Solicitation_AG-32KW-S-16-0027_MMF_Mold_Remediation.pdf

Solicitation No.: AG-32KW-S-16-0027

Section C – Description/Specifications

C.1 CONTRACT PROJECT:

1.1 Title: Mold Remediation

1.2 Location: USDA, APHIS, PPQ Mexican Fruit Fly Rearing Facility (MFFRF) Building 6418

Moore Air Base 22675 N. Moorefield Road, Edinburg, Texas 78541

I. INTRODUCTION

A mold assessment of the MFFRF Building 6418 was conducted December 31, 2014 under an Inter-Agency Agreement established between the Federal Occupational Health (FOH) and APHIS. The inspection revealed significant moisture and mold problems in the building. Due to condensation occurring around Heating Ventilation and Air Conditioning (HVAC) duct insulation; water damage, suspect fungal growth, and mold contamination were identified in ceiling tile, gypsum wallboard (ceiling/walls), pipes, and HVAC duct insulation, etc. In addition, concerns have arisen relative to properly ventilating air space above the drop ceiling to prevent moisture from impacting the building’s plenum space. This document will help address the remediation of mold and fungal contaminates within the building.

II. SCOPE OF WORK

The purpose of this Statement of Work (SOW) is to procure Design/Build Contractor services for mold and fungal remediation of contaminated ceilings, walls, pipes, ducts, and ceiling plenum materials. Contractor shall perform the following tasks: (1): Assess the areas identified in table 1 to verify if the affected areas have expanded or has caused other damages. (2) Based on the assessment, develop a remediation plan for review and approval by the Government, (3) develop remediation drawings/specifications to correct the problem, (4) perform mold remediation and (5) replace contaminated materials with new materials. Mold remediation shall include but not be limited to locating moisture problem areas, correcting and cleaning up mold and fungal encased areas, and replacing contaminated materials with new materials.

Note:

Project shall be performed in two phases with the ERF building portion being completed first.

Phase 2 (Rearing section) cannot commence until Phase 1 is totally completed. This will allow the Government to start resuming normal operations. Phases are as identified in Table 1. Note:

Building operations shall be suspended between June 14, 2016 and July 31, 2016. It is imperative that mold remediation is completed during this time period. Project duration shall not exceed 60 calendar days.

Contractor shall provide all labor, materials, equipment, supplies, etc. to ensure completion of this project. In addition, Contractor shall provide/develop any applicable drawings impacted by the remediation, as well as, as-built drawings to reconstruct areas of the building affected by the work performed. Contractor shall meet with the Government, Contracting Officer Representative (COR), Designated Safety Representative (DSR), etc.] to ascertain a clear understanding of the project scope; existing conditions; site safety and security concerns; badging; and accessibility and scheduling requirements. Tasks that are unclear shall be confirmed with the Contracting Officer (CO) prior to incurring costs. At a minimum, Contractor shall provide services as identified in the SOW. Contractor shall verify existing conditions prior to submitting the proposed bid cost.

1. Remove and replace contaminated material at a minimum of two-feet beyond the last visible and/or identified mold location in all directions. Clean and treat all exposed wall cavities. If additional fungal growth or water damage is discovered in areas outside the work scope of this project, Contractor shall immediately notify the COR that additional remediation is required.

Reference Attachment 1, Table 1 – “Material Replacement.”

2. Provide a Mold Assessment and Remediation Plan for review and approval by the

Government. Assessment shall validate estimated work areas as shown in Table 1 – Material Replacement, existing conditions, and identify abatement procedures per general industry guidelines and Environmental Protection Agency (EPA) approved remediation methods. Verify if air ducts have visible mold growth inside hard surfaces or on components of the heating and cooling system. Any suspicious substance found in the air ducts shall be verified through laboratory analysis.

a. Contractor is responsible for any fees associated with analyzing laboratory samples for suspect material. Prior to performing any analyses, notify the COR for concurrence of sampling. Any laboratory samples for suspect material over three (3) shall be address as a contract modification.

3. Remove and replace wall board and ceiling board and/or grid ceilings as specified in

Table 1 – Material Replacement. All material shall be replaced in kind. No gypsum board from China shall be allowed on project. Perform work in accordance with GA-214 and GA-216, Gypsum Association “Levels of Gypsum Board Finish” and “Application and Finishing of Gypsum Board,” respectively. Gypsum board used in ceiling shall have anti-sag performance.

4. Contractor to paint materials such as painted ceiling tiles in areas that are prone to mold growth. Tiles should be replaced and re-painted with an anti-microbial paint such as Foster 40-20. Contractor shall provide 5% of the tiles as a stock item.

5. Painted textured vinyl wall panels should be replaced with smooth unpainted vinyl.

Finish shall be smooth and match existing color. In spaces where only parts of the wall/ceiling are replaced, paint from one wall all the way to the other regardless of how much material was replaced. Apply primer/paint per manufacturer’s recommendations.

Any areas disturbed or damaged during this process shall be repaired at the Contractor’s expense.

6. Submit color samples for approval by the Government. Submit color name, sheen and location of paint actually used on the project for Government records. Submit manufacturer’s certificate that certifies the low Volatile Organic Compound (VOC) content of the products.

7. Clean spattered surfaces. Do not scratch or damage adjacent finished surfaces. Protect work of other trades against damage from paint application. Correct damage to work of other trades by cleaning, repairing, replacing, and refinishing by the Trade Professional.

Repair of damaged surfaces shall meet the approval of the Facility Manager. Contractor to provide one gallon of paint per color used as a stock item.

8. Apply paints only when temperature of surfaces to be painted and ambient air temperature are between 50 and 95 degrees F. Do not apply paints when the relative humidity exceeds 85 percent at temperatures less than 5 degrees F above the dew point;

or to damp or wet surfaces.

9. Provide proper ventilation when applying primer or painting. Allow adequate drying time before occupying the painted space.

10. Air duct blanket insulation and vapor barrier shall conform to ASTM standards. Provide external duct insulation with a vapor barrier and sufficient installed R value to meet the energy code and prevent condensation. Contractor shall submit supporting documentation identifying the require R-value for the space. The minimum R-value requirements shall be not be less than R-8 on the supply duct and R-4 on the return duct or what is currently installed whichever is more stringent. Securely fasten all joints, seams, and connections with welds, gaskets, mastics (adhesives), mastic-plus-embedded- fabric, or tapes. "Duct tape" and “tape mastics” are not permitted.

11. Provide a Waste Management Plan (WMP) for review and approval by the Government. WMP should address remediation materials that are removed, disposed, salvaged and/or recycled; transportation hauling, site sorting, and storage methods.

WMP should also identify the proposed landfill used for disposal. Contractor shall collect and remove waste materials, debris and rubbish from the site weekly and dispose of off-site. Maintain site in a clean and orderly manner. Submit documentation prior to substantial project completion substantiating the WMP was maintained and goals were achieved including associated costs or savings. Maintain all disposal receipts for project closeout.

12. Remediation waste classified as hazardous waste per the EPA guidelines shall not be disposed of with regular waste. Contractor shall immediately notify the COR of any suspect material potentially disturbed during the mold remediation process that is identified as asbestos containing material. Removal of any asbestos containing material shall be addressed as a contract modification.

13. Provide an Emergency Management Plan (EMP) for review and approval by the

Government. EMP should address emergency procedures and include pertinent telephone numbers.

14. Provide a detailed Safety Management Plan (SMP) for review and approval by the

Government. SMP, at a minimum, should address the following: (1) how the Contractor will maintain safety standards in public work areas including appropriate air exchanges,

(2) design and placement of remediation placards, (3) how the Contractor will comply with USDA safety practices, general operating procedures and security regulations, (4) sampling and monitoring procedures, (5) the number of High Efficiency Particulate Air (HEPA) filter machines utilized including placement, and (6) clean-up of containment substrates. In addition, the SMP should include remediation drawings and a detail write-up of the work area setup.

15. Coordinate all aspects of the remediation process with the COR. The COR shall have final authority on all elements of the remediation process including but not limited to air sampling clearance, acceptable clearance for remediated area, testing, removal of containment barrier, or determining if an area requires re-cleaning, monitoring, etc.

Removal of a containment barrier shall be by written authorization only.

16. Ensure that Personal Protective Equipment (PPE) is employed and a proper containment with appropriate air exchanges and differential pressures is constructed at the site to minimize the impact to employees from airborne mold spores. If feasible, the exhaust stream from containment shall be expended outdoors. If exterior exhausting cannot be achieved, exhaust shall be double scrubbed. Ensure employees are trained to work in designated areas where there is a potential for airborne and surface fungal contamination.

Submit documentation to the Government indicating that employees are trained to work in contaminated areas.

a. Ensure workers are trained in the use of the specific remediation procedures in accordance with the Hazard Communication Standard 1910.1200.

b. Personnel shall be medically fit to wear a negative pressure respirator and be covered under a Respiratory Protection Program per OSHA 1910.134. Specific PPE that will be utilized during the remediation should be identified in the site specific work plan.

c. Tyvek (or equivalent) disposal suits shall be worn at all times during removal, disposal and cleanup activities. PPE shall include but not be limited to head gear, goggles, foot covers, and gloves.

17. Provide and maintain reasonable medical and first aid services near the remediation area. Contractor shall ensure at least two (2) employees are trained to handle minor medical problems.

18. The Contractor shall protect the building and its occupants during the remediation period taking all necessary precautions (i.e., manage the source of pollutants either by removing them from the building, isolating pollutants from the people with physical(critical) barriers, utilizing proper ventilation or filtration, properly sealing openings, etc.) to ensure indoor air quality is free from air pollutants and to prevent the entrainment of dust and mold spores in the HVAC supply and return vents. The Contractor shall make all necessary provisions to keep the operational part of the facility safe, watertight, air tight, and dust free at all times, and shall cooperate to keep noise, dirt, and other interferences to a minimum.

19. Provide decontamination (decon) unit for workers to prevent cross contamination of adjacent surface areas. Decon unit shall be provided for workers to remove PPE and double bag waste removed from the containment area. The decontamination unit shall have double flapped entry/exit curtains (air locks) or a zippered entry/exit, unless stricter guidelines are required by governing regulations.

20. Dispose of stagnant water that may accumulate in ducts, humidifiers, drain pans, etc.

promptly to eliminate the breeding of contaminants that may become airborne.

21. If equipment or electrical devices are removed during the remediation process, coordinate the exact location of all equipment with the Government prior to final connection. (A meeting between the Government and Contractor’s representative on this is essential.) All equipment shall be rated per code for the environment in which installed.

22. Coordinate all work to preclude interference with the daily operations of the facility. If work will impact the operation of the facility, Contractor shall provide the COR and Facility Manager with a minimum of seven (7) days’ written notice prior to executing any work.

a. This is a secure facility and access to the interior is restricted to USDA personnel only. The Government shall direct all ingress and egress to the work area unless other arrangements are approved. Security precautions against unauthorized facility entrance will be maintained.

b. Contractor shall examine the premises and satisfy himself as to the existing conditions under which he will be obligated to perform the work.

23. Tag out electrical equipment prior to starting remediation repairs that are affected by a particular circuit in a specific work area. Provide a minimum of five (5) days’ written notice to the COR and Facility Manager prior to de-energizing any electrical system.

24. Contractor is required not only to install Government Furnished Equipment, but also to install and/or provide all necessary hardware (i.e., lights, conduit, cable, etc.) required to make the equipment functional per the manufacturer’s specifications. Consider conduit/ delivery options that minimize encroachment of the space around equipment.

25. Drawings provided by the Government are conceptual in nature only and shall be confirmed by the Contractor in the field.

26. Coordinate development of remediation drawings with other disciplines to identify potential conflicts and minimize re-work.

27. Upon completion of remediation, perform initial startup of all equipment to ensure equipment is working per the design requirements and the manufacturer’s specifications. Submit written documentation stating that equipment is functioning correctly.

28. Equipment storage for the Contractor is not available on site. Contractor is responsible for equipment/material storage and shall submit a storage plan f to the Government for review. Cover products subject to deterioration with impervious sheet covering. Provide ventilation to prevent condensation and degradation of products. Arrange products as to permit access for inspection by USDA personnel. Store sensitive products in weather tight, climate controlled enclosures in an environment favorable to the product.

29. Existing walls, ceilings, floors, piping, equipment, electrical system, ducting, etc.

damaged by the Contractor shall be repaired by a trade professional at no cost to the Government.

30. Provide Safety Data Sheets (SDS) and product data sheets for all materials used to execute this SOW. All SDS shall be submitted for approval prior to implementation of this specification. Include the specific product names of chemicals, glues, sealants, paints, etc. intended for use to the COR.

31. Provide documentation that HEPA vacuum machines were cleaned prior to mobilizing on site. Pre and intermediate filters shall be new. Replace filters as required during the remediation process.

32. Contractor shall submit documentation that workers are fully trained and certified by the

TDSHS for mold remediation and that the company is licensed by Texas Department of State Health Services (TDSHS) as a Mold Remediation Contractor and Mold Remediation Company.

OPTION

SUBJECT: Exhaust Ventilation:

Contractor shall research and recommend required ventilation exhaust in the plenum space to ensure adequate airflow to minimize condensation, prevent and reduce mold contamination.

III. GENERAL REQUIREMENTS

Prior to the start of remediation, Contractor shall submit for review and approval remediation drawing submittals for all proposed work including manufacturers’ catalog cut-sheets, safety data sheets, and storage plans for the Contractor’s materials and equipment. Remediation drawings and specifications should show all proposed work items, including but not limited to, installing new equipment or devices, base line test samples, etc. Submittals shall meet the requirements of section XIV “Project Submittal.” Drawings must be signed and sealed by a Professional Engineer registered in Texas. It is expected that the Contractor will use professional judgment in determining that a sufficient amount of information is included in each submittal. Remediation drawings shall meet the requirements of paragraph XII.3 “Compliance with Building Codes.”

1. Contractor shall comply with the latest editions of national codes and regulations including federal, state, and local laws. Contractor shall pull all applicable permits and licenses, and provide proof of insurance prior to the start of remediation. The Contractor is responsible for all violations in connection with the work. Codes and regulations include, but are not limited to, the following:

• International Building Code (IBC)

• National Fire Protection Code (NFPA)

• National Electrical Code (NEC)

• National Life Safety Code

• Occupational Safety and Health Administration Regulations (OSHA)

• National Plumbing Code

• USDA Facilities Design Standards - ARS 242-01M

• Environmental Protection Agency (EPA)

• Texas Mold Assessment and Remediation Rules (TMARR)

2. The Contractor shall provide a schedule in writing within 5 days of issuance of the

Notice to Proceed. Submit schedule in bar chart (Gantt) format or similar. Schedule should indicate (1) project requirements for each submission and review stage; (2) indicate the contract time requirement for meeting deadlines; and (3) schedule sequence as provided by the Government. In addition, schedule should include days needed by the Government to transition into and out of “swing space.” A minimum of 14 calendar days is required by the Government. Schedule is subject to negotiation. Note: The scheduling sequence, identified in descending order of priority, will provide the least impact to the facility.

3. Contractor shall utilize professional judgment for the removal of contaminated building materials identified within Government occupied office space.

4. Working Hours: Working hours for the project will be determined at the preconstruction meeting. Project duration shall not exceed six (6) weeks and shall be completed during the June /July 2016 time frame.

5. Federal Occupational Health Assessor (FOHA): An FOHA will be assigned to the project during remediation to ensure contaminants generated within containment do not escape unnecessarily as well as to ensure HEPA filtering devices are properly working to capture and control all released microbial agents. FOHA in coordination with COR will ensure the Contractor maintains compliance using current EPA guidelines and TMARR.

FOHA shall determine acceptable clearance results.

IV. PROJECT DATA

All available as-built or record drawings shall be provided to the Contractor at the Pre- Remediation Conference, such as the proposed floor plan, site utilities plans, etc. The following information is also available for the Contractor’s use:

• USDA Facilities Design Standards http://www.afm.ars.usda.gov/ppweb/PDF/242-

01M.pdf

• USDA Green Purchasing Affirmative Procurement Program:

http://greening.usda.gov/gpapp08.pdf

• Designated Green Products for Federal Procurement www.lbl.gov/Workplace/CFO/pro/DesignatedGreenProducts.xls

• APHIS Environmental Protection Program http://www.aphis.usda.gov/mrpbs/publications/safety_security/downloads/environmental _protection_program.pdf and http://www.aphis.usda.gov/wps/portal/aphis/resources/manualsandguidelines?1dmy&uril e=wcm%3apath%3a%2Faphis_content_library%2Fsa_resources%2Fsa_laws_and_regula tions%2Fsa_environmental_protection%2Fsa_statutes%2Fct_aphis_implementing_nepa_ procedures http://www.afm.ars.usda.gov/ppweb/PDF/242-01M.pdf http://www.afm.ars.usda.gov/ppweb/PDF/242-01M.pdf http://greening.usda.gov/gpapp08.pdf http://www.lbl.gov/Workplace/CFO/pro/DesignatedGreenProducts.xls http://www.aphis.usda.gov/mrpbs/publications/safety_security/downloads/environmental http://www.aphis.usda.gov/mrpbs/publications/safety_security/downloads/environmental_protection_program.pdf http://www.aphis.usda.gov/wps/portal/aphis/resources/manualsandguidelines?1dmy&amp%3Burile=wcm%3apath%3a%2Faphis_content_library%2Fsa_resources%2Fsa_laws_and_regulations%2Fsa_environmental_protection%2Fsa_statutes%2Fct_aphis_implementing_nepa_procedures http://www.aphis.usda.gov/wps/portal/aphis/resources/manualsandguidelines?1dmy&amp%3Burile=wcm%3apath%3a%2Faphis_content_library%2Fsa_resources%2Fsa_laws_and_regulations%2Fsa_environmental_protection%2Fsa_statutes%2Fct_aphis_implementing_nepa_procedures http://www.aphis.usda.gov/wps/portal/aphis/resources/manualsandguidelines?1dmy&amp%3Burile=wcm%3apath%3a%2Faphis_content_library%2Fsa_resources%2Fsa_laws_and_regulations%2Fsa_environmental_protection%2Fsa_statutes%2Fct_aphis_implementing_nepa_procedures http://www.aphis.usda.gov/wps/portal/aphis/resources/manualsandguidelines?1dmy&amp%3Burile=wcm%3apath%3a%2Faphis_content_library%2Fsa_resources%2Fsa_laws_and_regulations%2Fsa_environmental_protection%2Fsa_statutes%2Fct_aphis_implementing_nepa_procedures http://www.aphis.usda.gov/wps/portal/aphis/resources/manualsandguidelines?1dmy&amp%3Burile=wcm%3apath%3a%2Faphis_content_library%2Fsa_resources%2Fsa_laws_and_regulations%2Fsa_environmental_protection%2Fsa_statutes%2Fct_aphis_implementing_nepa_procedures http://www.aphis.usda.gov/wps/portal/aphis/resources/manualsandguidelines?1dmy&amp%3Burile=wcm%3apath%3a%2Faphis_content_library%2Fsa_resources%2Fsa_laws_and_regulations%2Fsa_environmental_protection%2Fsa_statutes%2Fct_aphis_implementing_nepa_procedures http://www.aphis.usda.gov/wps/portal/aphis/resources/manualsandguidelines?1dmy&amp%3Burile=wcm%3apath%3a%2Faphis_content_library%2Fsa_resources%2Fsa_laws_and_regulations%2Fsa_environmental_protection%2Fsa_statutes%2Fct_aphis_implementing_nepa_procedures http://www.aphis.usda.gov/wps/portal/aphis/resources/manualsandguidelines?1dmy&amp%3Burile=wcm%3apath%3a%2Faphis_content_library%2Fsa_resources%2Fsa_laws_and_regulations%2Fsa_environmental_protection%2Fsa_statutes%2Fct_aphis_implementing_nepa_procedures

• Preferred Biobased Products found at http://www.biopreferred.gov/ProposedAndFinalItemDesignations.aspx

• Unified Facilities Criteria - Design Hazardous Waste Storage dated January 16, 2004.

http://www.wbdg.org/ccb/DOD/UFC/ufc_4_451_10n.pdf

• American Conference of Governmental Industrial Hygienist’s Handbook Bioaerosols Assessment and Control, 1999

• New York City Department of Health and Mental Hygiene’s “Guidance on Assessment and Remediation of Fungi in Indoor Environments,” 2008.

http://www.nyc.gov/html/doh/downloads/pdf/epi/epi-mold-guidelines.pdf

• Occupational Safety and Health Administration Regulations as follows:

a. “Hazardous Communication Standard 1910.1200.”

http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDA R DS&p_id=10099

b. 1910 Subpart I - Personal Protective Equipment

c. 1910.137 - Electrical protective devices.

d. 1910 Subpart J - General Environmental Controls

• U.S. Environmental Protection Agency’s “Mold Remediation in Schools and

Commercial Buildings.” http://www.epa.gov/mold/mold_remediation.html

• Texas Department of State Health Services Mold Assessment and Remediation Rules. http://www.dshs.state.tx.us/mold/rules.shtm

• American Society of Safety Engineers (ASSE), “Mold in the Indoor Working Environment” adopted October 2003.

http://www.asse.org/professionalaffairs_new/positions/mold.php

• Record drawings. Drawings provided by the Government are conceptual in nature only and shall be field verified for accuracy. Drawings are available at the site.

V. AFFECTED AREAS AND MATERIALS

All measurements as identified in the 2014 report are approximate. Contractor shall verify to ensure complete remediation of all affected areas (II. Scope of Work (1).

1. Administration (Admin) Hallway (193 square feet). The admin hallway is adjacent to offices 5, 6, and 7; restrooms, and locker rooms. There is approximately two (2) – three

(3) square feet of green-like mold on the surface of the ceiling tiles and ceiling tile metal grid.

The ceiling plenum space above has ducts lined with fiberglass foil insulation that has suspect surface mold and visible suspect black mold was also observed on fiberglass insulated pipes. There was an moderate amount of mold/debris on top of the ceiling tiles. The amount of visible mold in the plenum space is hard to determine. A rough estimate is approximately 10 square feet of mold growth. Mold growth in this area was most likely caused by condensation leaks from the pipes and ducts.

2. Women Restroom (45 square feet). There is approximately 30 square feet of suspect http://www.biopreferred.gov/ProposedAndFinalItemDesignations.aspx http://www.wbdg.org/ccb/DOD/UFC/ufc_4_451_10n.pdf http://www.nyc.gov/html/doh/downloads/pdf/epi/epi-mold-guidelines.pdf http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&amp%3Bp_id=10099 http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&amp%3Bp_id=10099 http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&amp%3Bp_id=10099 http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&amp%3Bp_id=10099 https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&amp%3Bp_id=10118 https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&amp%3Bp_id=9787 https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&amp%3Bp_id=10121 http://www.epa.gov/mold/mold_remediation.html http://www.dshs.state.tx.us/mold/rules.shtm http://www.asse.org/professionalaffairs_new/positions/mold.php mold on the surface of the ceiling tiles, ceiling tile metal grid, and air vent. The plenum space above has a moderate amount of debris.

3. Men Restroom (45 square feet). There is approximately 30 square feet of suspect mold on the surface of the ceiling tiles, ceiling tile metal grid, and air vent. The plenum space above has a moderate amount of debris.

4. Room 41- Larvae Room (1,600 square feet). Two ceiling tiles have suspect mold on the surface e that is embedded into the paint and does not easily wipe off. The remainder of the ceiling has a limited amount of suspect mold as it was recently cleaned. The duct also has visible surface mold (at least 25 square feet). In the ceiling plenum space uninsulated piping, approximately 50 linear feet, is covered with slime (microbial) growth, mold, and condensate. The top (plenum side) of the ceiling tile also has large areas of microbial growth, mold, condensate, and debris. Insulated duct in the ceiling plenum space also has visible surface mold growth. In the plenum space, at least 100 square feet will need to be cleaned to remediate the mold. The remainder of the ceiling plenum space has high particulate and debris levels and should be HEPA vacuumed. Mold growth in the ceiling plenum space was most likely caused by condensation leaks from the pipes and ducts.

5. Room 1 Knock Down Room (345 square feet). Apparent mold is imbedded into the paint layer of the ceiling and wall vinyl panels. Mold growth covers most of the ceiling and walls. Mold growth does not appear to be growing on areas of the ceiling and walls where the paint layer was removed from the vinyl paneling by cleaning.

Remove the vinyl ceiling and wall panels and replace with either water proof smooth unpainted vinyl panels or smooth stainless steel panels.

6. Room 3 ERF Room (1,620 square feet). The remainder of the ceiling tile has a limited amount of suspect mold. Outside Room 1 Knok Down, the room has mold on the lower painted cinder block wall (less than 2 square feet). The ceiling plenum space has apparent rodent droppings. The ceiling plenum space was dry. Clean the cinder block wall and metal ceiling tile grid that has mold growth. HEPA vacuum the plenum ceiling space to remove rodent droppings and particulate matter.

7. Boiler Room/Adjacent Corridor (100 linear feet). The condensation drain line should be routed to the floor drain in the boiler room. Water from a second source generated during washing trays in Room 20 Wash Room has also been draining into the corridor adjacent to the boiler room and along the wallboard wall. The lower six inches of this wall was found to be wet and mold was found under the vinyl base cove. A channel to capture and divert water away from the corridor has been cut into the concrete floor but is insufficient to catch all the water that flows from the wash room. Water from the wash room needs to be diverted away from the corridor wallboard wall. Approximately 20 linear feet of wallboard and vinyl base cove needs to be removed from the boiler room to a height of two feet and approximately 20 linear feet of wallboard and vinyl base cove needs to be removed from the corridor wall adjacent to the boiler room to a height of two feet to adequately remediate water damaged and mold impacted wallboard.

8. Room 25 Red Room (3 to 10 square feet). Visible surface mold was observed on two metal ceiling air vents and adjacent ceiling tile. There is approximately 3 square feet of suspect mold on the surface of the ceiling tiles, ceiling tile metal grid, and air vent.

The plenum space above has a small amount of debris.

9. Room 23B Colony Wash Room (6 square feet). Visible surface mold was observed on three ceiling tile. There is approximately 6 square feet of suspect mold on the surface of the ceiling tiles and ceiling tile metal grid. The plenum space above has a low amount of debris. No suspect mold or excess moisture was observed in the ceiling plenum space. If Contractor determines that no mold or fungus is present, FOH recommends HEPA vacuuming the ceiling plenum space. If mold is present, Contractor shall replace.

Note: If water damage or fungal growth is discovered in areas outside the work scope of this project elsewhere in the facility, Contractor shall notify COR, or CO immediately before further action is taken.

Table 1

Room/area (room number)

Affected Materials Estimate of Work Area Removal/replaceme nt actions to bring to restore to as-built condition

Phase 1 Knock Down Room #1 Vinyl panels (textured and painted) on ceiling and walls

• Vinyl panels have embedded mold and cannot be easily cleaned.

• Remove approximately 1000 sf of vinyl panels

Replace removed walls with vinyl panels

Room #3 ERF • Ceiling metal grid with lay-in 2’ x 4’ cement-like ceiling tile panels

• Ceiling plenum space has rodent debris

• Remove and disposed of ceiling tile with visible mold.

Surface clean walls, ceiling grid, air registers and insulated duct piping with visible signs of mold, 45 sf.

Replace ceiling tiles that were removed with like material

Phase 2

Admin hallway/ Room Nos. # 5, 6 & 7

Ceiling metal grid with lay-in 2’ x 4’ cement-like ceiling tile panels

• Remove and disposed of ceiling tile with visible mold.

• Surface clean walls, ceiling grid, air registers and insulated duct piping with visible signs of mold, 100 sf.

• HEPA vacuum plenum space, 800 sf.

Replace ceiling tiles were removed with equivalent material

Women Restroom #37

Ceiling metal grid with lay-in 2’ x 4’ cement-like ceiling tile panels.

• Remove and disposed of ceiling tile with visible mold.

• Surface clean walls, ceiling grid, air registers and insulated duct piping with visible signs of mold, 45 sf.

• HEPA vacuum plenum space, 800 sf.

Replace ceiling tiles were removed with equivalent material.

Men Restroom # 39 Ceiling metal grid with lay-in 2’ x 4’ cement-like ceiling tile panels.

• Remove and disposed of ceiling tile with visible mold.

• Surface clean walls, ceiling grid, air registers and insulated duct piping with visible signs of mold, 45 sf.

• HEPA vacuum plenum space.

Replace ceiling tiles were remove with equivalent material.

Room # 41 • Ceiling metal grid with lay-in 2’ x 4’ cement-like ceiling tile panels

• Metal square duct un-insulated

• Remove and disposed of ceiling tile with visible mold.

• Surface clean walls, ceiling grid, air registers and insulated duct piping with visible signs of mold, 25-100 sf.

• Clean and HEPA vacuum visible mold and microbial growth from plenum space, 200 sf.

• Clean visible mold from metal square duct 40 sf

• Clean visible mold from un-insulated chill water piping 60 lf

• Replace ceiling tiles with equivalent material

• Replace duct insulation with approved material.

• Insulate chill exposed chill water line with phenolic foam pipe type insulation 60

Boiler room and adjacent corridor

Wallboard and vinyl base cove

• Surface clean 350 sf of non-porous washable vinyl wallboard and base cove.

• Surface clean walls, studs ceiling grid and air registers.

• Remove 20 lf of wallboard and vinyl base cove at a height of 2 feet.

• 20 lf of wallboard and vinyl base cove needs to be removed from the corridor wall adjacent to the boiler room to a height of two feet to adequately remediate water damaged and mold impacted wallboard.

Route condensation drains line to floor drain in boiler room.

Room # 25 Red Room

Ceiling metal grid with lay-in 2’ x 4’ cement-like ceiling tile panels

• Remove and disposed of ceiling tile with visible mold.

• Surface clean walls, ceiling grid, air registers and insulated duct piping with visible signs of mold, 25 sf

• Cleaned and HEPA vacuum visible mold and microbial growth from plenum space, 25 sf.

Replace ceiling tiles that were removed with like material.

Room# 23B Colony Wash room

Ceiling metal grid with lay-in 2’ x 4’ cement-like ceiling tile panels

• Remove and disposed of ceiling tile with visible mold.

• Surface clean walls, ceiling grid, air registers and insulated duct piping with visible signs of mold, 25 sf.

• Cleaned and HEPA vacuum visible mold and microbial growth from plenum space, 25 sf.

Replace ceiling tiles that were removed with like material.

***Reference Attachment 2 for a diagram of affected areas requiring remediation and replacement.

VI. SPECIAL SCHEDULING REQUIRMENTS: TBD (KO)

VII. CONTAINMENT CONSTRUCTION

A negative pressure full containment shall be constructed as defined by the EPA, Mold Remediation in School and Commercial Buildings, 402-K-01-001. Complete isolation of remediation area from other areas is required.

Contractor shall use HEPA Filtered Negative Air Machines. In addition to regulatory requirements whichever is more stringent, Contractor shall place two machines inside the containment area(s) during abatement. A unit shall be placed immediately outside the entrance to the contained area(s) to lower the ambient spore count. HEPA negative air machines shall be cleaned prior to mobilizing on site. Seals shall be inspected daily to determine there is no air leakage.

Contractor shall construct containments for the designated work areas per industry standards and governing regulations for the removal of contaminants. The stricter guideline shall be implemented. The containment shall include coverings for internal walls, ceiling, and floor.

Extend the containment above the drop ceiling in order to seal the top of the wall cavity to prevent mold impacted materials disturbed during the remediation from migrating into the plenum air space above the ceiling.

Containment size should allow sufficient room for the Contractor to effectively execute the remediation activities and prevent contamination of adjacent unaffected areas.

Signs advising that a mold remediation project is in progress shall be displayed at all entrances to remediation areas adjacent to occupied areas of the building. The sign shall be a least eight (8) inches by ten (10) inches in size and shall bear the words in English and Spanish: “NOTICE: Mold Remediation in Progress” in black on yellow background. The text of the sign must be legible from a distance of ten (10) feet.”

Seal all penetrations in the containment including the false wall barrier installed between the affected area inside the containment and area outside containment to create critical barriers.

All openings and windows within the contained area must be sealed. Seal HVAC supply and return vents within containments to prevent entrainment of dust and mold spores.

VIII. REMEDIATION PROCESS

Following the completion of the containment and establishment of differential pressure, all activities involving the disturbance of mold-contaminated materials shall be performed following EPA and TDSHS approved remediation methods

Note: EPA Guidelines are recommended practice and do not necessarily take into account factors such as the occupant density of the areas undergoing remediation, overall perception and sensitivity of the workplace, etc. Consequently, the extent of containment desired within the mold remediation work plan will ultimately be based upon professional judgment of the FOH mold consultant representative overseeing each project to determine prudent levels of containment and other measures for each situation, particularly as the remediation site size increases and the potential for exposure to building occupants and health effects increase.

Prior to the start of remediation, containment design and setup must be cleared by the APHIS C O R . Contractor shall demonstrate the appropriate air exchanges and the exhaust stream for containment. Contractor shall establish baseline air samples (internal and external) on the first day of remediation. Sample analysis shall be supported by analytical methods. Contractor shall maintain at least four (4) to six (6) complete air exchanges per hour and a negative pressure of 0.02” w.g. until containment setup is cleared by the COR.

Note: Clearance test results shall show indoor airborne fungal levels below the baseline outdoor fungal level. In general, the results of surface samples shall not be greater than the results of surface samples taken in representative areas from other parts of the building or reference areas. Contractor shall ensure a 48 hour settling period prior to collecting final samples.

Air sampling shall be performed during first day of remediation to ensure containment is effective. Sample analysis should follow analytical methods and interpretation of American Conference Government of Industrial Hygienist or other professional guidelines. Standard shall be based on EPA guidelines.

According to the Environmental Protection Agency (EPA) “Mold Remediation in Schools and Commercial Buildings”, a Large Size Mold Remediation Project is defined as one where the total affected surface area is greater than 100 square feet. A Medium Size Mold

Remediation Project is defined as one where the total affected surface area is less than 100 square feet but greater than 10 square feet. A Small Size Mold Remediation Project is defined as one where the total affected surface area is less than 10 square feet. The amount of mold that has to be remediated is estimated to be well over 100 square feet. Based on the Contractor’s assessment, Contractor shall determine the project size and perform mold remediation per the established procedures outlined by the EPA and the TDSHS. EPA Guidelines for Remediating Building Materials with Mold Growth can be found in Table 2.

Clean and treat all exposed wall cavities following the EPA”s guidelines. Removal shall continue in all directions until all visible mold contamination has been identified and removed.

Remove and replace contaminated material at a minimum of 2-feet beyond the last visible and/or identified mold location in all directions.

Contractor shall use a HEPA vacuum on all walls, ceilings, and flooring throughout the contained area. In addition, surfaces shall be thoroughly wet-wiped with a mild detergent solution (as specified by EPA) at project completion.

IX. PROJECT MONITORING

1. COR in coordination with FOH Mold Assessor shall inspect the containment setup, prior to the start of Contractor remediation work.

2. Project monitoring shall be conducted by the COR and FOH Mold Assessor representative during remediation to ensure contaminants generated within containment do not escape unnecessarily as well as to ensure HEPA filtering devices are properly working to capture and control all released microbial agents.

3. Contractor shall provide continual monitoring and documentation of containment pressure and remediation practices.

4. If unsafe work practices and/or unnecessarily releases from the containment persist or the work procedures followed are not as specified by FOH the COR will require the Contractor to stop work. Work stoppages are at no cost to the Government.

X. REMOVAL and WASTE DISPOSAL

1. All contaminated building materials/components, and other contaminated materials shall be removed to staging area and dumpster. Contractor shall implement methodologies to minimize the release of spores during the removal and disposal process. In addition, Contractor shall mist material with an EPA approved mild detergent or biocide. All materials shall be removed utilizing dustless methods to minimize generation of dust and spore release. The materials (including disposable cloths shall be promptly removed and placed in double 6-mil poly bags. The bags shall be sealed with the use of duct tape and disposed of as contaminated waste.

2. After obtaining visual and air clearances, all remediated exposed wall cavities and surface cleaned ceiling tiles shall be coated with an anti-microbial encapsulate such as Fosters 40-20 or equivalent.

3. Inside the containment, all interior poly walls and contaminated building materials/components a n d cavities, shall be wetted with a mild detergent solution or EPA approved biocide and damp wiped with disposable absorbent towels or similar disposable materials.

4. Remove all visible debris from the containment area. The entire containment area must be HEPA-vacuumed followed by wet wiping with disposable absorbent towels or similar disposable materials, from ceiling to floor using a mild detergent solution

a. Towels used for the wipe down shall be changed frequently to prevent spreading of spores. Repeat the process again prior to asking for the final visual inspection.

This shall include wet wiping of the ceiling grid system.

b. Disposable materials shall be promptly removed and placed in double 6 mil poly bags or wrapped with double layers of poly sealed with the use of duct tape and disposed of as contaminated waste.

5. Before any isolation barriers are removed, the containment must meet visual and air testing clearances. Contractor should allow a settling period of at least 24 hours prior to obtaining clearance samples.

a. Air clearance results should show indoor airborne fungal levels below the average outdoor fungal level with similar fungal genera inside containment with respect to outdoors and non-complaint areas. The FOH Mold Assessor representative and C O R will have final authority on whether containments pass clearance and can be dismantled.

b. Since there are no numerical guidelines established for acceptable mold levels;

final determination of acceptable clearance results will be based upon the professional judgment of a qualified FOH Mold Assessor. If the FOH Mold Assessor deems the sampling results do not meet clearance, additional cleaning of the containment area as well as testing may be required.

c. The additional removal of building materials may be required to expose hidden mold if air levels remain unstable. The decision to pursue this course of action will be based upon a review of all aspects of the area under containment including occupancy, size, possible outdoor influences, types and concentration of fungi inside containment compared to the outside levels, etc.

6. Contractor shall “build back” areas impacted by the remediation upon written clearance from the FOH or COR.

7. Table 2 identifies recommended practices and does not necessarily take into account factors such as the occupant density of the areas undergoing remediation, overall perception and sensitivity of the workplace, etc. Consequently, the extent of containment desired within the mold remediation work plan will ultimately be based upon professional judgment of the FOH mold consultant representative overseeing the project to determine prudent levels of containment and other measures required to limit the potential exposure to building occupants.

TABLE 2

Guidelines for Remediating Building Materials with Mold Growth Caused by Clean Water*

Material or Furnishing Affected

Cleanup Methods†

Personal Protective Equipment

Containment

SMALL - Total Surface Area Affected Less Than 10 square feet (ft2

Books and papers 3 Minimum

N-95 respirator, gloves, and goggles

None required

Carpet and backing 1, 3

Concrete or cinder block 1, 3

Hard surface, porous flooring (linoleum, ceramic tile, vinyl)

1, 2, 3

Non-porous, hard surfaces (plastics, metals)

1, 2, 3

Upholstered furniture & drapes

1, 3

Wallboard (drywall and gypsum board)

Wood surfaces 1, 2, 3

MEDIUM - Total Surface Area Affected Between 10 and 100 (ft2

Books and papers 3 Limited or Full

Use professional judgment.

Consider potential for remediator exposure and size of contaminated area

Limited

Use professional judgment, consider potential for remediator/occupant exposure and size of contaminatedarea

Carpet and backing 1,3,4

Concrete or cinder block 1,3

Hard surface, porous flooring (linoleum, ceramic tile, vinyl)

1,2,3

Non-porous, hard surfaces (plastics, metals)

1,2,3

Upholstered furniture & drapes

1,3,4

Wallboard (drywall and gypsum board)

3,4

Wood surfaces 1,2,3

LARGE - Total Surface Area Affected Greater Than 100 (ft2 or Potential for Increased Occupant or

Remediator Exposure During Remediation Estimated to be Significant

Books and papers 3 Full

Full

Carpet and backing 1,3,4

Concrete or cinder block 1,3

Hard surface, porous flooring (linoleum, ceramic tile, vinyl)

1,2,3,4 remediator/occupant exposure and size of contaminatedarea remediator exposure and size of contaminated area

Non-porous, hard surfaces (plastics, metals)

1,2,3

Upholstered furniture & drapes

1,2,4

Wallboard (drywall and gypsum board)

3,4

Wood surfaces 1,2,3,4 http://www.epa.gov/mold/mold_remediation.html

XI. CONTACT PERSONS

1. APHIS Contracting

Officer Martha Garza USDA, APHIS, MRPBS, Specialized Contracting

22675 N. Moorefield Rd.

Moore Air Base, Bldg 6407 Edinburg, TX 78541 Office Phone: 956-205-7604 E-Mail: Martha.E.Garza@aphis.usda.gov

2. APHIS Environmental Protection Specialist/Contracting Officer Representative

(COR)

Daniel Z. Weissman Environmental Program Manager

USDA, APHIS, EMSSD, SHEPB

4700 River Road, Unit 124 Riverdale, MD 20737-1238

Tel. No.: (301) 436-3114 Fax No.: (301) 734-7828 Cell No.: (301) 537-1774 Email: Daniel.Z.Weissman@aphis.usda.gov http://www.epa.gov/mold/mold_remediation.html mailto:Martha.E.Garza@aphis.usda.gov mailto:Daniel.Z.Weissman@aphis.usda.gov

3. APHIS Facility Manager (FM) Kirk F. Richardson USDA, APHIS, PPQ – Moore Air Base 22675 North Moorefield Road, Bldg.

Edinburg, TX 78541 Tel. No.: (956) 205-7602 Cell No.: (956) 458-7272 Fax No.: (956) 580-7325 Email: Kirk.F. Richardson@aphis.usda.gov

4. APHIS PPQ National Facility Manager (NFM) Wendell L. Leonard USDA APHIS PPQ – Riverdale Room 5C-03f 4700 River Road, Unit 30 Riverdale, MD 20737 Tel. No.: (301) 851-2648 Fax No.: (301) 734 4846 Cell No.: (301) 221-1074 Email: Wendell.L.Leonard@aphis.usda.gov

5. PPQ FO Safety Officer/ Designated Safety Representative (DSR)

Gerald L Campbell USDA, APHIS, PPQ-FO Safety & Occupational Health Program Manager 920 Main Campus Dr., Suite 200 Raleigh NC, 27606, Tel. No.: (919) 855 7308 Cell No.: (919) 637-2210 Fax No.: (919) 855-7762 Email: Gerald.L.Campbell@aphis.usda.gov

6. Federal Occupational Health Inspector

TBD

7. APHIS ERF Managers

Ruben R. Guerra Texas Plant Protection and Quarantine Area Manager

USDA-APHIS-PPQ

903 San Jacinto Blvd. Suite 270 Austin, Texas 78701 Tel. No.: (512) 916-5241 Fax No.: (512) 916-5243 Cell No.: (512) 925-8078 Email: Ruben.R.Guerra@aphis.usda.gov

Kristy Gottfried Lead Entomologist, Mexfly Rearing Facility USDA, APHIS, PPQ – Edinburg 22675 North Moorefield Road, Bldg. 6418 mailto:Kirk.F.%20Richardson@aphis.usda.gov mailto:Wendell.L.Leonard@aphis.usda.gov mailto:Gerald.L.Campbell@aphis.usda.gov mailto:Ruben.R.Guerra@aphis.usda.gov

Edinburg, TX 78541 Tel. No.: (956) 205-7686 Cell No.: (956) 270-9869 Fax No.: (956) 580-7691 Email: Kristy.L.Gottfried@aphis.usda.gov

8. APHIS Safety, Health, and Environmental Staff Gerald Houvener Industrial Hygienist Program Manager

USDA, APHIS, MRPBS, EMSSD, SHEPB

Room 2A-02.49 4700 River Road, Unit 124 Riverdale, MD 20737-1238 Tel. No.: (301) 436-3150 Fax No.: (301) 734-7828 Cell No.: (240) 464-2009 Email: Gerald.Houvener@aphis.usda.gov

9. APHIS Safety Officer (Local) Daniel Buentello USDA, APHIS, PPQ – Moore Air Base 2675 North Moorefield Road, Bldg. 6407 Edinburg, TX 78541 Tel. No.: (956) 205-7601 Cell No.: (956) 240-6462 Fax No.: (956) 580-7631 Email: Daniel.Buentello@aphis.usda.gov

XII. PROJECT REQUIREMENTS

1. Fee Proposal: Based upon this SOW, the Contractor shall prepare an itemized fee proposal and schedule for services required to complete this project.

Field Investigation and Site Survey: The Contractor shall coordinate with the COR and inform the CO of all scheduled site investigations. Contractor shall investigate proposed remediation site to ascertain site conditions prior to remediation including interviewing the User to…