Attachment 1 - PWS 28 Oct 2024.pdf

PREFORMANCE WORK STATEMENT

MAINTAIN HVAC DUCTS & DRYER

VENTS AT 15 MAFs

PROJECT NO: GHLN 24-6381

Prepared By:

90 CES/CEM

Missile Engineering

F.E. Warren Air Force Base, Wyoming

Carla Mlinar

Engineer October 28, 2024

Service Contract

TABLE OF CONTENTS

OVERVIEW

DESCRIPTION OF SERVICE

SERVICES SUMMARY

SECURITY REQUIREMENTS

PRINCIPLE FEATURES OF WORK PER CSI DIVISION

CSI 01 – General Requirements

CSI 02 – Existing Conditions

CSI 23 00 00 – Heating, Ventilating, and Air Conditioning (HVAC)

APPENDIX A – References

OVERVIEW

1. This project includes cleaning the HVAC ducting and dryer vents at fifteen (15) Missile Alert Facilities (MAFs). The MAFs are secure sites and are to remain operational during the commencement of the work for this contract. HVAC duct and dryer vent cleaning will consist of the following.

a. Duct work to include, but is not limited, to any interior surface of the facility’s air distribution system for conditioned space and/or occupied zones. This includes the entire heating, air-conditioning, and ventilation system from the points where the air enters the system to the point where the air is discharged from the system. The return air grilles, return air ducts (except ceiling plenums and mechanical rooms) to the air handling unit (AHU), the interior surfaces of the AHU, mixing box, coil compartment, condensate drain pans, humidifiers and dehumidifiers, supply air ducts, fans, fan housing, fan blades, air wash systems, spray eliminators, turning vanes, filters, filter housings, reheat coils, and supply diffusers are all considered part of the HVAC system.

b. The HVAC system may also be included and other components such as dedicated exhaust of the ventilation components and make up including dryer vents or any other discharge point.

2. The Contractor shall thoroughly clean and verify by conducting inspections and/or testing in accordance with current, applicable NADCA Standards, manufacturer’s recommendations; and this Performance Work Statement (PWS). The Contractor shall conform to all inspection work in accordance with the specifications listed from the above. All the MAFs are under the control of F.E.

Warren Air Force Base, Wyoming.

3. Work will not include any work performed on the electrical, non-ducted ceiling plenums, and work pertaining to the mechanical repair of electrical or pneumatic components, repair of high-pressure vessels, or gas/oil controls.

4. The work shall be performed at the following MAFs located in Colorado, Nebraska, and Wyoming.

The distances from F.E. Warren AFB are indicated below.

SITE

(MAF) COUNTY STATE

DISTANCE

(MILES)

A01 Laramie WY 63 B01 Banner NE 58 C01 Banner NE 90 D01 Kimball NE 70 E01 Kimball NE 52 F01 Kimball NE 84 G01 Cheyenne NE 97 H01 Cheyenne NE 123 I01 Cheyenne NE 114 J01 Logan CO 117 K01 Kimball NE 80 L01 Weld CO 86 M01 Logan CO 122 N01 Weld CO 94 O01 Weld CO 66

DESCRIPTION OF SERVICE

The Contractor shall provide all labor, materials, equipment, and transportation necessary to render HVAC and HVAC components clean; to verify the cleanliness through inspection; and testing in accordance with items specified herein and current, applicable NADCA Standards to include federal and state regulations, in strict compliance with the specifications, applicable drawings, attachments, as well as all applicable building codes, standards, and practices in the industry.

SERVICES SUMMARY

The Contractor service delivery requirements are summarized into performance objectives that relate directly to the standards of performance required to meet mission needs. For the Performance Objective to be met, service delivery must be in substantial compliance with applicable performance standards. The Performance Threshold describes the minimum overall levels of service delivery required for acceptable quality control. Failure to meet these Performance Thresholds means that Contractor Quality Control is unacceptable. The following is a list of the key performance objectives that will be verified as contractually compliant by Government personnel; however, inspection of any contract requirement is authorized.

Performance Objective

PWS Para. Performance Threshold Method of Surveillance

SS-1: Perform CSI 01

CSI 02

CSI 23

No more than two (2) re-performances per MAF. 90th CEM Inspector shall inspect and sign off on each service.

100% Inspection

Customer Feedback

SS-2: Records CSI 01

CSI 23

No more than two (2) discrepancies per MAF report.

100% Inspection

Customer Feedback

1. The Contractor, at the conclusion of the project, shall provide:

a. Testing Procedures Summary.

• Visual Inspection results verifying successful performance of cleaning project;

and/or

• Gravimetric Analysis test results verifying successful performance of cleaning project.

b. Post-Project Report. Areas of the system found to be damaged, deficient, and/or in need of repair.

SECURITY REQUIREMENTS

1. Security Compliance: The Contractor and its personnel, to include its employees and any subcontractors, shall comply with pertinent Air Force security regulations while working on the project.

2. Special Security Clearances: None required.

3. Missile Field Access: Access to MAFs is controlled by the U.S. Air Force. All contracted personnel entering the sites shall be on an Entry Authority List (EAL), created by the Air Force.

a. Contractor shall provide complete written, valid, and legible data that shall include legible photocopies or scanned electronic documents to be used to produce the initial EAL prior to their initial commencement of work at the site for this project. The standard processing time for all

EAL actions is thirty (30) Calendar days. Any request to create the initial EAL, or any request to, add to, modify, correct, or renew the EAL must be submitted at least thirty-one (31) Calendar days before needing entry to the MAF or LF sites. Any delays caused by submission of incorrect, outdated, or invalid information will be at no cost to the Government. The 90th CES/CEM will provide to the 90th CEM Inspector and the Contractor, the expiration date for each EAL, when the date is made effective.

b. Contractor submitted data shall include the following for each employee (to include prime, subcontractor, and delivery/testing services employees). All documentation is to be submitted via DoD SAFE:

i. Project number, contract number, name of project, and the 90th CEM Inspector.

ii. Employers name and address (city and state).

iii. Driver’s License:

Legible photocopy or electronically scanned valid driver’s license, state photo ID card, or official state/federal photo ID card with the individual’s name.

The same ID shall be shown for entrance onto the site once the EAL is effective.

c. Identification cards that expire during the service period must be updated and photocopies or scanned copies must be sent to the 90th CEM Inspector or his/her authorized representative thirty-one (31) Calendar days prior to expiration or the person shall be dropped from the EAL.

d. The Contractor is responsible to provide and maintain the information required to obtain a current EAL for all Contractor personnel working on the MAF.

4. F.E. Warren AFB Communications: The majority of work will be at areas where commercial phone service is not available. The following phone numbers are provided for assistance in conducting on-base telephone communications.

OFFICE NUMBER

Emergency 911

Base Operator (307) 773-1110 Visitor Control Center (VCC) (307) 773-3694

Contracting Office (307) 773-3411/4911 Fire Department Tech Services (307) 773-5528

90th Civil Engineering Squadron (CES) (307) 773-3600 90th CES Missile Engineering (307) 773-2438 90th CES Customer Service (307) 773-3175

90th CES Environmental (307) 773-2594 90th Missile Wing Safety (307) 773-1842

90th Bioenvironmental Engineering (307) 773-3088 Base Defense Operations Center (BDOC) (307) 773-3501

Missile Security Control (MSC) (307) 773-2701

5. Contraband:

a. The following items are considered contraband on MAF sites. It is an individual’s responsibility to make certain contraband items are not brought into the MAF site.

i. Privately owned firearms to include rifles, shotguns, handguns, air/pellet guns, and sling shots.

ii. Privately owned ammunition or unauthorized ammunition.

iii. Knives (Exception: Knives with a blade less than four inches in length are permitted).

iv. Explosives, except for official use or storage.

v. Illegal drugs or controlled substances.

b. Note: The use of any tools related to the project that are not annotated on the EAL and signed by 90 MW/CC or designated representative to enter onto the MAF, shall be deemed as contraband.

i. Thus, all tools are required to be annotated on the EAL and must be signed by designated representative, prior to entry to the MAF.

6. Vehicle Identification and Parking:

a. Company logos must be displayed on each side of all vehicles or heavy equipment brought onto or operated on site. Company logos must be clear, legible, and identifiable from at least thirty feet (30’). Vehicles and equipment without such identification may be denied access to the site.

b. The access road leading from the main road adjacent to the site is under military control. The area off to the sides of the access road is either private property, federal, state, or county property.

Parking vehicles on the access road is prohibited unless permission has been obtained from the Air Force. Vehicles may be parked in the Air Force access area, but any such parked vehicles must be clear of the boundary fence by a minimum of twenty-five feet (25’) and a minimum of fifty feet (50’) from the centerline of the access road.

c. Contractor vehicles and trailers will be allowed to park inside the security fence only to deliver materials or equipment required to support the work under this contract and shall be searched by Air Force Security Forces prior to entry. Vehicles and equipment shall be allowed on the site only during work performance and shall not remain parked inside the security fence overnight.

d. Contractor vehicles and equipment shall be placed so as not to interfere with gates, emergency escape routes, antenna, and other above ground structures.

7. Site Entry:

a. To gain entry onto the project facility, the Contractor personnel must be:

i. Listed on an effective EAL.

ii. Identified by escort personnel.

iii. Able to produce, for verification, the exact form of ID given for the EAL process.

iv. Submit to physical and electronic search of person and materials.

v. Physically escorted on-site by an authorized escort official and remain under escort full time while on site.

vi. Not in possession of any electronic device or cellular telephone at LFs.

vii. Requirement equipment identified with a serial number/make or model must be listed correctly on the EAL in order for that piece(s) to be allowed to enter the site.

b. Upon arrival, the escort will identify all Contractor personnel and check identifications. Processing onto and off the sites may require approximately thirty (30) minutes each and shall not be considered delay time. The processing onto and off the site shall be during normal working hours, between 7:30 a.m. (start processing on site) and 4:00 p.m. (terminated work off site)

c. Contractor personnel not listed on the EAL or those who cannot provide proper identification shall not be permitted on a facility.

8. Interrupted Site Access: If existing access to the site is to be temporarily blocked, temporary access shall be properly provided by the Contractor. The Contractor shall notify the 90th CEM Inspector twenty-one (21) Calendar days prior to any interruption of access to the sites. Date, site(s) affected, length of time, and alternate entry method for Site Interruption Plan shall be submitted in writing for approval.

9. Vacating The Work Area: During exercises, natural disaster, national emergencies, and/or for security reasons, the Contractor may be required to vacate a work area.

10. Utility Services

a. The Contractor shall provide all utilities and water (drinking and service). The Contractor shall not be permitted into the MAF unless escorted for use of toilets and/or porta-johns at the work site(s) (MAFs). The Contractor shall provide site facilities for lunch and break areas as needed.

b. When working at the MAF, limited drinking water and no sanitary facilities are available, no commercial phone service, or commercial power is available.

c. Photographic capability is only designated by utilizing Government-issued cameras. Contractor may request photographs by requesting justification of need to the Contracting Officer/Project Inspector.

PRINCIPLE FEATURES OF WORK PER CSI DIVISION

NOTE: Refer to this Performance Work Statement, drawings, and attachments for complete details of work. This scope is a general overview of intended work.

CSI 01 – General Requirements

1. Project Scheduling: Contractor shall submit project schedule to the 90 CES/CEM within fifteen (15) Calendar days after award of the Contract.

a. The Contractor shall coordinate all work with the 90 CES/CEM, verify that work can be performed as scheduled before traveling to the work site, provide a minimum of ten (10) business days’ notice—in writing—before beginning work, and provide a means for contact after normal working hours for notification of emergency changes to the schedule. If work is not coordinated as stated, Air Force personnel may not be available, work may not be permitted, and the Government shall not incur any additional cost as a result.

b. Working hours will be between the hours of 7:30 a.m. (start processing on site) and 4:00 p.m.

(terminated work off site) excluding Saturdays, Sundays, and Federal Holidays. A 90th CEM Inspector /escort will be provided during these work hours.

i. Recognized Federal Holidays include:

New Year's Day (January 1).

Birthday of Martin Luther King, Jr. (Third Monday in January).

Washington's Birthday (Third Monday in February).

Memorial Day (Last Monday in May).

Juneteenth National Independence Day (June 19).

Independence Day (July 4).

Labor Day (First Monday in September).

Columbus Day (Second Monday in October).

Veterans Day (November 11).

Thanksgiving Day (Fourth Thursday in November).

Christmas Day (December 25).

2. Submittals: Prior to starting any work, the Contractor shall submit all required submittals in accordance with AF Form 66, Schedule of Material Submittals, and on AF Form 3000 Material Approval Submittal to the 90th CEM Inspector for review and approval in accordance with the requirement of these specifications.

a. Include outlines, dimensional, assembly and subassembly drawings, parts list and other data required to completely describe each item to be used.

b. When more than one model, series or design is illustrated on any one submittal sheet, the item of intended use shall be highlighted and clearly marked with an arrow or asterisk to eliminate confusion as to the product to be approved. Any materials and/or methods not in strict conformance with requirements of this contract shall also be submitted for review and approval.

c. Submittals shall be provided as one (1) searchable electronic copy via DoD SAFE. Each Contractor-supplied item shall be submitted for approval and approved by the 90th CEM Inspector prior to installation. In no case shall materials be incorporated into the work unless prior written approval is obtained from the 90th CEM Inspector.

d. All submittal information shall be provided by the Contractor, no less than fifteen (15) Calendar days prior to any site work or by the date determined by the Government Inspector at the pre-performance meeting. One signed and dated copy of the submittal shall be returned to the Contractor after approval or disapproval by the 90th CEM Inspector.

e. Submittals shall not include information on items other than those provided under this contract.

f. Optional or upgrade items and related information shall only be shown in submittals if included or provided to the Air Force as a portion of this contract.

g. The Contractor shall review and forward all submittals, including subcontractors’ submittals, and shall submit all materials as listed via DoD SAFE to the 90th CEM Inspector for review. By reviewing and submitting items, the Contractor represents that all measurements, criteria, materials, catalog numbers and similar data have been verified, and each submittal has been coordinated within the requirements of this PWS.

3. Shop Drawings: Shop drawings shall be submitted for all items or components to be fabricated or assembled and requiring detail drawings in excess of, or to complement, the general drawings and details included in the plans.

a. The plans shall be supplemented by shop drawings as necessary to adequately control the work.

Shop drawings may consist of drawings, diagrams, SDS, illustrations, schedules, calculations, or other data prepared by the Contractor, subcontractor, manufacturer, supplier, or distributor which illustrate specific portions of the work to be fabricated or installed in accordance with the plan details and specifications.

b. Any work done prior to approval of shop drawings shall be done at Contractor's risk. Approval of shop drawings shall not relieve the Contractor’s obligation to meet all requirements of the plans and specifications, nor relieve the Contractor’s responsibility for the correctness of the shop drawings.

c. If shop drawings are returned for correction, corrections shall be made, and the drawings re-submitted for review and comment.

d. Drawings shall be marked with the appropriate classification and controlled unclassified information markings (CUI), as necessary. (Example: A title block clearly stating the project name, project number, Contractor's name, title or purpose drawing, and date.)

4. Product Data: Manufacturer’s product data for all commercial products, components, devices, or distinct units shall be submitted by Contractor for review prior to installation in the work.

a. Such product data includes catalog sheets, brochures, SDS, diagrams, schematics, schedules, performance starts, illustrations and other standard descriptive data.

b. All product data submitted shall be clearly marked to identify pertinent materials, products, or models to be incorporated in the work. All dimensions, clearances, tolerances, performance characteristics, specifications, wiring diagrams, and other such pieces of information shall be clearly marked or highlighted.

i. Tolerance: Do not permit tolerance to accumulate.

c. Project name, project number, Contractor’s name, and date shall be written on all product data submitted.

5. Certificates of Compliance: Manufacturer's certificate of compliance for all materials to be incorporated in the work shall be submitted for review and approval by the 90th CEM Inspector prior to execution of the work.

a. Said certificates shall certify compliance with project specifications, applicable reference standards or specifications, and test data requirements as required.

b. Certificates shall be marked with the project name, project number, title or purpose, and date.

Certificates shall further contain the name, title and signature of the person certifying the product, and the name and address of the corporation or business supplying the product and certificate.

6. Testing/Test Results: Submit all test results documenting compliance with project specifications and/or applicable reference standards or specifications to the 90th CEM Inspector. Tests shall be performed on a material prior to incorporating the material in the work—in accordance with section labelled, “Product Data”—and shall be submitted to the 90th CEM Inspector with the certificate of compliance.

a. Quality control testing performed during the execution of the work shall be submitted upon completion of the test in accordance with these specifications.

i. Refer to Submittals and CSI 23 00 00, Verification of Cleanliness, for acceptable test(s) to be completed and the results of testing(s) to be submitted for the 90th CEM Inspector’s approval and/or knowledge.

ii. Four (4) copies of the test reports, indicating observations, and results of test, indicating compliance or noncompliance with Contract Documents. NOTE: Written test reports shall be received by the 90th CEM Inspector within seven (7) Calendar days of testing.

b. Testing Frequency.

i. Testing frequency shall be completed per the contract as defined by but not limited to manufacturer’s recommendations, PWS requirements, and/or Federal/State/Local Standards & Regulations.

ii. A Line Item quantity for testing shall include all applicable tests required to adequately determine compliance with the specified requirements. Where more than one (1) test is required to achieve an evaluation, the line item quantity is still defined as one (1).

7. Equipment: The Contractor shall provide all equipment necessary to accomplish the contract work.

a. Power equipment shall be equipped with safety, noise limiting, and fume control devices. The equipment shall be in a safe and efficient operating condition.

b. Only experienced operators shall be permitted to operate the equipment.

c. Wireless power tools are not permitted in certain secured areas. Plug-in power tools will be required.

8. Quality Control: Contractor shall provide and maintain an effective quality control program.

a. The Contractor shall comply with manufacturers’ instructions and request clarifications from the 90th CEM Inspector before proceeding should the manufacturers’ instructions conflict with contract documents.

b. The Contractor shall comply with standards and references for this contract. If standards and specifications conflict, request clarification from the 90th CEM Inspector or his/her technical advisor.

9. Burning/Welding: The Contractor shall obtain an AF Form 592, Hot Work Permit (aka “Burn Permit”), at least three (3) Calendar days prior to service. Coordinate with the onsite the 90th CEM Inspector or contact 90 CES/CEM at (307) 773-2438 for requirements, initiation, and completion of permit. Contractor shall have the completed permit control number prior to any burning/welding operations.

10. Environmental Compliance: Contractor is responsible for complying with the state environmental quality regulations, and the Environmental Protection Agency Region 7 or 8 Office in Denver for any National Pollutant Discharge Elimination System (NPDES) Service General Permits. If a permit is not required by State or Federal agency with jurisdiction on federal sites, Contractor shall provide written documentation referencing reason for waiver.

11. Green Procurement Program (GPP): In performance of this contract, contractors shall use Environmental Protection Agency (EPA) designated recycled content products, Information Technology (IT) Energy Star products/appliances, Federal Energy Management Program (FEMP) Designated Energy Efficient Low Stand By Power products/appliances, U.S. Department of Agriculture (USDA) Bio based/Bio preferred products, Environmentally preferable products, Electronic Product Environmental Assessment Tool (EPEAT) registered products, Water Sense or other water efficient products, non- or Low Ozone depleting substances under the Significant New Alternatives Policy (SNAP), non or Low toxic or hazardous constituents (e.g. non-VOC paint) and any other environmentally sustainable product/method, to the greatest extent possible.

12. Safety: The Contractor is solely responsible for all safety on the project including, but not limited, to traffic control, trenching, confined space entry, equipment and materials storage, and compliance by all employees with Base Regulations.

a. Particular care shall be exercised in connection with operation of vehicles and other equipment on the site.

b. Project safety shall be coordinated with the Air Force prior to commencing service.

c. The Contractor shall notify the 90th CEM Inspector and/or escort of any emergency situation(s).

d. The Contractor shall educate each employee to ensure clear understanding of the following:

i. A review of hazards inherent in the work environment and the precautions required to reduce the hazard.

ii. The Contractor shall maintain a complete first aid kit.

iii. Location of first aid and other emergency facilities must be identified.

iv. Detailed description of what to do in case of injury, fire, or identification of a safety hazard.

v. Review of daily cleanup procedures, including location and review of company safety rules (either posted or handout).

vi. Contractor shall provide all personal protective equipment (PPE) including, but not limited to, ear plugs, goggles, face shields, gloves, safety shoes, and hard-hats. Complete instructions on where and how to use all PPE shall be given by the Contractor.

vii. All personnel shall wear PPE when required by the Contractor and/or the 90th CEM Inspector.

13. Hazardous Materials: Contractor shall coordinate all hazardous materials (HAZMAT), to include each compound or chemical intended to be utilized on the site, with 90 CES Environmental (307-773- 2594) for review and approval prior to delivery and use on the site.

a. A hazardous material is defined in Federal Standard FED/STD-313F (Tables I and II). The definition of materials presenting a health hazard or physical hazard is found in 29 CFR 1910.1200(c).

b. The HAZMAT approval documentation shall be maintained on the site and all workers shall familiarize themselves with their contents.

c. The Contractor shall be responsible for establishing a system, which tracks the procurement, delivery to site, installation, and disposal of all hazardous materials including proper disposal documents.

d. The Contractor shall be held responsible for proper cleanup and disposal of any hazardous or toxic materials spilled while completing the work in this contract. All cleanups shall be accomplished in accordance with applicable Local, State, and Federal regulations.

e. No ozone depleting substances shall be used while completing the work in this contract.

14. Site Conditions.

a. Work Area: The Contractor shall clean all work areas of debris, as well as Contractor tools, equipment, and materials. This shall be completed on a daily basis or more often, as necessary.

The work site shall be returned to a like condition in which it was found prior to start of work or to the satisfaction of the 90th CEM Inspector. This includes the exterior/interior of adjacent buildings and parking lot/access road.

b. Property Damage: Damage to Air Force property caused by Contractor vehicle(s), operations, equipment, or personnel shall be repaired at Contractor's expense with no additional cost to the Government. Skilled craftsman in the trade shall repair such damage to the satisfaction of the 90th CEM Inspector. Any suspected damage to Air Force property shall be documented and submitted to the 90th CEM Inspector with a detailed description of the type and location of damage within seventy-two (72) hours of damage.

c. Disposal of Debris: The Contractor shall dispose of all debris removed from the HVAC System in accordance with applicable federal, state, and local requirements. The MAF site waste receptacles are not authorized for Contractor use.

15. Staging/Storing: Materials and equipment not stored at Contractor’s facilities must be stored on approved Air Force property or approved adjacent private or public properties.

a. Staging/Storing on Air Force Property:

i. Contractor shall obtain written approval prior to storing on Air Force Property.

ii. The Air Force will not supply a facility for stockpile storage or material storage.

Unkempt, insecure, or unsightly storage shall not be allowed.

iii. A storage plan may be required if storage containers are to be left near the site, for security considerations.

b. Staging/Storing on Adjacent Properties:

i. Contractors not storing on Air Force property must store on adjacent private or public properties within the Limit of Potential Ground Disturbance as shown in Attachment 1.

ii. Contractor shall obtain written consent of the landowner or leaseholder as previously described.

c. Upon identification, a map detailing the staging/storing area must be submitted.

16. Red Lines: Contractor shall submit post-service (redlined), as-built drawings to 90 CES/CEM prior to project close out.

a. As-Built Drawings shall be prepared, maintained, and submitted during the service process noting all changes, revisions, discrepancies, clarifications, or any other information for the limited purpose of assessing conformance with information given and the design concept expressed in the contract documents.

i. As-Built Drawings shall be complete: showing all dimensions, geometry, location, connection, and operation of elements.

ii. Hardcopy and digital format for verification of completed work and final project closeout, utilizing AutoCAD, Autodesk Design Review or similar electronic drafting software.

b. Drawings must be marked with appropriate classifications and controlled unclassified information markings (CUI), as necessary.

c. A final report identifying any deficiencies noted and/or observed during the initial inspection completed.

17. Warranties: Thirty (30) Calendar days prior to final acceptance of each delivery order, obtain and submit written warranties for all equipment, products, goods, and services supplied under this contract.

a. Furnish with each warranty the name, address, and telephone number of the guarantor’s representative, who will honor the guarantee during the written guarantee period and will provide the service prescribed by the terms of the guarantee.

b. The equipment installed under this contract shall be guaranteed against defective materials, installation, and workmanship for a period of not less than twelve (12) months from the date of acceptance, either for the beneficial use or final acceptance, whichever is the earliest, but not before the system has passed all specified tests and been deemed acceptable for operation.

18. Required Qualifications/Certifications.

a. The Contractor shall have at a minimum, one employee performing on site, to possess a current certification: NADCA Air Systems Cleaning Specialist (ASCS), or equivalent.

b. Replacement of NADCA Team Members: Replacement of certified member(s) may occur if each new member complies with the applicable personnel qualifications and is approved by the 90th CEM Inspector.

CSI 02 – Existing Conditions

The Contractor shall perform an inspection encompassing the existing conditions of each MAF listed above.

1. The Contractor shall verify all quantities, dimensions, and existing site conditions necessary for completion of the project.

2. Before work is started, the Contractor shall develop a coordination plan with the 90th CEM Inspector for a sequence of procedure, means of access, space for storage of materials and equipment, and use of parking & driveway areas.

CSI 23 00 00 – Heating, Ventilating, and Air Conditioning (HVAC)

Specifications covers requirements for Heating, Ventilating, and Air Conditioning (HVAC).

HVAC System Evaluation

1. Visual Inspection.

a. Prior to commencement of any cleaning work performed, the Contractor shall perform a visual inspection of the HVAC system and the Dryer Vents in the presence of the 90th CEM Inspector to determine the appropriate methods, tools, and equipment required to satisfactorily complete this project.

b. Periodic inspections throughout the cleaning, the Contractor shall perform visual inspection of the HVAC system and the Dryer Vents in the presence of the 90th CEM Inspector to determine cleaning is going satisfactorily and successfully accomplishing the efforts of this contract.

c. Post inspection, the Contractor shall perform visual inspection of the HVAC system and the Dryer Vents in the presence of the 90th CEM Inspector to determine cleaning has been performed to satisfaction. Cleanliness is defined under HVAC System Evaluation, Section 3, Verification of Cleanliness, below.

2. Documentation for Prior, Periodic, and Post (PPP) Visual Inspections Performed.

a. The Contractor shall document all damaged system components discovered during the pre-inspection and submit to the 90th CEM Inspector ten (10) Calendar days after the inspection.

Clearly identify and submit an itemized written list of any damaged system components noted. Provide the itemized written list with the title, “Record of Existing Conditions,” to the 90th CEM Inspector for this project.

b. The Contractor shall document any concerns discovered, location of discovery, and corrective action(s) (if taken) during the PPP inspections performed. Recommendations for future cleaning is appreciated, (i.e. recommendation another cleaning to be conducted in “x” number of years). Submit any recommendations with the itemized list, “Record of Existing Conditions,” in CSI 23 00 00, 2(a)(i).

Cleaning Requirements

1. Containment.

a. Collect debris removed during cleaning and take precautions to ensure it is not otherwise dispersed outside the HVAC system and the Dryer Vents during the cleaning process.

2. Particulate Collection Equipment (PCE).

a. Exhausting Inside the Building. Use HEPA filtration with 99.97 percent collection efficiency for 0.3 micron size (or greater).

b. Exhausting Outside the Building.

i. Undertake Mechanical Cleaning Operation only with PCE including adequate filtration to contain debris removed from the HVAC system and the Dryer Vents.

ii. Take precautions to locate the equipment down wind and away from all air intakes and any other points of entry into the building.

3. Controlling Odors. Take all reasonable measures to control offensive odors and/or mist vapors during the cleaning process.

4. Component Cleaning.

a. Employ cleaning methods such that all HVAC system components and the Dyer Vent components are Visibly Clean as defined in applicable standards.

b. Upon completion, return all components to those settings recorded just prior to cleaning operations.

5. Air-Volume Control Devices.

a. Mark the position of dampers and any air-directional mechanical devices inside the HVAC system prior to cleaning.

b. Upon completion, restore to their marked position.

6. Service Openings.

a. Utilize service openings, as required for proper cleaning, at various points of the HVAC system for physical and mechanical entry, and inspection.

b. Disconnect flexible duct at the ends as needed for proper cleaning and inspection.

c. Existing Service Openings. Utilize already installed service openings in the HVAC system where possible.

d. Creating New Service Openings.

i. Create service openings where needed, created, and resealed in conformance with NADCA Standard 05.

ii. Conform service techniques used in the creation of openings to requirements of applicable building and fire codes, and applicable NFPA, SMACNA and NADCA Standards.

iii. Cutting service openings into flexible duct is not permitted

e. Closures.

i. Place closures as to not significantly hinder, restrict, alter the airflow within the system, or compromise the structural integrity of the system.

ii. Clearly mark all service openings, capable of being re-opened for future inspection or remediation, and report their location in project report documents.

iii. Properly insulate closures to prevent heat loss/gain or condensation on the surfaces within the system.

iv. Reseal rigid fiber glass duct board duct systems in accordance with NAIMA recommended practices; NAIMA AH112, NAIMA AH122, and AH127. Only closure techniques which comply with UL 181, UL 181A, or UL 181B are suitable for fiber glass duct system closures.

7. Ceiling Sections (Tile).

a. Carefully remove and reinstall ceiling sections to gain access to HVAC systems during the cleaning process.

b. Replace any damaged ceiling sections caused by the removal at no cost to the Government with like-kind.

8. Air Distribution Devices (Registers, Grilles and Diffusers). Clean all air distribution devices.

9. Air Handling Units, Terminal Units, Blowers and Exhaust Fans.

a. Ensure that supply, return, and exhaust fans and blowers are thoroughly cleaned. Areas to be cleaned include blowers, fan housings, plenums (except ceiling supply and return plenums), scrolls, blades, or vanes, shafts, baffles, dampers, and drive assemblies.

b. Remove all visible surface contamination deposits in accordance with NADCA Standards.

i. Clean all air handling unit (AHU) internal surfaces, components and condensate collectors and drains.

ii. Assure that a suitable operative drainage system is in place prior to beginning wash down procedures.

iii. Clean all coils and related components, including evaporator fins.

10. Duct Systems: Mechanically clean all duct systems to remove all visible contaminants in accordance with the NADCA Standards.

11. Dryer Vents: Mechanically clean all Dryer Vents to remove all visible contaminants in accordance with the NADCA Standards.

12. Equipment: Equipment utilized shall conform to NADCA Standards for HVAC Systems and DEDP Systems.

13. Disposal of Debris: Dispose of all debris removed from the HVAC System in accordance with applicable federal, state, and local requirements.

Types of Mechanical Cleaning Methodology

1. Source Removal Cleaning Methods

a. Clean the HVAC system using Source Removal Mechanical Cleaning Methods designed to extract contaminants from within the HVAC System. Safely remove contaminants from the facility.

b. Select Source Removal Methods which will render the HVAC System Visibly Clean and capable of passing cleaning verification methods, NADCA Standards, and any other specified standards and tests in accordance with all general requirements.

c. Use no cleaning method, or combination of methods, which could potentially damage components of the HVAC system or negatively alter the integrity of the system.

d. Incorporate the use of vacuum collection devices that are operated continuously during cleaning for all methods used.

i. Connect a vacuum device to the downstream end of the section being cleaned through a predetermined opening.

ii. Use a vacuum collection device of sufficient power to render all areas being cleaned under negative pressure, such that containment of debris and the protection of the indoor environment is assured.

iii. Inside the Building. Equip all vacuum devices exhausting air inside the building, including hand-held vacuums and wet vacuums, with HEPA filters (minimum efficiency).

iv. Outside the Building.

1. Equip all vacuum devices exhausting air outside the facility with Particulate Collection including adequate filtration to contain Debris removed from the HVAC system, in a manner that will not allow contaminants to re-enter the facility.

2. Release of debris outdoors violates any outdoor environmental standards, codes or regulations is not allowed.

v. All methods require mechanical agitation devices to dislodge debris adhered to interior HVAC system surfaces, such that debris may be safely conveyed to vacuum collection devices. Acceptable methods will include those which will not potentially damage the integrity of the ductwork, nor damage porous surface materials such as liners inside the ductwork or system components.

Methods of Cleaning Fibrous Glass Insulated Components

1. Cleaning Fibrous Glass Insulated Components. Thoroughly clean glass thermal or acoustical insulation elements present in any equipment or ductwork with HEPA vacuuming equipment, while the HVAC system is under constant negative pressure, and not permitted to get wet, in accordance with applicable NADCA and NAIMA Standards and recommendations.

2. Unacceptable Methods. Do not use cleaning methods which cause damage to fibrous glass components, or which will render the system capable of passing the Cleaning Verification Tests in accordance with NADCA Standards.

3. Damaged Fibrous Glass Material. If there is any evidence of damage, deterioration, delamination, friable material, mold or fungus growth, or moisture such that fibrous glass materials cannot be restored by cleaning or resurfacing with an acceptable insulation repair coating, identify them for replacement.

4. Cleaning of Coils.

a. Use any cleaning method which will render the Coil Visibly Clean and capable of passing Coil Cleaning Verification applicable NADCA Standards.

b. Coil drain pans are subject to Non-Porous Surfaces Cleaning Verification. The Contractor shall maintain operability of the drain for the condensate.

c. Do not damage, displace, inhibit heat transfer, or cause erosion of the coil surface or fins, and conform to coil manufacturer recommendations when available. Thoroughly rinse coils with clean water to remove any latent residues.

5. Antimicrobial Agents and Coatings.

a. Antimicrobial Agents.

i. Only apply antimicrobial agents if active fungal growth is reasonably suspected, or where unacceptable levels of fungal contamination have been verified through testing. Perform application of any antimicrobial agents used to control the growth of fungal or bacteriological contaminants after the removal of surface deposits and debris.

ii. Use only antimicrobial agents registered by the U.S. Environmental Protection Agency (EPA 402-F-91-102) (EPA 402-C-01-001) specifically for use within HVAC system. Apply antimicrobial agents in strict accordance with manufacturer's instructions.

b. Antimicrobial Coatings.

i. Use only EPA registered antimicrobial coating products water soluble solutions (for both porous and non-porous surfaces) with supporting efficacy data and SDS records.

ii. Apply antimicrobial coatings according to manufacturer's instructions.

iii. Spray coatings directly onto interior ductwork surfaces, rather than "fog" downstream onto surfaces.

iv. Achieve a continuous film on the surface to be treated by the coating application, and apply in strict accordance with the manufacturer's minimum millage surface application rate standards for effectiveness.

Verification of Cleanliness

1. Verification Period. Verification of HVAC system and the Dryer Vents cleanliness will be determined after mechanical cleaning and before the application of any treatment or introduction of any treatment-related substance to the HVAC system and the Dryer Vents, including antimicrobial agents and coatings.

a. Visual Inspection: Visually inspect the HVAC system and the Dryer Vents to ensure that no visible contaminants are present. If no contaminants are evident through visual inspection, consider the HVAC system and the Dryer Vents clean; however, further verification of the system cleanliness through gravimetric or wipe testing analysis testing may be requested at the discretion of the 90th CEM Inspector.

i. Re-performance. If visible contaminants are evident through visual inspection, re-clean those portions of the system where contaminants are visible, and subject to re-inspection for cleanliness.

ii. Testing Frequency: Throughout the project, testing (videoing) shall be completed verifying debris has been removed successfully.

b. Gravimetric Analysis: If necessary, a gravimetric analysis test maybe requested for all sections of all four (4) zones of the HVAC system for cleanliness using the NADCA Vacuum Test (gravimetric analysis) as specified in applicable NADCA Standards. Levels of debris collected are to be equal to or less than acceptable levels defined in applicable NADCA Standards. If gravimetric analysis determines that levels of debris are equal to or lower than those levels specified, the system is considered clean and to have passed cleanliness verification. If gravimetric analysis determines that levels of debris exceed those specified in applicable NADCA Standards, the system will not be considered clean, and re-cleaning of those sections of the system which failed cleanliness verification will be required at the expense of the HVAC system cleaning contractor. Perform cleanliness verification immediately after mechanical cleaning and before the HVAC system is restored to normal operation

c. Verification of Coil Cleaning: Cleaning is to restore the coil pressure drop to within 10 percent of the pressure drop measured when the coil was first installed. If the original pressure drop is not known, the coil will be considered clean only if the coil is free of foreign matter and chemical residue, based on a thorough visual inspection (refer to current NADCA HVAC Inspection Manual Standards).

2. Conclusion of Cleaning: Success of the cleaning project is dependent upon verification by CEM Inspector that the cleaning passed a visual inspection and/or gravimetric analysis in accordance with this section of the PWS. No changes in this PWS are authorized unless cleared by the Contracting Officer.

APPENDIX A – References

The following documents, standards, and regulations below are incorporated into the PWS by reference.

The Contractor is responsible for incorporating all procedures and policies described by the following references into all work performed under this PWS. Any updates to these references shall supersede the corresponding reference and apply to the contract.

1. 130005 Environmental Specifications (JAN 2023), Section 01 57 19.05 32, Environmental Protection.

2. AFMAN 32-7002, Environmental Compliance and Pollution Prevention (04 FEB 20).

3. American National Standards Institute/Institute of Inspection Cleaning and Restoration Certification

(ANSI/IICRC).

4. American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE).

a. ASHRAE 62.1, Ventilation and Acceptable Indoor Air Quality

5. Code of Federal Regulations (CFR):

a. Title 29 CFR § 1910, Occupational Safety and Health Standards (OSHA)

b. Title 40 CFR, Protection of the Environment

i. Part 82, Subpart F, Recycling and Emissions Reduction

ii. Part 247, Comprehensive Procurement Guideline for Products Containing Recovered Materials

iii. Part 260 through 268.

iv. Part 302, Designation, Reportable Quantities, and Notification

6. Federal Standard (FED-STD) 313F, Material Safety Data, Transportation Data and Disposal Data for Hazardous Materials Furnished to Government Activities (12 OCT 18).

7. National Air Duct Cleaners Association (NADCA):

a. ACR, The NADCA Standard for Assessment, Cleaning & Restoration of HVAC Systems.

b. Dryer Exhaust Duct Performance (DEDP).

c. General Specifications for the Cleaning of Commercial HVAC Systems.

d. HVAC Inspection Manual.

8. National Fire Protection Association (NFPA):

a. NFPA 90A, Standard for the Installation of Air-Conditioning and Ventilating Systems.

b. NFPA 90B, Standard for the Installation of Warm Air Heating and Air-Conditioning Systems.

9. North American Insulation Manufacturers Association (NAIMA):

a. NAIMA AH112, Cleaning Fibrous Glass or Lined Sheet Metal Ducts.

b. NAIMA AH122, Cleaning Fibrous Insulated Duct Systems – Recommended Practices.

c. NAIMA AH127, Impact of Duct Cleaning on Internal Duct Insulation.

10. Sheet Metal and Air Conditioning Contractor’s National Association (SMACNA):

a. HVAC Duct Construction Standards – Metal and Flexible.

11. U.S. Environmental Protection Agency (EPA).

a. EPA 402-F-91-102, Building Air Quality: A Guide for Building Owners and Facility Managers

12. Underwriters’ Laboratories (UL):

a. UL Standard 181, UL Standard for Safety Factory-Made Air Ducts and Connectors.

b. UL Standard 181A, UL Standard for Safety Closure Systems for Use With Rigid Air Ducts.

c. UL Standard 181B, Standard for Closure Systems for Use With Flexible Air Ducts and Air Connectors.

d. UL Standard 723, Standard for Test for Surface Burning Characteristics of Building Materials.

13. United States Code (USC):

a. Title 18 USC § 793, Gathering, Transmitting, or Losing Defense Information