Amendment_02_-_Revised_PWS_ _TEs_AG-64R4-S-15-0018.pdf

PERFORMANCE WORK STATEMENT (PWS) – AMENDMENT 2

MOLD REMEDIATION – POTOSI ASST RANGER DWELLING AND OZARK TRAIL HOUSE

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1. General:

Introduction: The Contractor shall furnish all personnel, equipment, supplies, transportation, tools, 1.1.

materials, supervision, certifications and environmental permits/documentation necessary to provide for the work summarized as follows:

• Complete mold remediation (Level 1, 2 and 3) at two dwellings, including cleaning, sealing and air clearance sampling as described herein;

• Perform partial removal of various items, including kitchen and sink base cabinet shelves (see Technical Exhibit 01);

• HVAC duct cleaning.

Period and Place of Performance: The period of performance shall be no more than 45 days upon issuance 1.2.

of the notice to proceed. All work to be done shall be at two dwellings adjacent to the Ranger Office, located at Mark Twain National Forest, Potosi-Fredericktown Ranger District Office, 10019 West Highway 8, Potosi, MO.

Pre-bid site visit: Government will facilitate a pre-bid site visit. 1.3.

Schedule: 1.4.

1.4.1. Within five working days after issuance of contract Award, the contractor shall submit a ‘Work Plan’ and project work schedule. See section 5 for Work Plan requirements.

1.4.2. Work shall begin within 10 contract days from the Notice to Proceed.

1.4.3. Contractor shall take all precautions to avoid delays, and adhere to the established schedule.

Hours of Operation: Normal business hours, 0800-1630, Monday through Friday, unless prior approved by 1.5.

the COR.

Special Qualifications: Contractor shall demonstrate three or more years of experience with mold 1.6.

remediation of comparable extent and complexity. All work with mold shall be performed with, and under the constant supervision of, a skilled and experienced mold remediation professional, who has achieved the Council Mold Remediation (CMR) certification, or approved equal. Contractor employee workers shall have a minimum of 16 hours of mold remediation training from an Indoor Air Quality Association (IAQA) approved training company.

Proof of training for each employee shall be submitted to the Contracting Officer with the bid. Alternative training organizations may be approved with proper justification of experience and alternate training. General asbestos awareness training is required, due to the presence of friable asbestos dry wall in the work area.

Submittals 1.7.

1.7.1. Submit required submittals in either PDF electronic file, or two hard copies. Submittals must be approved by the COR prior to start of work.

1.7.2. List of submittals: Contractor’s schedule, QCP plan, mold remediation work plan, HVAC remediation work plan. Product information submittals include mold cleaning/antimicrobial agent, mold resistance sealant.

Quality Assurance / Quality Control: 1.8.

1.8.1. Quality Assurance: The Government reserves the right to perform inspections and tests as and when it deems necessary to ascertain that contractual requirements are being fulfilled. The Government Inspector may observe and/or ask for explanation of work performed. The intent is not to delay the Contractor in any way.

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1.8.2. Quality Control: The Contractor shall develop and maintain an effective quality control plan (QCP) to ensure that services are performed in accordance with this PWS. The QCP must be forwarded to and accepted by the Contracting Officer (CO) at the post award conference. The plan, including changes, shall be subject to the approval of the CO. The QCP must be provided within five days of notice to proceed, and shall be kept current, reflecting the pertinent contract modifications and building changes or conditions, with updates being submitted immediately if changes made. The Contractor shall review the plan with his onsite personnel to ensure complete understanding. A copy of the most current QCP must be kept on file at the worksite where the tasks are being accomplished. The plan shall include the following general features:

1.8.2.1. Communications: A communication plan, which shall describe methods of direct and indirect communication with the Government regarding performance of the contract. The Contractor shall provide a telephone number that will allow the Government to contact them during working hours as needed.

1.8.2.2. Inspection System: An inspection system covering the services stated herein. The plan shall specify areas to be inspected, on either a scheduled or unscheduled basis, and the name and title of the individual performing the inspection.

1.8.2.3. Identification of deficiencies: A method for identifying deficiencies in the quality of services performed prior to the level of performance becoming unsatisfactory. The Contractor shall not rely on Government direction in correcting discovered deficiencies, but shall identify and correct problem areas on his own.

1.8.2.4. Contingency Plan: Contractor shall insure that work is complete as scheduled and is uninterrupted by employee stoppages.

Pre-work Conference: Prior to commencement of work, the CO/COR will arrange a meeting with the 1.9.

Contractor to discuss the contract terms and work performance requirements.

Work Coordination: Contractor shall perform, coordinate and complete the requirements of the contract in 1.10.

cooperation with any other contractors or trades performing work promptly and diligently as required by the standards of this contract.

Physical Security: The contractor shall prevent the loss or damage of Government property and be 1.11.

responsible for safeguarding all government equipment, information and property during the course of this contract.

Work Restrictions 1.12.

1.12.1. Assistant Ranger Dwelling (most eastern dwelling) is not occupied, therefore the Contractor limited only by Owner's right to perform work or employ other contractors on portions of Project. The Ozark Trail House is occupied by a private entity. If required, the Ozark Trail House can be vacated for the duration of the remediation, however all efforts must be made to minimize disruption to the occupant.

1.12.2. Keep driveways, parking areas, loading areas and entrances serving premises clear and available to Government, Government's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials. Do not close or obstruct walkways, corridors, or other occupied or used facilities without written permission from Government and authorities having jurisdiction.

1.12.3. Nonsmoking Building: Smoking is not permitted within the building or within 25 feet of entrances, operable windows, or outdoor-air intakes.

1.12.4. No guns are allowed in federal facilities.

Workmanship: 1.13.

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1.13.1. Contractor Personnel Conduct: The Contractor is required to conduct business in a professional and customer service oriented manner, with due regard for the safety and convenience of the site occupants and visitors. Contractor personnel shall conduct all operations in such a manner as to minimize any inconvenience to the occupants of adjacent buildings. Contractor personnel’s conduct shall not reflect discredit upon the Government. The Contractor shall ensure that personnel present a professional appearance. The Contractor’s employees shall observe and comply with all local policies and procedures concerning fire, safety, environmental protection, sanitation, security, and possession of firearms or other lethal or illegal weapons or substance. The Contractor shall remove from the job site any employee for reasons of misconduct or security.

Safety & Worksite Housekeeping: The Contractor shall take all precautions to maintain the work site at all 1.14.

times, in a condition that will prevent damage or injury to person or property, both Government or otherwise. The Contractor shall protect all personnel, whether government or civilian, from any and all safety hazards on job sites during progress of work on this contract. All worksites shall be kept free of litter or other debris at all times, and upon completion of work all residual materials shall be removed from the site and the area left clean. All debris will be lawfully disposed of off-site.

Field Measurements: The Contractor shall verify all measurements at the project(s) site and shall be 1.15.

responsible for all dimensions.

Damage to Personal Property/Government Property: 1.16.

1.16.1. The Contractor shall give immediate written notice to the CO or COR, of any condition, which is discovered, that may present a hazard, and be responsible for any damages and repairs to building during construction.

1.16.2. Damage by Negligence: Damage resulting in gas leaks, electrical outages, loss of heat during cold weather, water leaks, unsecured facilities, weather damage or oil/waste spills shall be responded to within two hours and repaired within one work day. If the Contractor fails to comply with these requirements the Government reserves the right to repair the damage and charge the cost to the Contractor. Contractor shall protect all areas through which they will be transporting demolition debris or construction materials. Any damaged turf, sidewalks, roads, vegetation, building components, etc., shall be replaced or repaired by the Contractor prior to Contract closeout.

1.16.3. Contractor Negligence or Omission: The Contractor, at no additional cost to the Government, shall accomplish all repairs resulting from acts of negligence on his part, or the part of his employees and agents.

Government Personnel: 1.17.

1.17.1. Contracting Officer (CO): A person with authority to enter into, administer, and or terminate contracts, and make related determinations and findings on behalf of the government. Note: The only individual who can legally bind the government.

1.17.2. Contracting Officer Representative (COR): The COR will be identified by separate letter. The COR monitors all technical aspects of the contract and assists in contract administration. The COR is authorized to perform the following functions: Assure that the Contractor performs the technical requirements of the contract;

perform inspections necessary in connection with contract performance; maintain written and oral communications with the Contractor concerning technical aspects of the contract; issue written interpretations of technical requirements, including Government drawings, designs, and specifications; monitor Contractor's performance and notifies both the CO and Contractor of any deficiencies; coordinate availability of government furnished property, and provide site entry of Contractor personnel. A letter of designation issued to the COR, a copy of which is sent to the Contractor, states the responsibilities and limitations of the COR, especially with regard to changes in cost or price, estimates or changes in delivery dates. The COR is not authorized to change any of the terms and conditions of the resulting order.

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1.17.3. Inspector: An individual appointed to make observations for the CO/COR. This person cannot direct work, or authorize changes to the contract, but instead has the goal of observing the work to be done so that the quality assurance objectives of the government are achieved.

Contractor Personnel: 1.18.

1.18.1. Designated Official: The Contractor shall provide a designated official who shall be responsible for the performance of the work. The designated official shall conduct overall management coordination and shall be the central point of contact with the Government for performance of all work under this contract. The name of this person and an alternate who shall act for the Contractor when the designated official is absent shall be designated in writing to the contracting officer no later than the post award orientation for this The designated official or alternate shall have full authority to act for the Contractor on all contract matters relating to daily operation of this contract.

1.18.1.1. The designated official shall be authorized to receive any notices of deficiency in contract performance.

The notices may include, but not be limited to, the following: non-performance of work, deficiencies in work performed and notices of proposed payment deductions for performance issues.

Reporting and Recordkeeping Requirements: 1.19.

1.19.1. The Contractor shall maintain detailed, complete and accurate billing records, supplier invoices, written quotations, parts and materials receipts, and any other financial data necessary to document compliance with this contract and make these records available for examination by the Contracting Officer when requested

1.19.2. Records shall be kept of identified deficiencies and the corrective action taken to correct them. Short term remedial actions and long term solutions shall be described in the corrective action report. All inspection documents shall be made available to the Government upon request.

1.19.3. Permits, Licenses, and Certificates: For Owner's records, submit copies of permits, licenses, certifications, inspection reports, notices, receipts for fee payments, and similar documents, established for compliance with standards and regulations bearing on performance of the Work.

Payments and Pricing 1.20.

1.20.1. Payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work and materials will be considered as incidental to and included in the payment for items shown. Equitable adjustments that are deemed fair and reasonable by the CO, shall be applied if necessary.

2. DEFINITIONS AND ACRONYMS:

Definitions 2.1.

2.1.1. Deliverable. Anything that can be physically delivered, but may include non-manufactured things such as meeting minutes or reports.

2.1.2. Existing to Remain: Existing items of construction that are not to be removed and that are not otherwise indicated to be removed, removed and salvaged, or removed and reinstalled.

2.1.3. Government Furnished Property. Property in the possession of, or directly acquired by, the Government and subsequently furnished to the contractor for performance of a contract. Government-furnished property includes, but is not limited to, spares and property furnished for repair, maintenance, overhaul, or modification.

Government-furnished property also includes contractor-acquired property if the contractor-acquired property is a deliverable under a cost contract when accepted by the Government for continued use under the contract.

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2.1.4. Government Property. All property owned or leased by the Government. Government property includes both Government-furnished property and contractor-acquired property. Government property includes material, equipment, special tooling, special test equipment, and real property. Government property does not include intellectual property and software.

2.1.5. Loss of Government Property. Unintended, unforeseen or accidental loss, damage, or destruction of Government property that reduces the Government’s expected economic benefits of the property. Loss of Government property does not include occurrences such as purposeful destructive testing, obsolescence, normal wear and tear, or manufacturing defects. Loss of Government property includes, but is not limited to items that cannot be found after a reasonable search, theft, damage resulting in unexpected harm to property requiring repair to restore the item to usable condition, or destruction resulting from incidents that render the item useless for its intended purpose or beyond economical repair.

2.1.6. Material. Property that may be consumed or expended during the performance of a contract, component parts of a higher assembly, or items that lose their individual identity through incorporation into an end-item.

Material does not include equipment, special tooling, and special test equipment or real property.

2.1.7. Physical Security. Actions that prevent the loss or damage of Government property.

2.1.8. Quality Assurance. The government procedures to verify that services being performed by the Contractor are performed according to acceptable standards.

2.1.9. Quality Assurance Surveillance Plan. An organized document written by the government specifying the surveillance methodology used for surveillance of contractor performance.

2.1.10. Quality Control. All necessary measures taken by the Contractor to assure that the quality of an end product or service shall meet contract requirements.

2.1.11. Remove: Detach items from existing construction and legally dispose of them off-site, unless indicated to be removed and salvaged or removed and reinstalled.

2.1.12. Remove and Reinstall: Detach items from existing construction, prepare them for reuse, and reinstall them where indicated.

2.1.13. Subcontractor. One that enters into a contract with a prime contractor. The Government does not have privity of contract with the subcontractor.

2.1.14. Wetting Agent. A chemical added to water to reduce the water's surface tension thereby increasing the water's ability to soak into the material to which it is applied. An equivalent wetting agent must have a surface tension of at most 2.9 Pa (0.00042 psi).

Acronyms 2.2.

CFR Code of Federal Regulations CO Contracting Officer COR Contracting Officer Representative COTS Commercial-Off-the-Shelf FAR Federal Acquisition Regulation GFP Government-Furnished Property POC Point of Contact PWS Performance Work Statement QA Quality Assurance QASP Quality Assurance Surveillance Plan

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QC Quality Control QCP Quality Control Program TE Technical Exhibit USDA United States Department of Agriculture USFS United States Forest Service

3. GOVERNMENT FURNISHED PROPERTY, EQUIPMENT AND SERVICES: Government will provide the utilities necessary to perform the work at the work site(s).

4. CONTRACTOR FURNISHED ITEMS: The Contractor shall furnish all equipment, materials, supplies, and services that are not specified herein as Government-furnished, which are necessary to comply with the requirements of this contract.

5. SPECIFIC TASKS: Work shall be performed in such a matter to meet the performance requirements stated herein. The Contractor shall be responsible for remediating all Level 1, 2 and 3 mold contaminated surfaces.

Contractor shall follow the recommendations in EPA's Mold Remediation in Schools and Commercial Buildings, the guidelines of the American Conference of Governmental Industrial Hygienists (ACGIH), or other guidelines from professional or government organizations. The Contractor shall observe Institute of Inspection, Cleaning and Restoration Certification (IICRC) S-500-2006 Standard and Reference Guide for Professional Water Damage Restoration and S520-2006 Standard Guide for Mold Remediation standards.

Mold Remediation: See Technical Exhibit 01 for specific abatement requirements. 5.1.

5.1.1. The Contractor shall submit a "Work Plan" prior to commencement of work. This plan shall detail all aspects of their proposed remediation procedures to include, IF APPLICABLE:

• Project supervisor and POC/Contact info

• All Work Areas/containments

• Type of technique for each Work Area/containment, including HEPA vacuuming

• Containment system if applicable

• Dust suppression methods, such as misting (not soaking)

• Use of anti-microbial lockdown (fogging) agent

• Use of sealing and wetting agents

• Signs and labels

• Access to remediation areas

• Air sampling and monitoring, as required

• Closeout Procedures including clean-up

• Worker protection in accordance with the OSHA respiratory protection standard (29 CFR 1910.134)

• Waste disposal.

5.1.2. Remediators should prevent cross contamination and shall use engineering controls to ensure worker safety and health in structural mold remediation projects. Engineering Controls may include but are not limited to containment isolation barriers, dust suppression and HEPA vacuuming and filtration.

5.1.3. Contractor shall insure that ambient indoor moisture levels are under fifty (50) percent, and provide proper instrumentation so that this can be verified by the Government.

5.1.4. The Contractor shall use an approved mold cleaning/anti-microbial agent that has a surface tension allowing maximum penetration and absorbency, be non-toxic, and colorless.

5.1.5. An approved mold resistant sealer/coating shall be applied to all remediated areas, unless otherwise approved by the COR. The agent shall be colorless/clear.

http://www.epa.gov/mold/mold_remediation.html https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=12716

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Furniture Moving: If furniture items must be moved in order to accomplish the aforementioned 5.2.

performance standard, the Contractor will be responsible for moving furniture. This includes but is not limited to, desks, cabinets, and boxes. If an area behind a piece of moved furniture requires remediation, contractor shall allow the Government to inspect it, prior to moving the furniture back into place.

Selective Demolition: See Technical Exhibit 01 for specific demolition requirements. With the exception 5.3.

HVAC drains (if needed), there is NO reconstruction of demolished components on this contract.

Disposal: Contractor shall be fully responsible for disposal of all materials, and shall insure that disposal is in 5.4.

accordance with all state and federal regulations.

5.4.1. Contaminated materials that cannot be cleaned should be removed from the building in sealed impermeable plastic bags. These materials may be disposed of as ordinary waste.

5.4.2. Package mold-contaminated materials in sealed bags before removal from the containment area to minimize the dispersion of mold spores.

Clean HVAC system 5.5.

5.5.1. Once final HEPA procedures have been conducted, the Heating Ventilation and Air Conditioning (HVAC) system should be remediated by a professional remediation contractor observing National Air Duct Cleaners Association (NADCA) guidelines and ACR 2013. This includes AHU surfaces, collectors and drains, coils, and fins. In addition, creation of service openings may be needed. Prior to HVAC work, plan for all work must be approved. In accordance with NADCA guidelines, minor HVAC parts may require replacement.

Close out 5.6.

5.6.1. All areas should be left dry and visibly free from contamination and debris.

5.6.2. De-humidifiers and air scrubber units should also be run for approximately 96 hours in area after all remediation has been completed. HEPA filters should be changed every 24-48 Hours.

5.6.3. Indoor Air Clearance Sampling: After remediation is complete, contractor shall perform indoor air clearance sampling to insure that each building is inhabitable.

5.6.4. All temporary controls will be removed. Any damage or residuals from containment will be removed.

Touch up and otherwise repair and restore marred exposed finishes to eliminate visual defects. Contractor will clean the work areas.

5.6.5. Regulations: The Contractor is responsible for all notifications, fees, licenses, training, permits, etc.

required to perform the work in accordance with applicable Federal and State statutes and regulations, and for subsequent fines or penalties for failure to conform to the requirements. The Contractor shall assume full responsibility and liability for compliance with all applicable Federal, State and local laws, rules and regulations pertaining to work practices, protection of workers, and authorized visitors to the site, person, and property adjacent to the work.

6. APPLICABLE PUBLICATIONS AND REGULATIONS

A Brief Guide to Mold in the Workplace, U.S. Department of Labor Occupational Safety and Health 6.1.

Administration. https://www.osha.gov/dts/shib/shib101003.html

Mold Remediation in Schools and Commercial Buildings. Environmental Protection Agency. 6.2.

http://www.epa.gov/mold/pdfs/moldremediation.pdf https://www.osha.gov/dts/shib/shib101003.html http://www.epa.gov/mold/pdfs/moldremediation.pdf

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TECHNICAL EXHIBIT 01

SPECIFIC ABATEMENT OR REMEDIATION INSTRUCTIONS

OTA House

BLDG

AREA ROOM LOCATION DEGREE

(Triangle Mold Assessment)

PWS REQUIREMENT

Main Floor

Kitchen Wall – behind cabinet

1,2 Major water damage/ mold growth was noted under kitchen sink.

Leave sink base cabinet in place, and cut out non-salvageable sink base shelf only. Remediate mold contaminated surfaces on wall and floor below shelf.

Bathroo m Cabinets 1,2 Major water damage/ mold growth was noted under bathroom sink.

Leave sink base cabinet in place, and cut out non-salvageable sink base shelf only. Remediate mold contaminated surfaces on wall and floor below shelf.

Base-ment

General

Walls- Concrete 1

Mold growth was noted on drywall and concrete walls throughout the basement. Historical and recent leaks have caused water/ severe mold damage to drywall material.

Floor 1 Linoleum. Minor mold growth.

Clean contaminated surfaces as much as practicable, by lifting up loosened areas and/or partially removing just enough to clean and seal underneath.

Remediate mold contaminated surfaces, but do not fully remove linoleum.

Near Furnace

Drywall 1,2,3

Mold growth was noted on drywall and concrete walls throughout the basement. Historical and recent leaks have caused water/ severe mold damage to drywall material.

Remediate mold contaminated surfaces, but do not remove or disturb dry wall.*

Shelves 1,2 Major water damage/ mold growth was noted u on basement shelving.

HVAC Ductwork/F urnace 1,2

Evaluation of the basement HVAC system noted the drip pan/drain lines are not draining normally. The combustion exhaust pipe is loose. All HVAC duct work and cold air returns are dirty/moldy. The HVAC is located in the basement, close to the mold damaged material and is constantly spreading excessive amounts mold spores to throughout the house.

Standing water was noted around Furnace unit.

Clean HVAC system

Exterio r Porch Trim/ Dry

Rot 1,2 dry rot was noted on exterior surfaces No work to be done to the building exterior.

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Potosi House

BLDG

AREA ROOM LOCATION DEGREE (Triangle Mold Assessment) PWS - Special Notes and Requirements

Main Floor

Dining* Windows 1

Several window sashes had noticeable minor mold growth indicating excessive amounts of mold spores in the air and poor air quality.

Walls/Wallp aper 1 No Elevated drywall humidity levels were noted.

Kitchen

Windows 1

Several window sashes had noticeable minor mold growth indicating excessive amounts of mold spores in the air and poor air quality.

Walls/Ceilin g Stains* 1 No Elevated drywall humidity levels were noted.

Cabinets 1,2 Major water damage and mold growth (historical leaks) were noted under the kitchen sink.

Leave sink base cabinet in place, and cut out non-salvageable sink base shelf only. Remediate mold contaminated surfaces on wall and floor below shelf.

Bathroo m*

Windows 1

Several window sashes had noticeable minor mold growth indicating excessive amounts of mold spores in the air and poor air quality.

Sink Cabinet 1,2 Major water damage and mold growth (historical leaks) were noted under the kitchen sink and bathroom sinks.

Leave sink base cabinet in place, and cut out non-salvageable sink base shelf only. Remediate mold contaminated surfaces on wall and floor below shelf.

Walls / Tub surround NA Not identified in report

Clean contaminated surfaces as much as practicable, by partially removing FRP panel just enough to clean and seal underneath. Remediate mold contaminated surfaces, but do not remove or disturb dry wall.*

Base-ment

General

Walls- Concrete 1,2,3 Minor mold growth was noted on all floor joists.

Drywall* 1,2,3 Remediate mold contaminated surfaces, but do not remove or disturb dry wall.*

Floor 1 Linoleum. Minor mold growth.

Clean contaminated surfaces as much as practicable, by lifting up loosened areas and/or partially removing just enough to clean and seal underneath.

Remediate mold contaminated surfaces, but do not fully remove linoleum.

HVAC Ductwork/F urnace 1,2 Clean HVAC system

Bathroo m

Walls* 1,2,3 Mold growth was noted on drywall and concrete walls throughout the basement.

Clean contaminated surfaces as much as practicable, by partially removing FRP panel just enough to clean and seal underneath. Remediate mold contaminated surfaces, but do not remove or disturb dry wall.*

Floors 1,2 Linoleum. Minor mold growth. Clean contaminated surfaces as much as practicable, by lifting up loosened

Page - 10 areas and/or partially removing just enough to clean and seal underneath.

Remediate mold contaminated surfaces, but do not fully remove linoleum.

Cabinet 1,2 Major water damage and mold growth (historical leaks) were noted under the kitchen sink and bathroom sinks.

Exterio r

North Trim/ Dry Rot 1,2

Wood siding. Minor dry rot mold damage was noted on all trim material

No work to be done to the building exterior.

South Trim/ Dry Rot 1,2

East Trim/ Dry Rot 1,2

West Trim/ Dry Rot 1,2

*Note: Dry wall on main floor tested positive for asbestos, so no disturbance to dry wall anywhere in either house will be performed. See asbestos report in technical exhibits.

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TECHNICAL EXHIBIT 02

MAP OF LOCATIONS

Ranger Station Ozark Trail House Assistant Ranger Dwelling

TECHNICAL EXHIBIT 03

ASSISTANT RANGER DWELLING MOLD ASSESSMENT

TRIANGLE ENVIRONMENTAL 1 MTNF Mold MARCH 2015

Environmental Science and Engineering Inc.

P.O. Box 1026

Rolla, MO 65402

Mold

Assessment Of

MARK TWAIN NATIONAL FOREST

RESIDENTIAL STRUCTURE

POTOSI, MO

February 2015

Prepared for

Amy Crews And

Mark Twain National Forest

TRIANGLE

TRIANGLE ENVIRONMENTAL 2 MTNF Mold MARCH 2015

TABLE OF CONTENTS

Page No.

1.0 INTRODUCTION

2.0 EXECUTIVE SUMMARY

3.0 HVAC

4.0 SURFACING MATERIALS

4.1 Flooring

4.2 Interior Walls and Ceilings

4.3 Exterior Walls

5.0 MISCELLANEOUS

5.1 Plumbing

5.2 Landscape

5.3 Site drainage

5.4 Interior Windows

5.5 Interior Items

5.6 Basement

5.7 Attic

6.0 ANALYTICAL

6.1 Swab/bulk sample

6.2 Air-O-Cell Sample

6.3 Temperature and Humidity

7.0 THERMAL IMAGRY ANALYSIS

8.0 CONCLUSIONS AND RECOMMENDATIONS

APPENDICES

APPENDIX A Inspection Logs/Analytical Results APPENDIX B Professional Qualifications APPENDIX C Thermal Imagery Analysis APPENDIX D Remediation Protocol APPENDIX E Mold Remediation in Schools and Commercial Buildings (EPA)

TRIANGLE ENVIRONMENTAL 3 MTNF Mold MARCH 2015

1.0 INTRODUCTION

On MARCH 2ND 2015 Triangle Environmental Science and Engineering was authorized AMY CREWS, (MTNF) to perform a professional mold Assessment at:

MTNF RESIDENTIAL STRUCTURE, POTOSI

A ONE story, wood constructed on finished basement, residential was inspected. The professional mold assessment was performed at the structure on March 3rd 2015 by John W. Cable. Mr. Cable is a certified

Mold inspector/Remediation Specialist (Appendix B). The inspection was limited to and conducted within the limitations of customary mold assessment procedures on the date of the inspection. Triangle

Environmental Science and Engineering Inc is not responsible for materials that were not evident from visual observations such as those hidden or beneath layers not readily identifiable.

2.0 EXECUTIVE SUMMARY

The professional Mold Assessment noted the following area/materials to contain mold:

MOLD ASSESSMENT DATE 3/3/2015

MTNF RESIDENTIAL INSPECTOR JOHN CABLE

POTOSI, MO

ROOM LOCATION DEGREE

MAIN FLOOR

DINING WINDOWS 1

WALLS--WALLPAPER 1

KITCHEN WINDOWS 1

WALLS/CEILING-STAINES 1

CABINETS 1,2

BATHRM WINDOWS 1

BASEMENT

WALLS-CONCRETE 1,2,3

DRYWALL 1,2,3

FLOOR 1

HVAC FURNACE/DUCT WORK 1,2

BATHRM WALLS 1,2,3

FLOOR 1,2

CABINET 1,2

FLOOR 1

EXTERIOR

N TRIM/DRYROT 1,2

S TRIM/DRYROT 1,2

E TRIM/DRYROT 1,2

W TRIM/DRYROT 1,2

TRIANGLE ENVIRONMENTAL 4 MTNF Mold MARCH 2015

Degree of Suspect Mold Growth

1 Minor Less than 10 ft2, surficial mold only, and/or can be remediated by cleaning with a weak soap/bleach, borax or fungicide solution (Note Appendices).

2 Major Surficial mold, Minor structure damage and/or more than 10 ft2, surficial mold can be remediated by cleaning with a weak soap/bleach, borax or fungicide solution. (Note Appendices) 3 Severe More than 10 ft2, surficial mold, hidden mold, structural damage, and/or needs professional renovation and mold abatement.

Exterior relative humidity and temperature reading on time of assessment:

(65-70% 45-480 F)

Evaluation of the building’s exterior noted site drainage is not sufficient. Splash blocks at downspouts are missing, storm water is and draining towards building. Gutters are full of debris. Storm water is not being directed away from structure and saturating concrete walls in the basement

Evaluation of the main floor noted normal temperature and humidity levels throughout. No Elevated drywall humidity levels were noted. No leaking pipes were noted. Minor mold growth was observed on window sashes indicating poor indoor air quality (excessive amounts of mold spores). Major water damage and mold growth (historical leaks) were noted under the kitchen sink and bathroom sinks.

Evaluation of the basement noted normal temperature and humidity levels throughout. Historical Leaking pipes from upstairs bathroom has caused water/mold damage to subfloor and drywall. Historical and recent water leaks and water infiltration has caused water/mold damage to concrete walls and flooring. A heavy mold odor was noted in the basement. Extensive historical water damage was noted throughout the basement. Water/mold damaged shelving was noted. Stormwater is infiltrating through foundation cracks.

Minor mold growth was noted on all floor joists.

Evaluation of the basement HVAC system noted the drip pan/drain lines are not draining normally. All

HVAC duct work and cold air returns are dirty/moldy. The HVAC is located in the basement, close to the mold damaged material and is constantly spreading excessive amounts mold spores to throughout the house.

Thermal imagery analysis (TiS300 Camera) noted water infiltration areas to be associated with the basement.

A single (1) swab samples was taken from interior basement bathroom wall. Analysis will be forwarded when complete.

Recommendations

Correct Site Drainage, clean gutters, and install splashblocks

Install dehumidifiers in basement

Clean HVAC system

Remediate all mold contaminated surfaces

TRIANGLE ENVIRONMENTAL 5 MTNF Mold MARCH 2015

Future preventative measures should include:

Routinely use vacuum, with HEPA filter, on all carpeting and flooring material.

Routinely change HVAC Filters Install quality HEPA filters in all HVAC systems Clean and dry wet spots promptly Fix leaking plumbing as soon as possible Watch for condensation and wet spots Prevent condensation by increasing temperature or reducing air moisture level Keep all heating, ventilation, and air conditioning drip pans clean, flowing properly and unobstructed Keep a low indoor humidity; below 50% relative humidity Make sure foundations stay dry by providing drainage which slopes away from the structure

It has been a pleasure serving you. It is highly recommended to have a professional mold abatement contractor remediate any identified major/severe mold growth. Triangle Environmental Science and

Engineering Inc appreciates the opportunity to provide you with professional environmental services. If you have any questions, please contact us anytime at 573-364-1864

John W. Cable President RG, IEP

TRIANGLE ENVIRONMENTAL 6 MTNF Mold MARCH 2015

3.0 Heating Ventilation & Air Conditioning (HVAC)

Evaluation of the basement HVAC system noted the drip pan/drain lines are not draining normally.

All HVAC duct work and cold air returns are dirty. The HVAC is close to the mold damaged material and is constantly spreading excessive amounts of mold spores to throughout the building

4.0 Surface Materials

4.1 Flooring

Flooring in the structure consisted of wood, carpet, concrete and tile flooring

MOLD ASSESSMENT DATE 3/3/2015

MTNF RESIDENTIAL INSPECTOR JOHN CABLE

POTOSI, MO

ROOM LOCATION DEGREE

BASEMENT

FLOOR 1

BATHRM FLOOR 1

Minor mold growth was noted on flooring

4.2 Interior Wall and Ceilings

Wall material was gypsum drywall, concrete and wood.

MOLD ASSESSMENT DATE 3/3/2015

MTNF RESIDENTIAL INSPECTOR JOHN CABLE

POTOSI, MO

ROOM LOCATION DEGREE

MAIN FLOOR

DINING WALLS--WALLPAPER 1

KITCHEN WALLS/CEILING-STAINES 1

BASEMENT WALLS-CONCRETE 1,2,3

DRYWALL 1,2,3

BATHRM WALLS 1,2,3

Mold growth was noted on drywall and concrete walls throughout the basement. Historical and recent leaks have caused water/ mold damage

TRIANGLE ENVIRONMENTAL 7 MTNF Mold MARCH 2015

4.3 Exterior Walls

Exterior walls were wood siding.

MOLD ASSESSMENT DATE 3/3/2015

MTNF RESIDENTIAL INSPECTOR JOHN CABLE

POTOSI, MO

ROOM LOCATION DEGREE

EXTERIOR

N TRIM/DRYROT 1,2

S TRIM/DRYROT 1,2

E TRIM/DRYROT 1,2

W TRIM/DRYROT 1,2

Minor dry rot mold damage was noted on all trim material

5.0 MISCELLANEOUS

5.1 Plumbing

NO Plumbing leaks was noted.

5.2 Landscaping

Landscaping is not affecting site drainage.

5.3 Site Drainage

Evaluation of the building’s exterior noted site drainage is not sufficient. Several splashblocks are missing.

Stormwater is draining toward the building and entering the basement.

5.4 Windows

Windows were metal, wooden and vinyl framed.

MOLD ASSESSMENT DATE 3/3/2015

MTNF RESIDENTIAL INSPECTOR JOHN CABLE

POTOSI, MO

ROOM LOCATION DEGREE

MAIN FLOOR

DINING WINDOWS 1

KITCHEN WINDOWS 1

BATHRM WINDOWS 1

Several window sashes had noticeable minor mold growth indicating excessive amounts of mold spores in the air and poor air quality.

TRIANGLE ENVIRONMENTAL 8 MTNF Mold MARCH 2015

5.5 Miscellaneous

MOLD ASSESSMENT DATE 3/3/2015

MTNF RESIDENTIAL INSPECTOR JOHN CABLE

POTOSI, MO

ROOM LOCATION DEGREE

MAIN FLOOR

KITCHEN CABINETS 1,2

BASEMENT

BATHRM CABINET 1,2

Major water damage/ mold growth was noted under bathroom and kitchen sinks.

5.6 Basement

Evaluation of the basement noted normal temperature and humidity levels throughout. Historical Leaking pipes from upstairs bathroom has caused water/mold damage to subfloor and drywall. Historical and recent water leaks and water infiltration has caused water/mold damage to concrete walls and flooring. A heavy mold odor was noted in the basement. Extensive historical water damage was noted throughout the basement. Water/mold damaged shelving was noted. Stormwater is infiltrating through foundation cracks.

Minor mold growth was noted on all floor joists.

5.7 Attic

NA

6.0 Analytical

6.1 Swab/bulk sample

A single swab was taken from interior surface (S-1: Basement wall ) The swab sample properly obtained, labeled, packaged and mailed to EMSL, St Louis, MO where is was analyzed for fungal spores, Fungal structures, hyphae and other particulates (Method MO41). Analysis will be forwarded when complete

6.2 Air-O-Cell Sample

NA

TRIANGLE ENVIRONMENTAL 9 MTNF Mold MARCH 2015

6.3 Temperature and Humidity

Relative temperature and humidity readings were obtained by a Lascar EL-USB data logger calibrated to obtain readings every ten (10) seconds. Data loggers were set in the kitchen and basement.

Normal temperature and normal humidity levels were observed. As a general rule, office temperature and humidity are matters of human comfort. OSHA has no regulations specifically addressing temperature and humidity in an office setting. However, "Recommendations for the Employer," provides engineering and administrative guidance to prevent or alleviate indoor air quality problems. OSHA recommends temperature control in the range of 68-76° F and humidity control in the range of 20%-60%. To control mold growth, the EPA recommends maintaining humidity under 50%.

TRIANGLE ENVIRONMENTAL 10 MTNF Mold MARCH 2015

7.0 Thermal Imagery Analysis

Thermal Imagery analysis was conducted via a Fluke TiS300- Thermal Image Camera properly calibrated for use on day of assessment. Thermal imagery was conducted on all exterior surfaces, and all interior wall/ceiling surfaces including all hallways, and noted rooms. Thermal imagery analysis (TiS300 Camera) noted water infiltration areas to be associated with basement.

8.0 Conclusions

Exterior relative humidity and temperature reading on time of assessment:

(65-70% 45-480 F)

Evaluation of the building’s exterior noted site drainage is not sufficient. Splash blocks at downspouts are missing, storm water is and draining towards building. Gutters are full of debris. Storm water is not being directed away from structure and saturating concrete walls in the basement

Evaluation of the main floor noted normal temperature and humidity levels throughout. No Elevated drywall humidity levels were noted. No leaking pipes were noted. Minor mold growth was observed on window sashes indicating poor indoor air quality (excessive amounts of mold spores). Major water damage and mold growth (historical leaks) were noted under the kitchen sink and bathroom sinks.

Evaluation of the basement noted normal temperature and humidity levels throughout. Historical Leaking pipes from upstairs bathroom has caused water/mold damage to subfloor and drywall. Historical and recent water leaks and water infiltration has caused water/mold damage to concrete walls and flooring. A heavy mold odor was noted in the basement. Extensive historical water damage was noted throughout the basement. Water/mold damaged shelving was noted. Stormwater is infiltrating through foundation cracks.

Minor mold growth was noted on all floor joists.

Evaluation of the basement HVAC system noted the drip pan/drain lines are not draining normally. All

HVAC duct work and cold air returns are dirty/moldy. The HVAC is located in the basement, close to the mold damaged material and is constantly spreading excessive amounts mold spores to throughout the house.

Thermal imagery analysis (TiS300 Camera) noted water infiltration areas to be associated with the basement.

A single (1) swab samples was taken from interior basement bathroom wall. Analysis will be forwarded when complete.

Recommendations

Correct Site Drainage, clean gutters, and install splashblocks

Install dehumidifiers in basement

Clean HVAC system

Remediate all mold contaminated surfaces

TRIANGLE ENVIRONMENTAL 11 MTNF Mold MARCH 2015

Future preventative measures should include:

Routinely use vacuum, with HEPA filter, on all carpeting and flooring material.

Routinely change HVAC Filters Install quality HEPA filters in all HVAC systems Clean and dry wet spots promptly Fix leaking plumbing as soon as possible Watch for condensation and wet spots Prevent condensation by increasing temperature or reducing air moisture level Keep all heating, ventilation, and air conditioning drip pans clean, flowing properly and unobstructed Keep a low indoor humidity; below 50% relative humidity Make sure foundations stay dry by providing drainage which slopes away from the structure

It has been a pleasure serving you. It is highly recommended to have a professional mold abatement contractor remediate any identified major/severe mold growth. Triangle Environmental Science and

Engineering Inc appreciates the opportunity to provide you with professional environmental services. If you have any questions, please contact us anytime at 573-308-0140

TRIANGLE ENVIRONMENTAL 12 MTNF Mold MARCH 2015

SPLASHBLOCKS MISSING FROM DOWNSPOUTS

WATER/MOLD DAMAGED DRYWALL

BASEMENT

TRIANGLE ENVIRONMENTAL 13 MTNF Mold MARCH 2015

MOLD GROWTH ON CONCRETE WALLS

MOLD DAMAGED SHELVING WATER/MOLD DAMAGE CABINETS

BASEMENT

WATER STAINES-CEILING MOLD DAMAGE CABINETS

KITCHEN

TRIANGLE ENVIRONMENTAL 14 MTNF Mold MARCH 2015

MOLD GROWTH

INSIDE HVAC COIL

TRIANGLE ENVIRONMENTAL 15 MTNF Mold MARCH 2015

APPENDIX C THERMAL IMAGERY ANALYSIS

CONCRETE WALLS DIRECTLY BELOW DRAINING DOWNSPOUTS (WITHOUT SPLASHBLOCKS)

WATER SATURATED CONCRETE

(BASEMENT)

THERMAL IMAGRY ANALYSIS WAS CONDUCTED BY A FLUKE Ti-300 IR FUSION CAMERA PROPERLY CALIBRATED ON THE DAY OF INSPECTION. IMAGES REFLECT CONDITIONS OF MATERIAL AT TIME OF INSPECTION ONLY. COOL TEMPERATURES (PURPLE AND BLUE COLORS) MAY INDICATED WATER INTRUSION OR DAMPNESS ON NOTED

SURFACES WHICH MAY BE ASSOCIATED TO WATER/MOLD DAMAGED SURFACES.

TRIANGLE ENVIRONMENTAL 16 MTNF Mold MARCH 2015

Appendix D Remediation Protocol: RESIDENTIAL, POTOSI, MO

Recommendations

Correct Site Drainage, properly place downspout connections and splashblocks

Install dehumidifiers in basement

Clean HVAC system

Remediate all mold contaminated surfaces

Future preventative measures should include:

Routinely use vacuum, with HEPA filter, on all carpeting and flooring material.

Routinely change HVAC Filters Install quality HEPA filters in all HVAC systems Clean and dry wet spots promptly Fix leaking plumbing as soon as possible Watch for condensation and wet spots Prevent condensation by increasing temperature or reducing air moisture level Keep all heating, ventilation, and air conditioning drip pans clean, flowing properly and unobstructed Keep a low indoor humidity; below 50% relative humidity Make sure foundations stay dry by providing drainage which slopes away from the structure

Basement. /

Due to noted location of major/severe mold growth in noted areas, the installation of a remediation containment system is suggested. Remediators should prevent cross contamination and shall use engineering controls to ensure worker safety and health in structural mold remediation projects.

Engineering Controls may include but are not limited to containment isolation barriers, pressure differentials, dust suppression and HEPA vacuuming and filtration. Containment should be erected using fireproof plastic sheeting of the following densities: ceiling 4 mil and walls 6 mil (where possible). It is NOT recommended that a negative air environment, be established.

Workers should wear approved High Efficient Particulate Air (HEPA) masks or respirators during all renovations. For proper remediation it is recommended that a professional mold abatement contractor observe Institute of Inspection, Cleaning and Restoration Certification (IICRC) S-

500-2006 Standard and Reference Guide for Professional Water Damage Restoration and

S520-2006 Standard Guide for Mold Remediation standards. Remediators should post warning signs stating that mold remediation is in progress. Remediators should restrict access to work or containment areas. Dehumidify ambient indoor moisture levels to under fifty (50) percent.

It is recommended that all personnel working within the structure should use proper Personal

Protection Equipment (PPE) at level C consisting of an Air Purifying Respirator (APR) and non-encapsulated chemical-resistant clothing, gloves, eye protection, and boots.

TRIANGLE ENVIRONMENTAL 17 MTNF Mold MARCH 2015

Correct site drainage, remove all mold damaged material. All affected surfaces should then be

HEPA vacuumed starting at the highest elevation, combined with mechanical agitation (scrubbing, sanding, etc.), working from highest elevation point to toward the point of air exchange unit/ fan.

The remediation professional should then use an approved mold cleaning/anti-microbial agent on all affected surfaces. The agent should have surface tension allowing maximum penetration and absorbency, be non-toxic, and colorless. After the initial cleaning/anti-microbial agent has been applied, the structure should again be HEPA vacuumed equivalent to the aforementioned procedures. A mold resistant sealer/coating should be subsequently applied to all remediated areas. The sealing agent should be colorless/clear. An anti-microbial lockdown (fogging) agent should then be used on ambient air.

De-humidifiers and air scrubber units should also be run for approximately 96 hours in area after all remediation has been completed. HEPA filters should be changed every 24-48

Hours.

HVAC

Install dehumidifiers in the structure. Once final HEPA procedures have been conducted the

Heating Ventilation and Air Conditioning (HVAC) system should be remediated by a professional remediation contractor observing National Air Duct Cleaners Association (NADCA) guidelines.

Main Floor

HEPA Vacuum all surfaces, De-humidifiers and air scrubber units should be during remediation and run for approximately 96 hours in area after all remediation has been completed. HEPA filters should be changed every 24-48 Hours.

ONCE REMEDIATION HAS BEEN PROPERLY COMPLETED AN INDOOR AIR

QUALITY CLEARANCE ASSESSMENT IS HIGHLY RECOMMENDED.

TECHNICAL EXHIBIT 04

ASSISTANT RANGER DWELLING MOLD LAB ANALYSIS

RESULTS

P.O. Box 1026

Rolla, MO 65402

Phone 573-364-1864 cell: 573-308-0140 fax 573-364-1864

TRIANGLE

March 12th, 2015

Amy Crews Mark Twain National Forest 401 Fairgrounds Road Rolla, MO 65401

RE: Mold Assessment Residential Structure, Potosi, MO

Dear Amy, Triangle Environmental Science and Engineering is pleased to have completed a professional mold Assessment at: MTNF RESIDENTIAL STRUCTURE, POTOSI. A ONE story, wood constructed on finished basement, residential was inspected. The professional mold assessment was performed at the structure on March 3rd 2015 by John W. Cable. Mr. Cable is a certified Mold inspector/Remediation Specialist. The professional Mold Assessment noted the following area/materials to contain mold:

MOLD ASSESSMENT DATE 3/3/2015

MTNF RESIDENTIAL INSPECTOR JOHN CABLE

POTOSI, MO

ROOM LOCATION DEGREE

MAIN FLOOR

DINING WINDOWS 1

WALLS--WALLPAPER 1

KITCHEN WINDOWS 1

WALLS/CEILING-STAINES 1

CABINETS 1,2

BATHRM WINDOWS 1

BASEMENT

WALLS-CONCRETE 1,2,3

DRYWALL 1,2,3

FLOOR 1

HVAC FURNACE/DUCT WORK 1,2

BATHRM WALLS 1,2,3

FLOOR 1,2

CABINET 1,2

FLOOR 1

EXTERIOR

N TRIM/DRYROT 1,2

S TRIM/DRYROT 1,2

E TRIM/DRYROT 1,2

W TRIM/DRYROT 1,2

Rolla, MO 65402

Phone 573-364-1864 cell: 573-308-0140 fax 573-364-1864

TRIANGLE

Degree of Suspect Mold Growth 1 Minor Less than 10 ft2, surficial mold only, and/or can be remediated by cleaning with a weak soap/bleach, borax or fungicide solution (Note Appendices).

2 Major Surficial mold, Minor structure damage and/or more than 10 ft2, surficial mold can be remediated by cleaning with a weak soap/bleach, borax or fungicide solution. (Note Appendices) 3 Severe More than 10 ft2, surficial mold, hidden mold, structural damage, and/or needs professional renovation and mold abatement.

Exterior relative humidity and temperature reading on time of assessment: (65-70% 45-480 F) Evaluation of the building’s exterior noted site drainage is not sufficient. Splash blocks at downspouts are missing, storm water is and draining towards building. Gutters are full of debris.

Storm water is not being directed away from structure and saturating concrete walls in the basement Evaluation of the main floor noted normal temperature and humidity levels throughout.