B08_Attachment_1_-_GEWA_305342_-_Specifications.pdf

GEORGE WASHINGTON

BIRTHPLACE

NATIONAL MONUMENT

1732 Popes Creek Road Colonial Beach, VA 22443

Upgrade HVAC System at Memorial House Museum

PMIS No.: 305342

February 9, 2026

National Park Service U.S. Department of the Interior

Northeast Region

PROJECT MANUAL

Upgrade HVAC System George Washingtons Birthplace National Monument PMIS # 305342

February 2026 PROJECT MANUAL COVER 00 01 00 - Page 2 of 2

FRONT COVER:

George Washington Birthplace National Monument Mailing Address:

George Washington Birthplace National Monument 1732 Popes Creek Road

Colonial Beach, VA 22443

To review general information about

George Washingtons Birthplace National Monument please visit:

www.NPS.gov/GEWA http://www.nps.gov/GEWA

George Washington Birthplace National Monument PMIS # 305342

February 2026 TABLE OF CONTENTS 00 00 01 - Page 1 of 2

TABLE OF CONTENTS

01 00 00 GENERAL REQUIREMENTS

01 10 00 SUMMARY OF WORK

01 26 01 CONTRACT MODIFICATION PROCEDURES

01 27 00 DEFINITION OF CONTRACT LINE ITEMS

01 31 00 PROJECT MANAGEMENT AND COORDINATION

01 32 16 CONSTRUCTION SCHEDULE

01 32 33 PHOTOGRAPHIC DOCUMENTATION

01 33 00 SUBMITTAL PROCEDURES

01 35 13.22 ARCHEOLOGICAL PROTECTION

01 35 23 SAFETY REQUIREMENTS

01 35 91 HISTORIC PRESERVATION TREATMENT PROCEDURES

01 40 00 QUALITY REQUIREMENTS

01 42 00 REGERENCE STANDARDS

01 67 00 PRODUCT REQUIREMENTS

01 73 29 CUTTING AND PATCHING

01 73 40 EXECUTION

01 74 19 CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

01 77 00 CLOSEOUT PROCEDURES

01 78 23 OPERATION AND MAINTENANCE DATA

01 79 00 DEMONSTRATION & TRAINING

02 41 19 SELECTIVE DEMOLITION

03 10 00 FORMWORK

03 30 00 CAST-IN-PLACE CONCRETE

23 01 30.51 HVAC AIR-DISTRIBUTION SYSTEM CLEANING-EXISTING SYSTEMS

23 05 00 COMMON WORK RESULTS FOR HVAC

23 05 13 COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

23 05 14 VARIABLE-FREQUENCY CONTROLLERS

23 05 29 HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

23 05 48 VIBRATION AND SEISMIC CONTROLS FOR HVAC

23 05 53 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

23 05 93 TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 07 00 MECHANICAL INSULATION

23 08 00 COMMISSIONING OF HVAC

23 09 00 HVAC INSTRUMENTATION AND CONTROLS

23 09 93 SEQUENCE OF OPERATIONS FOR HVAC CONTROLS

23 21 00 HYDRONIC PIPING DISTRIBUTION SYSTEMS

23 21 13.13 UNDERGROUND HYDRONIC PIPING

23 25 00 HVAC WATER TREATMENT

23 31 13 AIR DISTRIBUTION SYSTEMS-METAL DUCTS

23 33 00 AIR DUCT ACCESSORIES

23 52 23 CAST-IRON BOILERS

23 65 00 COOLING TOWERS

February 2026 TABLE OF CONTENTS 00 00 01 - Page 2 of 2

23 81 46.13 WATER-TO-AIR HEAT PUMPS

26 00 10 GENERAL ELECTRICAL PROVISIONS

26 05 19 LOW-VOLTAGE ELECTICAL POWER CONDUCTORS AND CABLES

26 05 33 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

26 28 16 ENCLOSE SWITCHES AND CIRCUIT BREAKERS

31 00 00 EARTHWORK

32 11 00 BASE COURSE

32 13 13 CONCRETE PAVING

32 31 13 CHAIN LINK FENCES AND GATES

32 92 00 SEEDING, FERTILIZING, MULCHING

32 92 05 TOPSOIL

33 44 13 STORM UTILITY DRAINS

February 2026 GENERAL REQUIREMENTS 01 00 00 -Page 1 of 7

SECTION 01 00 00 - GENERAL REQUIREMENTS

PART 1 - GENERAL

1.1 INTENT AND ARRANGEMENT OF DOCUMENTS

A. The specifications and drawings are intended to include everything necessary to perform the entire work properly. Every item necessarily required may not be specifically mentioned or shown. Unless expressly stated, all systems and equipment shall be complete and operable.

B. Titles and headings to divisions, sections and paragraphs in these contract documents are introduced for convenience and shall not be taken as a correct or complete segregation of the several units of materials and labor. No responsibility either direct or implied is assumed by the government for omissions or duplications by the contractor or the contractor's lower-tier contractors, due to real or alleged error in arrangement of matter in the subcontract documents.

C. The terms of the contract, general provisions, and general requirements apply to each division of these specifications as fully as if repeated within that division.

D. Items listed under scope of work for each division of the specifications are not necessarily all inclusive. The contractor shall be responsible for the complete job.

E. Portions of these specifications are of the abbreviated, simplified type and may include incomplete sentences.

1. Omissions of words or phrases such as: the contractor shall, in conformity with, shall be, as noted on the drawings, in accordance with details, a, the, and all are intentional.

Omitted words or phrases shall be supplied by inference in the same manner as they are when a note occurs on the drawings.

2. Such terms as: approved, reviewed, equal, as directed, as required, as permitted, acceptable, and satisfactory mean by or to the government.

1.2 DEFINITIONS AND STATUS OF INDIVIDUALS

A. The terms defined in the contract, general conditions, and general provisions shall apply throughout. Certain additional terms and refinements shall apply as specified below.

B. Owner: the term “Owner” or “government” shall mean the United State Government, Department of the Interior, National Park Service.

C. Government: the term “government” shall mean the person duly authorized by the Owner to act as the Contracting Officer; and person or persons duly authorized by the Contracting Officer.

D. Contracting Officer (CO) shall mean the official Government Representative for the Project.

The CO shall be assigned by the Government and made known to the Contractor at the time of Award. The CO's contact information shall be issued at that time.

1. The designation of Contracting Officer (CO) may include:

a. Contracting Officer's Representative (COR).

b. Any other designated person as selected by the Government.

2. Lines of communication between the Government, the CO and the Contractor will be covered at the Preconstruction Meeting.

E. Contracting Officer’s Representative (COR): the term “contracting officer’s representative” shall mean the person designated by the contracting officer to be a liaison between the government and the contractor. During the construction phase, all submittals and

February 2026 GENERAL REQUIREMENTS 01 00 00 -Page 2 of 7 communications with the government. The COR will administer the technical requirements of the subcontract and will coordinate the inspection of the work.

F. Contractor shall mean the company or individual that holds the Contract for the Work of this Project with the Government.

1. Where the word Contractor is used throughout these documents it shall mean the Contractor and all applicable subcontractors.

2. The Contractor shall be responsible for ensuring that all subcontractors receive all pertinent information and perform the Work in compliance with the Project Documents.

G. Period-of-Performance (Construction Period) shall mean the period designated in the Project Documents as the time frame, in calendar days, during which the Work of the Project will be performed.

1. See Division 01 Section “Project Schedule” for communication and coordination requirements.

H. See Division 01, section “Definition of Contract Price Schedule Line Items” for definitions of line items to be included on the Contract Price Schedule.

1.3 CODES

A. Applicable provisions of the Virginia Uniform Statewide Building Code (USBC) and the codes and regulations of the Department of Energy are hereby referred to and made a part of this contract. All work performed shall be in accordance with such laws, codes, and regulations.

The latest edition or supplement or amendment thereto in effect at the time of submittal of bid shall be the issue in effect (unless shown otherwise) of all applicable laws, codes, and regulations including, but not limited to:

1. Virginia Uniform Statewide Building Code

2. NFPA 70 National Electrical Code

3. NFPA 72 National Fire Alarm and Signaling Code

4. Energy Conservation Performance Standards, 10 Code of Federal Regulations (CFR), Part 435 (mandatory for federal buildings)

B. Where codes or standard specifications other than those listed in this paragraph are referred to in the different Divisions of these Specifications, it is understood that they apply as fully as if cited here.

C. Where differences exist between codes affecting this work, the code affording the greatest protection to the government shall govern.

D. If the contractor observes that these drawings and specifications are at variance with the codes, the contractor shall notify the project manager in writing at once for resolution.

E. Pursuant to labor codes contractor shall include in its base bid all costs for provision of adequate sheeting, shoring, bracing, or equivalent method for the protection of life or limb, in conformance with applicable federal and state safety orders.

F. Maintenance clearances shall be maintained around equipment as required by the plans and specifications and/or codes and standards, and as recommended by the equipment manufacturers. The maintenance envelope and equipment access shall be kept clear of any permanent obstruction. It is the contractor’s responsibility to enforce these requirements with all lower-tier subcontractors. The contractor and lower-tier subcontractors shall be responsible for correcting any infringement on this requirement at no cost to the government.

February 2026 GENERAL REQUIREMENTS 01 00 00 -Page 3 of 7

1.4 CONSTRUCTION LIMITS

A. The area to be set aside for the work under this contract is shown on the drawings, and the contractor shall confine the construction to the immediate area within the construction limits.

1.5 PARKING—THE USE OF ROADS—SITE ACCESS

A. Parking: Parking for private vehicles is limited. Parking for contractors, sub-tier contractors and their workers will be limited to the construction limits and as agreed with the government.

B. Site access: The site is open daily at 8:00 A.M. and closes at 4:00 P.M. Access at other times must be coordinated with the government.

C. Permission for access to the site may be revoked for any and all persons who violate the university traffic regulations including speed limits, parking restrictions, and directions of the university police. All of the contractor's personnel, operating forces, and delivery personnel shall be made aware of and shall comply with traffic regulations at all times.

1.6 COORDINATION OF WORK

A. The contractor shall coordinate and schedule the work of all its lower-tier subcontractors, and shall furnish all information required by them for proper scheduling and execution of the work.

B. In the same manner, the contractor shall coordinate the work with that of the government including reasonable adjustments of schedule in order for other government operations to be conducted.

1.7 INFORMATION TRANSMITTAL

A. Materials and Equipment:

1. The contractor shall submit a complete list of all materials and equipment to be incorporated in the work. Unless a specific time limit for this submittal is established within the provisions of these specifications, this shall be done with such promptness as not to cause delay to the work.

2. All materials and equipment shall be new and within one year of manufacture. No rebuilt, refurbished, remanufactured, or used equipment and materials shall be installed under this project.

3. All project materials shall be furnished in accordance with the Buy American Act, FAR Clause 52.225-9. Requests for waivers per this clause should be submitted with the bid documents.

B. Record drawings

1. The contractor shall maintain at the site a complete, precise, accurate, dimensioned record of actual locations of the work, including concealed and embedded work, size and type of equipment, and every change or deviation from original subcontract drawings.

The contractor shall keep this record legible and correct weekly as the job progresses on black or blue line prints. The contractor shall keep record drawings available for inspection at all times. Record drawings will be inspected before approval of requests for payment.

2. It shall be the responsibility of the contractor to submit to the project manager within ten

(10) days after final inspection, one (1) complete marked-up set of subcontract drawings fully illustrating all revisions made by all the crafts in the course of the work. This shall

February 2026 GENERAL REQUIREMENTS 01 00 00 -Page 4 of 7 include all field changes, adjustments, variances, substitutions and deletions, whether covered by change order or not. Underground utility installations must be located precisely as constructed on the marked-up drawings.

1.8 WORK RESTRICTIONS – USE OF PREMISES

A. Contractor's Use of Premises: During construction, Contractor will have limited use of site as indicated on drawings and as confirmed by the Government. Contractor's use of premises is limited only by Government's right to perform work, maintain public access and/or employ other contractors on portions of Project and as follows:

1. The Site will be occupied by Government employees throughout the course of the work.

2. Government employees, park visitors and the public will occupy and use the area surrounding the Project Site throughout the Construction Period.

3. Limits: Throughout the entire duration of the Project, including all Phases of the Work, confine all operations to the limits shown on the Construction Documents.

a. No site, land or earth disturbance shall occur for this Project without written approval of the Government.

4. Driveways, Walkways, and Entrances: Entrances serving premises, driveways pathways, pedestrian areas, sidewalks, parking areas and loading areas shall be kept clear and available to the Government, the public, park visitors and emergency vehicles at all times, unless otherwise agreed to in advance by the Government. Do not use these areas for staging, parking of vehicles or equipment, or storage of materials.

5. Storage of materials and products: Confine to immediate worksite as directed by the Government. Contractor is allowed a storage container on the Project Site at a location mutually agreeable between Contractor and the Government.

6. Preservation of Adjacent Finishes, Contents and Grounds: Prevent damages to adjacent finishes and grounds. Restore all damages, repairing and/or replacing damaged elements to their original condition prior to damage, with no additional costs to the Government.

7. Existing Utilities and Utility Interruption: Notify the Government and utility company in writing of any proposed disturbances or planned interruptions of existing utilities.

Contractor shall submit a Plan of Operations for utility disturbance.

a. Contractor shall be responsible for locating and preventing damage to known utilities. If any damage occurs, contractor shall take action relative thereto and repair utility at no additional expense to the Government. No additional time shall be added to Contract for repairs from damages. Repairs shall commence immediately and be carried out expeditiously and in a professional manner pursuant to and compliant with all federal, state and local codes and regulations, as applicable.

b. If damage occurs to an unknown utility, Contractor shall repair and reconnect utility immediately. An equitable adjustment shall be made in accordance with the Changes clause of the Contract.

c. Interruption of Existing Utility Service: Contractor shall notify the Government forty-eight (48) hours in advance of utility interruption, and interruption shall be permitted with prior consent of the Government. Two (2) hours is the maximum time allowed for planned utility disruptions unless otherwise approved by the Government in writing.

8. Hauling Restrictions: Contractor shall comply with all US DOT, State DOT and local legal load restrictions in the transport of all materials and products for the Project. The Government reserves the right to impose additional hauling restrictions within Park Boundaries.

February 2026 GENERAL REQUIREMENTS 01 00 00 -Page 5 of 7

a. Contractor is responsible for obtaining any and all permits, special or otherwise, required by authorities having jurisdiction that may be necessary for utilization of adjacent roads for construction operations.

b. Possession of a Permit by Contractor shall not relieve Contractor of liability for damage which may result from construction operations in utilization of said streets and sidewalks.

9. Contractor at all times shall conduct his operations to ensure the safety for all and minimize any inconveniences to the public. All operations shall be compliant with OSHA and other authorities’ regulations, including state and local bodies, having jurisdiction.

B. On-Site Work Hours: Limit work hours to normal business working hours of 8:00 a.m. to 4:00 p.m., Monday through Friday, unless otherwise indicated.

1. Weekend Hours: Weekend work may be permitted with written authorization of the

Government.

2. Early Morning Hours: Early morning work may be permitted, with written authorization of the Government.

C. Non-smoking Building/Premises: Smoking is not permitted within the limits of the Project Site and Park grounds.

D. The following items are prohibited on the premises, including the Project Site and Park grounds:

1. Firearms

2. Ammunition

3. Alcohol

4. Pets

E. All Contractor’s commercial vehicles, including material and product delivery vehicles, shall be equipped with fire extinguishing equipment and first aid supplies as required by U.S. DOT and state DOT.

F. Parking: Contractor shall park all commercial and personal vehicles in areas designated by the Government. Contractor is responsible for managing and coordinating parking for personnel, subcontractors and their personnel and deliveries in a legal manner that does not conflict with site usage by the Government.

1.9 HISTORIC NATURE OF PROJECT, PROJECT SITE AND SURROUNDS

A. The Contractor shall note and respect the historical significance of the Project, Project Site and surrounds where the work will be performed. Due to this, certain aspects of the Work of this Project may not be performed in a manner and/or with methods commonplace in the current construction industry of today. It shall be incumbent upon the Contractor to furnish mechanics capable of executing first-class workmanship in the materials and methods specified, and who have the knowledge and experience to take any and all necessary precautions to protect elements of historic significance, structural and decorative, not scheduled to receive work.

B. See Division 01, Sections “Historic Preservation Treatment” and “Photo Documentation for Historic Projects” for further requirements.

February 2026 GENERAL REQUIREMENTS 01 00 00 -Page 6 of 7

1.10 ARCHEOLOGICAL FINDINGS

A. While this project requires only minimal ground disturbance, the Contractor is advised that there may be archeological remains in the area surrounding the site. In the unlikely event that archeological objects are observed or encountered during the project, the Contractor will notify park staff and the park archeologist immediately. Artifacts, structural features, domestic and/or archeological objects of nature, historic or prehistoric, above or sub-surface, found within the construction work area or otherwise on the premises, are and shall remain the property of the government.

B. In the unlikely event that archeological objects are observed or encountered during the project, the Contractor will notify park staff and the park archeologist immediately.

C. See Division 01 Section “Archeological Findings” for further requirements.

1.11 HAZARDOUS MATERIALS

A. If any additional Hazardous Material is encountered, all work shall stop in the area of the encounter and Contractor shall notify the Government immediately of discovery and its extent as known. Contractor shall not work in the encounter area until a resolution is established.

1. Contractor shall continue work in all other areas of the Project without interruption or delay, or

2. Contractor shall adjust work and/or begin other work on the Project that is not dependent upon the encounter area.

B. Should the temporary suspension of work at the site due to the discovery result in delays, re-mobilization or in additional work, Contractor will be compensated by an equitable adjustment under the Changes clause of the Contract.

1.12 FINAL ACCEPTANCE

A. Notice that the work is ready for final inspection and acceptance shall consist of a written notice issued to the COR by the contractor stating that the contractor has carefully inspected all portions of the work, has reviewed in detail the drawings and specifications, and that to the best of the contractor's knowledge all requirements and conditions of the contract documents have been fulfilled.

B. Upon receipt of this notice, the COR and the contractor shall make a joint inspection of the work. After deficiencies, if any, have been corrected or accounted for, and after all work is satisfactorily complete, the government will accept the work; and a notice of completion will be filed by the government.

C. Prior to final acceptance, filing of the notice of completion or processing of final payment, the following documents shall be submitted, reviewed, and accepted by the government:

1. Certificates of compliance and performance guarantees and manufacturers’ warranties required under various sections.

2. Record drawings: per paragraph 1.8.g.

3. Operating and maintenance manuals.

4. Instruction of government personnel, as required.

5. All required operations tests.

February 2026 GENERAL REQUIREMENTS 01 00 00 -Page 7 of 7

PART 2 - PRODUCTS

2.1 GENERAL

A. See Division 1 Section “Product Requirements” and individual Specifications Sections for requirements.

PART 3 - EXECUTION

3.1 GENERAL

A. The Project shall be executed, and all construction activities completed by the Contractor as required by the Contract Documents.

B. See individual Specification Sections for specific Execution requirements.

3.2 HOUSEKEEPING

A. The Contractor shall maintain the site in a neat, orderly, and safe condition at all times.

3.3 FINAL CLEANING

A. General: Provide final cleaning. Conduct cleaning and waste-removal operations to comply with local laws and ordinances and Federal and local environmental and antipollution regulations.

B. Complete the following cleaning operations before requesting inspection for certification of Substantial Completion for entire Project or for a portion of Project:

1. Clean Project site, yard, and grounds, in areas disturbed by construction activities, including landscape development areas, of rubbish, waste material, litter, and other foreign substances.

2. Sweep paved areas broom clean. Remove petrochemical spills, stains, and other foreign deposits.

3. Rake grounds that are neither planted nor paved to a smooth, even-textured surface.

4. Remove tools, construction equipment, machinery, and surplus material from Project site.

5. Waste Disposal: Remove all project generated waste from site and dispose of it in a legal manner.

END OF SECTION 01 00 00

April 2025 SUMMARY OF WORK 01 11 00 - Page 1 of 7

SECTION 01 11 00 – SUMMARY OF WORK

1.1 SECTION INCLUDES

A. The Work of this Section includes the following:

1. Project Information

2. Summary of Work

3. Definitions

4. Site Examination

5. Field Verification

6. Intent and Arrangement of Documents

7. Work covered by the Project Documents, including this Project Manual and Drawings

8. Work under separate contracts,

9. Work Restrictions / Use of Premises

10. Governments and the public's occupancy requirements

11. Historic Nature of Project

12. Archeological Findings

13. Hazardous Materials

1.2 PROJECT INFORMATION

Project Name: Upgrade HVAC System Units at Memorial House Museum at George Washington Birthplace

1. Park Alpha Code: GEWA

2. PMIS Nos: 305342

3. Owner: United States Department of the Interior, National Park Service

4. Park Address: 1731 Popes Creek Road, Colonial Beach, VA 23223

5. Project Location: Memorial House Museum

B. Any Project Information, including that requested through a Request for Information (RFI), shall be transmitted by e-mail in the appropriate format per the type of document being transmitted. Pending the size of the electronic data file(s), the Government may elect to utilize its FTP site where the receiver must be invited by the Government to access and retrieve the information and the receiver must accept all conditions and regulations relating to such.

1.3 SUMMARY OF WORK

A. The implied intent of the Project is to ensure the life safety, health and well-being of all users and preserve the historic fabric of the Project components.

B. The Work of the Project consists of furnishing all materials, labor, equipment, and supervision as required for the Project by the Project Documents; as required by applicable codes and regulations; and as required by site conditions.

C. The work includes, but may not be limited to, the following:

1. Replace HVAC System at the Memorial House .

a. Demolish and remove existing water-source heat pumps, associated piping, and boiler equipment as indicated.

b. Furnish and install new water-source heat pumps, including all required connections, supports, and accessories.

April 2025 SUMMARY OF WORK 01 11 00 - Page 2 of 7

c. Remove and replace existing hydronic and condenser water piping as required, including valves, insulation, and specialties.

d. Furnish and install a new boiler system, including pumps, flue/venting, expansion tank, and safety devices.

e. Furnish and install a new cooling tower, including basin accessories, make-up water, blowdown, structural supports, and condenser water piping tie-ins.

f. Tie in and integrate the existing/new ground source heat pump (GSHP) loop with the overall system and controls as required.

g. Provide new or modified automatic temperature controls (ATC) for all systems, including integration with the building automation system (BAS).

h. Perform startup, testing, adjusting, and balancing (TAB) of all mechanical systems.

i. Commission the complete heating and cooling systems, including functional performance testing, controls verification, and operator training.

j. Provide as-built documentation, O&M manuals, and warranty information at project closeout.

D. Work shall be completed as required by all applicable prevailing codes, including but not limited to the International Building Code, latest edition including all state and local amendments and other codes, as applicable.

E. Weather protection shall mean the temporary protection of that work adversely affected by moisture, wind, heat, and cold by covering, patching, sealing, enclosing, ventilating, cooling and/or heating. This protection shall be provided for all work areas, the building, and its contents, trafficked adjacent areas, and all construction materials and accessories. Each trade will be responsible for his/her own weather protection as it relates to the work scope.

F. The Contractor shall perform the work in a manner as to minimize interference with the operation of the facility. The Contractor shall provide a Method-of-Procedure (MOP), for each building that clearly explains the method(s) proposed to implement the work within the limits of the Contract.

G. Throughout the duration of the Work of this Project the Contractor shall be fully responsible for maintaining the climate, within the structure, required to preserve the historic fabric and characteristics of the structure.

H. Contractor shall provide safe OSHA compliant access to the work areas for all personnel, for the moving of equipment and materials and to allow for Government Inspections.

I. Throughout the duration of the Work of this Project the Contractor shall be fully responsible for maintaining the weather-tightness of all portions of the structure.

1. Contractor or his authorized representative shall be available on two hours’ notice, twenty-four hours a day for the duration of this Project, to repair and prevent any and all leaks related to the Work.

2. The Contractor shall furnish the Government with the name (s) and personal telephone number(s) of person(s) that will respond in the event of an emergency.

J. Contractor shall provide safe OSHA compliant access to the work areas for all personnel, for the moving of equipment and materials and to allow for Government Inspections.

April 2025 SUMMARY OF WORK 01 11 00 - Page 3 of 7

1.4 PROJECT DOCUMENTS

A. In the event of a discrepancy between the requirements of the Specifications and/or Drawings and the Federal Acquisition Regulations (FAR), the FAR shall govern. The FAR can be accessed on the internet:

1. https://www.acquisition.gov/far

B. In case of a discrepancy either in the figures, in the Drawings, or in the Technical Specifications, the matter shall be promptly submitted to the Government, who will decide in writing. Any adjustment by the Contractor without such a determination will be at their own risk and expense.

1.5 INTENT AND ARRANGEMENT OF DOCUMENTS

A. The specifications and drawings are intended to include everything necessary to perform the entire work properly. Every item necessarily required may not be specifically mentioned or shown. Unless expressly stated, all systems and equipment shall be complete and operable.

B. Titles and headings to divisions, sections and paragraphs in these contract documents are introduced for convenience and shall not be taken as a correct or complete segregation of the several units of materials and labor. No responsibility either direct or implied is assumed by the government for omissions or duplications by the contractor or the contractor's lower-tier contractors, due to real or alleged error in arrangement of matter in the subcontract documents.

C. The terms of the contract, general provisions, and general requirements apply to each division of these specifications as fully as if repeated within that division.

D. Items listed under scope of work for each division of the specifications are not necessarily all inclusive. The contractor shall be responsible for the complete job.

E. Portions of these specifications are of the abbreviated, simplified type and may include incomplete sentences.

1. Omissions of words or phrases such as: the contractor shall, in conformity with, shall be, as noted on the drawings, in accordance with details, a, the, and all are intentional.

Omitted words or phrases shall be supplied by inference in the same manner as they are when a note occurs on the drawings.

2. Such terms as: approved, reviewed, equal, as directed, as required, as permitted, acceptable, and satisfactory mean by or to the government.

1.6 SITE EXAMINATION

A. The Contractor and the Subcontractors, as appropriate, are strongly encouraged to visit and examine the existing conditions of the Project Site prior to submission of offer for the Contractor to better understand the Work, and aid in forming any questions the Contractor may have prior to the submission of offer.

B. If the Contractor wishes to perform additional site examinations after the pre-proposal meeting, Contractor shall contact the park Contracting Officer’s Representative to coordinate a time. The Park representative is, and may be contacted at:

1.7 FIELD VERIFICATION

A. The Contractor shall verify all existing conditions and new and existing dimensions prior to the commencement of work and/or ordering of products and materials that may affect the Work of this Project. Any and all discrepancies shall be forwarded to the Government in writing for https://www.acquisition.gov/far

April 2025 SUMMARY OF WORK 01 11 00 - Page 4 of 7 clarification prior to the commencement of work. Any work performed prior to clarification, particularly and including that which may require correction shall be corrected by the Contractor at no additional costs to the Project and the Government.

1.8 WORK RESTRICTIONS – USE OF PREMISES

A. Contractor's Use of Premises: During construction, Contractor will have limited use of site as indicated on drawings and as confirmed by the Government. Contractor's use of premises is limited only by Government's right to perform work, maintain public access and/or employ other contractors on portions of Project and as follows:

1. Buildings will be occupied by Government employees throughout the course of the work.

2. Government employees, park visitors and the public will occupy and use the area surrounding the Project Site throughout the Construction Period.

3. Limits: Throughout the entire duration of the Project, including all Phases of the Work, confine all operations to the limits shown on the Construction Documents.

a. No site, land or earth disturbance shall occur for this Project without written approval of the Government.

4. Driveways, Walkways, and Entrances: Entrances serving premises, driveways pathways, pedestrian areas, sidewalks, parking areas and loading areas shall be kept clear and available to the Government, the public, park visitors and emergency vehicles at all times, unless otherwise agreed to in advance by the Government. Do not use these areas for staging, parking of vehicles or equipment, or storage of materials.

5. Storage of materials and products: Confine to immediate worksite as directed by the Government. Contractor is allowed a storage container on the Project Site at a location mutually agreeable between Contractor and the Government.

6. Preservation of Adjacent Finishes, Contents and Grounds: Prevent damages to adjacent finishes and grounds. Restore all damages, repairing and/or replacing damaged elements to their original condition prior to damage, with no additional costs to the Government.

7. Existing Utilities and Utility Interruption: Notify the Government and utility company in writing of any proposed disturbances or planned interruptions of existing utilities.

Contractor shall submit a Plan of Operations for utility disturbance.

a. Contractor shall be responsible for locating and preventing damage to known utilities. If any damage occurs, contractor shall take action relative thereto and repair utility at no additional expense to the Government. No additional time shall be added to Contract for repairs from damages. Repairs shall commence immediately and be carried out expeditiously and in a professional manner pursuant to and compliant with all federal, state and local codes and regulations, as applicable.

b. If damage occurs to an unknown utility, Contractor shall repair and reconnect utility immediately. An equitable adjustment shall be made in accordance with the Changes clause of the Contract.

c. Interruption of Existing Utility Service: Contractor shall notify the Government forty-eight (48) hours in advance of utility interruption, and interruption shall be permitted with prior consent of the Government. Two (2) hours is the maximum time allowed for planned utility disruptions unless otherwise approved by the Government in writing.

April 2025 SUMMARY OF WORK 01 11 00 - Page 5 of 7

8. Hauling Restrictions: Contractor shall comply with all US DOT, State DOT and local legal load restrictions in the transport of all materials and products for the Project. The Government reserves the right to impose additional hauling restrictions within Park Boundaries.

a. Contractor is responsible for obtaining any and all permits, special or otherwise, required by authorities having jurisdiction that may be necessary for utilization of adjacent roads for construction operations.

b. Possession of a Permit by Contractor shall not relieve Contractor of liability for damage which may result from construction operations in utilization of said streets and sidewalks.

9. Contractor at all times shall conduct his operations to ensure the safety for all and minimize any inconveniences to the public. All operations shall be compliant with OSHA and other authorities’ regulations, including state and local bodies, having jurisdiction.

B. On-Site Work Hours: Limit work hours to normal business working hours of 8:00 a.m. to 4:00 p.m., Monday through Friday, unless otherwise indicated.

1. Weekend Hours: Weekend work may be permitted with written authorization of the Government.

2. Early Morning Hours: Early morning work may be permitted, with written authorization of the Government.

C. Non-smoking Building/Premises: Smoking is not permitted within the limits of the Project Site and Park grounds.

D. The following items are prohibited on the premises, including the Project Site and Park grounds:

1. Firearms

2. Ammunition

3. Alcohol

4. Pets

E. All Contractor’s commercial vehicles, including material and product delivery vehicles, shall be equipped with fire extinguishing equipment and first aid supplies as required by U.S. DOT and state DOT.

F. Parking: Contractor shall park all commercial and personal vehicles in areas designated by the Government. Contractor is responsible for managing and coordinating parking for personnel, subcontractors and their personnel and deliveries in a legal manner that does not conflict with site usage by the Government.

G. Permission for access to the site may be revoked for any and all persons who violate the university traffic regulations including speed limits, parking restrictions, and directions of the university police. All of the contractor's personnel, operating forces, and delivery personnel shall be made aware of and shall comply with traffic regulations at all times.

1.9 HISTORIC NATURE OF PROJECT, PROJECT SITE AND SURROUNDS

A. The Contractor shall note and respect the historical significance of the Project, Project Site and surrounds where the work will be performed. Due to this, certain aspects of the Work of this

April 2025 SUMMARY OF WORK 01 11 00 - Page 6 of 7

Project may not be performed in a manner and/or with methods commonplace in the current construction industry of today. It shall be incumbent upon the Contractor to furnish mechanics capable of executing first-class workmanship in the materials and methods specified, and who have the knowledge and experience to take any and all necessary precautions to protect elements of historic significance, structural and decorative, not scheduled to receive work.

B. See Division 01, Sections “Historic Preservation Treatment” and “Photo Documentation for Historic Projects” for further requirements.

1.10 ARCHEOLOGICAL FINDINGS

A. The Contractor is advised that there may be archeological remains in the area surrounding the site. Artifacts, structural features, domestic and /or archeological objects of nature, historic or prehistoric, above or sub-surface, found within the construction work area or otherwise on the premises, are and shall remain the property of the Government.

B. See Division 01 Section “Archeological Protection” for further requirements.

1.11 HAZARDOUS MATERIALS

A. If any additional Hazardous Material is encountered, all work shall stop in the area of the encounter and Contractor shall notify the Government immediately of discovery and its extent as known. Contractor shall not work in the encounter area until a resolution is established.

1. Contractor shall continue work in all other areas of the Project without interruption or delay, or

2. Contractor shall adjust work and/or begin other work on the Project that is not dependent upon the encounter area.

B. Should the temporary suspension of work at the site due to the discovery result in delays, re-mobilization or in additional work, Contractor will be compensated by an equitable adjustment under the Changes clause of the Contract.

PART 2 PRODUCTS

2.1 GENERAL

A. See Division 1 Section “Product Requirements” and individual Specifications Sections for requirements.

PART 3 EXECUTION

3.1 GENERAL

A. The Project shall be executed, and all construction activities completed by the Contractor as required by the Contract Documents.

B. See individual Specification Sections for specific Execution requirements.

3.2 HOUSEKEEPING

A. The Contractor shall maintain the site in a neat, orderly, and safe condition at all times.

3.3 FINAL CLEANING

April 2025 SUMMARY OF WORK 01 11 00 - Page 7 of 7

A. General: Provide final cleaning. Conduct cleaning and waste-removal operations to comply with local laws and ordinances and Federal and local environmental and antipollution regulations.

B. Complete the following cleaning operations before requesting inspection for certification of Substantial Completion for entire Project or for a portion of Project:

1. Clean Project site, yard, and grounds, in areas disturbed by construction activities, including landscape development areas, of rubbish, waste material, litter, and other foreign substances.

2. Sweep paved areas broom clean. Remove petrochemical spills, stains, and other foreign deposits.

3. Rake grounds that are neither planted nor paved to a smooth, even-textured surface.

4. Remove tools, construction equipment, machinery, and surplus material from Project site.

5. Waste Disposal: Remove all project generated waste from site and dispose of it in a legal manner.

END OF SECTION 01 11 00

February 2026 CONTRACT MODIFICATION PROCEDURES 01 26 01 - Page 1 of 5

SECTION 01 26 01 – CONTRACT MODIFICATION PROCEDURES

PART 1 - GENERAL

1.1 SUMMARY

A. This section consists of administrative and procedural requirements for contract modifications.

1.2 DEFINITIONS AND ALLOWANCES

A. General Conditions (Field Office Overhead): Management and administrative costs incurred on site for the designated project. Costs associated with preparation of modifications will not be allowed. Costs for these items are to be included only in the general conditions of the modification estimate. Only in the case of a contract time extension are additional general conditions included in modifications. The following items, if applicable, are considered allowable costs for calculating General Conditions:

1. Project Manager (PM), Assistant Project Manager

2. Superintendent, Assistant Superintendent

3. Quality Control, Safety Officer, Environmental Manager, etc.

4. Engineers

5. Travel, lodging, and per diem (as established by Federal Travel Regulations)

6. Scheduling

7. Field Office Trailers and associated temporary utilities

8. Field office supplies

a. Mailing and couriers

b. Reproduction costs

c. Storage

d. Phones

e. Computers

f. Copiers

9. Personal vehicles i.e. Superintendent Pickup trucks

B. General Requirements: Costs directly associated with the project and are necessary to perform the actual work of the modification. These costs shall be shown as direct costs in the estimate.

The following items, if applicable, are considered allowable costs for calculating General Requirements:

1. Hoisting

2. Material handling

3. Temporary fencing

4. Port-a-lets

5. Trash removal, dumpsters

6. Barricades

7. Small tools

February 2026 CONTRACT MODIFICATION PROCEDURES 01 26 01 - Page 2 of 5

8. Safety supplies

9. Scaffolding

10. Daily cleaning

11. Traffic control

12. Temporary signage

13. Temporary heating and power

C. Personnel Costs: Costs included in the modification must only be for General Conditions staff and workers present and working on the project site. Modification costs for salaried workers are only allowed within the structure of a 40-hour week, and no overtime or holiday pay will be allowed.

1. Worker Hourly Rates are costs directly associated with the individual worker and consist of the following:

a. Base Rate: The hourly rate paid directly to the worker

b. Labor Burden: Employer payments of all applicable burdens include insurance and taxes the business must pay on behalf of the worker to government entities and educational forums, such as:

1) Social Security

2) Medicare

3) Workers Compensation – Policy and company calculation to be made available.

4) Federal Unemployment Tax Act (FUTA) - Cap Rate and percentage to be proportionally allocated over one year.

5) State Unemployment Tax Act (SUTA) - Cap Rate and percentage to be proportionally allocated over one year.

6) Union agreement costs - Other costs required under an enforceable collective bargaining agreement.

c. Fringe Benefits: Various non-wage compensations provided to employees such as:

1) Health Care Insurance Premiums

2) Cell Phone

3) Clothing

4) 401K and Pensions

5) Vehicle allowances

6) Gas allowance

7) Life insurance premiums

8) Disability insurance

9) Other Fringe Benefits required under an enforceable collective bargaining agreement

D. Bonuses or Deferred Compensation: No Bonus or Deferred Compensation will be allowed within any components of pricing including Home Office Overhead, General Conditions, General Requirements, Hourly Worker Rates, or the direct costs of work.

E. General Liability Insurance: An insurance policy that protects Contractor from claims resulting from bodily injury or property damage to a third party. Include as a separate line item within all modification proposals and provide a current insurance quote upon request.

http://en.wikipedia.org/wiki/Employee

February 2026 CONTRACT MODIFICATION PROCEDURES 01 26 01 - Page 3 of 5

F. Consent of Surety:

1. When any contract is modified, the Contractor shall provide the consent of surety if-

a. An additional bond is obtained from other than the original surety;

b. No additional bond is required and

1) The modification is for new work beyond the scope of the original contract;

or

2) The modification does not change the contract scope but changes the contract price (upward or downward) by more than 25 percent or $50,000;

or

c. Consent of surety is required for a novation agreement.

2. When a contract for which performance or payment is secured by any of the types of security listed in FAR 28.204 is modified as described in paragraph (a) of this subsection, no consent of surety is required.

3. Agencies shall use Standard Form 1414, Consent of Surety, for all types of contracts.

G. Builder’s Risk Insurance: Covers the contractor’s loss due to fire, high winds, or other natural forces. Not reimbursed by the National Park Service (NPS) and shall not be included in modification proposals.

1.3 MODIFICATION PROPOSAL PRICING REQUIREMENTS

A. General:

1. Proposal be received in the format and within the time frame specified in the Request for Proposal (RFP) letter. Costs or delays resulting from failure of contractor to submit within the time frame specified will not be compensable.

2. The proposal shall be detailed with itemized lists of equipment, materials, labor, production rates, overhead, profit, and bond markup for each item. Labor costs must be itemized by craft and hourly rate, including Fringe Benefits and Labor Burden. If the costs of Fringe Benefits and Labor Burden are not itemized, it is assumed they are included in the hourly rate shown, or the contractor is not requesting reimbursement.

Contractor may utilize the government provided Contractor Estimate Form, or their own form, provided that it contains the same information and level of detail as the Government’s form.

3. Requests for extensions of contract time as a result of change must be justified with a Time Impact Analysis (TIA). Refer to Section 01 32 16 "Construction Schedule", for time impact analysis requirements. TIA and associated costs shall be received with the proposal by the date shown within the Request for Proposal letter. Contractor’s failure to submit within the specified time frame will be construed as the Contractor waiving right for additional time and no time extension will be allowed.

4. All supporting documentation used to justify the proposed modification will be made available to the Contracting Officer (CO) upon request.

5. Contractor shall review and approve all subcontractor/supplier pricing in detail for proper format, scope, production rates, and pricing prior to submission to NPS. All http://www.nps.gov/dscw/publicforms.htm

February 2026 CONTRACT MODIFICATION PROCEDURES 01 26 01 - Page 4 of 5 delay costs associated with not reviewing and approving subcontractor/supplier pricing will be borne by the Contractor.

6. All pricing and production rates within the estimate must be based on fair and reasonable pricing and cannot include built-in contingency.

B. Labor:

1. Contractor shall estimate the cost of labor by itemizing each craft involved, indicating worker hourly rate (base rate + labor burden + fringe benefits) for each and itemizing hours required for each craft directly engaged in modification work. Any work proposed requiring overtime work or premium pay shall be itemized separately. Rates shall be in accordance with the Davis-Bacon Act as incorporated herein. Labor Burden may include payroll taxes, Social Security, unemployment insurance, workers compensation insurance, Federal Insurance Contributions Act (FICA), FUTA, and other direct costs resulting from Federal, State or local laws.

2. Itemize labor costs for equipment operators separate from equipment costs.

3. Labor cost for foremen shall only be costs for related work required for the modification.

C. Materials:

1. Estimated cost for materials shall include quotes from multiple sources. Material prices shall include applicable fees and credits, including but not limited to, sales tax, freight and delivery charges, and tax rebates.

2. No markup shall be applied to any material provided by NPS.

D. Equipment:

1. The equipment used for the project must be appropriately sized for work being performed.

2. Do not include costs for "miscellaneous tools and equipment", in your proposal for a replacement value of $500 or less. Costs shown in excess of $500 shall be broken out separately.

3. Regardless of ownership, rates to be used in determining equipment rental costs shall be the lowest cost from one of the following sources:

a. United States (U.S.) Army Corps of Engineers, Ownership and Operating Expense Schedule (use latest edition and applicable region)

b. Construction Blue Book

c. Local equipment rental rates, documented by actual invoice charges, or itemized vendor quotes.

4. Estimated equipment rates shall include operating costs of all fuel, oil, lubrication, supplies, small tools, necessary attachments, ground engaging components, tires and tracks, routine repairs and maintenance (cost of major repair and overhaul is not allowed per Federal Acquisition Regulation (FAR) 31.105(d)(2)), depreciation, storage, insurance, and all incidentals. Mobilization, if applicable, may be included for equipment solely used on the modification work but must be listed separately.

5. Estimate full rate for equipment only for duration that equipment…