/m3). Air is drawn through the sampler, at a flow rate of

28.3 lpm. The plates are then incubated and analyzed.

Wall ChekTM

Wall ChekTM samples are collected utilizing Air-O-CellTM cassettes and a flow rate of 15 lpm.

This sampling technique is sometimes useful for sampling the air in the interstitial wall space of an interior wall or cavity between building materials. The sample analysis does not differentiate between viable and nonviable mold spores. Flow rates and sampling times during air sampling may vary according to the manufacturer’s recommendations and conditions identified during the investigation.

Laboratory Analyses

All samples are sent with a completed chain of custody form to a laboratory for analysis. For samples other than cultures, the laboratory performs a “direct exam” which involves a screen of the sampled material by light microscopy. This analytical method of fungal identification and enumeration conforms to manufacturer’s recommendations and standard laboratory procedures.

The direct exam is used in bulk, tape, swab and Air-O-CellTM samples and is a rapid analytical technique for confirming the presence and identity of mold structures on a surface or in the air.

The results are expressed as a range relative to the prevalence and concentration of mold structures in the sample.

The chain of custody and analytical report from the laboratory are attached.

APPENDIX C. GENERAL REMEDIATION PROCEDURES

Prior to remedial activity, a qualified professional should identify and properly correct/repair all sources of excessive moisture or water intrusion into the structure. A qualified professional would include an individual with experience in building, construction and/or a specific trade such as plumbing, roofing, HVAC, etc. If moisture and water sources are not properly controlled, additional mold growth will likely result.

The observations and suggestions provided in this document are basic industry standards and methods routinely utilized during mold remediation projects. This information is not provided or intended to direct the contractor’s work or to tell the contractor how to perform the work. It is presented as general information only and Mold Specialists of South Texas does not accept responsibility for the results of implementation.

Work Area

Mold Specialists of South Texas recommends establishing a work area perimeter separating and isolating the work area from other non-remediation areas. The work area where mold is present is to be isolated utilizing a minimum of 4-mil plastic sheeting. Negative pressure is to be provided to the enclosure with the use of negative air machines equipped with HEPA filtration.

The contractor is to remediate the building materials with visible mold growth and water damage and is responsible for determining the extent of the contamination. If it is determined that the extent of contamination exceeds the boundaries of the enclosure, then the enclosure is to be extended in order to encompass the entire contaminated area.

The HVAC system, if present, is to be turned off and isolated from the work area and contamination during remediation utilizing a minimum of 4-mil thick polyethylene sheeting. All supply and return ducts and plenums are to be covered and sealed with a minimum of two layers of 4-mil thick polyethylene sheeting.

Other areas of the structure shall be isolated from the work area in a manner to prevent contamination from spreading during remediation work.

Signs

Notice signs advising that a mold remediation is in progress are to be posted at all entrances leading to the remediation area(s) and in all occupied area(s) adjacent to the remediation area(s).

The signs shall comply with the Texas Mold Assessment and Remediation Rules (§295.322e) and be at least eight (8) inches by ten (10) inches with “NOTICE: Mold remediation project in progress” in black on a yellow background. The text must be legible from a distance of ten (10) feet.

Staging Area

A separate, uncontaminated area outside the work area is to be selected by the contractor as a temporary staging area for contents and items that have been cleaned. This staging area is to be

HEPA vacuumed and enclosed by erecting 4-mil thick polyethylene floors and walls. The temperature and humidity must be controlled in the temporary storage area in order to protect the contents. If no area of the structure is available as a staging area, then an off-site staging area will need to be utilized.

Biocides

Mold Specialists of South Texas does not recommend the use of a biocide during mold remediation. The purpose of mold remediation is to remove mold and clean areas of contamination, not just kill the mold. Therefore, the use of a biocide is not recommended in the mold remediation guidelines prepared by the Environmental Protection Agency (EPA) and the

Occupational Safety and Health Administration (OSHA). Biocides can be toxic. However, if the contractor and owner choose to use a biocide, follow manufacturer’s directions for mixing and use, adequately ventilate the work area, and provide additional personal protective equipment to protect against chemical exposure(s). In addition, a material safety data sheet

(MSDS) prepared by the manufacturer of the biocide should be provided to the owner or owner’s representative prior to use for approval. Do not use fungicides developed for use outdoors for mold remediation or any other indoor situation.

Some biocides are considered pesticides and proper licensing or registration(s) may apply.

Decontamination Unit (If full containment is specified)

Either a two-stage decontamination chamber with workers using a double suiting technique instead of showering, or a three-stage decontamination chamber with a temporary shower is to be attached to the work area. The decon chamber is to be used for the decontamination of non-porous goods, construction equipment, personnel, and safety equipment. The three-stage decontamination chamber is to consist of a clean room, a shower room, and an equipment room.

A two-stage decontamination chamber will utilize a clean room and a dirty room. Personnel and equipment enter and exit the work area through the decontamination unit. The decontamination area is to be constructed so that personnel entering the work area will proceed through the clean room first, shower area second, and equipment room third. Polyethylene sheeting or similar material may be used to construct air locks between the rooms to limit airflow and potential cross contamination.

Decontamination of Contents and On-site Storage

Contents Inside the Work Area

The contents are to be removed from the remediation area. Discard porous items with suspect visible mold/contamination and/or water damage that cannot be cleaned. Non-porous contents should be cleaned using a HEPA vacuum and when applicable, wet wiping. This procedure is to occur in a controlled area such as the equipment room of the decontamination chamber.

Alternately, the contents may be wrapped in plastic and packaged for transport to an off-site facility for cleaning and restoration. Contents being packed-out for transport may be cleaned prior to transport or after arrival at an off-site facility. After cleaning, contents should be repackaged to prevent mold growth/contamination and stored in an uncontaminated climate-controlled environment until after remediation.

Methods for removing spores from non-porous surfaces requires wet wiping utilizing a cleaning agent such as soapy water or equivalent.

Porous surfaces can be HEPA vacuumed, wet wiped or washed depending on the material if there is no visible mold growth. Porous materials with visible microbial growth that cannot be adequately cleaned must be disposed of according to the procedures described in the waste disposal portion of this work plan. Launder washable fabric items.

Non-washable clothing items without visible mold may be cleaned by a professional cleaning service specializing in methods to remove settled mold spores. Clothing items may be thoroughly HEPA vacuumed to remove settled spores followed by laundering or dry cleaning, as appropriate. Special cleaning procedures can be used to restore porous items of great sentimental value.

Food and personal products in sealed containers should have the outer container wet wiped or washed. Some types of shoes, leather, fur, and decorated items may be damaged by the cleaning process. Electronic equipment and items should be professionally cleaned.

Contents Outside the Work Area

During remediation, provide climate control such as dehumidification, temperature, and air filtration in areas where contents and household items remain or are stored in uncontaminated areas of the structure.

After the remediation in the work area and on the HVAC, system is completed, the portion of the building outside of the containment area shall be HEPA vacuumed. This includes HEPA vacuuming and/or wiping down of areas with visible settled dust and debris consistent with general housekeeping procedures.

Remediation in Work Area

Isolate Work Area: Isolate and enclose the work area as previously described.

Remove Contents: Remove, clean, and store contents and movable items as previously described.

Flooring: After isolating the area as previously described and removing the movable objects from the work area, HEPA vacuum the flooring inside the containment and clean the flooring material(s). If the floor covering is to be removed, after cleaning, remove it continuing to use dust suppression methods. Then HEPA vacuum and wet mop or wipe down the floor/sub-floor with a cleaning agent such as soapy water or equivalent. Allow the area to dry.

Remaining Walls and Floors: Walls and floors, which are not slated for removal, are to be covered with a minimum of one layer of polyethylene sheeting or as needed to prevent contamination.

Pollution and Humidity Control: Mold Specialists of South Texas recommends placing dehumidification equipment in the remediation work area to control moisture and HEPA filtered air-handling equipment to provide a negative pressure to the work area during gross removal. During the gross removal work, the HEPA filtered air handling equipment may be set up to where cleaner (possibly outside) air is drawn into the structure/containment and filtered air is exhausted from the work area. After the gross removal is completed, the HEPA filtered air handling equipment may be set to re-circulate and clean (scrub) the air inside the remediation area.

Gross Removal: After completing the items above, begin removal of contaminated building materials using appropriate dust suppression methods. During gross removal, porous building materials may be lightly wetted with water, or a similar dust suppression liquid may be used to suppress the airborne dust created during removal and control the dispersal of mold spores into the air. The use of large amounts of water or similar liquids should be avoided. Removal is to extend no less than two feet past the perimeters of visible mold growth and water damage. As a general suggestion, if visible mold is less than two feet from floor level, then the bottom four feet of the wall is to be removed. If visible mold is higher than two feet from floor level, then eight feet of the wall is to be removed. This will serve as a safety margin around the visibly contaminated perimeter. Use common sense in implementing the recommended safety margin, as it may not be possible or reasonable in all situations.

Wood: Structurally sound wood is to be cleaned utilizing the following procedures:

1) HEPA vacuum the wood;

2) Apply a cleaning agent such as detergent (or equivalent) and wire brush the wood;

3) Allow the wood to dry;

4) HEPA vacuum the wood;

5) Re-apply a cleaning agent such as detergent (or equivalent) and wire brush the wood;

6) Allow the wood to dry;

7) HEPA vacuum the wood.

The decision to remove or clean the wood must often be made during the remediation after accessing the materials for inspection. This decision should take into account moisture content of the wood, physical damage, and fungal contamination.

Other Considerations: Removal of building materials for cosmetic purposes may be required.

The contractor shall follow the client’s standard practice in this regard. For example, partial removal of walls covered with wallpaper may create cosmetic concerns. The contractor may be required to remove the entire wall.

HVAC System

If fungal air contamination or surface sampling confirms mold growth/contamination, cleaning and remediation of the HVAC system is recommended. Inspection, cleaning, and remediation of the HVAC system should be performed after the mold reservoirs have been removed.

Contaminated ductwork and system components shall be cleaned and/or replaced as described in the National Air Duct Cleaner's Association's (revised guidelines dated 2002), Mechanical

Cleaning of Non-Porous HVAC Systems, or another applicable standard. This standard requires the cleaning and/or replacement of all contaminated elements of the air conveyance system.

When performing “Biomedical Remediation” on HVAC systems in the state of Texas, contractors shall comply with the Air Conditioning and Refrigeration Administrative Rules.

This includes but is not limited to a licensing requirement.

Post Remediation Air and/or Tape Sampling of Work Area

After completion of the gross removal and final cleaning of mold-contaminated areas, interior walls/ceilings that were remediated should not be covered so as not to impair visual inspection.

Mold Specialists of South Texas recommends placing dehumidification equipment in the remediation area and the HEPA filtered air-handling equipment in a recycle mode for at least one

(1) day. Negative air pressure should be maintained during the air scrubbing unless the contractor determines it is not practical or reasonable to do so. Continue operation of the HEPA filtered air equipment until after visual inspection and post remediation sampling. If the visual inspection passes, then relative humidity measurements will be performed. If areas of wet building materials are identified, moisture readings may also be performed. If the visual inspection, relative humidity, and moisture are within acceptable limits, then the filtration and dehumidification equipment will be turned off during Air-O-CellTM and/or tape sampling.

If the visual inspection or humidity/moisture readings are not acceptable, steps must be taken to correct the deficiencies. Then the area must be re-cleaned, inspected, and tested.

Air-O-CellTM and/or tape sampling will be used for post remediation testing. Air-O-CellTM and/or tape sampling results are generally available within a few days.

At the conclusion of air sampling, dehumidifiers and HEPA filter air machines will be turned on and should be left in operation until analytical results confirm the remediation has been successfully completed.

Mold Specialists of South Texas recommends the building occupant have a physician of their choice review the acceptability of the results obtained from the post-remediation air sampling.

The levels may be too high for some individuals.

In most situations, if the level of fungal structures in the air inside the work area is lower than the outdoor level and/or the tape sample results show areas have been cleaned, then the containment area can be HEPA vacuumed, wet wiped, and polyethylene sheeting removed for proper disposal.

Worker Safety

Worker protection for all work shall be, at a minimum, half face air purifying respirators equipped with HEPA filters, full body disposable clothing, gloves, boots, and eye protection. If double suiting is utilized instead of a shower, then the contractor shall provide a clean area outside of the containment where the workers may wash their hands and face prior to leaving the site.

The contractor is responsible for following all applicable Federal, State and local requirements during the performance of the work.

Waste Disposal

To mitigate contamination during transport and disposal, the mold and mold spore-containing waste is to be double bagged in 6-mil polyethylene bags. Each bag is to be sealed. The exterior bag is to be HEPA vacuumed in the equipment room of the decon chamber prior to exiting the work area. Bags are transported to and disposed of in a landfill approved for the disposal of construction waste by the Texas Commission on Environmental Quality, formally known as

Texas Natural Resource Conservation Commission, of the State of Texas. Mold contamination on waste materials is not presently considered a regulated or special waste in the state of Texas.

This designation may change and the contractor is responsible for the proper packaging, temporary storage, transport, and disposal of the waste at the time of the project.

Other Considerations

Mold Specialists of South Texas recommends the use of a high efficiency particulate air (HEPA) filtered vacuum cleaner and disposal of any vacuums used that were not equipped with HEPA filtration.

APPENDIX D: PHOTOS AND FLOOR PLAN

Photo#1

Visible condensation on ceiling between columns F11 and G11.

Photo #2: Visible condensate on ceiling between columns A12 and A13.

Photo #3: Visible condensate above B02270; north east of lift.

Photo #4: Standing water in area B02060 01A.

ANALYTICAL REPORT

August 13 , 2021

Mold Specialists of South Texas

Sample Delivery Group: L1390099

Samples Received: 08/13/2021

Project Number: DEFENCE LOGISTICS

Site: 21-1002

Report To: Mr. Mike Gaines

8 Reserve Blvd

Corpus Christi, TX 78414

AIHA-LAP, LLC Cert.#: 100789

Entire Report Reviewed By:

August 13 , 2021

[Preliminary Report]

Darren Reeder Pro ject Manager

Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.

Pace Analytical National 12065 Lebanon Rd Mount Ju l ie t , TN 37122 615 -758-5858 800-767-5859 www.pacenat iona l . com

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August 13 , 2021

Darren Reeder Pro ject Manager

ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

Mold Specialists of South Texas DEFENCE LOGISTICS L1390099 08/13/21 16:20 1 of 8 https://www.pacenational.com mailto:twogaines13@gmail.com?subject=Pace Analytical National SDG: L1390099 - PN: DEFENCE LOGISTICS&body=Email regarding SDG: L1390099 - Project Number: DEFENCE LOGISTICS mailto:darren.reeder@pacelabs.com?subject=Pace Analytical National SDG: L1390099&body=Email regarding SDG: L1390099 https://www.pacenational.com mailto:darren.reeder@pacelabs.com?subject=Pace Analytical National SDG: L1390099&body=Email regarding SDG: L1390099

TABLE OF CONTENTS

Cp: Cover Page 1

Tc: Table of Contents 2

Ss: Sample Summary 3

Cn: Case Narrative 4

Sr: Sample Results 5

4163083 L1390099-01 5

Gl: Glossary of Terms 6

Al: Accreditations & Locations 7

Sc: Chain of Custody 8

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SAMPLE SUMMARY

Collected by Collected date/time Received date/time

4163083 L1390099-01 Mold Bee Schuck 08/10/21 14:30 08/13/21 08:45

Method Batch Preparation Analysis Analyst Location date/time date/time

Method ENV-SOP-MTJL-0235 WG1722776 08/13/21 15:36 08/13/21 15:36 TMP Mt. Juliet, TN

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CASE NARRATIVE

All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data.

[Preliminary Report]

Darren Reeder Pro jec t Manager

Project Narrat ive

Non-Viable (Spore Trap) Mold Quantification

Blank corrections have not been applied.

Background debris is an indication of amount of non-fungal biological particulate matter present on the sample and is characterized as very light, light, moderate, heavy or very heavy. Heavy background debris may reduce readability so that spore counts should be considered minimal.

The calculation is based on the air volume and percent of slide read.

Background Debris Rating

Very light < 5 %

Light 5 – 10 %

Moderate 10 – 25 %

Heavy 25 – 75 %

Very heavy 75 % +

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Darren Reeder Pro jec t Manager

ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

Mold Specialists of South Texas DEFENCE LOGISTICS L1390099 08/13/21 16:20 4 of 8 mailto:darren.reeder@pacelabs.com?subject=Pace Analytical National SDG: L1390099&body=Email regarding SDG: L1390099 mailto:darren.reeder@pacelabs.com?subject=Pace Analytical National SDG: L1390099&body=Email regarding SDG: L1390099

SAMPLE RESULTS - 01

L 1 3 9 0 0 9 9

4163083 C o l l e c t e d d a t e / t i m e : 0 8 / 1 0 / 2 1 1 4 : 3 0

Method ENV-SOP-MTJL-0235

Client ID Lab Sample ID Location Analyzed Raw Count Result Percent of Total AS Percent of Slide Read Qualifier date/time Analyte Spores/m3 % Spores/m3 %

4163083 L1390099-01 Outside 08/13/2021 15:36 Volume(liters) 75 - -

Background Debris* Moderate - -

Ascospores 3 40 5.08 13 100

Basidiospores 24 320 40.7 13 100

Bipolaris/Drechslera 2 27 3.43 13 100

Cladosporium 9 120 15.2 13 100

Fusarium 1 13 1.65 13 100

Nigrospora 8 107 13.6 13 100

Other Colorless 1 13 1.65 13 100

Penicillium/Aspergillus 11 147 18.7 13 100

Total 787

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GLOSSARY OF TERMS

Guide to Reading and Understanding Your Laboratory Report

The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative.

Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.

Abbreviations and Definitions

AS Analytical Sensitivity - The lowest concetration that can be detected by the method caclulated to reporting limits.

CFU Colony Forming Units.

SDG Sample Delivery Group.

Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported.

Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.

Result

The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte.

Uncertainty (Radiochemistry) Confidence level of 2 sigma.

Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.

Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported.

Sample Summary (Ss) This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.

Qualifier Description

The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG.

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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05

Alaska 17-026 Nevada TN000032021-1

Arizona AZ0612 New Hampshire 2975

Arkansas 88-0469 New Jersey–NELAP TN002

California 2932 New Mexico ¹ TN00003

Colorado TN00003 New York 11742

Connecticut PH-0197 North Carolina Env375

Florida E87487 North Carolina ¹ DW21704

Georgia NELAP North Carolina ³ 41

Georgia ¹ 923 North Dakota R-140

Idaho TN00003 Ohio–VAP CL0069

Illinois 200008 Oklahoma 9915

Indiana C-TN-01 Oregon TN200002

Iowa 364 Pennsylvania 68-02979

Kansas E-10277 Rhode Island LAO00356

Kentucky ¹ ⁶ KY90010 South Carolina 84004002

Kentucky ² 16 South Dakota n/a

Louisiana AI30792 Tennessee ¹ ⁴ 2006

Louisiana LA018 Texas T104704245-20-18

Maine TN00003 Texas ⁵ LAB0152

Maryland 324 Utah TN000032021-11

Massachusetts M-TN003 Vermont VT2006

Michigan 9958 Virginia 110033

Minnesota 047-999-395 Washington C847

Mississippi TN00003 West Virginia 233

Missouri 340 Wisconsin 998093910

Montana CERT0086 Wyoming A2LA

A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789

A2LA – ISO 17025 ⁵ 1461.02 DOD 1461.01

Canada 1461.01 USDA P330-15-00234

EPA–Crypto TN00003

ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable

* Not all certifications held by the laboratory are applicable to the results reported in the attached report.

* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.

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ANALYTICAL REPORT

August 1 1 , 2021

Mold Specialists of South Texas

Sample Delivery Group: L1388847

Samples Received: 08/11/2021

Project Number: DEFENCE LOGISTICS

Site: 21-1002

Report To: Mr. Mike Gaines

8 Reserve Blvd

Corpus Christi, TX 78414

AIHA-LAP, LLC Cert.#: 100789

Entire Report Reviewed By:

August 1 1 , 2021

[Preliminary Report]

Darren Reeder Pro ject Manager

Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.

Pace Analytical National 12065 Lebanon Rd Mount Ju l ie t , TN 37122 615 -758-5858 800-767-5859 www.pacenat iona l . com

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August 1 1 , 2021

Darren Reeder Pro ject Manager

ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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