B09_Amd_06_02_41_13_-_Site_Selective_Demolition_0006.pdf

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053123 SITE SELECTIVE DEMOLITION

SECTION 02 41 13 - SITE SELECTIVE DEMOLITION

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Sawcutting and removal or recycling of existing asphalt concrete pavement.

2. Sawcutting and removal or recycling of existing cement concrete pavement.

3. Sawcutting and removal or recycling of existing asphalt concrete walkways.

4. Sawcutting and removal or recycling of existing cement concrete walkways.

5. Removal or recycling of existing gravel surfacing.

6. Abandonment of existing water lines.

7. Removal and salvage of existing site features for reinstallation to include:

a. Stone curbing

b. Signs

c. Wall stones

d. Wooden post with built-in path light

e. Landscape boulders

8. Removal and salvage of existing site features to provide to CO to include:

a. Viewfinder pedestal

b. USGS Seal from stone base (indicated on Drawings)

c. (2) Plaques from building exterior (indicated on Drawings)

9. Demolition, removal, and disposal of the following items:

a. Traffic signs

b. Wayfinding signs

c. Traffic loops

d. Post and cable barrier

e. Water tanks including foundations

f. Culverts and headwalls

g. Sewer and water utilities

h. Septic tank

i. Acid dilution tank

j. Wood fence

k. Utility vaults

l. Water fountain

m. Phone booth

n. Information board

o. Gate and posts

p. Pavement markings

q. Asphalt pavement

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B. Related Sections include the following:

1. Section 01 57 23 – Temporary Storm Water Pollution Prevention

2. Section 01 74 19 – Construction Waste Management and Disposal

3. Section 02 82 00 – Asbestos Remediation

4. Section 02 83 00 – Lead Remediation

5. Section 31 10 00 – Site Clearing

6. Section 31 20 00 – Earth Moving

7. Section 31 25 00 – Erosion and Sediment Controls

1.2 DEFINITIONS

A. Remove: Remove and legally dispose of items except those indicated by the Contracting Officer

(CO) to be salvaged, reused, reinstalled, or to remain on Park property in a location approved of by the CO.

B. Remove and Store for Reinstallation: Remove items indicated; clean, service, and otherwise prepare items for reuse; store and protect against damage. Reinstall items in locations indicated in the plans and specifications or as directed by the CO.

C. Existing to Remain: Protect items identified to remain against damage and soiling during demolition. When permitted by the CO, items may be removed to a suitable, protected storage location during demolition and then cleaned and reinstalled in their original locations.

D. Abandon: Abandon items indicated. Leave items in place and abandon as specified.

1.3 SUBMITTALS

A. Submit the following for the aboveground water tanks and underground fuel-oil tank demolition:

1. Detailed Work Plan – This plan shall be submitted within 15 days after the issuance of the Notice to Proceed and shall detail all proposed methods and sequences of operations including, but not limited to:

a. Tank appurtenance removal.

b. Removal and disposal of industrial waste.

c. Dismantling procedures.

d. Transportation and disposal of:

1) Aboveground water tanks and contents

2) Underground fuel-oil tank and contents

e. Protection of existing structures and utilities.

f. Site safety plan

2. Documentation of acceptance of waste materials by a permitted facility capable to dispose of said waste materials. Documentation must be provided within 7 days of delivery to permitted facility.

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3. Letters of acceptance from permitted facilities and haulers. Letters shall be provided at least 14 days prior to transportation of any wastes.

1.4 MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, salvaged, or otherwise indicated to remain on the Park property, demolished materials shall become the Contractor’s property and shall be removed and legally disposed of at the Contractor’s expense.

B. Materials for removal and reinstallation:

1. The following materials shall be removed, cleaned, and prepared for reinstallation at the project site as indicated in the plans and specifications.

a. Stone curbing

b. Signs

c. Wall stones

d. Traffic signs

e. Wood post with built-in path light

f. Landscape boulders

C. Materials to remove and provide to CO:

1. The following materials shall be removed, cleaned, and provided to the CO.

a. Viewfinder pedestal

b. USGS Seal from stone base (indicated on Drawings)

c. (2) Plaques from building exterior (indicated on Drawings)

D. Materials for removal and disposal:

1. The following materials shall be removed from the site and legally disposed of.

a. Traffic signs

b. Wayfinding signs

c. Traffic loops

d. Post and cable barrier

e. Water tanks including foundations

f. Culverts and headwalls

g. Sewer and water utilities

h. Septic tank

i. Acid dilution tank

j. Oil tank

k. Wood fence

l. Utility vaults

m. Water fountain

n. Phone booth

o. Information board

p. Gate and posts

q. Pavement markings

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1.5 QUALITY ASSURANCE

A. Comply with Sections 01 11 00 – Summary of Work and 01 11 40 – Resource Protection Work

Restrictions regarding hours of operations and allowable noise levels. Monitor vibrations generated by the demolition activities and received by the existing structures in the immediate vicinity of the project.

1.6 SCHEDULING

A. Notify the Contracting Officer 48 hours prior to beginning demolition work.

B. Contractor shall coordinate underground utility location prior to beginning demolition work.

Contractor is responsible for verifying location of underground utilities.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.1 UTILITY SERVICES

A. Utility requirements: Locate, identify, disconnect, and seal or cap off indicated utility services where indicated.

1. Arrange to shut off indicated utilities with utility companies.

3.2 PREPARATION

A. Install erosion and sediment control measures, as specified in Section 31 25 00 – Erosion and

Sediment Controls, prior to demolition.

B. Install site protection fencing, as specified in Section 01 50 00 – Temporary Facilities & Controls, prior to demolition.

C. Conduct demolition operations and remove debris to ensure minimum interference with roads, driveways, and other adjacent occupied and used facilities.

1. Do not close or obstruct roads, or other adjacent occupied or used facilities without permission from the CO and authorities having jurisdiction. Provide alternate routes around closed or obstructed traffic ways.

D. Conduct demolition operations to prevent injury to people and damage to facilities to remain.

Ensure safe passage of people around demolition area.

1. Erect temporary protection, such as walks, fences, and railings, where required by

Contracting Officer.

2. Protect existing improvements, appurtenances, and landscaping to remain.

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3. Erect protective fencing around drip line of individual trees or around perimeter drip line of groups of trees to remain according to requirements specified in Section 31 10 00 – Site

Clearing.

4. A vertical sawcut shall be made between any existing pavement that is to remain and the portion to be removed. Where sawcutting is required, the sawcut shall be a minimum of 3 inches deep. When the existing pavement is more than 3 inches thick, the portion below 3 inches may be broken after the sawcut is made.

3.3 POLLUTION CONTROLS

A. Use water mist, temporary enclosures, and other suitable methods to limit the spread of dust and dirt. Comply with governing environmental protection regulations.

1. Do not create hazardous or objectionable conditions, such as ice, flooding, and pollution, when using water.

2. The Contractor shall be responsible for ensuring that special precautions are undertaken during sawcutting operations. No concrete (asphalt or cement) or concrete by-products are to be discharged into any storm drain or surface water. Sawcutting operations will increase the pH of water, therefore filtering is not acceptable.

B. Remove and transport debris in a manner that will prevent spillage on site improvements or public roads.

3.4 DEMOLITION

A. Road Shoulder Removal: In areas where new roadway will be added next to existing, remove all shoulder material and excess asphalt from the area.

B. Roadway Removal: In areas where existing roadway will be removed and revegetated, remove all paving and basecourse material including road shoulder material and excess asphalt.

C. Filling Below-Grade Areas: Completely fill below-grade areas and voids resulting from demolition of existing surfaces and construction shown on the plans with soil materials according to requirements specified in Section 31 20 00 – Earth Moving.

D. Damages: Promptly repair damage to adjacent facilities caused by demolition operations.

3.5 ABANDONED WATER LINES

A. Abandoned water mains shall be plugged and sealed watertight by means of a ductile iron plug or cap, or by permanently sealing with a minimum of 8-inch thick bulkhead constructed of Class

B or a commercial mix concrete.

B. The concrete cover shall provide a minimum of 6 inches cover around the outside of the pipe and shall extend a minimum of 6 inches in each direction from the end of the pipe.

C. All existing valves that will have pressure on one side and an abandoned main on the other side shall be closed with a ductile iron plug and blocked with reaction backing on the side where the main has been abandoned.

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D. A portion of the abandoned pipe shall be removed to allow clearance for plugging and backing.

3.6 DISPOSAL AND RECYCLING OF DEMOLISHED MATERIALS

A. Promptly dispose of or recycle demolished materials: If recycling requires additional time to accomplish, provide for orderly storage of materials. Comply with the waste management requirements in Division 01.

B. Transport demolished materials off Park property and legally dispose or recycle material.

3.7 FUEL-OIL TANK REMOVAL AND DISPOSAL

A. The existing fuel-oil tank decommissioning and removal shall be performed by an International

Code Council (ICC)-certified Underground Storage Tank (UST) service provider.

B. At least thirty days before beginning permanent closure an UST, owners and service provider must notify the State of Hawaii, Department of Health (DOH) of their intent to permanently close the UST, as required in Hawaii Administrative Rules section 11-280.1-34. The required assessment of the excavation zone under Hawaii Administrative Rules section 11-280.1-72 must be performed after notifying the department but before completion of the permanent closure. At least seven days before excavation work for a permanent closure, owners or service provider must notify the department of the exact date that the work will occur, as required in Hawaii

Administrative Rules section 11-280.1-34.

C. To permanently close an UST, owners and service providers must:

1. Empty and clean the UST and tank system by removing all liquids and accumulated sludges;

2. Remove the UST or tank system from the ground

3. Conduct a site assessment in accordance with Hawaii Administrative Rules section 11-

280.1-72.

D. Within thirty days of completing a permanent closure, owners and service provider must submit to the department:

1. A notification as required in section 11-280.1-34; and

2. A UST closure report, including the results of the site assessment conducted in accordance with Hawaii Administrative Rules section 11-280.1-72.

E. Hawaii Fire Department (County of Hawaii) requires permit 66.1.5 for removal of tanks containing flammable or combustible liquids in excess of 60 gallons.

F. Assessing the site at closure

1. Before permanent closure is completed, owners and service provider must measure for the presence of a release where contamination is most likely to be present at the UST site. In selecting sample types, sample locations, and measurement methods, owners and service provider must consider the method of closure, the nature of the stored substance, the types

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of backfill and surrounding soil, the depth and flow of groundwater, and other factors appropriate for identifying the presence of a release.

2. If contaminated soils, contaminated groundwater, or free product (a regulated substance that is present as a non-aqueous phase liquid) as a liquid or vapor is discovered under E.1.

above, or by any other manner, owners and service provider must begin release response action in accordance with Hawaii Administrative Rules Chapter 11-208.1 Subchapter 6.

3. Immediate response actions

a. Upon confirmation of a release in accordance with Hawaii Administrative Rules

Chapter 11-280.1-52 or after a release from the UST system is identified in any other manner, owners and operators must perform the following response actions within twenty-four hours:

1) Report the release to the DOH by telephone;

2) Take necessary actions to prevent any further release of the regulated substance into the environment, including removal of as much of the regulated substance from the UST or tank system as possible;

3) Identify and mitigate any safety hazards (such as fire, explosion, and vapor hazards) posed by the release of the regulated substance; and

4) Take necessary action to minimize the spread of contamination.

b. Within seven days of confirmation, owners and operators must accurately complete and submit to the department the confirmed Release Notification form prescribed by the director.

c. An owner or operator must submit the appropriate forms listed in Hawaii

Administrative Rules section 11-280.1-lll (b) documenting current evidence of financial responsibility to the director within thirty days after identifying a release from an underground storage tank or tank system required to be reported under this section.

4. Initial abatement measures and site assessment

a. Unless directed to do otherwise by the DOH, owners and operators must perform the following abatement measures:

1) Continue to remove as much of the regulated substance from the UST system as is necessary to prevent further release to the environment;

2) Visually inspect the area around the UST or tank system for evidence of any aboveground releases or exposed belowground releases and continue to take necessary actions to minimize the spread of contamination and to prevent further migration of the released substance into surrounding soils, air, surface water, and groundwater;

3) Continue to monitor and mitigate any additional fire and safety hazards posed by vapors or free product that have migrated from the UST excavation zone and entered into subsurface structures (such as sewers or basements);

4) Remedy hazards (such as dust and vapors and the potential for leachate generation) posed by contaminated soils and debris that are excavated or exposed as a result of release confirmation, site investigation, abatement, or release response action activities;

5) Conduct an assessment of the release by measuring for the presence of a release where contamination is most likely to be present at the UST site, HAVO - 305150, 318523, 315026, 250523, 254676 02 41 13 - 8 unless the presence and source of the release have been confirmed in accordance with the site assessment required by Hawaii Administrative Rules section 11-280.1-52(b) or the site assessment required for change-in-service or permanent closure in Hawaii Administrative Rules section 11-280.l-72(a).

In selecting sample types, sample locations, and measurement methods, the owner and operator must consider the nature of the stored substance, the type of backfill and surrounding soil, depth and flow of groundwater and other factors as appropriate for identifying the presence and source of the release;

6) Investigate to determine the possible presence of free product, and begin free product removal in accordance with Hawaii Administrative Rules section 11-

280.1-64;

7) Remove or remediate contaminated soil at the site to the extent necessary to prevent the spread of free product; and

8) If any of the remedies in this section include treatment or disposal of contaminated soils, owners or operators must comply with all applicable local, state, and federal requirements.

b. Within twenty days after release confirmation, or within another reasonable period of time determined by the DOH, owners and operators must submit a report to the

DOH summarizing the initial abatement steps taken under subsection 1) and any resulting information or data.

5. Free product removal

a. At sites where investigations under Hawaii Administrative Rules section 11-280.1-

62(a) (6) indicate the presence of free product, owners and operators must remove free product to the maximum extent practicable as determined by the DOH while continuing, as necessary, any actions initiated under Hawaii Administrative Rules sections 11-280.1-61 to 11-280.1-63, or preparing for actions required under Hawaii

Administrative Rules sections 11-280.1-65 to 11-280.1-66. In meeting the requirements of this section, owners and operators must:

1) Conduct free product removal in a manner that minimizes the spread of contamination into previously uncontaminated zones by using recovery and disposal techniques appropriate to the hydrogeologic conditions at the site, and that properly treats, discharges or disposes of recovery byproducts in compliance with applicable local, state, and federal regulations;

2) Use abatement of free product migration as a minimum objective for the design of the free product removal system;

3) Handle any flammable products in a safe and competent manner to prevent fires or explosions; and

4) Prepare and submit to the DOH, within forty-five days after confirming a release, or within another reasonable period of time determined by the DOH, a free product removal report that provides at least the following information:

a) The name of the person responsible for implementing the free product removal measures;

b) The estimated quantity, type, and thickness of free product observed or measured in wells, boreholes, and excavations;

c) The type of free product recovery system used;

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d) Whether any discharge will take place on-site or off-site during the recovery operation and where this discharge will be located;

e) The type of treatment applied to, and the effluent quality expected from, any discharge;

f) All actions already performed or currently underway to remove free product, including steps that have been or are being taken to obtain necessary permits for any discharge;

g) The disposition of the recovered free product; and

h) Schedule for completion of free product removal.

b. Owners and operators shall initiate free product removal as soon as practicable but no later than thirty days following confirmation of a release, or sooner if directed by the DOH.

6. Investigations for soil and groundwater cleanup

a. In order to determine the full extent and location of soils contaminated by the release and the presence and concentrations of dissolved product contamination in the groundwater and surface water, owners and operators must conduct investigations of the release, the release site, and the surrounding area possibly affected by the release if any of the following conditions exist:

1) There is evidence that groundwater wells have been affected by the release

(e.g., as found during release confirmation or previous release response actions);

2) Free product is found to need recovery in compliance with Hawaii

Administrative Rules section 11-280.1-64;

3) There is evidence that contaminated soils may be in contact with groundwater

(e.g., as found during conduct of the initial response measures or investigations required under Hawaii Administrative Rules sections 11-

280.1-60 to 11-280.1-64); and

4) The DOH requests an investigation, based on the potential effects of contaminated soil or groundwater on nearby surface water and groundwater resources.

b. Owners and operators must include information collected in accordance with this section with each quarterly report required pursuant to section 11-280.1-65.2

7. Site cleanup criteria

a. Owners and operators must remediate contaminated soil, groundwater, and surface water at the site to residual concentrations that meet one of the following criteria:

1) Default Tier 1 Screening Levels as presented in Table 1 in Hawaii

Administrative Rules section 11-280.1-65.3 subsection (e); or

2) Site-specific action levels as approved by the DOH. Owners and operators should consult with the DOH on how the standards in this paragraph can be met. Site-specific action levels must take into account the following factors:

a) For systemic toxicants, acceptable levels shall represent concentration levels to which the human population may be exposed without adverse

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effect during a lifetime or part of a lifetime, and incorporating an adequate margin of safety;

b) For known or suspected carcinogens, acceptable levels are generally concentration levels in soil, groundwater and vapor that represent an excess upper bound lifetime cancer risk to an individual of between 10-

4 and 10-6 using information on the relationship between dose and response. The 10- 6 excess risk level shall be used as the point of departure for determining acceptable level s for alternatives when chemical-specific state or federal requirements are not available or are not sufficiently protective because of the presence of multiple contaminants at the site or multiple pathways of exposure;

c) Impacts to ecological receptors, including but not limited to plants and animals; and

d) Other applicable requirements, including but not limited to nuisance concerns for odor and taste, if applicable.

b. The DOH may require the owners and operators to modify cleanup activities being performed at a site if the DOH determines that the activities are not being carried out in accordance with this Hawaii Administrative Rules section 11-280.1-65.3, or are not achieving cleanup levels that are protective of human health and the environment. The DOH may impose modifications to cleanup activities by written notice to the owners and operators, and the owners and operators must implement necessary changes to the cleanup activities in response to the DOH's notice by a time schedule established by the DOH.

c. A schedule for estimated completion of site cleanup shall be included in each fourth quarter report required pursuant to Hawaii Administrative Rules section 11-280.1-

65.2(b).

G. Piping, except any vent lines, shall be drained of product and removed from the ground.

H. Soil contaminated by petroleum and/or hazardous substances must be remediated under the

Model Toxics Control Act, which describes the process for cleaning up contaminated sites.

Contaminated soil must be disposed of at a permitted facility that accepts dangerous waste.

3.8 DIESEL TANK REMOVAL AND DISPOSAL

A. ConVault concrete encased steel tank

1. Empty tank of diesel fuel.

2. Remove all electrical conduit and appurtenances from the tank prior to dismantling of the tank.

3. Remove vents and associated piping from the tank prior to dismantling of the tank.

4. Disconnect all piping from the tank prior to dismantling of the tank.

5. The tank shall be removed from the site in one piece and disposed of at a permitted facility that accepts dangerous waste.

B. Hawaii Fire Department (County of Hawaii) requires permit 66.1.5 for removal of tanks containing flammable or combustible liquids in excess of 60 gallons.

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3.9 SEPTIC SYSTEM TANK REMOVAL AND DISPOSAL

A. Concrete Septic Tank

1. Pump out existing septic tank

2. Remove concrete risers and lid and dispose.

3. Remove top of tank and dispose.

4. Remove tank and dispose.

3.10 WATER TANKS REMOVAL AND DISPOSAL

A. Special conditions

1. Asbestos containing materials

a. The filler material between the tank and concrete foundation contains greater than

1% asbestos.

1) The asbestos containing material is likely to be disturbed during the demolition activities, so the material must be removed prior to the demolition activity.

b. All removal must be completed by a certified asbestos abatement contractor under controlled conditions in accordance with United States Environmental Protection

Agency (EPA) and Hawaii Department of Health (HDOH) regulations. Work should also be monitored by the HDOH accredited Asbestos Project Monitor.

2. Lead in paint

a. Lead-based paint was not identified in a hazardous materials inspection. However, lead at concentrations below the EPA guideline were detected in various paint/coating. These paints have lead concentrations of less than 0.5% by weight and are identified as lead-containing paint (LCP).

b. Prior to the disturbance of LCP, the contractor’s employees disturbing the lead paint must be informed that it contains lead and must conduct all lead paint disturbance work in accordance with Occupational Safety and Health Administration (OSHA)

29 CFR 1926.62 Lead. If any untested paints are disturbed, they should be assumed to contain lead.

c. If lead paint chip or waste is generated during the renovation and/or demolition work, composite samples of the generated waste must be collected for Toxicity

Characteristic Leaching Procedure (TCLP) analysis to determine the waste disposal characterization.

d. Hawaii Administrative Rules, Title 11, Department of Health, Chapter 261, Hazardous Waste Management allows a maximum concentration of lead contaminant by TCLP at 5.0 mg/L. TCLP results exceeding the 5.0 mg/L threshold requires the material to be disposed of as hazardous waste. Results below this threshold allow for the lead waste to be disposed of as construction debris.

e. Note that painted metal components are exempt from TCLP testing and hazardous waste disposal if recycled.

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3. Lead in soil

a. Samples collected from Decision Unit 1 (Bare soil within the one foot lateral of the

40,000 gallon and 80,000 gallon water tank foundations and 0”-6” below ground surface.) contained level of lead at 320 mg/kg which is above the HDOH

Unrestricted/Residential EAL of 200 mg/kg but below the Commercial/Industrial

EAL of 800 mg/kg.

b. Samples collected from Decision Unit 2 (Bare soil within the one foot lateral of the

40,000 gallon and 80,000 gallon water tank foundations and 6”-12” below ground surface.) contained level of lead at 58 mg/kg.

c. Additionally, the TCLP sample concentrations did not exceed the HDOH Maximum

Concentration of Contaminants for the Toxicity Characteristic (11-261) of 5.0 mg/L.

Based on this result, the soil may be disposed of at a local landfill that will accept such soil.

B. Removal of water tanks

1. The procedures to remove the existing water tanks shall include, but not be limited to, the following:

a. Remove all electrical conduit and appurtenances from the tanks prior to dismantling of the tanks.

b. Disconnect and cap all piping from the tanks prior to dismantling. Protect the 2” diameter supply line to the larger tank.

c. Protect adjacent radio room building. Contractor shall be responsible for repairing any damage to the radio room building.

d. Remove all water that may be present that is capable of being pumped out of the tanks.

e. Drain or flush all water from piping into the tanks.

f. Remove aboveground water tanks in accordance with approved work plan.

2. The concrete foundations of the aboveground water tanks shall be removed down to a depth of 2’-6” below grade.

C. Disposal of tank contents and demolished materials

1. All removed tank materials shall be loaded and trucked away from the site in such a manner as to not cause any hazard for passersby or damage to any existing facility. Any damage shall be repaired or replaced by the Contractor at no additional cost to the government.

2. All waste material shall be disposed of in accordance with all federal, state, and local regulations.

3. All waste materials shall become the responsibility of the Contractor and the Contractor shall be responsible for the safe and proper removal and disposal of all waste materials.

4. Storage of waste materials at the site is not permitted.

5. All fees and transportation costs are the responsibility of the Contractor. The Contractor shall bear full responsibility for any and all fines against the project resulting from the improper handling and disposal of the waste materials.

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3.11 DRAIN PIT REMOVAL AND DISPOSAL

A. Drain Pit

1. Pump Out

a. Pump out all liquids, remove all blockages, sediments, debris, sludge and organic matter in the drain pit, so as to expose the natural ground at the bottom of the drain pit.

b. All liquid, sediments, debris, sludge and organic matter removed from the drain pit shall be handled and disposed of properly, in accordance with County, State and

Federal regulations.

2. Removal

a. Remove reinforced concrete drain pit cover and dispose

b. Remove concrete drain pit and dispose

c. Remove manhole frame and cover, including grade rings, and dispose

d. Remove pipe between drain pit and septic tank and dispose

e. Fill area of removed drain pit per Section 31 20 00 – Earth Moving

3.12 ACID WASTE NEUTRALIZATION TANK REMOVAL AND DISPOSAL

A. Acid Waste Neutralization Tank

1. Remove reinforced concrete cover and dispose

2. Remove manhole cover and frame and dispose

3. Remove reinforced CMU block walls and dispose

4. Remove acid neutralization tank and dispose in accordance with County, State and Federal regulations.

5. Remove inlet and outlet pipes and dispose

6. Fill area of removed acid waste neutralization tank per Section 31 20 00 – Earth Moving

END OF SECTION 02 41 13

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