P09 629-27-5001 SOW Final.docx

Department of Veterans Affairs Southeast Louisiana Veterans Health Care System (SLVHCS) VA Medical Center 2400 Canal Street New Orleans, LA 70119

PERFORMANCE WORK STATEMENT OF WORK (SOW)

Project Title: St. John CBOC Water Infiltration Investigation/Assessment Project Number: 629-27-5001 Project Location: 4004 W Airline Hwy, Reserve, LA 70084

August 25, 2026

1. General Information

1.1. The Southeast Louisiana Veterans Health Care System (SLVHCS) requires professional building-envelope investigation and environmental assessment of the St John CBOC facility to obtain a technically supported assessment of the facility’s moisture infiltration conditions.

1.2. The contractor shall perform a building‑envelope and interior moisture infiltration investigation covering exterior walls, roof/roof‑to‑wall interfaces, canopies, penetrations, fenestration, and representative interior spaces.

2. Background

2.1. The facility is a modular steel‑framed building with an EPDM roof and exterior stucco finish, constructed in 2008, comprising approximately 9,837 Gross Square Feet (GSF). The structure includes two exterior canopies installed after the original building construction.

2.2. A recent construction project (629-25-103 Emergency St. John Roof Replacement & Interior Mitigation) was completed (July 2026) which included installation of a new EPDM roof system over the main facility and included moisture remediation and renovation of several interior spaces.

2.3. Prior limited survey findings (June 30–July 14, 2026) identified moisture intrusion and mold indicators at multiple areas—including Room 102 (west/exterior wall cavity with visible mold; Chaetomium detected), Room 139 (above drop ceiling; elevated Penicillium/Aspergillus in air and swab), Room 111 (elevated moisture above ceiling; suspect growth), and Room 100 (vestibule) with above-ceiling concerns—as well as canopy-to-wall drainage/design deficiencies contributing to water entry.

2.4. Work affecting occupied healthcare areas shall employ proportionate barrier and negative‑air controls consistent with risk and the investigative scope

3. Objective:

3.1. Conduct a comprehensive, phased environmental assessment of the St. John CBOC facility with destructive verification (core drilling, strategic panel/wall‑cover removal). Destructive test methods utilized must be approved by the Contracting Officer (CO).

3.2. Conduct a comprehensive, phased environmental assessment of the St. John CBOC facility to identify, characterize, and document moisture intrusion, mold, and other biological growths across the building envelope and interior areas, including above-ceiling spaces and wall cavities, with destructive verification (core drilling, strategic panel/wall-cover removal). A Destructive Testing Plan (locations/methods) shall be submitted and preapproved by the Contracting Officer (CO) prior to execution; individual openings may proceed under the approved plan

4. Scope:

4.1. The contractor shall provide all labor, supervision, professional services, equipment, testing instruments, materials incidental to the investigation, documentation, analysis and reporting necessary to complete work.

4.2. Areas of investigation include entire building envelope (canopies, gutters/downspouts, wall systems, vapor barriers, penetrations, window/door flashings), above-ceiling spaces throughout clinical areas, Interior walls (with coverings and panels), wall cavities, and floor/wall/ceiling interfaces across the clinic, including vestibules, storage, electrical/mechanical, restrooms, exam rooms, corridors.

4.3. The Contractor shall immediately notify the VA Contracting Officer (CO) and Contracting Officer Representative (COR) of immediate unsafe conditions.

4.4. The assessment shall include:

4.4.1.1. Review of existing documents (as-builts, warranty, inspections), visual/exterior wall inspections, roof and roof-edge inspections, EPDM system interface inspection, canopy inspection, penetrations and fenestration inspections, interior inspections, moisture testing, water-infiltration testing, infrared investigation, selective destructive investigation, damage assessment, source/pathway analysis, structural analysis.

4.4.2. Where structural concerns are indicated, recommend scope for professional structural evaluation and submit a cost estimate.

4.4.3. Confirm extent and sources of moisture and biological growths across the facility, building envelope interfaces, and interior assemblies.

4.4.4. Perform intrusive/destructive testing to verify hidden conditions behind wall coverings/panels and within wall/ceiling cavities—executed under engineered containment to prevent cross-contamination per EPA/IICRC guidance.

4.4.5. Implement phased work sequencing to isolate areas, protect any occupied zones, and prevent spore spread to clean areas.

4.4.6. Investigate areas beyond the visible damage when necessary to determine the source and pathway of water infiltration and assess concealed moisture‑related damage and potential structural implications.

4.4.7. Determine and document the source of water infiltration; points of entry and pathways through the building envelope; the extent of moisture‑related damage; the condition and weatherproofing performance of the exterior wall assembly; the condition of exterior finishes, structural components, canopy structures, and canopy‑to‑building connections; the condition of building openings and envelope transitions including flashing; the condition of windows and doors, the condition of interior spaces. Where professional structural evaluation is warranted, identify the requirement and provide a separate cost estimate.

4.4.8. Inspect the performance of the recently installed roof system and all related interface conditions for potential water‑infiltration or drainage issues. Coordinate any intrusive work with the roof warranty requirements prior to testing.

4.4.9. Assess the adequacy of the exterior wall assembly for Weatherproofing: Determine whether the existing wall assembly’s design, materials, interfaces, transitions, flashing, drainage provisions, and weather‑resistive barriers are appropriate and properly integrated to provide a continuous, weather‑resistant enclosure.

4.4.10. Assess the adequacy of the exterior canopy assemblies by determining whether their design, materials, interfaces, transitions, flashing, and drainage provisions are appropriate and properly integrated to provide a continuous weather‑resistant enclosure.

4.4.11. Identify deficiencies that are attributable to design, material selection, construction, deterioration, maintenance, incompatible materials, improper interfaces, and other conditions.

4.5. Major Tasks

4.5.1. Project Planning & Phasing Plan (containment zoning; security plan; infection-control-like barrier protocols; work sequencing by risk).

4.5.2. Visual & Instrumental Survey (moisture mapping, IR thermography, pin/probe moisture measurements, borescope).

4.5.3. Air, Surface, and Bulk Sampling (inside/outside comparative strategy per EPA/AIHA guidance; lab analysis with chain-of-custody).

4.5.4. Destructive Verification (core drilling and targeted panel/wall-cover removals) under engineered containment with HEPA negative air to prevent spore spread.

4.5.5. Root-Cause Analysis (envelope details at canopy ties, drainage paths, vapor barrier discontinuities, flashing defects).

4.5.6. Risk & Corrective Remediation Recommendations: All corrective recommendations shall follow the requirements and procedures established by governing standards and regulations: U.S. EPA guidance for environmental and site-contamination remediation, ANSI/IICRC 5520 Standards for Professional Mold Remediation for condition classification, containment, clean methods, and post -remediation verification (PRV), applicable OSHA worker-safety requirements for remediation operations (respiratory protection, hazard control, safe work practices).

4.5.6.1. Provide a remediation design basis: actionable recommendations aligned to current industry guidance (EPA, ANSI/IICRC S520-2024, OSHA, AIHA/ACGIH).

4.5.7. The Contractor shall prevent water intrusion through all investigation openings. Test openings shall be temporarily weatherproofed at the conclusion of each work period. Restoration of Intrusive Openings (temporary and final repairs of sampling cuts/cores) without compromising clinic security. Temporary materials shall be compatible with existing finishes and water-resistive barriers.

4.5.8. The Contractor shall provide a comprehensive final report of findings, risk and corrective remediation recommendations, cost estimates for each recommendation. The report shall include: methodology; baseline survey and non‑destructive diagnostics; visual inspection; moisture readings; test results (water testing, air/surface sampling, destructive testing); photographic documentation (with photo IDs, location, date, description and plan references); mark‑up plans/elevations showing source/pathway analysis, inspection and test locations, damage locations, and corrective recommendation repair locations.

4.5.8.1. The final report shall provide a separate conclusion regarding the adequacy of the existing exterior wall assembly and canopy assemblies.

4.5.8.2. Provide a corrective remediation design basis: actionable recommendations aligned to current industry guidance (EPA, ANSI/IICRC S520-2024, OSHA, AIHA/ACGIH).

4.5.8.3. Corrective remediation recommendations for repairs and cost estimates: Classify each repair as: Priority 1 (immediate), Priority 2 ( near term), Priority 3 ( planned maintenance )

4.5.8.3.1. Estimates should identify quantities and unit measures where practical; logical lump‑sum groupings are acceptable with justification. The Contracting Officer may request breakout detail for evaluation.

4.5.8.4. Marked-up plans/elevations. Source/pathway analysis. Damage assessment. Structural observations. EPDM evaluation. Canopy evaluation. Modular-joint evaluation. Repair recommendations. Repair cost estimates. Additional investigation costs. Repair priorities. Assumptions. Limitations.

5. Period of Performance and Working Hours

5.1. Period of performance is 30 calendar days from notice to proceed.

5.2. Normal duty hours are 7:30 a.m.–4:00 p.m., Monday–Friday, including Federal holidays.

5.3. Off‑hours, weekend work and federal holidays may be authorized by the COR to maximize completion time; seven (7) calendar-day advance requests required.

6. Schedule & Phasing Constraints

6.1. Coordinate off-hours work in clinical zones; maintain patient/operational safety.

6.2. Phased area closures with barrier integrity and negative pressure verification prior to intrusive work each day, consistent with EPA/IICRC containment planning.

6.3. Utilities: any planned service interruptions require VA approval and seven (7) calendar-day advance notice (Section 11.3).

7. Applicable References

7.1. EPA Mold Remediation in Schools & Commercial Buildings (EPA 402‑K‑01‑001); ANSI/IICRC S520‑2024 (Standard for Professional Mold Remediation); OSHA mold guidance; AIHA/ACGIH resources on bioaerosols/sampling strategy.

8. Definitions

8.1. Destructive Testing: Controlled intrusive techniques (e.g., core drilling, panel/wall-cover cut-outs) to access concealed assemblies (wall cavities, vapor barriers, sheathing interfaces), performed inside engineered containments under negative pressure with HEPA filtration to prevent spore dissemination.

8.2. Containment Zones: Work areas categorized (e.g., Level 2/3 containments) with poly barriers, airlocks, sticky mats, HEPA negative air (ACH as feasible), and controlled egress, in accordance with EPA/IICRC guidance.

9. Contractor Qualifications

9.1. Industrial Hygienist/IEP. At least five (5) years in mold/moisture investigations; familiar with EPA/ANSI/IICRC/OSHA/AIHA guidance. Certified.

9.2. Certified sampling technicians (trained on chain-of-custody and accredited lab submission per AIHA).

9.3. Laboratory services. Certified/accredited laboratory through (ISO Certified, American Industrial Hygiene Association’s Laboratory Accreditation)

9.4. Manager/Lead. At least four (4) years of experience on managing/leading projects involving environmental assessments in healthcare/laboratory facilities

9.5. Mechanical/Plumbing Engineer. At least four (4) years of engineering experience associated with healthcare facilities and/or prefabricated structures. Experience includes building/room air balancing and drainage/gutter design and modifications for roofing/canopy structures.

9.6. Structural Engineer. At least four (4) years of engineering experience associated with prefabricated facilities and structures.

9.7. Roofing/Canopy Engineer/Specialist. At least four (4) years of engineering or manufacturing experience associated with healthcare facilities and/or prefabricated structures including standalone or canopy additions to existing structures.

9.8. Building Exterior/Envelope Expert (Stucco, etc). At least four (4) years of application, installation and repair experience associated with prefabricated buildings and/or stucco and similar envelope applications.

10. Health & Safety / Infection Control

10.1. Site-specific HASP: hazard analysis, PPE matrix (minimum N-95/half-face elastomeric with P100 for intrusive work), eye/hand protection, decontamination procedures, mold exposure controls; comply with OSHA guidance.

10.2. Work in healthcare spaces shall follow an ICRA-style approach: staging, noise control, interim life safety, and barrier integrity checks proportionate to assessment risks and area occupancy.

11. Security, Occupancy, Utilities & Environmental Controls (Integrated per VA direction)

11.1. Building Occupancy & Work Planning

11.1.1. VA will identify occupied zones and schedule coordination windows. Contractor shall plan to minimize disruption to any occupied area Contractor shall assume the building will be at least 80% unoccupied during assessment and destructive testing activities

11.1.2. Despite reduced occupancy, Contractor shall strictly protect any occupied or partially occupied areas to prevent disruption to clinical operations.

11.2. Clinical Security & Safety

11.2.1. Access & Badging: Notify COR for project escorting prior to arrival; check in/out with VA Police daily or as otherwise indicated by COR; wear visible badges at all times.

11.2.2. Policies: Follow all VA policies, Standards of Operation

11.2.3. Licenses/Permits: Obtain all necessary licenses/permits to perform work

11.2.4. Contractor Parking: Limited on-site contractor parking (10 spaces) may be identified

11.2.5. Prohibitions:

11.2.5.1. No smoking on person or in vehicles

11.2.5.2. No weapons on person or in vehicles

11.2.6. Work activities shall not compromise building security at any time. Requirements include: all exterior doors/access points/egress paths remain secured; temporary penetrations shall not create bypasses or unsecured pathways; barriers and airlocks secured after hours; tools/equipment and removed finishes secured daily.

11.2.6.1. For intrusive openings, provide temporary secure closures at the end of each shift (security plates, tamper‑resistant fasteners) to prevent bypasses.

11.3. Utility Coordination

11.3.1. Any work requiring utility interruption (power, HVAC, water, fire alarm interfaces, communications cabling) must be requested, coordinated, and approved by the VA and scheduled no fewer than 5 calendar days in advance.

11.3.2. Utility disruptions shall be planned so that critical clinical/admin operations are not impacted, and life safety systems remain functional unless a VA approved impairment plan is implemented.

11.3.3. Environmental Controls (Humidity, Moisture, Containment, HVAC)

11.3.3.1. Contractor shall actively prevent spread of biological growths and control environmental conditions that promote them during all phases

11.3.3.2. Maintain indoor RH below 60% (target 30–50%) in work zones. Contractor shall propose means/methods (portable dehumidification/HVAC adjustments/air scrubbers) appropriate to the areas under containment.

11.3.3.3. Moisture Control: Prevent introduction of free water from work activities; if minimal water is required (e.g., dust suppression), control and document use.

11.3.3.4. Containment & Negative Air: Maintain negative pressure in intrusive work areas using HEPA-filtered devices and sealed barriers to prevent migration of spores to adjacent areas, consistent with EPA and ANSI/IICRC containment practices.

11.3.3.5. HVAC Controls: HVAC serving work zones shall be isolated or capped where feasible to prevent cross-zone air movement; no changes to HVAC isolation or settings without VA coordination, consistent with occupational protection principles.

11.4. Daily Environmental & Security Monitoring

11.4.1. Contractor shall measure, record, and submit daily logs for: RH, temperature, pressure differential, and moisture readings (as applicable).

11.4.2. Any excursions outside acceptable ranges shall be corrected immediately and documented.

11.4.3. At day’s end, Contractor shall verify security barriers, containment integrity, and operation of environmental control equipment, retaining negative air overnight where required.

12. Methodology (Phased to Prevent Cross-Contamination)

12.1. Phase 0 – Mobilization & Planning

12.1.1. Kickoff, phasing & containment plan, security plan, stakeholder communications, and occupant protection strategy (work-hour coordination, temporary relocations when needed), per EPA recommendations to plan remediation before starting work.

12.2. Phase 1 – Baseline Survey & Non-Destructive Diagnostics

12.2.1. Visual inspection (document staining, suspect growth, odors), IR thermography, moisture metering following manufacturer guidance

12.2.1.1. Record substrate type and meter scale; interpret against manufacturer documentation and comparative baselines.

12.3. Phase 2 – Containment Setup

12.3.1. Establish containment zones (poly sheeting, HEPA negative air, pressure monitoring), airlocks, waste pass-throughs, and sticky mats. Isolate HVAC serving work areas where feasible. Follow EPA & ANSI/IICRC containment/PPE recommendations.

12.4. Phase 3 – Destructive Testing (Core Drilling & Targeted Removals)

12.4.1. Intrusive openings at prioritized locations (canopy‑to‑wall seams, trim‑covered joints, suspect vapor‑barrier discontinuities; targeted interiors)

12.4.2. All interior rooms cavity verification, moisture check, and sampling.

12.4.2.1. Maintain negative pressure; local HEPA source capture; minimal mist suppression compatible with lab sampling. Bag and seal materials for lab.

12.5. Phase 4 – Sampling & Analysis

12.5.1. Air sampling: indoor targeted zones and outdoors for comparison; interpret indoor/outdoor patterns (no regulatory limits; focus on indicator taxa/amplification evidence

12.5.2. Surface sampling: swabs/tape lifts on visible suspect growth, cavity-exposed material; bulk from cores. Chain-of-custody to AIHA-accredited lab

12.5.3. Moisture readings: Moisture readings: record % or qualitative indicator; photograph/geolocate readings

12.5.4. Readings and sampling must occur in the following areas

12.5.4.1. Contractor shall submit a sampling plan consistent with AIHA/ACGIH guidance: include outdoor controls, per‑wing/zone indoor samples, targeted rooms with suspect growth, and above‑ceiling/cavity samples in affected areas. Minimums shall be risk‑based and approved by the COR

12.6. Phase 5 – Source & Pathway Analysis

12.6.1. Evaluate envelope design deficiencies (gutters/leaders, canopy ties, stucco seams, vapor‑barrier continuity) and HVAC contributions (condensate, supply/return locations, room/building pressurization)

12.7. Phase 6 – Reporting & Risk and Corrective Remediation Recommendations Basis

12.7.1. Provide Final Assessment Report with: floor plans, photo logs, containment maps, moisture grids, sampling locations/results, lab reports, interpretive analysis.

12.7.2. Provide Corrective Remediation Plan & Specifications: containment levels, removal limits, cleaning protocols, HVAC component remediation if impacted, and verification criteria.

13. Deliverables

13.1. Project Execution Plan (phasing, containment, security plan, HASP, schedule).

13.2. Daily Field Logs (activities, containments, RH/Temp/∆P readings, PPE, anomalies).

13.3. Photo & Video Documentation (pre/during/post).

13.4. Sampling Plan & Chain-of-Custody; Accredited Lab Reports.

13.5. Assessment Report & Risk and Corrective Remediation Recommendation Plan with prior findings integrated.

13.6. Verification Protocol applicable to remediation contractor (criteria, sampling strategy)

13.7. Temporary & Final Restoration details for intrusive openings (no security compromise).

14. Submittals & Reviews

14.1. Pre-Work Submittals: HASP, containment drawings, security plan, sampling matrix, lab accreditation, equipment calibration certificates (air pump flow checks).

14.2. Interim Submittals: daily logs; interim findings memos if urgent conditions arise

14.3. Final Submittals: Assessment Report, Risk and Corrective Remediation Recommendations Plan, updated as-builts of intrusive locations.

15. Quality Assurance / Quality Control

15.1. Instrument calibration (air pumps, flow verification; moisture meter checks per manufacturer.

15.2. Duplicate/collocated samples at ≥10% rate; field blanks as appropriate.

15.3. Independent IEP review of data interpretation following comparative/contextual principles (no threshold-based pass/fail).

15.4. Contracting Officers’ Representative (COR) Oversight: VA COR will monitor compliance throughout the contract period

15.4.1. If field direction appears to conflict with contract terms, contractor shall elevate to the Contracting Officer for written resolution prior to proceeding.

15.5. Contractor shall maintain Quality Control (QC) per the approved Quality Control Plan.

16. Waste Handling & Restoration

16.1. Bag/seal demo debris within containment; stage in negative area; remove via controlled egress.

16.2. Dispose per local/state requirements for mold-impacted building materials

16.3. Temporarily restore penetrations; final repair (finish matching) after results are accepted—ensure no security bypass remains.

17. Acceptance Criteria

17.1. Complete data package with defensible interpretation and clear corrective recommendations aligned to applicable guidance.

17.2. Clearly identified moisture sources and envelope/HVAC deficiencies with recommended corrective actions; incorporate prior survey and architectural findings.

18. Assumptions & Constraints

18.1. No universal regulatory thresholds for indoor mold levels—interpretations rely on comparative indoor/outdoor data, indicator taxa, and building-specific context (EPA notes no regulated indoor limits; focus is on moisture control and remediation effectiveness).

18.2. Work planning shall be coordinated to maintain operations in any occupied area; schedule phasing to be approved by CO and COR.

18.3. Any utility disruptions require seven (7) calendar days advance coordination and VA approval

19. References

19.1. EPA – Mold Remediation in Schools & Commercial Buildings (EPA 402-K-01-001; last updated Jan 14, 2026).

19.2. ANSI/IICRC S520-2024 (4th Ed.) – Standard for Professional Mold Remediation.

19.3. OSHA – A Brief Guide to Mold in the Workplace; Mold Topic Pages.

19.4. AIHA/ACGIH – Bioaerosols: Assessment & Control; Mold Resource Center.

19.5. Prior VA CBOC Limited Survey Reports & Architect Field Report

20. List of Attachments

20.1. Attachment 1: St John Floor Plan Room Names & Numbers

20.2. Attachment 2: St John Floor Plan Dimensions

20.3. Attachment 3: St John Corridor SQFT

20.4. Attachment 4: St John Existing Construction Drawings 09-27-2007

20.5. Attachment 5: St John Existing Construction Drawings 11-01-2007

20.6. Attachment 6: Project 629-25-103 St John Construction Submittal Roof System 04-14-2026

20.7. Attachment 7: Project 629-25-103 St John Construction Mold Assessment Report 10-21-2025

20.8. Attachment 8: Project 629-25-103 St John Construction Architects Field Report 06-30-2027

20.9. Note: Existing facility drawings (CAD files) and As Built drawings of project 629-25-103, Emergency St. John Roof Replacement & Interior Mitigation, will be provided to the awarded contractor.

21. APPENDIX A – ROOMS (Reference Only)

21.1. APPENDIX A – Rooms Potentially Impacted (Reference for investigative planning only)

21.1.1. North Elevation: 136 (Exam Room #5), 122 (Nurse Station #1), 118 (Patient Advocate), 116 (Forms / Fax), 114 (Check In/Out #4), 110 (Check In/Out #2), 108 (Check In/Out #1) , 140 (Physician Work Room), 142 (Waiting Area), 120A (Medication Room), 120B(Medication Room), 138 (Nurse Station #2), 130 (Exam Room #17), 126 (Dietitian), 124 (Exam Room #7 ). Excluded: 128, 132, 134

21.1.2. East Elevation: 160 (Receptionist), 102 (Entry), 100 (Vestibule), 135 (Exam Room #8), 121 (Clean Utility / Linen), 131 (Social Worker), 119 (Group / Conference #2), 117 (Group / Conference #1), 143 (Secretary), 137 (Mail / Copy / Fax), 129 (Training / Break Room ). Excluded: 141 (Admin Officer).

21.1.3. South Elevation: 139 (General / Medical Storage), 125 (Women’s Restroom), 123 (Women’s Restroom), 113 (Telephone), 107 (Perimeter Support Room), 111 (Electrical Room), 145 (Exam Purpose / Pass‑Thru), 104 (Purpose Exam / Specimen Storage), 120 (Specimen Storage), 106 (Vending Machines). Excluded: 115 (HAC Closet).

21.1.4. West Elevation: 144 (exam Room #6), 48 (Nurse Station #3), 150 (Soiled Utilities), 152 (Stretcher W.C.), 154 (Counseling Office #3), 156 (Counseling Office #2), 158 (Counseling Office #1), 160 (Pharmacy Consultation), 133 (Clean Utility / Linen), 109 (Maintenance / Biomedical), 105 (Men’s Restroom)

22. APPENDIX B – Example Containment & Destructive Testing Protocol:

22.1. Barrier build with sealed seams; airlock and anteroom.

22.2. HEPA negative‑air device sized for area; verify pressure differential; document daily.

22.3. Cover adjacent finishes; isolate local HVAC.

22.4. Cut/drill with source capture; collect bulk samples; seal openings.

22.5. HEPA vacuum & damp wipe (as appropriate); bag waste; barrier inspection.

22.6. Protocol is illustrative and shall be tailored to investigative scope; final methods require CO approval via the Destructive Testing Plan

23. Appendix C: Example Sampling Matrix:

23.1. Air (Spore Traps): Outdoors (2), per wing (≥4), targeted rooms (≥4 each), above-ceiling (≥2 per zone).

23.2. Surface (Swab/Tape): Visible suspect areas (sheetrock facers, above-ceiling), cavity samples after openings.

23.3. Bulk: From core openings (paper facer, insulation, sheathing), especially at envelope seams and canopy ties.

23.4. Method Notes: Typical pump setting ~15 LPM for ~10 minutes per cassette; apply chain-of-custody to an AIHA-accredited lab for analysis.

23.5. Appendix B — Example Containment & Destructive Testing Protocol

23.6. Barrier build with sealed seams; airlock and anteroom.

23.7. HEPA negative air device sized for area; verify pressure differential; document daily.

23.8. Cover adjacent finishes; isolate local HVAC.

23.9. Cut/Drill slowly with HEPA source capture; collect bulk samples; seal openings.

23.10. HEPA vacuum & damp wipe (as appropriate); bag waste; barrier inspection. Follow EPA/IICRC guidance for containment and cleanup.