Specification_Rodent Droppings Remediation.pdf

SECTION TABLE OF CONTENTS

DIVISION 02 - EXISTING CONDITIONS

RODENT DROPPINGS REMEDIATION

12/17

PART 1 GENERAL

1.1 REFERENCES

1.2 DEFINITIONS

1.2.1 Biohazard Remediation Supervisor

1.2.2 Containment

1.2.2.1 Source Containment

1.2.2.2 Limited Containment

1.2.2.3 Full Containment

1.2.2.4 Unoccupied Building Containment

1.2.2.5 Cleaning Containment

1.2.3 Decontamination Area

1.2.4 Detergent

1.2.5 Disinfectants

1.2.6 EPA

1.2.7 HEPA Filter

1.2.8 Non-Porous Material

1.2.9 Occupied Spaces (Areas)

1.2.10 Personal Protective Equipment (PPE)

1.2.11 Poly

1.2.12 Porous Material

1.2.13 Sanitizer

1.2.14 Semi-porous Material

1.2.15 Work Area

1.3 REQUIREMENTS

1.3.1 Description of Work

1.3.2 Security Requirements

1.4 SUBMITTALS

1.4.1 Preconstruction Submittals

1.4.1.1 Rodent Droppings Remediation Plan

1.4.1.2 Respiratory Protection Program

1.4.1.3 Worker Records

1.4.1.4 Biohazard Remediation Supervisor Qualifications

1.4.2 Product Data

1.4.3 Submittals at Completion of Remediation Work

1.5 RECORD KEEPING

1.5.1 Daily Log

PART 2 PRODUCTS

2.1 DISINFECTANTS AND SANITIZERS, (EPA)

PART 3 EXECUTION

3.1 EQUIPMENT

3.1.1 Respirators

3.1.2 Protective Clothing

3.1.3 Warning Signs and Labels

3.1.4 Vacuum Cleaners Equipped with HEPA Filters

3.2 GENERAL REQUIREMENTS

3.2.1 Pre-Rodent Dropping Remediation Work Conference

3.2.2 Containment Entry / Exit Procedure

3.3 REMOVAL PROCEDURES

3.3.1 Protection of Existing Work Areas

3.3.2 Remediation of Rodent Dropping Contaminated Building Materials

3.3.3 Remediation Procedures

3.3.3.1 Cleaning/Disinfection/Sanitizing of Non-Porous Materials

3.3.3.2 Cleaning/Disinfection/Sanitizing of Semi-Porous Materials

3.3.3.3 Removal of Porous Materials

3.4 DETAILED SEQUENCE OF WORK FOR RODENT DROPPINGS AND CONTAMINATED

MATERIALS REMOVAL UNDER CONTAINMENT

3.4.1 Preparation for Remediation Work

3.4.2 Rodent Dropping Remediation

3.4.3 Post-Remediation Inspection

3.4.4 Cleaning/Disinfection/Sanitizing after Remediation

3.5 FIRE PROTECTION

3.6 CONSTRUCTION BARRIERS

3.7 QUALITY ASSURANCE / QUALITY CONTROL REQUIREMENTS

3.7.1 Contractor Qualifications

3.7.2 Waste Management and Removal

3.7.3 Post-Remediation Inspection

3.7.3.1 Clearance

3.8 CLEAN-UP AND DISPOSAL

3.8.1 Disposal of Material

3.8.2 Material Packaging

3.8.3 Hazardous Material

3.9 APPENDICES

-- End of Section Table of Contents --

DIVISION 02

RODENT DROPPINGS REMEDIATION

12/17

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN SOCIETY OF SANITARY ENGINEERING (ASSE)

ASSE Z9.2 (2012) Fundamentals Governing the Design and Operation of Local Exhaust Ventilation Systems

INSTITUTE OF INSPECTION, CLEANING, AND RESTORATION CERTIFICATION

(IICRC)

IICRC S520 Standard and Reference Guide for

Professional Mold Remediation

IICRC S540 Standard and Reference Guide for Trauma and Crime Scene Biological and Infectious Hazard Clean Up

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910.120 Hazardous Waste Operations and Emergency

Response (HAZWOPER) 29 CFR 1910 Subpart I Personal Protective Equipment (PPE) 29 CFR 1910.132 General Requirements 29 CFR 1910.134 Respiratory Protection 29 CFR 1910.141 Sanitation 29 CFR 1910.147 The Control of Hazardous Energy

(lockout/tagout) 29 CFR 1910.1030 Bloodborne Pathogens 29 CFR 1910.1200 Hazard Communication 29 CFR 1926.28 Personal Protective Equipment 29 CFR 1926.51 Sanitation 29 CFR 1926.65 Hazardous Waste Operations and Emergency

Response

UNDERWRITERS LABORATORIES (UL)

UL 586 (2009; Reprint Sep 2014) Standard for High-Efficiency Particulate, Air Filter Units

1.2 DEFINITIONS

1.2.1 Biohazard Remediation Supervisor

Individual responsible for the execution of the rodent dropping remediation work as defined by the scope of work. This individual shall have documented training in biohazard remediation and have at least three years’ experience in biohazard remediation work. Remediation contractor's on-site supervisor shall have one of the following certifications: Council-Certified Mold Remediator (CMR), or Council-Certified Mold Remediation Supervisor (CMRS) as certified by the American Council for Accredited Certification, or Applied Microbial Remediation Specialist (AMRS) as certified by the Institute of Inspection, Cleaning, and Restoration Certification (IICRC), or Trauma and Crime Scene Clean Up Certification, or Contracting Officer approved equivalent

1.2.2 Containment

Physical separation and engineering controls required to prevent contamination of undamaged materials and occupied areas. The level of containment varies depending on the extent of the contamination.

1.2.2.1 Source Containment

Use when the contaminated surface area is less than 0.93 square meters (10 square feet). At a minimum, source containment shall include the following:

a. For Interior Remediation:

• Wet methods, using the approved disinfectant or sanitizer, to control infectious materials exposure during the remediation.

• Isolation of Work Areas. Install polyethylene barriers to isolate the areas or material to be remediated from non-remediation areas.

• Floor protection. Maintain protection for finished floors through all construction activities.

• HEPA vacuum to control dust created during the remediation. Hold HEPA vacuum intake at source of dust.

b. For Exterior Remediation:

• Wet methods, using the approved disinfectant or sanitizer, to control infectious materials exposure during the remediation.

• Install barrier tape or equivalent at a sufficient distance from the work area to ensure that breathable infectious materials do not sicken passersby.

• Impermeable dropcloths shall be placed on surface beneath or adjacent to all remediation activity. Dropcloths shall extend a minimum of 1.5 meters (5 feet) in every direction (where possible) from the rodent dropping source.

• HEPA vacuums to control dust created during the remediation. Hold the HEPA vacuum intake at the source of the dust.

1.2.2.2 Limited Containment

Use when contaminated surface area is between 0.93 square meters and 9.3 square meters (10 square feet and 100 square feet) per area in non-residential buildings and contaminated surface area less than 9.3 square meters (100 square feet) per area in residential buildings. At a minimum, limited containment shall include the following:

a. Containment. The containment shall include the area to be remediated, plus enough additional area to allow for all equipment and work activities.

b. Isolation of Work Areas. Install polyethylene barriers to isolate the areas to be remediated.

c. Floor protection. Maintain protection for finished floors through all construction activities.

d. Air Filtration / Pressurization Control. Install AFUs with HEPA filters in the containment. Configure the AFUs with splitters / diverters to allow some of the air to recirculate within the containment. Discharge the remainder of the air directly to the outside to maintain an overall negative pressure in the containment of 5 pascals (0.02 inch) water column minimum to 10 pascals (0.04 inch) water column maximum relative to the outside and other adjacent spaces not undergoing remediation. AFUs shall filter a minimum of four air changes per hour and a maximum of six air changes per hour.

e. Protection for all items remaining in the containment. Protective devices shall prevent physical damage (e.g., scratches and dents) and shall provide a positive seal to prevent dust from settling in or on the items.

f. Containment Entrance. Install a triple-flap poly "door" to be used during demolition to minimize egress and provide a good separation between containment and occupied areas of the house / building.

1.2.2.3 Full Containment

Use when contaminated surface area is greater than 9.3 square meters (100 square feet). At a minimum, full containment shall include the following:

a. Containment. The containment shall include the area to be remediated, plus enough additional area to allow for all equipment and work activities.

b. Isolation of Work Areas. Construct polyethylene barriers to isolate the areas to be remediated.

c. Floor protection. Maintain protection for finished floors through all

d. Air Filtration / Pressurization Control. Install AFUs with HEPA filters in the containment. Configure the AFUs with splitters / diverters to allow some of the air to recirculate within the containment. Discharge the remainder of the air directly to the outside to maintain an overall negative pressure in the containment of 5 pascals (0.02 inch) water column minimum to 10 pascals (0.04 inch) water column maximum relative to the outside and other adjacent spaces not undergoing remediation. AFUs shall filter a minimum of four air

e. Protection for all items remaining in the containment. Protective shall provide a positive seal to prevent dust from settling in or on the items.

f. Decontamination. Construct a decontamination airlock for entry into and exit from the work area. The airlock shall be used to HEPA vacuum the sealed bags of contaminated debris. When possible, the decontamination airlock shall be located so that the sealed bags can be passed directly from the airlock to the outside, through a door or window.

g. Containment Entrance. Install a triple-flap poly "door" at the entrance to the airlock, and between the airlock and the work area during demolition to minimize egress and provide a good separation between containment and occupied areas of the house / building.

1.2.2.4 Unoccupied Building Containment

Use when a building is unoccupied and large amounts of rodent droppings are present throughout the building:

a. Containment. The containment consists of the entire building. Install

AFUs with HEPA filters in the building. Configure the AFUs to recirculate within the active remediation area. AFUs shall filter a minimum of four air changes per hour and a maximum of six air changes per hour based on the size of the area undergoing active remediation.

b. Isolation of Work Areas. Install polyethylene barriers to isolate the areas where remediation is not required. AFU discharge may be used to positively pressurize non-remediation areas from areas undergoing remediation to prevent the movement of spores into "clean" areas.

c. Floor Protection. Maintain protection for finished floors through all

d. Protection for all items remaining in the containment. Protective shall provide a positive seal to prevent dust from settling in or on the items.

e. Decontamination. Construct a decontamination airlock for entry into and exit from the building.

f. Containment Entrance. A triple-flap poly "door" shall be used at the entrance to the work area during demolition to minimize egress.

1.2.2.5 Cleaning Containment

A temporary containment structure set up to clean items removed from the containment. At a minimum, the cleaning area shall contain:

a. Two chambers. Construct walls with polyethylene. Items will be cleaned in the first chamber. The clean items shall be stored in the second chamber.

b. Air Filtration / Pressurization Control Cleaning Chamber. Install

AFUs with HEPA filters in the cleaning chamber. Configure the AFUs with splitters / diverters to allow some of the air to recirculate within the containment. Discharge the remainder of the air directly to the outside to maintain an overall negative pressure in the containment of 5 pascals (0.02 inch) water column minimum to 10 pascals (0.04 inch) water column (maximum) relative to the storage chamber.

c. Air Filtration, Storage Chamber. Install AFUs with HEPA filters in the storage chamber. The AFUs shall be configured to allow air to recirculate within the chamber. AFUs shall filter a minimum of four air

d. Containment Entrance. Install a triple-flap poly "door" at the entrance to the cleaning chamber, between the cleaning and storage chambers, and at the exit of the storage chamber to minimize egress and provide a good separation between the chambers.

1.2.3 Decontamination Area

An enclosed area adjacent to, and connected to, the containment work area.

It consists of various areas that are used for the decontamination of workers, equipment, and materials.

1.2.4 Detergent

A cleaning agent. The term refers to a prepared compound that may include surfactants, builders, dry solvents, softeners, etc, but does not include true soap.

1.2.5 Disinfectants

A commercially available product that is designed to destroy all microorganisms when the disinfectant is used in accordance with the manufacturer’s instructions.

1.2.6 EPA

U.S. Environmental Protection Agency.

1.2.7 HEPA Filter

A High Efficiency Particulate Air (HEPA) filter capable of trapping and retaining 99.97 percent of all particulate larger than 0.3 microns 1.2 by 10-6 inch.

1.2.8 Non-Porous Material

A material that does not absorb nor is easily penetrated by liquids, especially water. Generally, non-porous materials have a permeable factor of less than 1. Some examples are metal, glass, plastic, ceramic tile, etc.

1.2.9 Occupied Spaces (Areas)

The phrase "occupied space" within this specification refers to spaces that are occupied by unprotected non-remediation personnel while work is in progress. It also refers to areas adjacent to work areas that are not currently undergoing remediation.

1.2.10 Personal Protective Equipment (PPE)

Any material or device worn to protect a worker from exposure to, or contact with, any harmful material or force. PPE must be cleaned or disposed of prior to removal from the remediation work area.

1.2.11 Poly

Polyethylene sheet with a minimum thickness of 0.15 millimeter (6 mils).

1.2.12 Porous Material

Permeable materials having the physical properties that allow liquids or gasses to pass through.

1.2.13 Sanitizer

A commercially available product that is designed to reduce pathogens to levels that minimize the chance of people getting sick when the sanitizer is used in accordance with the manufacturer’s instructions.

1.2.14 Semi-porous Material

A material that can absorb liquids if exposed over long periods of time.

1.2.15 Work Area

The area where remediation operations are actively performed and controlled to prevent the spread of dust and entry by unauthorized personnel.

1.3 REQUIREMENTS

1.3.1 Description of Work

Rodents on White Sands Missile Range may carry the Hantavirus. Hantavirus Survey No. 18-RF-666-97, conducted by U.S. Army Center for Health Promotion and Preventive Medicine on White Sands Missile Range 4-8 April 1997, identified the rodent species, Peromyscus Boylii (common name: Brush Mouse) as a carrier of the Hantavirus.

The Hantavirus may be transmitted to humans when exposed to infected rodents. Exposures may include: breathing in the virus. This may happen when rodent urine and droppings containing Hantavirus are stirred up into the air. Touching eyes, nose or mouth after touching rodent droppings, urine, or nesting materials that contain the virus. A bite from an infected rodent.

Persons infected with the Hantavirus may develop Hantavirus Pulmonary Syndrome (HPS). HPS is a severe, sometimes fatal, respiratory disease.

Anyone who comes into contact with rodents or rodent contaminated materials that carry Hantavirus, without proper protection, are at risk of developing HPS. HPS is not spread from person to person. For additional information, see Appendix A for the Centers for Disease Control and Prevention (CDC) HPS fact sheet.

Provide rodent dropping remediation work including the handling and control of rodent contaminated materials and the resultant procedures and equipment required to protect workers, the environment and occupants of the building or area, or both, from contact with rodent dropping products. The work also includes the disposal of any rodent droppings and contaminated materials generated by the work. The rodent dropping removal work includes the disinfection or sanitizing of surfaces contaminated by rodent droppings and contaminated materials. Provide containment and engineering control techniques as outlined in this specification. All rodent dropping and contaminated materials removal work shall be supervised by a biohazard remediation supervisor as specified herein.

No work in this specification section shall be provided by any person, contractor, or contracting entity involved in the preparation of the contract documents of which this specification section is a part.

The following rodent dropping remediation specifications apply to the cleaning / removal and disposal of rodent droppings and contaminated materials on porous, semi-porous and non-porous surfaces within various types of structures. The level of containment and requirements for cleaning and remediation of materials will depend on the condition of the space and materials being remediated.

Prepare a rodent dropping remediation plan for approval by the Government.

The rodent dropping remediation plan shall include an assessment of the risk for people to occupy areas adjoining the remediation area while remediation work is occurring. Submit the plan to the Contracting Officer for approval.

The Contractor's biohazard remediation supervisor shall monitor the site on a daily basis while remediation work is in progress, identifying work and/or work practices that are not in compliance with the approved rodent dropping remediation plan, and performing all inspections required by this specification. The Contracting Officer may require the removal of any individual for non-compliance with quality requirements specified in the contract.

This specification section includes the protocol regarding proper disposal of the removed building material components from within the work site.

Use proper cleaning procedures, engineering controls, and apply best management practices to remove rodent droppings and contaminated material from all surfaces and building materials. Address semi-porous and nonporous surfaces within the facility in each cleaning phase of the project. Damp wipe with the approved disinfectant or sanitizer and HEPA vacuum all surfaces, at a minimum. Remove and dispose of porous building materials contaminated with rodent droppings and contaminated materials.

1.3.2 Security Requirements

Prior to granting access to any work area (i.e., building, area, room, or space) for rodent dropping remediation work, a determination must be made by the government agency whether classified or controlled unclassified information (paper material and / or electronic media) or equipment is contained in the work area(s).

If Contractor personnel require access to classified information or spaces to perform rodent dropping remediation work, the Government must issue the Contractor facility a DD Form 254 (Contract Security Classification Specification) prior to the initiation of the work under the contract. If the Contractor facility does not possess a valid DD Form 254 issued by the Defense Security Service (DSS), the Government will be required to submit a sponsorship request to DSS requesting that the Contractor be processed for and issued a current DD Form 254 at the appropriate level.

Access to classified information (paper material, electronic media, and equipment) must only be granted to authorized and appropriately cleared government and U.S. contractor personnel that possess a personnel security clearance commensurate with the level of information contained in the work area that requires a mold remediation effort.

Access to Controlled Unclassified information (i.e., For Official Use Only, Sensitive but Unclassified, Privacy Act Information, Export Controlled unclassified, etc.) can be granted to DOD cleared contractors, consultants and grantees that are conducting official business for the DOD. Non-cleared U.S. contractor personnel who only require access to controlled unclassified information can be granted access if they get a favorable trustworthiness determination on an individual Facility Access Determination National Agency Check (FADNAC) submitted on their behalf by the government agency issuing the contract.

Classified information and controlled unclassified information must be safeguarded / secured, reproduced, and destroyed in accordance with SECNAV M-5510.36.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. Submit the following:

SD-01 Preconstruction Submittals

Rodent Dropping Remediation Plan; G

Remediation Worker Qualifications; G

Respiratory Protection Program; G

Biohazard Remediation Supervisor Qualifications; G

Proof of respiratory protection medical surveillance for workers and supervisors; G

Proof of respirator fit testing for workers and supervisors; G

Proof of Bloodborne Pathogens training for workers and supervisors;

G

Proof of Hazard Communication training for workers and supervisors;

G

Proof of Lock Out/Tag Out training for workers and supervisors; G

SD-03 Product Data

Personal Protective Equipment (PPE); G

Respirators; G

Disinfectants or Sanitizers; G

Safety Data Sheets for all chemicals to be used; G

HEPA vacuum; G

1.4.1 Preconstruction Submittals

Within ten (10) days from the award of the contract and prior to the start of the work, submit to the Contracting Officer the following items for review and permanent file.

1.4.1.1 Rodent Dropping Remediation Plan

Submit a job-specific, detailed plan to the Contracting Officer for final approval prior to start of work. The plan shall address the following items at a minimum:

a. Description of materials to be remediated, providing location and quantities (map if available), and methods to be used for remediation.

b. Types of disinfectants or sanitizers to be used. Disinfectants or sanitizers shall be EPA approved for the required use. One approved sanitizing solution is 1 part household bleach to 10 parts water.

c. Containment procedures to include description and locations of engineering controls and decontamination area to include entry and exit procedures (provide sketch of floor plan showing location of containment barriers and decontamination areas).

d. Description of personal protective equipment to be used during the remediation.

e. If required, Construction barricades and barriers.

f. Packaging and disposal procedures.

g. Safety Precautions to include lockout / tag-out and fire protection.

h. Description of the method to be employed to control cross contamination of areas not in the work area.

i. Biohazard Remediation Supervisor Quality Control procedures to include visual inspection.

1.4.1.2 Respiratory Protection Program

Provide written copy of Contractor's Respiratory Protection program.

1.4.1.3 Worker Records

Provide the following documents for all workers, including supervisory personnel. If new workers are added to the crew, provide the same documentation for them.

Employee Instruction and Release Form: Provide documentation showing that each employee has been instructed on the following items:

a. Use and fit of respirators (for employees entering and working in the containment).

b. Protective clothing.

c. Protective measures.

d. Safety and Emergency Egress Procedures.

e. Rodent dropping remediation hazards and practices including engineering controls and isolation. Training should include "hands on" training for biohazard remediation supervisors.

f. Workers' release forms stating the potential hazards involved with the scope of the work. Worker Training Certification: Submit copies of training certificates for each employee indicating that the employee has received training at the appropriate level for the work prescribed in the description of work.

1.4.1.4 Biohazard Remediation Supervisor Qualifications

Onsite supervisor shall have at least one of the following certifications:

Certified Mold Remediator (CMR), Certified Mold Remediation Supervisor (CMRS), Applied Microbial Remediation Specialist (AMRS), or Trauma and Crime Scene Clean Up Certification. Submit copies of supervisory training certificates.

1.4.2 Product Data

Within 10 days of contract award, submit product data for items identified for use in Rodent Droppings Remediation Plan.

1.4.3 Submittals at Completion of Remediation Work

Within 14 days of completion, provide the following information:

a. Supervisor Logs.

b. Photographic Logs.

c. Biohazard Remediation Supervisor Report certifying the rodent dropping remediation is complete.

1.5 RECORD KEEPING

A Daily Project Log shall form a permanent record of the project. Secure and maintain these logs and any other required documentation as part of the permanent project file.

1.5.1 Daily Log

The Remediation Supervisor shall maintain a Daily Project Log. The Daily Project Log shall be used each day of the project to document the following information.

a. Date.

b. Name of Biohazard Remediation Supervisor.

c. Number of workers on site.

d. Equipment utilized.

e. Brief description of daily work activities.

f. Listing of any non-compliance noted, emergencies, stop work orders

(with detailed explanation), and descriptions of any other significant events.

PART 2 PRODUCTS

2.1 DISINFECTANTS OR SANITIZERS (EPA)

Shall be approved by EPA for the use detailed in the Rodent Dropping Remediation Plan and used in accordance with the manufacturer's specifications.

An approved sanitizing solution is 1 part household bleach to 10 parts water.

PART 3 EXECUTION

3.1 EQUIPMENT

Provide protective clothing and respirators as required by the Rodent Dropping Remediation Plan for use by any authorized visitors. Provide manufacturer's certificate of compliance for all equipment used to contain the rodent dropping contamination. Contractor shall not be required to certify that visitors entering work areas be capable of wearing respirators.

3.1.1 Respirators

Select respirators from those approved by the National Institute for Occupational Safety and Health (NIOSH), Department of Health and Human Services. Provide personnel engaged in set-up, pre-cleaning, cleanup, handling, and removal of contaminated materials with the appropriate respiratory protection as specified in 29 CFR 1910.134.

Minimum respirator Requirement: ½ Face Negative Pressure Respirator with P100 HEPA filtering cartridges.

3.1.2 Protective Clothing

Provide all workers and supervisors with protective clothing as appropriate for the work being accomplished, as required by the Rodent Dropping Remediation Plan.

Do not permit any person to enter the work area without the appropriate protective clothing and equipment.

Minimum Protective Clothing Requirement:

a. Full body disposable coverall with attached hood and booties.

Elasticated face at the hood opening, elasticated wrists and ankles. Coverall shall be appropriate for remediation of infectious organisms.

b. Nitrile or latex gloves under leather work gloves.

c. Steel (or composite) toe leather or rubber boot (over the ankle boot).

3.1.3 Warning Signs and Labels

Provide bilingual warning signs printed in English and Spanish at all approaches to the work areas. Locate signs at such a distance that personnel may read the sign and take the necessary protective steps required before entering the area. Warning signs may be in the form of continuous plastic tape. The warning signs shall have black characters on a yellow background.

WARNING

DO NOT ENTER

BIOHAZARD REMEDIATION WORK IN PROGRESS

Alternate wording for the warning signs will be approved by the Contracting Officer.

3.1.4 Vacuum Cleaners Equipped with HEPA Filters

Provide vacuum cleaners equipped with HEPA filters designed for continuous operation to perform the work in a timely and efficient manner.

Provide nozzle attachments as required to adequately remove all dust. As a minimum, nozzle attachments shall include crevice and extended bristle brush nozzles. Any vacuum that is not equipped with a HEPA filter shall not be used at anytime.

Provide sufficient vacuum cleaners equipped with HEPA filters designed for continuous operation in the work area during microbial remediation inside the containment area.

Provide additional vacuum cleaners equipped with HEPA filters in the enclosed work area during remediation or cleaning work as required by the size (area) of the containment and to maintain timely progress of the work.

3.2 GENERAL REQUIREMENTS

3.2.1 Pre-Rodent Dropping Remediation Work Conference

Meet with the Contracting Officer prior to beginning work to discuss in detail the Rodent Remediation Plan, including work procedures and safety precautions. Once approved by the Contracting Officer, the plan shall be enforced as if a part of this specification. Any variances to the specification as a result of the plan shall be specifically identified to allow for free discussion and approved by the Contracting Officer in writing prior to starting work.

3.2.2 Containment Entry / Exit Procedure

Ensure that each worker and authorized visitor follows entry and exit procedures detailed in the Rodent Dropping Remediation Plan.

3.3 REMOVAL PROCEDURES

3.3.1 Protection of Existing Work Areas

Perform work in a manner to minimize the damage or contamination to areas outside or directly adjacent to the work area. Contractor is required to inspect areas inside and outside proposed work areas to identify existing damage and notify Contracting Officer prior to start of work.

Where materials outside work area are damaged or contaminated as a result of the Contractors work efforts as verified by the Contracting Officer using visual inspection or sample analysis, it shall be restored to its original condition or decontaminated by the Contractor at no expense to the Government as deemed appropriate by the Contracting officer. Should adjacent or outside areas become contaminated as a result of the Contractors work efforts the work shall stop immediately. The newly contaminated areas shall be cleaned and verified by visual inspection by the Biohazard Remediation Supervisor. The work may proceed at the discretion of the Contracting Officer once the area has been verified as restored.

3.3.2 Remediation of Rodent Contaminated Building Materials

The removal of contaminated materials shall follow in general the listed sequence of work. The Contractor may make changes to improve work flow with the approval of the Contracting Officer.

a. Lock out and tag out all electrical equipment within the work area. The Biohazard Remediation Supervisor shall ensure that the work area is safe from electrical hazards.

b. Provide level of containment and PPE required by the Rodent Dropping Remediation Plan.

c. If present, disable all HVAC units, exhaust fans, and exterior building intakes in the area to be remediated.

d. Protect materials to remain in work area. Where possible, all materials to be salvaged should be cleaned in place to prevent possible cross-contamination created by moving materials through non-remediation areas.

e. Remove undamaged items and materials to be cleaned and salvaged from the work area. Materials shall be stored in an area where temperatures will not damage the material. Notify Contracting Officer of existing damage to items prior to removal.

f. Set up containments, including protection of materials remaining within the containment. Notify Contracting Officer that the area is prepared for remediation activities.

g. Pre-remediation inspection by the Contracting Officer.

h. Removal / cleaning of contaminated materials.

i. Post-remediation inspection by the Contracting Officer.

j. Perform final cleaning in the containment.

k. Final visual inspection by the Contracting Officer.

l. Deconstruction of containments.

m. Clean previously removed items prior to returning to occupied area.

3.3.3 Remediation Procedures

Procedures for remediation depend on the amount of rodent droppings and contaminated materials.

3.3.3.1 Cleaning/Disinfection/Sanitizing of Non-Porous Surfaces

The method of cleaning/disinfection of non-porous items shall be:

a. HEPA vacuum all surfaces.

b. Scrub surfaces with a brush and detergent.

c. After scrubbing the surfaces, damp wipe all surfaces using the approved disinfectant or sanitizer.

3.3.3.2 Cleaning/Disinfection/Sanitizing of Semi-Porous Surfaces

The method of surface cleaning/disinfection of semi-porous materials such as concrete:

a. HEPA vacuum all surfaces.

b. Scrub surfaces with a brush and detergent.

c. Damp wipe surfaces with clean water.

3.3.3.3 Removal of Porous Materials

a. Rodent droppings

(1) Removal: Remove and dispose of the rodent droppings.

b. Contamination Materials (vegetation, dirt, and general debris)

(1) Removal: Remove and dispose of the contaminated materials.

c. Electrical Conduit to Electrical Cable Sealant

(1) Removal: Remove and dispose of the sealant and dispose of the sealant.

3.4 DETAILED SEQUENCE OF WORK FOR RODENT DROPPINGS AND CONTAMINATED MATERIALS

REMOVAL UNDER CONTAINMENT

3.4.1 Preparation for Remediation Work

a. Provide level of containment and PPE required for the remediation based on the Rodent Dropping Remediation Plan and as shown in the drawings.

b. Construct containment area. Install drop cloth around the area to be remediated. Extend drop cloth, in all horizontal directions where possible, a minimum of 1.5 meters (5 feet) from the area to be remediated. Drop cloths shall consist of a minimum of 2 layers of

0.15 millimeter (6-mil) poly or 2 layers of reinforced 0.15 millimeter (6-mil) poly anchored to the floor or ground to ensure it stays in place during all remediation activities. Cover all other surfaces, within the containment area with one layer of 0.15 millimeter (6-mil) poly or reinforced poly. Tape down or anchor the poly to ensure that it remains in place during all remediation activities.

c. Construct a decontamination area that is adjacent and connected to the containment area. The decontamination area shall be of sufficient size to accommodate the movement of remediation workers plus equipment. The floor of the decontamination area shall be a minimum of 2 layer of 0.15 millimeter (6-mil) poly or 2 layers of reinforced

0.15 millimeter (6-mil) poly anchored to the floor or ground to ensure it stays in place during all remediation activities.

d. Install all equipment needed for remediation work in the containment area to minimize egress during remediation.

e. Install barriers to prevent unauthorized access to the remediation site. Barriers shall be installed with caution or warning signs.

Caution or warning signs shall be placed at all approaches to the containment

f. The Contracting Officer will inspect the containment area, decontamination area, barriers, and signs to verify that the remediation work area is properly constructed.

3.4.2 Rodent Droppings Remediation

a. Ensure all electrical power has been disconnected and turned off.

Ensure lock out/tag out provisions have been installed.

b. Spray areas with rodent droppings and contaminated materials with the approved disinfectant or sanitizer. Thoroughly soak the rodent droppings and contaminated materials. Allow the disinfectant or sanitizer to soak for at least 5 minutes before removal.

c. Remove contaminated materials to be discarded, such as vegetation, dirt, and general debris by HEPA vacuuming. Contaminated materials that are too large to be HEPA vacuumed shall be double bagged in 0.15 millimeter (6 mil) poly bags. Seal poly bags using duct tape inside the containment area. HEPA vacuum bags before removing them from the containment area.

When possible, pass the bags directly from the containment area to the outside. Transport bags to a dumpster. Do not leave the bags at the building.

d. Remove rodent droppings by HEPA vacuuming.

e. Remove electrical conduit to electrical cable sealant. Sealant shall be double bagged in 0.15 millimeter (6-mil) poly bags. Seal poly bags using duct tape inside the containment area. HEPA vacuum bags before removing them from the containment area. When possible, pass the bags directly from the containment area to the outside. Transport bags to a dumpster. Do not leave the bags at the building.

f. After removal of all bulk rodent droppings, contaminated materials, and sealant remove any remaining residue. Re-apply the approved disinfectant or sanitizer and allow the disinfectant or sanitizer to soak for at least 5 minutes before removal. Use a paper towel or equivalent to pick up any remaining residues. Used paper towels and residues shall be double bagged in 0.15 millimeter (6-mil) poly bags. Seal poly bags using duct tape inside the containment area.

HEPA vacuum bags before removing them from the containment area.

When possible, pass the bags directly from the containment area to the outside. Transport bags to a dumpster. Do not leave the bags at the building.

3.4.3 Post-Remediation Inspection

a. The Contracting Officer will inspect the containment area to verify that all rodent droppings and contaminated materials have been removed.

3.4.4 Cleaning/Disinfection/Sanitizing after Remediation

a. Clean exposed surfaces: Clean exposed surfaces as specified in paragraphs 3.3.3.1 Non-Porous Surfaces and 3.3.3.2 Semi-Porous Surfaces of this specification.

b. Final clearance inspection will be conducted by Contracting Officer.

Clearance inspections will be performed using the procedures detailed in Post-Remediation Inspection. Maintain containments in place until spaces are inspected and accepted by the Government as being fully remediated. The Government will determine whether the Contractor shall conduct additional cleaning and repeat the clearance process.

3.5 FIRE PROTECTION

The Contractor shall provide portable fire extinguishers within the containment area and outside the decontamination unit. Fire extinguishers shall be rated for the class of fire hazards in the work area and shall be sized for coverage of the areas within the containment. At a minimum, one

4.5 kg (10 pound) ABC fire extinguisher for every 930 square meters (1,000 square feet) shall be strategically placed around the containment.

Personnel shall be trained for emergency egress and the use of fire extinguishers. Notify fire officials of work activities as required.

3.6 CONSTRUCTION BARRIERS

a. Do not disturb rodent droppings and contaminated materials while isolating work areas. This precaution prevents the release of breathable infectious materials.

b. Workers shall wear respirators and other PPE as outlined in the remediation plan when installing polyethylene or barriers where rodent droppings or contaminated materials are likely to be disturbed.

3.7 QUALITY ASSURANCE / QUALITY CONTROL REQUIREMENTS

3.7.1 Contractor Qualifications

Work shall be performed by a qualified remediation contractor. Contractor shall carry insurance that specifically covers rodent dropping remediation.

Remediation contractor's on-site supervisor shall have one of the following certifications: Certified Mold Remediator (CMR), Certified Mold Remediation Supervisor (CMRS), Applied Microbial Remediation Specialist (AMRS), or Trauma and Crime Scene Clean-Up Certification. Qualified supervisor shall be onsite whenever set-up activities and active remediation is being performed.

Remediation workers shall be given training in PPE and rodent dropping remediation activities as required for their particular job. The remediation plan shall provide details of worker training.

3.7.2 Waste Management and Removal

Keep the site and work area free from accumulations of dust, waste materials, or rubbish caused by Contractor operations and free from any flammable materials or other sources of fire hazard. Remove all waste materials and rubbish from and about the work site in strict accordance with the specifications and applicable codes and regulations.

3.7.3 Post-Remediation Inspection

Clean up all debris and dust outside the work area resulting from the Contractor's remediation work.

After all visible accumulations of material and debris are removed from the containment, provide the Contracting Officer a 24-hour notice for a final clearance visual inspection. The Contracting Officer and Contractor's Biohazard Remediation Supervisor shall conduct a thorough visual inspection of the work area. If during this inspection any visible debris are observed, the Contractor shall re-clean the work area without additional cost to the Government.

3.7.3.1 Clearance

a. Clearance Criteria

Clearance will be based on visual assessment (all visible droppings, debris, residues, and films removed, all visible dust removed, based on a "white glove" test) by Contracting Officer. "White glove" test shall consist of wiping the surface with a clean cloth of color suitable to reveal expected type of dust. For most surfaces, a white cloth is suitable.

b. Failed remediation areas will be re-cleaned, followed by another visual assessment. Subsequent failures will follow the same routine until a pass condition is secured.

3.8 CLEAN-UP AND DISPOSAL

3.8.1 Disposal of Material

Dispose of contaminated bagged waste materials removed during this remediation as general construction debris. Follow all applicable local, State, and Federal requirements for the disposal of this material.

3.8.2 Material Packaging

Place waste, as waste is removed, into a disposal container promptly.

Disposal containers shall consist of at a minimum, two layers of clear 0.15 millimeter (6 mil) polyethylene bags. Tape bags in a gooseneck fashion to form an airtight seal and label appropriately. Bag waste from vacuums equipped with HEPA filters in 0.15 millimeter (6 mil) polyethylene bags.

3.8.3 Hazardous Material

Should the Contractor encounter any hazardous materials, notify the Contracting Officer immediately for direction.

3.9 APPENDICES

Appendix A – CDC Hantavirus Pulmonary Syndrome Face Sheet

Appendix A

CDC Hantavirus Pulmonary Syndrome Fact Sheet

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