B08_Attach 1 Specs_CRLA Final CD Div 2-12.pdf

CRATER LAKE NATIONAL PARK

Klamath County, Oregon

CORRECT STRUCTURAL DEFICIENCIES

& STABILIZE STEEL VISITOR CENTER

CRLA

PMIS NO. 198641

100% COMPLETE CONSTRUCTION DOCUMENTS

SPECIFICATIONS: DIVISIONS 02 – 12

VOL. 2 OF 4

NATIONAL PARK SERVICE

DENVER SERVICE CENTER

November 20, 2020

CRLA - 198641 00 01 10 – V2-1

TABLE OF CONTENTS

SECTION 00 01 10 - TABLE OF CONTENTS

Division Section Title Pages

SPECIFICATIONS GROUP

VOLUME 2

DIVISION 02 - EXISTING CONDITIONS

02 41 19 ........ Selective Demolition

02 42 96 ........ Historic Removal and Dismantling

02 82 00 ........ Asbestos Abatement Design Workplan

02 83 00 ........ Lead Related Activities

02 84 00 ........ PCB, Mercury, & Rodent Feces Workplan

DIVISION 03 – CONCRETE

03 30 00 ........ Cast-In Place Concrete

03 37 13 ........ Shotcrete

DIVISION 04 - MASONRY

04 01 40.63 ... Brick Masonry and Repair

04 43 00 ........ Historic Stone Masonry

DIVISION 05 - METALS

05 12 00 ........ Structural Steel Framing

05 50 00 ........ Metal Fabrications

05 52 13 ........ Pipe and Tube Railings

05 53 13 ........ Bar Gratings

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES

06 03 12 ........ Historic Wood Repair

06 10 00 ........ Rough Carpentry

06 16 00 ........ Sheathing

06 40 23 ........ Interior Architectural Woodwork

06 41 13 ........ Wood-Veneer-Faced Architectural Cabinets

06 41 16 ........ Plastic-Laminate-Clad Architectural Cabinets

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 11 13 ........ Bituminous Dampproofing

07 21 00 ........ Thermal Insulation

07 26 00 ........ Vapor Retarders

07 31 29 ........ Wood Shingles and Shakes

07 46 24 ........ Wood Shingle and Shake Siding

07 62 00 ........ Sheet Metal Flashing and Trim

07 92 00 ........ Joint Sealants

CRLA - 198641 00 01 10 – V2-2

TABLE OF CONTENTS

DIVISION 08 - OPENINGS

08 14 33 ........ Stile and Rail Wood Doors

08 31 13 ........ Access Doors and Frames

08 71 00 ........ Door Hardware

08 71 13 Automatic Door Operators

08 80 00 ........ Glazing

DIVISION 09 - FINISHES

09 26 13 ........ Gypsum Veneer Plastering

09 29 00 ........ Gypsum Board

09 30 13 ........ Ceramic Tiling

09 63 40 ........ Stone Flooring

09 65 13 ........ Resilient Base and Accessories

09 65 19 ........ Resilient Tile Flooring

09 68 13 ........ Tile Carpeting

09 68 16 ........ Sheet Carpeting

09 84 33 ........ Sound-Absorbing Wall Units

09 90 00 ........ Painting

09 93 00 ........ Staining and Transparent Finishing (Lobby Oak Floor Refinishing)

DIVISION 10 - SPECIALTIES

10 14 23 ........ Panel Signage

10 21 13.19 ... Plastic Toilet Compartments

10 28 00 ........ Toilet, Bath, and Laundry Accessories

10 44 13 ........ Fire Protection Cabinets

10 44 16 ........ Fire Extinguishers

DIVISION 11 -

11 30 33 ........ Retractable Stairs

DIVISION 12 -

12 24 13 ........ Roller Window Shades

12 36 61.16 ... Solid Surfacing Countertops

CRLA - 198641 02 41 19 - 1

SELECTIVE DEMOLITION

SECTION 02 41 19 - SELECTIVE DEMOLITION

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Demolition and removal of selected portions of building or structure.

2. Demolition and removal of selected site elements.

3. Demolition and removal of previously installed temporary shoring.

4. Salvage of existing items to be reused or recycled.

B. Related Requirements:

1. Section 01 10 00 "Summary" for restrictions on use of the premises, Owner-occupancy requirements, and phasing requirements.

2. Section 01 56 39 "Temporary Tree and Plant Protection" for temporary protection of existing trees and plants that are affected by selective demolition.

3. Section 01 73 29 "Cutting and Patching" for cutting and patching procedures.

4. Section 02 42 96 “Historic Removal and Dismantling” for historic treatment procedures for special types of selective demolition.

5. Section 31 10 00 "Site Clearing" for site clearing and removal of above- and below-grade improvements not part of selective demolition.

1.2 DEFINITIONS

A. Remove: Detach items from existing construction and dispose of them off-site unless indicated to be salvaged or reinstalled.

B. Remove and Salvage: Detach items from existing construction, in a manner to prevent damage, and deliver to the Government ready for reuse .

C. Remove or Salvage and Reinstall: Detach items from existing construction, in a manner to prevent damage, prepare for reuse, and reinstall where indicated.

D. Existing to Remain: Leave existing items that are not to be removed and that are not otherwise indicated to be salvaged or reinstalled.

E. Dismantle: To remove by disassembling or detaching an item from a surface, using gentle methods and equipment to prevent damage to the item and surfaces; disposing of items unless indicated to be salvaged or reinstalled.

1.3 MATERIALS OWNERSHIP

A. Unless otherwise indicated, demolition waste becomes property of Contractor.

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B. Historic items, relics, antiques, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, and other items of interest or value to the Government that may be uncovered during demolition remain the property of the

Government.

1. Upon uncovering an item suspected of being historic, notify the Contracting Officer within 4 hours.

2. The Contracting Officer, or designated representative, will determine if the item is historic.

3. Carefully salvage in a manner to prevent damage and promptly return to the Government.

1.4 PRECONSTUCTION MEETINGS

A. Predemolition Conference: Conduct conference at Project site.

1. Inspect and discuss condition of construction to be selectively demolished.

2. Review structural load limitations of existing structure.

3. Review and finalize selective demolition schedule and verify availability of materials, demolition personnel, equipment, and facilities needed to make progress and avoid delays.

4. Review requirements of work performed by other trades that rely on substrates exposed by selective demolition operations.

5. Review areas where existing construction is to remain and requires protection.

1.5 INFORMATIONAL SUBMITTALS

A. Proposed Protection Measures: Submit report, including Drawings, that indicates the measures proposed for protecting individuals and property, for environmental protection, for dust control and, for noise control. Indicate proposed locations and construction of barriers.

B. Schedule of Selective Demolition Activities: Indicate the following:

1. Detailed sequence of selective demolition and removal work, with starting and ending dates for each activity. Ensure Government's on-site operations are uninterrupted.

2. Whether the previously installed temporary shoring will be utilized for some period of time, and timeline for removal.

3. Interruption of utility services. Indicate how long utility services will be interrupted.

4. Coordination for shutoff, capping, and continuation of utility services.

5. Coordination of The Government's continuing occupancy of portions of existing building and of The Government's partial occupancy of completed Work.

C. Predemolition Photographs or Video: Show existing conditions of adjoining construction, including finish surfaces, that might be misconstrued as damage caused by demolition operations. Comply with Section 01 32 33 "Photographic Documentation." Submit before Work begins.

CRLA - 198641 02 41 19 - 3

1.6 CLOSEOUT SUBMITTALS

A. Inventory: Submit a list of items that have been removed, salvaged, and turned over to the

Government.

1.7 FIELD CONDITIONS

A. The Government will occupy portions of building immediately adjacent to selective demolition area. Conduct selective demolition so The Government's operations will not be disrupted.

B. Conditions existing at time of inspection for bidding purpose will be maintained by The

Government as far as practical.

1. Before selective demolition, The Government will remove the following items:

a. Merchandise from the Sales/Lobby room.

b. Merchandise and supplies from the contract Post Office station. The Post Office will maintain 6 days a week operation up until the weekend they move into the

Temporary Visitor Center; and in the Temporary Visitor Center until the weekend they move back to the Steel Visitor Center.

c. Auditorium AV equipment.

C. Notify Contracting Officer of discrepancies between existing conditions and Drawings before proceeding with selective demolition.

D. Hazardous Materials: Present in buildings and structures to be selectively demolished. A report on the presence of hazardous materials is provided for use. Examine report to become aware of locations where hazardous materials are present.

1. Hazardous material remediation is specified elsewhere in the Contract Documents.

2. Do not disturb hazardous materials or items suspected of containing hazardous materials except under procedures specified elsewhere in the Contract Documents.

E. Historic Areas: Demolition and hauling equipment and other materials shall be of sizes that clear surfaces within historic spaces, areas, rooms, and openings, including temporary protection, by 12 inches or more.

F. Storage or sale of removed items or materials on-site is not permitted.

G. Utility Service: Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

1. Maintain fire-protection facilities in service during selective demolition operations.

1.8 COORDINATION

A. Arrange selective demolition schedule so as not to interfere with The Government's operations.

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PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ASSE A10.6 and NFPA 241.

2.2 REPAIR MATERIALS

A. Use repair materials identical to existing materials.

1. If identical materials are unavailable or cannot be used for exposed surfaces, use materials that visually match existing adjacent surfaces to the fullest extent possible.

2. Use materials whose installed performance equals or surpasses that of existing materials.

B. Comply with material and installation requirements specified in individual Specification

Sections.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped before starting selective demolition operations.

B. Review Project Record Documents of existing construction or other existing condition and hazardous material information provided by The Government. The Government does not guarantee that existing conditions are same as those indicated in Project Record Documents.

C. Engage a professional engineer to perform an engineering survey of condition of building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of structure or adjacent structures during selective building demolition operations.

1. Perform surveys as the Work progresses to detect hazards resulting from selective demolition activities.

D. Verify that hazardous materials have been remediated before proceeding with building demolition operations.

E. Survey of Existing Conditions: Record existing conditions by use of measured drawings preconstruction photographs or video and templates.

1. Comply with requirements specified in Section 01 32 33 "Photographic Documentation."

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2. Inventory and record the condition of items to be removed and salvaged. Provide photographs or video of conditions that might be misconstrued as damage caused by salvage operations.

3. Before selective demolition or removal of existing building elements that will be reproduced or duplicated in final Work, make permanent record of measurements, materials, and construction details required to make exact reproduction.

3.2 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Services/Systems to Remain: Maintain services/systems indicated to remain and protect them against damage.

B. Existing Services/Systems to Be Removed, Relocated, or Abandoned: Locate, identify, disconnect, and seal or cap off utility services and mechanical/electrical systems serving areas to be selectively demolished.

1. Arrange to shut off utilities with utility companies.

2. If services/systems are required to be removed, relocated, or abandoned, provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of building.

3. Disconnect, demolish, and remove plumbing, and HVAC systems, equipment, and components indicated on Drawings to be removed.

a. Piping to Be Removed: Remove portion of piping indicated to be removed and cap or plug remaining piping with same or compatible piping material.

b. Equipment to Be Removed: Disconnect and cap services and remove equipment.

c. Equipment to Be Removed and Reinstalled: Disconnect and cap services and remove, clean, and store equipment; when appropriate, reinstall, reconnect, and make equipment operational.

d. Equipment to Be Removed and Salvaged: Disconnect and cap services and remove equipment and deliver to The Government.

e. Ducts to Be Removed: Remove portion of ducts indicated to be removed and plug remaining ducts with same or compatible ductwork material.

3.3 PROTECTION

A. Temporary Protection: Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

1. Provide protection to ensure safe passage of people around selective demolition area and to and from occupied portions of building.

2. Provide temporary weather protection, during interval between selective demolition of existing construction on exterior surfaces and new construction, to prevent water leakage and damage to structure and interior areas.

3. Protect walls, ceilings, floors, and other existing finish work that are to remain or that are exposed during selective demolition operations.

4. Cover and protect furniture, furnishings, and equipment that have not been removed.

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5. Comply with requirements for temporary enclosures, dust control, heating, and cooling specified in Section 01 50 00 "Temporary Facilities and Controls", and requirements for protection of installed construction in Section 01 73 40 “Execution.”

B. Temporary Shoring: Design, provide, and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

1. Strengthen or add new supports when required during progress of selective demolition.

C. Remove temporary barricades and protections where hazards no longer exist.

3.4 SELECTIVE DEMOLITION, GENERAL

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Proceed with selective demolition systematically, from higher to lower level. Complete selective demolition operations above each floor or tier before disturbing supporting members on the next lower level.

2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction.

Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain.

3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

4. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire-suppression devices during flame-cutting operations.

5. Maintain fire watch during and for at least24 hours after flame-cutting operations.

6. Maintain adequate ventilation when using cutting torches.

7. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site.

8. Remove structural framing members and lower to ground by method suitable to avoid free fall and to prevent ground impact or dust generation.

9. Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

10. Dispose of demolished items and materials promptly. Comply with requirements in

Section 01 74 19 "Construction Waste Management and Disposal."

B. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

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C. Work in Historic Areas: In historic spaces, areas, and rooms, or on historic surfaces, the terms

"demolish" or "remove" shall mean historic "removal" or "dismantling" as specified in

Section 02 42 96 "Historic Removal and Dismantling."

D. Removed and Salvaged Items:

1. Clean salvaged items.

2. Pack or crate items after cleaning. Identify contents of containers.

3. Store items in a secure area until delivery to The Government.

4. Transport items to The Government's storage area in the park and as designated by The

Government.

5. Protect items from damage during transport and storage.

E. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse.

2. Pack or crate items after cleaning and repairing. Identify contents of containers.

3. Protect items from damage during transport and storage.

4. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

F. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by Contracting Officer, items may be removed to a suitable, protected storage location during selective demolition and cleaned and reinstalled in their original locations after selective demolition operations are complete.

3.5 SELECTIVE DEMOLITION PROCEDURES FOR SPECIFIC MATERIALS

A. Concrete: Demolish in small sections. Using power-driven saw, cut concrete to a depth of at least 3/4 inch at junctures with construction to remain. Dislodge concrete from reinforcement at perimeter of areas being demolished, cut reinforcement, and then remove remainder of concrete.

Neatly trim openings to dimensions indicated.

B. Concrete: Demolish in sections. Cut concrete full depth at junctures with construction to remain and at regular intervals using power-driven saw, and then remove concrete between saw cuts.

C. Masonry: Demolish in small sections. Cut masonry at junctures with construction to remain, using power-driven saw, and then remove masonry between saw cuts.

D. Concrete Slabs-on-Grade: Saw-cut perimeter of area to be demolished, and then break up and remove.

E. Previously Installed Temporary Shoring: Disassemble structural steel, timber pads, and wood cladding in a manner that does not damage adjacent materials to be retained.

F. Resilient Floor Coverings: Remove floor coverings and adhesive according to recommendations in RFCI's "Recommended Work Practices for the Removal of Resilient Floor Coverings." Do not use methods requiring solvent-based adhesive strippers.

CRLA - 198641 02 41 19 - 8

G. Roofing: Remove no more existing roofing than what can be covered in one day so that building interior remains watertight and weathertight. See Section 07 31 29 Wood Shingles and Shakes for new roofing requirements.

1. Remove existing roofing system as indicated in the drawings.

3.6 DISPOSAL OF DEMOLISHED MATERIALS

A. Remove demolition waste materials from Project site and recycle or dispose of them according to Section 01 74 19 "Construction Waste Management and Disposal."

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

3. Remove debris from elevated portions of building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

B. Burning: Do not burn demolished materials.

3.7 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

END OF SECTION 02 41 19

CRLA - 198641 02 42 96 - 1

HISTORIC REMOVAL AND DISMANTLING

SECTION 02 42 96 - HISTORIC REMOVAL AND DISMANTLING

PART 1 - GENERAL

1.1

1.2 SUMMARY

A. Section includes historic treatment procedures in the form of special types of selective demolition work for designated historic spaces, areas, rooms, and surfaces and the following specific work:

1. Removal and dismantling of indicated portions of building or structure and debris hauling.

2. Removal and dismantling of indicated site elements and debris hauling.

3. Salvage of existing items to be reused, reinstalled, or recycled.

B. Related Requirements:

1. Section 01 35 91 "Historic Treatment Procedures" for general historic treatment requirements.

2. Section 04 01 40.63 “Brick Masonry Repair” for repairing historic brick assembly requirements.

3. Section 04 43 00 “Historic Stone Masonry” for repairing historic stone assembly requirements.

4. Section 06 03 12 “Historic Wood Repair” for repairing historic wood components requirements.

5. Section 09 63 40 “Stone Flooring” for reinstallation of salvaged flagstone requirements.

6. Section 09 93 00 "Staining and Transparent Finishing” for reinstallation and finishing of salvaged wood flooring requirements.

1.3 DEFINITIONS

A. Dismantle: To disassemble or detach a historic item from a surface, or a non-historic item from a historic surface, using gentle methods and equipment to prevent damage to historic items and surfaces; disposing of items unless indicated to be salvaged or reinstalled.

B. Existing to Remain: Existing items that are not to be removed or dismantled, except to the degree indicated for performing required Work.

C. Remove: To take down or detach a non-historic item located within a historic space, area, or room, using methods and equipment to prevent damage to historic items and surfaces; disposing of items unless indicated to be salvaged or reinstalled.

D. Retain: To keep existing items that are not to be removed or dismantled.

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E. Salvage: To protect removed or dismantled items and deliver them to Owner ready for reuse, or to be reinstalled.

1.4 PRECONSTRUCTION MEETINGS

A. Preconstruction Conference(s): Conduct conference(s) at Project site.

1. Review minutes of Preliminary Historic Treatment Conference that pertain to removal and dismantling procedures and protection of historic areas and surfaces.

2. Review list of items indicated to be salvaged.

3. Verify qualifications of personnel assigned to perform removal and dismantling.

4. Inspect and discuss condition of each construction type to be removed or dismantled.

5. Review requirements of other work that depends on condition of substrates exposed by removal and dismantling work.

6. Review methods and procedures related to removal and dismantling work, including, but not limited to, the following:

a. Historic removal and dismantling specialist's personnel, equipment, and facilities needed to make progress and avoid delays.

b. Materials, material application, sequencing, tolerances, and required clearances.

c. Fire prevention.

d. Coordination with building occupants.

1.5 ACTION SUBMITTALS

A. Preconstruction Documentation: Show preexisting conditions of adjoining construction and site improvements, including finish surfaces, that might be misconstrued as damage caused by

Contractor's removal and dismantling operations, through photos and video recordings specified elsewhere in this Section.

1. Exact layout of each piece of interior and exterior flagstone shall be documented; along with grout and mortar.

2. Exact layout of each piece of interior oak flooring in Visitor’s Lobby/Sales shall be documented.

3. Exact location of all wood trim, doors and frames, and other items that are to be salvaged and reinstalled shall be documented.

B. Removal and Dismantling Historic Treatment Program: Submit 30 days before work begins.

C. List of Items Indicated to Be Salvaged: Prepare a list of items indicated on Drawings to be salvaged for Owner's use or for reinstallation. Submit 15 days before preconstruction conference.

D. Inventory of Salvaged Items: After removal or dismantling work is complete, submit a list of items that have been salvaged.

1. Include item description, item condition, number of items if more than one of a type, and tag number. Include photo of item in original location.

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2. Document (map) exact location of salvaged items so that they can be reinstalled in the same location.

3. As work proceeds, include on the inventory items that were indicated to be salvaged and items of historic importance discovered during the work. Document reasons, if any, why an item indicated to be salvaged was not salvaged.

1.6 INFORMATIONAL SUBMITTALS

A. Qualification Data: For historic removal and dismantling specialist] and historic removal and dismantling specialist's field supervisors.

1.7 QUALITY ASSURANCE

A. Historic Removal and Dismantling Specialist Qualifications: An experienced firm, or individual within the firm, with the required certifications and training that can demonstrate through past performance that they are qualified to perform this work. General selective demolition experience is insufficient experience for historic removal and dismantling work.

B. Removal and Dismantling Historic Treatment Program: Prepare a written, detailed description of materials, methods, equipment, and sequence of operations to be used for each phase of removal and dismantling work, including protection of surrounding and substrate materials and

Project site.

1. Dust and Noise Control: Include locations of proposed temporary dust- and noise-control partitions and means of egress from occupied areas coordinated with continuing on-site operations and other known work in progress.

2. Debris Hauling: Include plans clearly marked to show debris hauling routes, turning radii, and locations and details of temporary protective barriers.

C. Mockups: Prepare mockups of specific historic removal and dismantling procedures specified in this Section to demonstrate aesthetic effects and to set quality standards for materials and execution.

1. Typical Exterior Flagstone Dismantling Work: Dismantle an approximately 25-sq. ft.

area of typical exterior flagstone in mortar bed, over concrete slab. Flagstones to be salvaged for reinstallation.

2. Typical Interior Flagstone Dismantling Work: Dismantle an approximately 25-sq. ft. area of typical interior flagstone flooring in mortar bed.

3. Approval of mockups does not constitute approval of deviations from the Contract

Documents contained in mockups unless Contracting Officer specifically approves such deviations in writing.

D. Regulatory Requirements: Comply with notification regulations of authorities having jurisdiction before beginning removal and dismantling work. Comply with hauling and disposal regulations of authorities having jurisdiction.

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1.8 FIELD CONDITIONS

A. Conditions existing at time of inspection for bidding purpose will be maintained by Owner as far as practical.

1. Before removal and dismantling, Government will remove items listed in Section 02 41

19 Selective Demolition.

B. Notify Contracting Officer of discrepancies between existing conditions and Drawings before proceeding with removal and dismantling work.

C. Hazardous Materials: Hazardous materials are present in construction affected by removal and dismantling work. A report on the presence of hazardous materials is provided for review and use. Examine report to become aware of locations where hazardous materials are present.

1. Hazardous material remediation is specified elsewhere in the Contract Documents.

2. Do not disturb hazardous materials or items suspected of containing hazardous materials, except under procedures specified elsewhere in the Contract Documents.

D. Storage or sale of removed or dismantled items on-site is not permitted unless otherwise indicated.

PART 2 - PRODUCTS - (Not Used)

PART 3 - EXECUTION

3.1 HISTORIC REMOVAL AND DISMANTLING EQUIPMENT

A. Removal Equipment: Use only hand-held tools, except as follows or unless otherwise approved by Contracting Officer on a case-by-case basis:

1. Light jackhammers are allowed subject to Contracting Officer's approval.

2. Large air hammers are not permitted.

B. Dismantling Equipment: Use manual, hand-held tools, except as follows or otherwise approved by Contracting Officer on a case-by-case basis:

1. Hand-held power tools and cutting torches are permitted only as submitted in the historic treatment program. They must be adjustable so as to penetrate or cut only the thickness of material being removed.

2. Pry bars more than 18 inches long and hammers weighing more than 2 lb are not permitted for dismantling work.

3.2 EXAMINATION

A. Preparation for Removal and Dismantling: Examine construction to be removed or dismantled to determine best methods to safely and effectively perform removal and dismantling work.

Examine adjacent work to determine what protective measures are necessary. Make

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explorations, probes, and inquiries as necessary to determine condition of construction to be removed or dismantled and location of utilities and services to remain that may be hidden by construction that is to be removed or dismantled.

1. Verify that affected utilities are disconnected and capped.

2. Inventory and record the condition of items to be removed and dismantled for reinstallation or salvage. Enter this information on the submittal of inventory of salvaged items.

3. Before removal or dismantling of existing building elements that will be reinstalled, reproduced or duplicated in final Work, make permanent record of locations, configurations, measurements, materials, and construction details of each piece required to make exact reproduction. Tag or label each piece in a manner suitable for the material.

4. Engineering Survey: Engage a professional engineer to survey condition of building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of structure or adjacent structures as a result of removal and dismantling work.

B. Documentation of Existing Conditions: Record existing conditions by use of preconstruction photographs and preconstruction video recordings.

1. Comply with requirements specified in Section 013233 "Photographic Documentation."

C. Perform surveys as the Work progresses to detect hazards resulting from historic removal and dismantling procedures.

3.3 HISTORIC REMOVAL AND DISMANTLING

A. General: Have removal and dismantling work performed by a qualified historic removal and dismantling specialist. Ensure that historic removal and dismantling specialist's field supervisors are present when removal and dismantling work begins and during its progress.

B. Perform work according to the historic treatment program and approved mockup(s).

1. Perform removal and dismantling to the limits indicated.

2. Provide supports or reinforcement for existing construction that becomes temporarily weakened by removal and dismantling work, until the Project Work is completed unless otherwise indicated.

3. Perform cutting by hand or with small power tools wherever possible. Cut holes and slots neatly to size required, with minimum disturbance of adjacent work.

4. Do not operate air compressors inside building unless approved by Contracting Officer in each case.

5. Do not drill or cut columns, beams, joints, girders, structural slabs, or other structural supporting elements, without having Contractor's professional engineer's written approval for each location before such work is begun.

6. Dispose of removed and dismantled items off-site unless indicated to be salvaged or reinstalled.

C. Water-Mist Sprinkling: Use water-mist sprinkling and other wet methods to control dust only with adequate, approved procedures and equipment according to the historic treatment program

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to ensure that such water does not create a hazard or adversely affect other building areas or materials.

D. Unacceptable Equipment: Keep equipment that is not permitted for historic removal or dismantling work away from the vicinity where such work is being performed.

E. Removing and Dismantling Items on or Near Historic Surfaces:

1. Use only dismantling equipment and procedures within 12 inches of historic surface. Do not use pry bars. Protect historic surface from contact with or damage by tools.

2. Unfasten items in the opposite order from which they were installed.

3. Support each item as it becomes loosened to prevent stress and damage to the historic surface.

4. Dismantle anchorages.

F. Masonry Walls:

1. Core drilling and masonry wall repair to comply with the requirements in Section 04 43

00 “Historic Stone Masonry.”

G. Interior Flagstone Flooring and Setting Bed Dismantling: Dismantle flagstone and setting bed.

1. Immediately beneath the setting bed lies structural sheathing and floor framing. Use only procedures and techniques that ensure that the setting bed is dismantled without damage to the sheathing and framing.

2. Notify Contracting Officer 15 calendar days before performing dismantling operations on the setting bed. Perform exploratory dismantling mockup specified in "Quality

Assurance" Article, and obtain Contracting Officer's permission before proceeding with the dismantling.

3. Procedure: Follow dismantling procedure below.

a. Saw cut stone mortar joints with rigid guides to ensure straight, uniform cuts and to prevent over cutting into adjacent stones. Use thin saw blades so that stones can be reused. Replace with new stone any dismantled stones and adjacent stones if cut irregularly or otherwise damaged, at no additional cost to Owner.

b. Gently loosen and pry stone free from setting bed. If a stone unit cannot be separated from the substrate, cut it up as necessary for removal and replace it.

c. Saw cut setting bed with parallel cuts 3 to 4 inches apart and of a maximum depth that ends 1/4 inch above the bottom of the setting bed.

d. Using the sawed grooves, carefully chip out material to the limits shown.

e. Take away material to a uniform surface at the indicated level.

f. Carefully monitor the progress of the saw cutting. If at any point the material being cut changes in nature, as evidenced by observations such as sounds generated by the cutting blade, resistance to cutting, and color of the dust, stop work in the immediate area, immediately notify Contracting Officer of the condition, and assign workers to continue work elsewhere until Contracting Officer issues instructions.

H. Exterior Flagstone Flooring and Setting Bed Dismantling: Dismantle flagstone and setting bed.

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1. Notify Contracting Officer 15 calendar days before performing dismantling operations on the setting bed. Perform exploratory dismantling mockup specified in "Quality

Assurance" Article, and obtain Contracting Officer's permission before proceeding with the dismantling.

2. Procedure: Follow dismantling procedure below.

a. Saw cut stone mortar joints with rigid guides to ensure straight, uniform cuts and to prevent over cutting into adjacent stones. Use thin saw blades so that stones can be reused. Replace with new stone any dismantled stones and adjacent stones if cut irregularly or otherwise damaged, at no additional cost to Owner.

b. Gently loosen and pry stone free from setting bed. If a stone unit cannot be separated from the substrate, cut it up as necessary for removal and replace it.

c. Remove balance of setting bed, and underlying concrete slab, in accordance with the requirements in Section 02 41 19 “Selective Demolition”.

d. Carefully monitor the progress of the saw cutting. If at any point the material being cut changes in nature, as evidenced by observations such as sounds generated by the cutting blade, resistance to cutting, and color of the dust, stop work in the immediate area, immediately notify Contracting Officer of the condition, and assign workers to continue work elsewhere until Contracting Officer issues instructions.

I. Anchorages:

1. Remove anchorages associated with removed items.

2. Dismantle anchorages associated with dismantled items.

3. In non-historic surfaces, patch holes created by anchorage removal or dismantling according to the requirements for new work.

4. In historic surfaces, patch or repair holes created by anchorage removal or dismantling according to Section that is specific to the historic surface being patched.

J. Historic Oak Flooring

1. Examine flooring to be removed to determine best methods to safely and effectively perform removal and reinstallation work.

2. Inventory and record the condition of each floorboard to be removed for reinstallation.

Enter this information on the submittal of inventory of salvaged items.

3. Mapp the flooring with photographs that identify each board by tagging each board with an identifying label.

4. Identify area of missing or damaged flooring, where infill flooring will need to occur.

5. Identify and label each removed floorboard for future re-installation in the exact location, orientation and visual appearance.

6. Clean and repair floorboards to functional condition adequate for intended reuse.

7. Pack or crate flooring after cleaning and repairing. Identify contents of containers.

8. Protect flooring from damage during transport and storage.

9. Reinstall flooring in locations indicated. Comply with installation requirements for new materials.

END OF SECTION 02 42 96

CRLA - 198641 02 82 00 - 1

ASBESTOS ABATEMENT DESIGN WORK PLAN

SECTION 02 82 00 - ASBESTOS ABATEMENT DESIGN WORK PLAN

PART 1 GENERAL

1.1 SECTION INCLUDES

A. In July of 2018, ATC completed a Hazardous Building Material Survey on the Steel

Visitor Center in Crater Lake, Oregon (the Project Area) to identify the various asbestos-containing materials (ACMs) throughout the building. Asbestos-containing floor tile and mastic have been identified in the building.

B. The National Park Service (NPS) intends to renovate portions of the referenced Project

Area. The impact to these areas will disturb known ACMs. Prior to initiating demolition procedures, the Abatement Contractor will remove the designated ACMs or presumed

ACMs (PACMs) that will be impacted by the proposed renovation project.

C. The following table is a summary of the suspect asbestos-containing materials that have been determined, through laboratory analysis, to contain asbestos at the facility:

TABLE 1: ASBESTOS CONTAINING MATERIALS

Sample

Number

Material

Description &

Type (T, S, M)

Location Friability Estimated Quantity

Condition Hazard

Rank

Asbestos

Content

15 Floor tile

Associate office under carpet

Non-friable 80 ft2 Good One 3%

Chrysotile

All floor tiles and mastic that were reported as non-detect by Polarized Light Microscopy (PLM) were re-analyzed by Transmission Electron Microscopy (TEM). This is performed due to the fact that PLM resolution may not be able to detect the finest and smallest asbestos fibers that were known to be used as fillers in vinyl tile manufacturing process. The results from the TEM analysis did indicate that two of the tile types that were reported as non-detect by PLM were found to contain significant concentrations of asbestos. The results were sent to another lab to confirm the results. The 3rd round of analysis confirmed the asbestos content and the drawings have been updated to reflect the increased scope of asbestos work.

The following table is a summary of the TEM analysis performed by AMA Analytical Services, which have been determined to contain asbestos.

TABLE 2: ASBESTOS CONTAINING MATERIALS Using TEM Analysis

Number

Material

Description &

Type (T, S, M)

Location Friability Quantity Condition Hazard

Rank

Asbestos

Content

09 Floor tile Library Non-friable 320 ft2 Good One 10.6%

Chrysotile

17 Floor tile Work Shop Non-friable 260 ft2 Good One 10.4%

The following table is a summary of the TEM analysis performed by SAI, which have been determined to contain asbestos.

CRLA - 198641 02 82 00 - 2

TABLE 3: ASBESTOS CONTAINING MATERIALS Using TEM Analysis

Number

Material

Description &

Type (T, S, M)

Location Friability Quantity Condition Hazard

Rank

Asbestos

Content

Floor tile and

Mastic Library

Non-friable 320 ft2 Good One

23%, 2.6%

Chrysotile

17 Floor tile Work

Shop

Non- Friable 260 ft2 Good One 24%

D. The Abatement Contractor shall ensure safe work practices are followed when accessing these areas. ACMs identified in the Project Area must be removed by Certified Asbestos

Workers in accordance with federal, state and local regulations. All ACMs shall be removed using manual methods in accordance with Oregon Department of

Environmental Quality (DEQ) regulations and the scope of work herein.

1.2 GENERAL REQUIREMENTS

A. SUPERVISORY AUTHORITY: The Abatement Contractor will work directly with

National Park Service (NPS) and the General Contractor (during demolition-related activities involving asbestos removal and disposal).

B. ABATEMENT QUANTITIES: The Abatement Contractor is accountable for identifying that ACM quantities scheduled for removal under this contract are accurate. The

Abatement Contractor will be held accountable to the unit costs provided in the

Add/Deduct Unit Cost Sheet for Hazardous Materials Abatement (Attached, following this Section).

C. SCHEDULE: The interior asbestos abatement work must be performed prior to the renovation-related procedures. The Abatement Contractor may be responsible to coordinate the schedule with the General Contractor to complete the ACM abatement work during the demolition phase. The work will be performed in accordance with the

Phasing plan outlined in Phase Drawings provide by the General Contractor.

D. ACCESS RESTRICTIONS: Work described in this document includes restriction of work areas during hazardous materials activities. Access to various work areas by the general public, general trades and other individuals will not be possible during certain hazardous materials work sequences, as specified herein and elsewhere. The Abatement

Contractor is to coordinate the Work with the NPS and the General Contractor to facilitate access, enforce work area restrictions and to minimize disruption to the surrounding buildings.

E. WORKING HOURS: Hazardous materials work shall occur during evenings, as the buildings are occupied. Work hours are considered 5:00 PM to 8:00 AM, unless otherwise stated by the National Park Service.

F. EMERGENCY CONTACTS: Designate qualified representatives of the Abatement

Contractor and specific employees who are to be available on a 24-hour emergency basis for the duration of the Work that can access restricted work areas. Provide contact information to the Goverment’s Representative for inclusion in the project emergency contact list.

G. SITE SECURITY: See Section for Security or specific details.

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H. UTILITIES: All utilities to remain active in abatement work areas. Contractor is required to clean and protect all utilities during demolition and abatement work. Any damage to the utilities will be repaired at Contractor’s expense.

I. FIRE WATCH: During all abatement work that includes all regulated work areas, Abatement Contractor shall maintain a fire watch during non-abatement work periods.

The Fire Watch personnel shall have the ability to enter the work area in event of an emergency.

J. FLOOR TILE AND MASTIC: Abatement work involves removal of asbestos containing floor tile and mastic. This work must be completed from the interior of the building prior to renovations in these areas.

1.3 ASBESTOS CONTAINING MATERIALS REMOVAL

A. The Abatement Contractor shall refer to ATC’s October 25, 2018 Hazardous Building

Material report, which identifies the known ACMs in the Project Area. The Abatement

Contractor shall ensure that copies of this information are made available to and retained on site by all contractors working in the Project Area.

B. The Abatement Contractor shall be aware that suspect-ACMs may exist in inaccessible locations of the spaces in the Work Area, and in areas of the buildings not included in the

Work Area.

1. The Abatement Contractor shall proceed with caution during all phases of the

Work.

2. Should any suspect-ACMs not identified in the prior reports be encountered, the

Abatement Contractor shall immediately notify the NPS’s Representative.

C. The Abatement Contractor is advised that, should additional ACMs not included in the above-referenced reports be encountered, the Government may elect to include the abatement of such materials in the Work Plan at a mutually agreed upon price. Work impacting such materials is not to occur prior to the Abatement Contractor receiving explicit written authorization from the Government, and any Work performed without such approval is performed at the Abatement Contractor’s own risk and expense.

D. Where in the performance of the Work Plan, workers, supervisory personnel, Contractors, or consultants may encounter, disturb, or otherwise function in the immediate vicinity of any identified ACMs; the Abatement Contractor shall take appropriate continuous measures, as necessary, to protect all building occupants from the potential hazard of exposure to airborne asbestos. Such measures shall include the procedures and methods described herein, and compliance with applicable local, state and federal regulations.

E. Damage of Asbestos by the Abatement Contractor: Damage to ACMs to remain onsite caused by the Abatement Contractor shall be repaired to the satisfaction of the

Government by the Abatement Contractor using certified asbestos workers according to this document and at the sole expense of the Abatement Contractor.

F. The Abatement Contractor is to submit health and safety related documents relating to the abatement of ACMs.

G. The Abatement Contractor shall furnish all labor, materials, equipment, services and insurance (specifically covering the handling and transportation of ACMs) that is specified, shown, or reasonably implied for the activities.

CRLA - 198641 02 82 00 - 4

I. The abatement work will be performed as part of the renovation/demolition procedures and will require coordination with the Demolition Contractor and the General Contractor.

The NPS and the General Contractor may make adjustments to the abatement schedule, however prior notification will be given to the abatement contractor as practical.

J. The intent of ACM removal is to accommodate other trade work, and at the completion of this project, other ACM not in the scope of work that are in good and intact condition will remain at the project site.

1.4 DEFINITIONS

A. Definitions used throughout this Section:

1. Abatement: Procedures to control fiber release from asbestos-containing construction materials. Includes removal, encapsulation, and enclosure.

2. Amended Water: Water to which a surfactant has been added.

3. AFD: Air filtration device (AFD), which is used to provide collect airborne particulates and/or provide negative pressure to a contained work area.

4. Asbestos: (29 CFR 1926.1101) includes chrysotile, amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, actinolite asbestos, and any of these minerals that has been chemically treated and/or altered.

5. Abatement Contractor: The Certified Asbestos Contractor (F.S. & G.S. Services, Inc.) selected/hired by the Contractor to perform the asbestos abatement work.

6. Asbestos-Containing Material (ACM): Material composed of asbestos of any type in an amount greater than 1 percent by weight, either alone or mixed with other fibrous or nonfribrous materials.

7. Asbestos Fibers: Asbestos fibers having an aspect ratio of at least 3:1, and that are 5 micrometers or more in length.

8. Certified Asbestos Contractor: A Contractor licensed by the State of Oregon

Department of Environmental Quality (DEQ).

9. Certified Asbestos Supervisor: The Certified Asbestos Contractor's representative at the Project Site who is certified by the Oregon DEQ.

10. Certified Asbestos Worker: An individual who is certified by the Oregon DEQ to conduct asbestos abatement work under the supervision of a licensed DEQ supervisor.

11. Contained Work Area/Containment: A work area that has been isolated, plasticized, and equipped with a negative air pressure system monitored by manometer with a Decontamination Enclosure System.

12. Critical Barrier: Seal applied to openings connecting the abatement area with adjacent spaces that will not be included in the containment. Critical barriers shall not be exposed to the gross removal environment. Examples of openings requiring critical barriers include, but are not limited to: HVAC vents and diffusers; doorways; windows; floor, wall, and ceiling penetrations; and air plenums.

13. CMU: Concrete Masonry Units.

14. Decontamination Enclosure System: A series of connected rooms, with airlocks or curtained doorways between any two adjacent rooms, for the decontamination of workers or of materials and equipment. A Decontamination Enclosure System always contains at least one air lock to the work area.

CRLA - 198641 02 82 00 - 5

15. Disposal Bag: A properly labeled 6-mil thick, leak-tight plastic bag used for transporting asbestos waste from Project Site to disposal site.

16. Encapsulant (sealant): A liquid material that can be applied to Asbestos-

Containing Material and that controls the possible release of asbestos fibers from the material either by creating a membrane over the surface (bridging encapsulant) or by penetrating into the material and binding its components together (penetrating encapsulant).

17. Enclosure: All herein-specified procedures necessary to enclose…