224109 ADDENDUM #1.pdf

Florida Army National Guard Construction & Facility Management Office

ISSUED ADDENDUM

Rev. 11/2018

Date June 28, 2024

ADDENDUM Number 1

Project Number and Name 224109 – Wauchula Mold Remediation

Invitation to Bid Date June 12, 2024

Number of Attachments 2

Bid Opening Date and Time July 18, 2024 @ 2:00 p.m.

From: Department of Military Affairs, CFMO Contracting Office

This addendum and the listed attachments forms a part of the contract documents and modifies the original bidding documents. Acknowledgement of this addendum in Exhibit 4 - Bid Proposal form is required.

Concerns with this addendum should be addressed to:

ng.fl.flarng.list.cfmo-contracting@army.mil

Answers to Questions (Q) / Clarifications (C) / Modifications (M)

Q. Is the contractor required to clean any additional rooms sharing the same HVAC duct system in the bid?

A. No

Q. What year was the building constructed?

A. The building was constructed in 1995.

Q. Has a current asbestos test been performed? If so, can the results be proved to the contractor?

A. No, the building was built after the asbestos ban & the facility went through a major renovation in 2017. It is not applicable to prove results to the contractor.

Q. Has lead paint testing been performed? If so, can the results be proved to the contractor?

mailto:ng.fl.flarng.list.cfmo-contracting@army.mil

A. No, it is the assumption that the building does not contain any lead paint. The building was built after the Lead-Based Paint Poisoning Act & the facility had a major renovation in 2017. It is not applicable to prove results to the contractor.

Q. The contractor is required to show OSHA Mold and Mitigation Certification. Is the state and/or government requesting the OSHA HAZWOPER 40- Hour Course or a different certification?

A. No, no other certification is required.

Q. Do you have a copy of the “Mold Protocol” that details findings for each room?

A. See attached document.

Attachment List

1. Mold Assessment Report/Protocol

2. Mold Analysis

END OF ADDENDUM #1

Mold Assessment Report with Mold Remediation Protocol

Prepared for: Army National Guard / SERVPRO of Plant City

450 Rodeo Drive

Wauchula, FL 33873

Prepared By:

Chris Brill

Indoor Air Quality Solutions

18119 Longwater Run Drive

Tampa FL 33647

Phone: 813-777-1189 – Email: c_brill@iaqflpro.com

This report is the exclusive property of the inspection company and the client whose name appears herewith and its use by any unauthorized persons is prohibited.

mailto:c_brill@iaqflpro.com

Introduction

On 12/13/2023 Indoor Air Quality Solutions conducted a mold assessment. The purpose of this assessment was to inspect the water damage, and immediately surrounding areas for signs of mold growth. If mold growth is found, or hidden mold growth is suspected, more spore sampling is conducted, and a mold remediation protocol is provided. The purpose of the mold remediation protocol is to provide specific mold remediation steps to control and remove the mold growth present.

Indoor Air Quality Solutions was contacted by John Carter & Alexis Hall for independent investigation. The client is concerned about mold due tom roof leaks.

Air Sample – Various

An Air Quality Sample was collected to provide the greatest amount of data concerning exposure potential to occupants and to characterize the magnitude of airborne mold spores in the structure. The results are shown below.

Air Sample AOB233

Air Sample Hallway to right of

Entry

Air Sample Kitchen

Air Sample Main Entry

Air Sample Room 103

Air Sample Room 124 / VAC Supply

Air Sample Icemaker Room

Air Sample Wash-Clean Room

Air Sample – Outside -Control

An outdoor sample was collected. Because of the ambiguity concerning physiological response and airborne mold spore levels, Indoor Air

Quality Solutions compares the outdoor mold spore count to the indoor mold spore count and then formulates a conclusion based on experience, professional opinion, and available standards.

Outside Air Sample

Lab Results – Full Lab Report Attached in Separate

Document

Photographic Evidence

SWAB 1 collection kitchen just under ducting, about finished ceiling back wall.

SWAB 2 collection first layer of insulation above kitchen

SWAB 4 Office 104 drywall near water collection funnel

SWAB 3 Finish ceiling

Icemaker Room

Mold Spore Sampling Airborne Mold Spore Samples The purpose of the mold spore air sampling is to determine if the mold growth has impacted other area(s) of the building/structure and to also determine if there is an occupant hazard potential to humans or animals. Mold spores can be carried by air currents from the HVAC system, from occupant and/or pet movement, by opening and closing of the exterior doors and/or windows, etc.

SWAB 5 HVAC Vent

Room 124 – VAC Supply

At the ARMY National Guard residence there were nine non-viable mold spore air samples were collected inside the structure including one outdoor sample. The samples were collected in the various locations as listed in the Lab Report. These sample locations were chosen to collect samples that would provide the greatest amount of data concerning exposure potential to occupants and to characterize the magnitude of airborne mold spores in the structure (if any).

Air sampling for non-viable mold spores was conducted by using Zefon high-volume sampling pump; serial number B-17485. Non-viable spores were collected on Allergenco-D cassettes.

Surface Mold Spore Samples Swab sampling is conducted by rolling the swab lightly back and forth over the sampling are

“suspect” and/or mature mold growth. The swab is then immediately inserted into a tube, closed firmly, labeled and sent to an accredited laboratory for analysis. Tape lift sampling is conducted by pressing a prepared tape lift into the surface with “suspect” and/or mature mold growth. The tape lift is immediately applied to a clean microscope slide and sent to an accredited laboratory for analysis. Surface sampling is conducted to provide laboratory analysis to provide the existence of mold growth and to provide additional accreditation to the inspector’s findings. In addition, they can be used to aid in providing a timeline and/or identifying the mold spore colony. At the

Army National Guard property there were five swab samples collected. Swab sample came back positive see test report for specific results.

Summary and Recommendations From lab results air sampling came back with normal ecological levels. However, swab sample indicates abnormal condition in multiple areas. Complicating the inspection is roof has two separate insulation layers with the layer closest to roof being sealed with a vapor barrier which did not allow for easy inspection without destructive testing to materials. In addition, since the source of original moisture was roof leak the vapor barrier will tend to hold moisture in the insulation promoting microbial growth. The following protocol is advised to cost-effectively remediate the issues.

Break the remediation in to two separate methodologies:

1. Primary Remediation in all areas that have tested positive for growth. Details below.

2. Secondary Remediation/Inspection at all locations where roof leaks have been observed. Details below.

Recommendations

Based on these findings, Indoor Air Quality Solutions can offer the following recommendations:

Indoor Air Quality Solutions suggests the removal of damage materials & fugitive spores to a Florida Licensed Mold Remediation company to ensure that the mold damage building materials and personal property are removed/cleaned properly.

Proper mold remediation procedures must follow to ensure the mold is cleaned up entirely without contaminating the (non-affected areas) areas of the structures:

see pages (16 - 20) for the Mold Remediation Protocol (scope of the project to be used as a guideline during the mold remediation procedures).

Indoor Air Quality Solutions appreciates the opportunity to be of service to those involved in this project. Feel free to contact our office at 407-230-4397 if you have any questions.

Prepared by

Indoor Air Quality Solutions

Florida Licensed Mold Assessor MRSA2544

It is expected that the remediation contractor has experience in microbial remediation and therefore will be held to a professional standard with regard to complete removal of contaminated materials. If extensive additional remediation is required, the contractor should contact Indoor Air Quality Solutions and provide a description. Any further remediation should be accomplished in accordance with NYC Guidelines, EPA recommendations, and/or the IICRCS520 Standard.

Mold Remediation Protocol

Mold Remediation Preparation

The following procedures and preparations should be conducted prior to removal of any mold damage building materials:

Air Scrubber(s): - Place 5-8 air scrubbers inside the structure and turn it on. Later the air scrubber will be converted into a negative air machine.

Dehumidifier(s): Place 4-6 dehumidifier in the structure and turn it on. The dehumidifier shall remain on throughout the process of the remediation project.

• Contents: All contents in the containment shall be cleaned by a method based on material composition (see general remediation instructions). After cleaning, all items that were cleaned are to be removed and stored in a non-work area or in a remote storage location.

• Containments: Install a MERV8 filter in the plastic containment wall to keep the plastic containment barrier from collapsing inward due to the negative pressure inside the containment, if found to be necessary. All containment barriers shall be made of 6-mil plastic. All plastic edges shall be secured tightly with painter’s tape and staples, if necessary. Other methods include the use of furring strips to secure the plastic edges and or zip wall poles & foam railings.

• Cover / Seal w/ 6 Mil Plastic: AC registers, Returns, Drains, Doors, Windows, or any area place ambient air may enter the containment / structure this is to ensure the machines are not pulling any fugitive air from outside of containment. As that would be counterproductive to this remediation project.

Specific Remediation Instructions

(1) Roof – Have a licensed roofing contractor verify the roof is mechanical sound.

(2) Primary Remediation Areas – Kitchen, Icemaker Room, Kitchen Wash -Clean Room, Office 104, & Room 124 VAC-supply

a. Build containment with negative air pressure to isolate any demo of contaminated material.

b. Remove all porous items from affected area.

c. Remove any affected material such as insulation, dry sand & seal structural components. At a minimum

i. Kitchen/Icemaker Room/kitchen wash-clean room

1. Remove balance of ceiling

2. The drywall along the back wall starting with discoloration below ducts and proceed two feet past clean drywall.

3. From the back wall remove all layers of roof insulation starting with two feet in and continuing until clean dry insulation is found.

ii. Office 104

1. Remove two feet past affected drywall.

iii. Room 124 VAC-Supply

1. Remove two feet past affected drywall.

d. Apply antimicrobial.

e. Dry affected area

f. Perform three rounds of micro cleaning, using HEPA sandwich method.

(3) Secondary remediation Area / Inspection – Under All known roof leaks

a. Build containment with negative air pressure to isolate any demo of contaminated material.

b. Demo to roof removing all layers of insulation for a 2’x2’ area, if discoloration is found in any material remove to two feet past any visible discoloration.

c. Apply antimicrobial.

d. Dry affected area

e. Perform three rounds of micro cleaning, using HEPA sandwich method.

(4) HVAC and duct system should be clean & sanitized for entire facility.

(5) Follow all procedures & guidelines outlined in IICRCS520, even if not listed in above instructions.

(6) Contact Indoor Air Quality Solutions for a PRVI (813-777-1189)

General Remediation Instructions The following information is provided for the remediation contractor general use during the decontamination project and to provide the building/homeowner information on the scope of the project. These decontamination guidelines are for water damaged materials.

(1) Preliminary Activities

• Prior to initiating any micro-cleaning activities, A/C supply and return air vents that will be inside containment must be sealed off.

• Attach ground fault circuit interrupter (GFCI’S) to any electrical equipment that will be used.

(2) Contents Cleaning – All indicated contents should be cleaned or discarded in accordance with the ICRC S520 standard.

• All contents in the containment area should be cleaned by a method based on material composition and manufacture instructions. After cleaning, all items that were removed from the containment area should be stored in a non-work area or in a remote storage location.

• Contents should be separated into one of three categories – non-porous, semi-porous, and porous.

• All porous and semi-porous contents that were directly water damage and present active mold growth should be discarded.

• Non-porous items, in most circumstances, are restorable.

• Semi-porous and porous items are restorable if only general air contamination is present and/or the mold contamination is only settled spores.

• Do not dispose of any items without the consent of the financially obligated party and homeowner.

(3) Create regulated work area and arrange for containment of work area.

• Install the air filtration device (AFD), also known as air scrubber or negative air machine. Remediation can begin once the AFD is installed.

Maintain appropriate air pressure differential control to remove any contaminants that could be released during the removal and cleaning operations and to prevent cross contamination. Use and AFD to exhaust the work area continuously during the project. The AFD should be positioned at the furthest point and/ or downwind from the entrance. A sufficient number of AFD’s must be utilized in order to maintain 4-12 air exchanges per hour. Visually confirm that the negative air pressure is present at all times (use a manometer to monitor pressure). If negative pressure is lost, stop all remediation activities, and repair the leak.

• Install necessary environmental control equipment (portable A/C, dehumidifiers) in order to maintain a safe working atmosphere.

(4) Work Area Gross Contamination Remediation.

• All Identified impacted materials should be treated and/or removed.

The removal of contaminated material should extend two feet past the visible mold contamination.

• Cut out the impacted building materials in a controlled manner in order to reduce the level of dust and spread mold. Two-man teams should be employed, and HEPA vacuums should be used to control dust.

• Spraying or misting materials prior to removal is not recommended.

• Hidden Mold – During the remediation process, hidden mold may be discovered. Small areas of mold may be remediated. Large areas greater than three square feet should be reported to all parties concerned and proper procedures for removal should be agreed upon.

• The use of encapsulates sealants, ozone, and ultraviolet light as a substitute for source removal and detailed cleaning is generally not recommended.

• The exposed structures members, studs, sill plates, floors and beams should be HEPA vacuumed, treated with the cleaning solution, and

HEPA vacuumed again. Heavily impacted structure members that cannot be cleaned should be considered for replacement or sanded and HEPA vacuumed. All other remaining materials should get HEPA-clean-HEPA treatment. HEPA-clean-HEPA, it consists of using a high-efficiency particulate air (HEPA) vacuum to clean, then damp wiping or wet cleaning the items, and then implementing another round of HEPA vacuuming to remove any leftover contaminants.

• All discarded building materials and personal effects will be gooseneck sealed in a plastic bag. All bags leaving the containment must be HEPA vacuumed. There are no specific requirements for the disposal of moldy materials.

(5) Cleaning of non-porous and semi-porous materials.

• Non-contaminated drywall may be cleaned with a damp cloth and then HEPA vacuumed. Contaminated drywall will always be removed.

• Contaminated studs and beams may be cleaned using a damp cloth and an anti-microbial cleaning solution. Heavily contaminated wood building materials may require sanding and/or wire brushing. Any items not capable of being cleaned will be discarded and replaced.

• All contaminated particleboard should be discarded. Plywood should be evaluated based on the condition of the plywood.

• Concrete flooring can be cleaned with the HEPA-clean-HEPA method.

• Ceramic tile and linoleum may be cleaned using the HEPA-clean HEPA method.

• Concrete ceiling structures should be HEPA-sanded-HEPA cleaned. The paint should also be removed. After the contamination is removed, the ceiling should then be re cleaned using the HEPA-clean-HEPA method using an anti-microbial solution.

(6) Decontaminate the containment area after all mold amplification is removed.

• Thoroughly HEPA vacuum all surfaces within the containment area.

• Prepare the cleaning solution. MIST the surfaces of all areas that have been HEPA vacuumed and wipe clean.

• All horizontal and vertical surfaces will then be HEPA-vacuumed again.

• Remove all waste material from the work areas in 6 mil plastic bags and dispose of as normal solid waste.

• Thoroughly clean dehumidifiers and air scrubber devices with an anti-microbial agent.

Post Remediation Verification Inspection

(PRVI) Requirements.

In order to obtain a satisfactory PASS the following criteria must be met

Post-remediation verification inspections – (PRVI, clearance of the work area) should be conducted after the removal and clean-up, but prior to the reconstruction of the work area. PRVI testing will be based on accepted microbiological post remediation testing protocols.

Indoor Air Quality Solutions will be looking for an environment void of visual microbial growth, moisture, and an indoor environment that does not indicate unusual microbiological conditions with respect to species present and comparison with reference samples.

Clearance – Once a satisfactory post remediation verification inspection is achieved, Indoor Air Quality Solutions will certify that the work area is free of visible mold, the remediated surfaces are within acceptable criteria, and that the air sample results are within parameter. The PRVI report will give clearance for reconstruction of the work areas to begin and/or will give clearance for re-occupancy.

Occupancy During Remediation

The contained areas should not be occupied by anyone other than the Professional

Mold Remediation Company / Contractors during the remediation activities. Access into the contained areas is limited to mold remediation workers, trades escorted by remediation workers, or employees of the insurance and or management companies who have documented approval from the remediation company. No tenants should enter the containment/work area at any given time until the areas have been deemed safe and cleared by Indoor Air Quality Solutions.

Work Stoppages

• If any complexities arise during the remediation activities, work should be suspended, and all interested parties should be consulted. These parties may include Indoor Air Quality Solutions, Insurance Adjusters, or the

Homeowner. The financially obligated party must approve all change orders.

• All work stoppages should be documented in writing.

• The contracted Remediation Company must avoid situations that could result in illegal activity, injury, or adverse health consequences for workers or occupants. Such situations warrant a work stoppage.

• During work stoppage, environmental conditions in the work area must not be allowed to degrade. Dehumidification equipment must be maintained to prevent further mold amplification. If adjacent space is occupied, negative air must be maintained.

Health and Safety Measures The disturbance or dislocation of microbial-contaminated material and the disinfection of microbial-contaminated facilities may cause mold, spores, or other biological agents to be released into the building’s atmosphere, thereby creating a potential hazard to workers, and building occupants. Apprise all workers, supervisory personnel, subcontractors and consultants who will be at the job site of the seriousness of the hazard and of the proper work procedures that must be followed. It is anticipated that significant amounts of toxigenic fungi can be released by tis work activity if proper procedures are not followed. All cleaning and decontamination activities should follow the general guidelines listed below.

(1) Protection of the safety and health of remediation workers and building occupants is of paramount importance in mold remediation projects. Each employer must comply with safety and health regulations applicable to businesses that perform this work. Generally, these include, but are not limited to:

• OSHA General Duty Clause, 29 CFR 1910

• Emergency Action and Fire Prevention Plans, 29 CFR1926.20

• Personal Protective Equipment, 29 CFR 1926.25,1910.32

• Respiratory Protection, 29 CFR 1910. 134

• Asbestos, 29 CFR 1101, 1910.1001, EPA NESHAP at 40 CFR 61

• Lead, 29 CFR 1926.62, 1910.1025

• Heat Disorders and Health Effects, OSHA Technical Manual TED 1-

0.15A, Section 111, Chapter 4

• Hazard Communication Standard, 29 CFR 1910.1200

• Lockout/Tagout Procedures 29 CFR1910.147

• Scaffolds, 29 CFR 1926.450, 29 CFR 190.28

(2) In addition, the following safe work practices should be incorporated into mold remediation work practices. Procedure includes:

• Maximize the extraction of pollutants by high efficiency (HEPA) vacuums to remove cleaning residues.

• Ensures that all chemicals used for cleaning are registered for their intended use and applied properly.

• Minimize human exposure to pollutants by using non-toxic cleaning agents.

• Ventilating the areas where chemicals are being used as much as possible.

• Use properly diluted cleaning agents.

• No eating, drinking, or smoking in any potentially contaminated areas.

• Wear personal protective equipment appropriate to the hazards.

• Use protective coveralls whenever entering a contaminated area.

• Repair or replace any damaged protective equipment.

• Dispose of contaminated protective clothing prior to exiting a work area.

• Wear latex, chemically resistant, or vinyl surgical gloves while inside containment areas.

• Wear a second pair of work gloves over the surgical gloves to protect against personal injury.

• In the event a glove is damaged, discard the glove, wash your hands with soap and water, and inspect for injury.

• All workers involved in project set up activities should wear appropriate eye protection and safety shoes.

• All workers actively involve in removal of moldy building materials, surface cleaning, or decontamination activities should wear impervious gloves when skin/hand contact with active mold growth is likely and full-body protective (TYVEK or similar) disposable clothing at all times.

• Workers should wear N-95 respirators in contaminated areas and full-face respirators equipped with P-100 cartridges during remediation activities.

• All workers involved in applying chorine-based biocides or cleaning solutions shall wear full-face respirators equipped with P-100 pre-filters/cartridges and cartridges approved for use with chorine or acid gasses.

• Before exiting from the containment, all workers will HEPA vacuum their suits in the decontamination chamber.

• Respiratory protection must be disinfected according to manufacturer recommendations.

References

• EPA, Building Air Quality: A guide for building owners and facility managers.

• IICRC S520: Standard and Reference Guide for Professional Mold

Remediation.

• IICRC S500: Standard and Reference Guide for Professional Water Damage

Restoration.

• American Council for Accredited Certification, Code of Conduct

(www.acac.org)

Limitations The findings and recommendations included represent conditions evident at the time of the assessment. Building conditions related to indoor air quality, microbial growth, and moister intrusion may be subject to change on a daily basis, particularly after catastrophic events.

Therefore, the conditions observed and reported herein may not be evident in the future. If additional information becomes available which may affect Indoor Air Quality Solutions’ findings and recommendations, we request the opportunity to evaluate the information and modify our findings and recommendations as appropriate.

Indoor Air Quality Solutions assumes no liability for existing conditions or damage within the structure or for any consequential effects that may result from our services and collection of field samples. Mold spore growth or moister may exist in areas within the structure that were not accessible or not explored as part of the requested evaluation.

Indoor Air Quality Solutions assumes no liability for any perceived or documented health effects of the occupants, visitors, contactors, or any other individual that has or may come in contact with the structure that may be attributed to the microbial conditions present in the structure.

The Center for Disease Control and Prevention recommends that individuals who believe that they are ill because of exposure to mold in a building consult a physician. Nothing in this report should be construed as medical advice.

Indoor Air Quality Solutions has endeavored to meet what it believes is applicable standard of care ordinarily exercised by others in conducting this assessment. No other warranty, express or implied, is made regarding the information contained in this report.

This report has been prepared for the sole and exclusive use of the client subject to previously agreed-upon terms and conditions. This report may not be suitable for the needs of others. Therefore, any reliance by other parties on the contents of this report is not granted and any such reliance shall be at the sole risk of the user.

Prepared For: TEST ADDRESS:

APPROVED BY:

John D. Shane PhD Laboratory Manager

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PREPARED FOR:

C E R T I F I C A T E O F M O L D A N A L Y S I S

Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Indoor Air Quality Solutions

Phone Number: (813) 777-1189

Email: c_brill@iaqflpro.com

Test Location:

Army National Guard/ SERVPRO of Plant City

450 Rodeo Drive

Wachula, FL 33873 Chain of Custody # 52766334

Collected: Wed December 13, 2023

Received: Fri December 15, 2023

Reported: Fri December 15, 2023

Version: 1.0 (a version number greater than one (1) indicates that the data in this report has been amended)

3 3 0 1 N .W. 5 5 t h S t. , F t. L a u d e r d a l e , F L 3 3 3 0 9 8 8 8 - 8 5 4 - 0 4 7 7

Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Detailed Mold Report (WATER-INDICATING FUNGI, IF PRESENT, ARE SHOWN BELOW IN RED)

Analysis Method Air Analysis Air Analysis Air Analysis Air Analysis

Lab Sample # 52766334-1 52766334-2 52766334-3 52766334-4

Sample Identification 17249717 17249972 17249819 17249751

Sample Location KITCHEN ICEMAKER ROOM KITCHEN WASH/ CLEAN

ROOM ROOM 103

Sample Type / Metric Breeze ST/150L Breeze ST/150L Breeze ST/150L Breeze ST/150L

Analysis Date Fri December 15, 2023 Fri December 15, 2023 Fri December 15, 2023 Fri December 15, 2023

Determination NORMAL NORMAL NORMAL NORMAL

Fungal Types Identified Raw Count

Spores / m3

% of Total

Raw Count

Spores / m3

% of Total

Raw Count

Spores / m3

% of Total

Raw Count

Spores / m3

% of Total

✷✷Non-Problem Fungi

Ascospores 8 54 9 7 47 7 1 7 2 --- --- ---

Basidiospores 19 127 21 19 127 19 4 27 8 3 20 17

Bipolaris/Drechslera --- --- --- 1 7 1 --- --- --- --- --- ---

Chaetomium --- --- --- --- --- --- 1 7 2 --- --- ---

Cladosporium 50 335 56 29 194 29 23 154 50 13 87 76

Curvularia --- --- --- 2 13 2 2 13 4 --- --- ---

Epicoccum --- --- --- --- --- --- --- --- --- 1 7 6

Nigrospora 3 20 3 --- --- --- --- --- --- --- --- ---

Penicillium/Aspergillus 3 20 3 1 7 1 6 40 13 --- --- ---

Pestalotia(opsis) --- --- --- 1 7 1 --- --- --- --- --- ---

Pithomyces --- --- --- --- --- --- 1 7 2 --- --- ---

Smut/Myxomycetes 3 20 3 17 114 17 5 34 11 --- --- ---

Stachybotrys --- --- --- --- --- --- 2 13 4 --- --- ---

Trichoderma --- --- --- 20 134 20 --- --- --- --- --- ---

Unclassified Pigmented Spores 3 20 3 --- --- --- --- --- --- --- --- ---

Total Spore Count# 89 600 100 97 650 100 45 300 100 17 110 100

Minimum Detection Limit 7 7 7 7

Comments/Definitions Raw Count: Actual number of spores observed and counted.

Spores/m3: Spores per cubic meter.

% of Total: Percentage of a particular spore in relation to total number of spores.

Present = growth observed.

---: Spore type was not observed.

✷ : Indicates to look above at the names in red under "indoor problem fungi".

Mold counts are within a NORMAL RANGE and there is no indication, based on the mold counts, that there is any exposure concern to the occupants. The LIGHT DEBRIS present in the sample likely had no effect on the accuracy of the mold count.

Mold counts are within a NORMAL RANGE and there is no indication, based on the mold counts, that there is any exposure concern to the occupants. The LIGHT DEBRIS present in the sample likely had no effect on the accuracy of the mold count.

Mold counts are within a NORMAL RANGE and there is no indication, based on the mold counts, that there is any exposure concern to the occupants. The LIGHT DEBRIS present in the sample likely had no effect on the accuracy of the mold count.

Mold counts are within a NORMAL RANGE and there is no indication, based on the mold counts, that there is any exposure concern to the occupants. The LIGHT DEBRIS present in the sample likely had no effect on the accuracy of the mold count.

** Non-Problem Fungi are less capable or do not grow on wetted building materials. They are commonly found in the air outside and infiltrate into indoor air naturally. High numbers of any one of these spore types as compared to the Control sample may indicate that they are growing on wetted building materials indoors.

Spore types not listed in this report were not observed.

Background debris estimates the amount of non-spore particles. Increasing amount of debris will affect the accuracy of the spore counts. Total percent may not equal 100% due to rounding.

#Total Spore Counts are reported to 2 significant figures.

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Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Detailed Mold Report (WATER-INDICATING FUNGI, IF PRESENT, ARE SHOWN BELOW IN RED)

Analysis Method Air Analysis Air Analysis Air Analysis Air Analysis

Lab Sample # 52766334-5 52766334-6 52766334-7 52766334-8

Sample Identification 17250074 17249428 17249836 17249700

Sample Location HALL RIGHT OF

ENTRANCE ENTRANCE HALL ROOM 124 -VAC SUPPLY AOB2330

Sample Type / Metric Breeze ST/150L Breeze ST/150L Breeze ST/150L Breeze ST/150L

Analysis Date Fri December 15, 2023 Fri December 15, 2023 Fri December 15, 2023 Fri December 15, 2023

Determination NORMAL NORMAL NORMAL NORMAL

Fungal Types Identified Raw Count

Spores / m3

% of Total

Raw Count

Spores / m3

% of Total

Raw Count

Spores / m3

% of Total

Raw Count

Spores / m3

% of Total

✷✷Non-Problem Fungi

Alternaria --- --- --- --- --- --- --- --- --- 2 13 3

Ascospores 4 27 6 9 60 8 2 13 6 1 7 1

Basidiospores 7 47 10 22 147 21 3 20 9 5 34 8

Chaetomium 1 7 1 --- --- --- --- --- --- --- --- ---

Cladosporium 39 261 59 48 322 47 7 47 22 12 80 19

Curvularia 1 7 1 3 20 2 --- --- --- 5 34 8

Myrothecium --- --- --- --- --- --- 1 7 3 --- --- ---

Nigrospora --- --- --- --- --- --- 1 7 3 1 7 1

Penicillium/Aspergillus 7 47 10 4 27 3 10 67 32 28 188 45

Pithomyces --- --- --- 1 7 1 1 7 3 2 13 3

Rusts --- --- --- --- --- --- 1 7 3 --- --- ---

Smut/Myxomycetes 4 27 6 10 67 9 3 20 9 4 27 6

Spegazzinia --- --- --- 1 7 1 --- --- --- --- --- ---

Sporidesmium 1 7 1 --- --- --- --- --- --- --- --- ---

Tetraploa --- --- --- 1 7 1 1 7 3 --- --- ---

Ulocladium --- --- --- --- --- --- 1 7 3 --- --- ---

Unclassified Colorless Spores 1 7 1 --- --- --- --- --- --- --- --- ---

Unclassified Pigmented Spores --- --- --- 2 13 1 --- --- --- 2 13 3

Total Spore Count# 65 440 100 100 680 100 31 210 100 62 420 100

Minimum Detection Limit 7 7 7 7

Comments/Definitions Raw Count: Actual number of spores observed and counted.

Spores/m3: Spores per cubic meter.

% of Total: Percentage of a particular spore in relation to total number of spores.

Present = growth observed.

---: Spore type was not observed.

✷ : Indicates to look above at the names in red under "indoor problem fungi".

Mold counts are within a NORMAL RANGE and there is no indication, based on the mold counts, that there is any exposure concern to the occupants. The LIGHT DEBRIS present in the sample likely had no effect on the accuracy of the mold count.

Mold counts are within a NORMAL RANGE and there is no indication, based on the mold counts, that there is any exposure concern to the occupants. The LIGHT DEBRIS present in the sample likely had no effect on the accuracy of the mold count.

Mold counts are within a NORMAL RANGE and there is no indication, based on the mold counts, that there is any exposure concern to the occupants. The LIGHT DEBRIS present in the sample likely had no effect on the accuracy of the mold count.

Mold counts are within a NORMAL RANGE and there is no indication, based on the mold counts, that there is any exposure concern to the occupants. The LIGHT DEBRIS present in the sample likely had no effect on the accuracy of the mold count.

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Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Detailed Mold Report (WATER-INDICATING FUNGI, IF PRESENT, ARE SHOWN BELOW IN RED)

Analysis Method Air Analysis Surface Analysis Surface Analysis Surface Analysis

Lab Sample # 52766334-9 52766334-10 52766334-11 52766334-12

Sample Identification 17250057 SWAB 1 SWAB 2 SWAB 3

Sample Location OUTSIDE

DRYWALL BACK

KITCHEN WALL ABOVE

DROP CEILING JUST

BELOW ROOF

ROOF INSULATION

ABOVE KITCHEN

ICEMAKER ROOM

CEILING DRYWALL

Sample Type / Metric Breeze ST/150L Swab Swab Swab

Analysis Date Fri December 15, 2023 Fri December 15, 2023 Fri December 15, 2023 Fri December 15, 2023

Determination CONTROL GROWTH NO GROWTH GROWTH

Fungal Types Identified Raw Count

Spores / m3

% of Total

Mold Present

Mold Present

Mold Present

✷INDOOR PROBLEM FUNGI

Chaetomium --- --- --- Present --- Present

Hyphae --- --- --- Present --- Present

Penicillium/Aspergillus --- --- --- Present --- Present

Stachybotrys --- --- --- Present --- ---

✷✷Non-Problem Fungi

Alternaria 3 20 1 --- --- ---

Ascospores 20 134 12 --- --- ---

Basidiospores 18 121 11 --- --- ---

Bipolaris/Drechslera 2 13 1 --- --- ---

Chaetomium 4 27 2 ✷ --- ✷

Cladosporium 63 422 40 --- --- ---

Curvularia 10 67 6 --- --- ---

Epicoccum 2 13 1 --- --- ---

Nigrospora 3 20 1 --- --- ---

Penicillium/Aspergillus 8 54 5 ✷ --- ✷

Pestalotia(opsis) 2 13 1 --- --- ---

Pithomyces 1 7 <1 --- --- ---

Smut/Myxomycetes 13 87 8 --- --- ---

Stachybotrys 1 7 <1 ✷ --- ---

Tetraploa 1 7 <1 --- --- ---

Unclassified Pigmented Spores 5 34 3 --- --- ---

Total Spore Count# 160 1,000 100 NA NA NA

Minimum Detection Limit 7 1 1 1

Comments/Definitions Raw Count: Actual number of spores observed and counted.

Spores/m3: Spores per cubic meter.

% of Total: Percentage of a particular spore in relation to total number of spores.

Present = growth observed.

---: Spore type was not observed.

✷ : Indicates to look above at the names in red under "indoor problem fungi".

Control samples are normally taken outside a building to provide a baseline from which samples on the interior of the building are compared. Outside air is considered normal whatever the mold counts may

be. HEAVY DEBRIS: The debris present in the sample likely had a large effect on the accuracy of the mold count.

Presence of current or former MOLD GROWTH observed.

EXPOSURE TO SPORES

LIKELY and will continue if the growth is not removed. An active or intermittent water source will cause the mold to continue to grow if the water source is not eliminated.

NO GROWTH or former mold growth observed. SOME SETTLED SPORES on surfaces, in carpets, etc. are normal.

SETTLED SPORES are below the reporting limit for the laboratory. This means that the presence of settled spores do not affect the determination.

Surfaces will not grow mold as long as they do not get wet for longer than 24 to 48 hours.

Presence of current or former MOLD GROWTH observed.

EXPOSURE TO SPORES

LIKELY and will continue if the growth is not removed. An active or intermittent water source will cause the mold to continue to grow if the water source is not eliminated.

* Indoor Problem Fungi are generally capable of growing on wetted building materials.

** Non-Problem Fungi are less capable or do not grow on wetted building materials. They are commonly found in the air outside and infiltrate into indoor air naturally. High numbers of any one of these spore types as compared to the Control sample may indicate that they are growing on wetted building materials indoors.

Spore types not listed in this report were not observed.

Background debris estimates the amount of non-spore particles. Increasing amount of debris will affect the accuracy of the spore counts. Total percent may not equal 100% due to rounding.

#Total Spore Counts are reported to 2 significant figures.

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Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Detailed Mold Report (WATER-INDICATING FUNGI, IF PRESENT, ARE SHOWN BELOW IN RED)

Analysis Method Surface Analysis Surface Analysis Intentionally Blank Intentionally Blank

Lab Sample # 52766334-13 52766334-14

Sample Identification 14736496 14748107

Sample Location OFFICE 104 DRYWALL ROOM 124 VAC SUPPLY

HVAC VENT

Sample Type / Metric Swab Swab

Analysis Date Fri December 15, 2023 Fri December 15, 2023

Determination GROWTH GROWTH

Fungal Types Identified Mold Present

Mold Present

Chaetomium --- Present

Cladosporium Present ---

Curvularia --- Present

Hyphae Present Present

Penicillium/Aspergillus Present Present

Stachybotrys Present Present

Total Spore Count# NA NA

Minimum Detection Limit 1 1

Comments/Definitions Raw Count: Actual number of spores observed and counted.

Spores/m3: Spores per cubic meter.

% of Total: Percentage of a particular spore in relation to total number of spores.

Present = growth observed.

---: Spore type was not observed.

✷ : Indicates to look above at the names in red under "indoor problem fungi".

Presence of current or former MOLD GROWTH observed.

EXPOSURE TO SPORES

LIKELY and will continue if the growth is not removed. An active or intermittent water source will cause the mold to continue to grow if the water source is not eliminated.

Presence of current or former MOLD GROWTH observed.

EXPOSURE TO SPORES

LIKELY and will continue if the growth is not removed. An active or intermittent water source will cause the mold to continue to grow if the water source is not eliminated.

INTENTIONALLY BLANK INTENTIONALLY BLANK

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Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Introduction All spores found in indoor air are also normally found in outdoor air because most originate or live in the soil and on dead or decaying plants. Therefore, it is not unusual to find mold spores in indoor air. This Mold Glossary is only intended to provide general information about the mold found in the samples that were provided to the laboratory.

Alternaria Outdoor Habitat: One of the most commonly observed spores in the outdoor air worldwide, normally in low numbers.

Indoor Habitat: Capable of growing on a wide variety of substrates and manufactured products found indoors when wetted.

Allergy Potential: Type I (hay fever, asthma), Type III (hypersensitivity pneumonitis), Common cause of extrinsic asthma Disease Potential: Not normally considered a pathogen, but can become so in immunocompromised persons.

Toxin Potential: Several known

Comments: One of the most common and potent allergens in the indoor and outdoor air.

Seen in indoor air in low concentrations, probably as a result of outdoor air infiltration and/or recycling of settled dust. However, it is frequently found growing on indoor substrates.

Ascospores Outdoor Habitat: Soil and decaying vegetation, dead and dying insects. These spores constitute a large part of the spores in the air and can be found in the air in very large numbers in the spring and summer, especially during and up to three (3) days after a rain.

Indoor Habitat: Very few of fungi that produce ascospores grow indoors. Some fungi that produce ascospores are recognizable by their spores and when observed are listed under their own categories. Wetted wood and gypsum wallboard paper

Allergy Potential: Depends on the type of fungus producing the ascospores.

Disease Potential: Not normally pathogenic as a group

Toxin Potential: None known Comments: Ascospores are produced from a very large group of fungi. Notable ascospores that are considered problematic for indoor environments are Chaetomium, Peziza, and Ascotricha. If these types of ascspores are observed they will be listed in the report under their own names.

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Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Basidiospores Outdoor Habitat: These are mushroom spores and are common everywhere outside, especially in the late summer and fall.

Indoor Habitat: Sometimes mushrooms can be observed growing in potted plants indoors.

Allergy Potential: Rarely reported, but some Type I (hay fever, asthma) and Type III (hypersensitivity pneumonitis) has been reported.

Disease Potential: None known Toxin Potential: None known

Comments: Mushroom spores are commonly found indoors, especially when the outdoor spore count is high. When spores of this group are derived from wood rotting fungi, including dry rot (Serpula and Poria), they can be especially destructive to buildings. When spores from destructive types of mushrooms (dry and wet rot group) are observed in the sample they are listed under their own names on the report.

Bipolaris/Drechslera Outdoor Habitat: Commonly observed spores in the outdoor air worldwide, normally in low numbers.

Indoor Habitat: Wetted wood and gypsum wallboard paper

Allergy Potential: Type I (hay fever, asthma) Disease Potential: Opportunistic pathogen in immunocompromised persons, not normally a pathogen in healthy individuals.

Toxin Potential: None known

Comments: This category represents at least three genera, including Bipolaris, Drechslera, and Exserohilum. This group cannot be consistently separated by spore morphology alone.

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Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Chaetomium Outdoor Habitat: Commonly found on paper products, cotton products, soil, decaying vegetation, wood and natural fiber textiles (such as jute-backed carpets, canvas, etc.) and similar materials. They are rarely identified in outdoor air. These spores can be disseminated by insects, wind and water splash, etc. It is also known as a soft-rot fungus for softwood and hardwood timber.

Indoor Habitat: Chaetomium is often found on a variety of substrates containing cellulose that are chronically wetted, including paper documents, wallpaper, textiles and construction materials like gypsum board (paper-coated sheet rock) and wood.

Chaetomium can develop quickly, covering a surface with substantial growth after two weeks.

Chaetomium globosum is the most commonly found species of Chaetomium indoors. It is not that unusual to find the occasional Chaetomium spore in the air indoors.

Allergy Potential: Type I (hay fever, asthma) potential. However, no allergens have yet been characterised. However, at least two potential allergens have been isolated.

Disease Potential: Rarely reported as human pathogen.

Toxin Potential: Several known

Comments: Chaetomium spores are easily disseminated when it becomes dry. However, Chaetomium spores do not remain airborne for long unless disturbed.

This genus is often associated with termite damaged and rotting wood. These spores will continue to be found in the air until this damaged wood is removed.

High numbers of spores of this genus is not normal for indoor environments and indicate a current or former water problem. Furthermore, since the spores are held together by mucilage and trapped by hairs, few become airborne until the mold has completely dried out or is mechanically disturbed during renovations remediation. It is, therefore, not uncommon to find low Chaetomium spore counts in pre-remediation air samples and relatively higher counts in post-remediation samples.

Chaetomium species colonize surfaces under similar conditions as Stachybotrys, Alternaria, Fusarium and Ulocladium.

HIGH CONCENTRATIONS AND LONG EXPOSURES TO CHAETOMIUM

SHOULD BE AVOIDED.

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Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Cladosporium Outdoor Habitat: Cladosporium is one of the most common environmental fungi observed worldwide and is widely reported from soil and decaying vegetation.

Cladosporium herbarum and C. cladosporioides are among the most frequently encountered species, both in outdoor and indoor environments.

Indoor Habitat: Wetted wood and gypsum wallboard paper, paper products, textiles, rubber, window sills. Cladosporium has the ability to grow at low temperatures and can thus, grow on rubber gaskets and food in refrigerators.

Allergy Potential: Type I (hay fever, asthma) - an important and common outdoor allergen Disease Potential: Opportunistic pathogen in immunocompromised persons, not normally a pathogen in healthy individuals. Cladosporium are some of the most common species reported as indoor contaminants, occasionally linked to health problems.

Toxin Potential: Cladosporium has two known toxins (cladosporin and emodin). These toxins are not known to be highly toxic. There is no evidence in the literature of toxic effects associated to inhalation of Cladosporium conidia (spores) indoors.

Comments: The most commonly reported spore in the outdoor air worldwide. This makes Cladosporium one of the most commonly reported and abundant spore types both indoors and outdoors. The prevalence of this spore can vary throughout the year, but is especially high in late summer and autumn, especially where cereal crops are commonly planted.

An important and common allergen source.

Curvularia Outdoor Habitat: Soil and decaying vegetation

Indoor Habitat: Wetted wood and gypsum wallboard paper, many cellulytic substrates Allergy Potential: Type I (hay fever, asthma), common cause of allergenic rhinitis Disease Potential: Potential human pathogen in immunocompromised people

Toxin Potential: None known Comments: None

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Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Epicoccum Outdoor Habitat: Epicoccum is a widespread cosmopolitan that grows on dead or decaying organic matter, wood, textiles, paper, a variety of foods, insects and human skin. It is commonly found in the soil. Epicoccum spores are more prevalent on dry, windy days, with higher counts late in the day.

Indoor Habitat: Capable of growing on a wide variety of substrates and manufactured products found indoors when wetted such as gypsum board, floors, carpets, mattress dust, and house plants.

Allergy Potential: Type I (hay fever, asthma) Disease Potential: None known

Toxin Potential: None known Comments: Very common in outdoor air in the summer months, especially in the midwest

USA during harvest times.

Hyphae Outdoor Habitat: Any cellulose-based substance that fungi can inhabit.

Indoor Habitat: Wetted wood and gypsum wallboard paper, etc.

Allergy Potential: Known to be allergenic.

Disease Potential: None known

Toxin Potential: None known Comments: "Root-like" structures of fungal growth that can become airborne and can possibly be allergenic.

When hyphae are found growing on a surface and associated with fruiting bodies and/or fungal spores, they indicate that growth has taken. Sometimes hyphae grow and do not produce spores. Hyphae are generally not specific to any particular type of fungus or mold type.

A mass of hyphae on a surface is indicative of mold growth.

Myrothecium Outdoor Habitat: Soil and decaying vegetation

Indoor Habitat: Wetted wood and gypsum wallboard paper Allergy Potential: Unknown Disease Potential: None known

Toxin Potential:

Comments: Spores can be dispersed into the air when old and dry.

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Indoor Air Quality Solutions 450 Rodeo Drive Wachula, FL 33873

Nigrospora Outdoor Habitat: Soil and decaying vegetation

Indoor Habitat: Can grow on wetted wood and gypsum wallboard paper Allergy Potential: Type I (hay fever, asthma) Disease Potential: None known

Toxin Potential: None known Comments: Rarely observed growing indoors, but is often found in the indoor air in small amounts because this spore type is frequently found in outdoor air.

Penicillium/Aspergillus Outdoor Habitat: Soil and decaying vegetation, textiles, fruits. These spores are commonly observed and are a normal part of outside air.

Indoor Habitat: Wetted wood and gypsum wallboard paper, textiles, leather, able to grow on many types of substrates.

Allergy Potential: Type I (hay fever, asthma), Type III (hypersensitivity pneumonitis) Disease Potential: Opportunistic pathogen in immunocompromised persons, not normally a pathogen in healthy individuals.

Toxin Potential: Several known

Comments: Extremely common in indoor air in low to moderate amounts as compared to the outside air. This type of spore should not be present in very high numbers as compared to the outside (control) nor constitute an overwhelming percentage (e.g., 90% or greater) of the total spores in that room(s). However, this type of mold spore is not always detected in outside air and when diversity of mold types are low in the indoor sample(s), their percentage can be 90% or more. Therefore, when the raw numbers are low the determination would be NORMAL even if the percentage is high.

There is a wide range of what is a NORMAL amount of this type of mold spores in indoor air and 200 - 700 spores per cubic meter are commonly seen in homes.

These two genera are grouped together because they cannot be reliably differentiated into their respective genera based solely on…