Mar 31 pc_02411_Mod1.pdf

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BUILDING DEMOLITION

SECTION 02411

MARCH 31, 2010

GENERAL

1.1 SUMMARY

A. This Section includes demolition and removal of the following:

1. Buildings and structures.

2. Site improvements [including site utilities].

B. Clearing and removal of above- and below-grade improvements not part of building demolition shall be AS SHOWN ON THE DRAWINGS.

1.2 DEFINITIONS

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

B. Remove and Salvage: Detach items from existing construction and deliver them to THE Con-tracting Officer (CO) [ready for reuse].

C. Existing to Remain: Existing items of construction that are not to be removed and that are not otherwise indicated to be removed, removed and salvaged, or recycled.

D. Hazardous Materials: Lead Based Paint, Asbestos Containing Materials, and other materials known to pose a physical or health hazard as defined by OSHA.

1.3 MATERIALS OWNERSHIP

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

Carefully remove and salvage each item or object in a manner to prevent damage and deliver promptly to the CO.

1.4 SUBMITTALS

A. Qualification Data: For the following:

1. Demolition firm.

2. Hazardous Materials handling and disposal qualifications for:

a. Asbestos Containing Material (ACM)

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b. Lead Based Paint (LBP)

B. Proposed Protection and Control Measures: Submit statement or drawing that indicates the measures proposed for use, proposed locations, and proposed time frame for their operation.

Identify options if proposed measures are later determined to be inadequate. Include measures for the following:

1. Environmental protection.

2. Dust control.

3. Noise control.

C. Schedule of Building Demolition Activities: Indicate detailed sequence of demolition and re-moval work, with starting and ending dates for each activity, interruption of utility services, and locations of temporary protection and means of egress.

D. Predemolition: Show existing conditions of adjoining construction and site improvements, that might be misconstrued as damage caused by building demolition operations. Submit before

Work begins.

E. Landfill Records: Indicate receipt and acceptance of hazardous wastes by a landfill facility li-censed to accept hazardous wastes.

F. Statement of Refrigerant Recovery: Signed by refrigerant recovery technician responsible for recovering refrigerant, stating that all refrigerant that was present was recovered and that re-covery was performed according to EPA regulations. Include name and address of technician and date refrigerant was recovered.

1.5 QUALITY ASSURANCE

A. Refrigerant Recovery Technician Qualifications: Certified by EPA-approved certification pro-gram.

B. Regulatory Requirements: Comply with governing EPA notification regulations before begin-ning demolition. Comply with hauling and disposal regulations of authorities having jurisdic-tion.

C. Standards: Comply with ANSI A10.6 and NFPA 241.

D. Asbestos Survey and Report: Must be performed by an AHERA accredited inspector.

E. Asbestos Worker Certification: Certified by Washington State under WAC 296-65-010 or

WAC 296-65-035.

F. Asbestos Supervisor Certification: Certified by Washington State under WAC 296-65-012 or

WAC 296-65-035.

G. Contractor Certification for Asbestos Removal: Certified by Washington State under WAC

296-65-017.

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1.6 PROJECT CONDITIONS

A. Buildings to be demolished will be vacated and their use discontinued before start of Work.

B. The Government may occupy other buildings immediately adjacent to demolition area. Con-duct building demolition so Government operations will not be disrupted.

1. Provide not less than 72 hours notice to CO of activities that will affect Government op-erations.

2. Maintain access to existing walkways, exits, and other adjacent occupied or used facili-ties.

a. Do not close or obstruct walkways, exits, or other occupied or used facilities with-out written permission from the C.O.

C. Government assumes no responsibility for buildings and structures to be demolished.

1. The Government as far as practical will maintain conditions existing at time of inspection for bidding purpose.

2. Before building demolition, the Government will remove the following items: NONE

a. Hazardous Materials: Hazardous materials are present in buildings and structures to be demolished. A report on the presence of hazardous materials is on file for re-view and use. Examine report to become aware of locations where hazardous ma-terials are present.Hazardous material remediation shall follow the approved Health and Safety Plan.

b. Do not disturb hazardous materials or items suspected of containing hazardous ma-terials except under procedures specified in the approved Health and Safety Plan, and in compliance with OSHA, and WISHA.

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

1.7 COORDINATION

A. Arrange demolition schedule so as not to interfere with the Government’s on-site operations.

PRODUCTS

2.1 SOIL MATERIALS

A. Satisfactory Soils: Suitable fill material may be obtained from sources AS SHOWN ON THE

DRAWINGS.

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EXECUTION

3.1 EXAMINATION

A. Survey existing conditions and correlate with requirements indicated to determine extent of building demolition required.

B. Review Project Record Documents of existing construction provided by CO. Government does not guarantee that existing conditions are same as those indicated in Project Record Docu-ments.

C. Inventory and record the condition of items to be removed and salvaged.

D. When unanticipated mechanical, electrical, or structural elements are encountered, investigate and measure the nature and extent of the element. Promptly submit a written report to CO.

E. 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 building demolition operations.

F. Asbestos:

1. The Contractor shall perform asbestos related work as described by one of the two op-tions below:

a. Provide an independent Asbestos Survey and Report on building materials pre-sumed to contain asbestos in each residence to be demolished. All samples shall be tested by a NVLAP accredited laboratory and shall use Asbestos Fiber Analysis by the Polarized Light Method (PLM).

b. In the absence of an independent Asbestos Survey and Report, or if one cannot be safely be performed, all surfacing materials and thermal insulation in all buildings must be presumed to contain asbestos and abated and disposed of as such.

2. Contractor shall notify:

a. The State in accordance with WAC 296-65-020 prior to commencing any asbestos abatement work identified during the survey.

b. The SWCAA at least 10 days in advance of asbestos abatement work.

3. Asbestos abatement shall be performed in accordance with 40 CFR 61, Part M, and the

Southwest Clean Air Agency (SWCAA), and other Federal, State and local regulations as applicable.

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

G. Lead Based Paint:

1. Contractor shall take samples of each similarly-contaminated surface (one sample of each wall that has a different painted surface, both interior and exterior).

2. Samples shall be the full depth of paint on each surface. All surfaces are expected to con-tain multiple layers of paint.

3. All samples shall be sent to a lab accredited by the National Lead Laboratory Accredita-tion Program (NLLAP) for TCLP analysis. (http://www.epa.gov/lead/pubs/nllaplist.pdf)

4. Materials exceeding the TCLP threshold (5.0 or more milligrams per liter) shall be re-moved and segregated for disposal as hazardous waste.

http://www.epa.gov/lead/pubs/nllaplist.pdf

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

3.2 PREPARATION

A. Refrigerant: Remove and store refrigerant according to 40 CFR 82 and regulations of authori-ties having jurisdiction. (Applicable for central Air-conditioning systems)

B. Existing Utilities: Locate, identify, disconnect, and seal or cap off indicated utilities serving buildings and structures to be demolished.

1. If utility services are required to be removed, relocated, or abandoned, before proceeding with building demolition provide temporary utilities that bypass buildings and structures to be demolished and that maintain continuity of service to other buildings and structures.

2. Cut off lines, pipe or conduit AS SHOWN ON THE DRAWINGS.

C. Temporary Shoring: Provide and maintain interior and exterior shoring, bracing, or structural support to preserve stability and prevent unexpected movement or collapse of construction be-ing demolished.

D. Removed and Salvaged Items: Comply with the following:

1. All salvaged material becomes the property of the contractor.

3.3 PROTECTION

A. Existing Facilities: Protect adjacent walkways, loading docks, building entries, and other building facilities during demolition operations.

B. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during demolition. When permitted by CO, items may be removed to a suitable, protected sto-rage location during demolition and reinstalled in their original locations after demolition oper-ations are complete.

C. Existing Utilities: Maintain utility services indicated to remain and protect them against dam-age during demolition operations.

1. Do not interrupt existing utilities serving adjacent occupied or operating facilities unless authorized in writing by CO and authorities having jurisdiction.

2. Provide temporary services during interruptions to existing utilities, as acceptable to the

Government and to authorities having jurisdiction. Provide at least 72 hours' notice to CO if shutdown of service is required during changeover.

D. Temporary Protection: Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, where required by authorities having jurisdiction, and as indicated.

Comply with requirements in Division 1 Section "Temporary Facilities and Controls."

1. Protect existing site improvements, appurtenances, and landscaping to remain.

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2. Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

3. Provide protection to ensure safe passage of people around building demolition area and to and from occupied portions of adjacent buildings and structures.

4. Protect walls, windows, roofs, and other adjacent exterior construction that are to remain and that are exposed to building demolition operations.

3.4 DEMOLITION, GENERAL

A. General: Demolish indicated existing buildings and site improvements completely. Use me-thods required to complete the Work within limitations of governing regulations and as fol-lows:

1. Do not use cutting torches until work area is cleared of flammable materials. Maintain fire watch with portable fire-suppression devices during flame-cutting operations.

2. Maintain adequate ventilation when using cutting torches.

3. Locate building demolition equipment and remove debris and materials so as not to im-pose excessive loads on supporting walls, floors, or framing.

B. Engineering Surveys: Perform surveys as the Work progresses to detect hazards that may re-sult from building demolition activities.

C. Site Access and Temporary Controls: Conduct building demolition and debris-removal opera-tions to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

1. Do not close or obstruct streets, walks, walkways, or other adjacent occupied or used fa-cilities without permission from CO and authorities having jurisdiction. Provide alternate routes around closed or obstructed traffic ways if required by authorities having jurisdic-tion.

2. Use water mist and other suitable methods to limit spread of dust and dirt. Comply with governing environmental-protection regulations. Do not use water when it may damage adjacent construction or create hazardous or objectionable conditions, such as ice, flood-ing, and pollution.

3.5 MECHANICAL DEMOLITION

A. Remove buildings intact when permitted by C.O.

B. Proceed with demolition of structural framing members systematically, from higher to lower level. Complete building demolition operations above each floor or tier before disturbing sup-porting members on next lower level.

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

1. Remove structural framing members and lower to ground by method suitable to minimize ground impact or dust generation.

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D. Carpet and pad: Remove in large pieces and roll tightly after removing demolition debris, trash, adhesive, and tack strips.

E. Building Components: Remove the following components, as whole units, intact and unda-maged:

1. Metal gratings.

2. Doors.

3. Windows.

4. Door hardware.

5. Cabinets.

6. Mirrors.

7. Toilet accessories.

8. Plumbing fixtures.

9. Light fixtures.

F. Equipment: Disconnect equipment at nearest fitting connection to services, complete with ser-vice valves. Remove as whole units, complete with controls.

G. Below-Grade Construction: Demolish foundation walls and other below-grade construction that is within 10 feet (3 m) outside of footprint of existing building. Abandon below-grade construction outside this area.

H. Existing Utilities: Abandon existing utilities and below-grade utility structures except AS

SHOWN ON TH DRAWINGS. Cut utilities flush with grade.

3.6 EXPLOSIVE DEMOLITION

A. Explosives: Use of explosives is not permitted.

3.7 SITE RESTORATION

A. Below-Grade Areas: Completely fill below-grade areas and voids resulting from building de-molition operations with satisfactory soil materials according to backfill requirements in Divi-sion 2 Section "Earthwork."

B. Site Grading: Uniformly rough grade area of demolished construction to a smooth surface, free from irregular surface changes. Provide a smooth transition between adjacent existing grades and new grades.

3.8 REPAIRS

A. General: Promptly repair damage to adjacent construction caused by building demolition oper-ations.

B. Where repairs to existing surfaces are required, patch to produce surfaces suitable for new ma-terials.

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C. Restore exposed finishes of patched areas and extend restoration into adjoining construction in a manner that eliminates evidence of patching and refinishing.

3.9 RECYCLING DEMOLISHED MATERIALS

A. General: Separate recyclable demolished materials from other demolished materials to the maximum extent possible. Separate recyclable materials by type.

1. Provide containers or other storage method approved by CO for controlling recyclable materials until they are removed from Project site.

2. Stockpile processed materials on-site without intermixing with other materials. Cover to prevent windblown dust and protect from the weather.

3. Stockpile materials away from demolition area. Do not store within drip line of remain-ing trees.

4. Transport recyclable materials off Government’s property and legally dispose of them.

B. Recycling Incentives: Revenues, savings, rebates, tax credits, and other incentives rceived for recycling building demolition materials shall accrue to the contractor.

3.10 DISPOSAL OF DEMOLISHED MATERIALS

A. General: Except for items or materials indicated to be reinstalled, or otherwise indicated to re-main Government property, remove demolished materials from Project site and legally dispose of them in an EPA-approved landfill.

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.

B. Burning: Do not burn demolished materials.

C. Disposal: Transport demolished materials off Government property and legally disposes of them.

3.11 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by building demo-lition operations. Return adjacent areas to condition existing before building demolition opera-tions began.

END OF SECTION 02221