SOW_Abatement_at_313_Walnut_04-22-15.docx

P age 7

Statement of Work

Asbestos Work Plan 311-313 Walnut Street

GENERAL REQUIREMENTS:

The following information is presented for the performance of demolition and environmental remediation activities related to abatement of designated asbestos containing materials. This work is being performed in conformance with all applicable federal, state and City of Philadelphia (PA) asbestos regulations and with the policy(s) set forth by Independence National Historical Park (INDE).

The abatement contractor shall be working directly for Independence National Historical Park (INDE). The abatement contractor shall serve as the prime contractor for this project.

All work will be performed in accordance with:

Where a conflict is noted within any regulations or requirements, the most stringent provisions as detailed therein shall apply. The abatement contractor shall thoroughly review all contract documents and investigate the building and work area to determine the quantities of materials to be addressed and all conditions that may affect the work. The omission of any location, area or surface within the contracted work area containing asbestos containing material (ACM)/asbestos contamination shall not relieve the abatement contractor from performing an independent and detailed investigation before submitting the bid nor the remediation of these materials, consistent with the project intent, within the base contract amount.

Before submitting a proposal the contractor/bidder shall fully inform themselves as to all existing conditions and limitations with respect to the site and work involved.

The abatement/demolition contractor shall not rely upon the accuracy of existing conditions noted on any drawings, but shall make a personal examination and accept all existing conditions unless an item is "concealed" by solid physical barriers and could not have been discovered during a diligent inspection of the work site. If conditions do exist that may be "concealed" and are not described herein to be incorporated as part of the work and cannot be accessed without performing some demolition, the abatement contractor should bring it to the attention of the Owner and the Environmental Consultant for clarification prior to submitting a bid. The preparation and submission of the bid shall indicate that the contractor/bidder has personally examined the work area and existing and anticipated conditions and accepts the building and work area "AS IS."

Quantities of material(s) and areas referenced for this project are presented to assist the abatement contractor/bidder in the preparation of a bid and are not intended to limit the scope of work. The abatement contractor/bidder is responsible for confirming quantities and locations of all ACM, and resulting ACM related activities, prior to submitting their bid. In addition, the abatement contractor/bidder is responsible to review all demolition drawings and actual conditions prior to submitting their bid.

The abatement contractor/bidder shall provide all required submittal documentation and shall have received non-disapproval of such submittal prior to commencing any work required under the contract.

SCOPE OF WORK

The scope of work for this project will entail the removal of the following asbestos containing materials within Rooms 118, 119, 120, 121, 122, 123, and 124 located in 311- 313 Walnut Street in Philadelphia, PA. Specific scope included in the asbestos abatement scope of work area as follows:

Approximately 1120 square feet of acoustical asbestos containing ceiling material.

Approximately 1120 square feet of 9x9 asbestos containing floor tile and associated mastic.

Note: The bidder is responsible to fully access all designated materials scheduled for abatement.

SPECIAL CONDITIONS

The general descriptions, specific requirements and sequencing of the work to be performed are presented below. The abatement contractor is responsible for the performance of all required activities, whether stated herein or not, to complete the work consistent with the project intent.

1. Project Schedule: The demolition abatement phases of this project shall be completed within the time frame designated by the Owner. A work shift is defined as one 8-hour period.

2. Phasing: The abatement contractor shall coordinate all abatement operations with the Owner and the Environmental Consultant.

3 Mobilization: Building access and transportation of equipment and materials shall be through the use of designated routes.

4. Equipment: All materials and equipment brought onto the site shall arrive clean and empty. Consumable supplies shall arrive on site in their original packages, containers, or bundles bearing the name of the manufacturer. Equipment with questionable maintenance and/or obvious physical damage and/or visible surface debris will not be allowed on site. Any delays due to these provisions shall be at the abatement contractor's cost.

5. Permits/Notifications/Fees: The abatement contractor shall secure all necessary permits, provide such notifications and pay applicable fees in conjunction with s material removal, transportation and disposal and make timely notification, as may be required by applicable law. This includes, at minimum, the City of Philadelphia, Commonwealth of Pennsylvania Department of Environmental Protection, the USEPA and any other local authorities maintaining jurisdiction.

6. Work Area Isolation: Upon mobilization by the abatement contractor, each work area shall be isolated in full accordance with the all applicable asbestos regulations. Work areas shall be isolated in accordance with City of Philadelphia Asbestos Control Regulations.

7. Negative Air: Negative air shall be established and maintained within the enclosure in full accordance with all applicable asbestos regulations.

8. Respiratory Systems: The abatement contractor shall provide all workers, foremen, superintendents, authorized visitors and inspectors personally issued and marked respiratory equipment in accordance with OSHA regulation 29 CFR 1926.58 and 29 CFR 1910.134. When respirators with disposable filters are employed, the abatement contractor shall provide a sufficient inventory of filters for replacement as necessary by the worker.

9. Air Monitoring: Daily air monitoring will be conducted by NPS consultant, retained as a third party environmental consultant (API) by the owner for this project. Samples will be collected both inside and outside the work area. Project samples will be analyzed via PCM Methodologies. All perimeter air samples (i.e., outside the work area) will meet the City of Philadelphia ACR delineated criteria. Should the ACR criteria be exceeded, the abatement contractor shall perform cleaning of the affected area.

10. Visual Inspection: Upon completion of removal operations, surface cleaning and transportation of waste from the work area, a visual inspection of each work area will be performed by the Environmental Consultant. The surfaces within the work area shall be dry prior to performing this inspection. The Contractor shall supply adequate lighting to facilitate the inspection and must have personnel available to identified deficiencies simultaneously during the inspection.

11. Encapsulation: Application of tinted lockdown encapsulant by the abatement contractor shall be made to visually coat the applied surface in its entirety and will be subject to inspection by the Environmental Consultant. Preparation, mixing and application shall be in accordance with the manufactures instructions. Where deficiencies are observed in the applied application of the lockdown encapsulant, the abatement contractor shall correct such deficiency at no additional cost.

12. Clearance Testing: Upon successful completion of the application of tinted lockdown encapsulant and the surfaces are dry, air clearance testing will be performed by the Environmental Consultant. Clearance Air Sampling will be performed in full accordance with applicable regulations.

13. Final Inspection: Upon completion of demobilization activities, a final inspection will be performed by the Owner and its Environmental Consultant to ensure demobilization has been completed. Where deficiencies are observed the abatement contractor shall correct such deficiencies at no additional cost.

14. Disposal: All generated wastes shall be disposed of by the abatement contractor in full accordance with all EPA and other applicable regulations.

15. Variances: Any variances requested in relation to this Work Plan or the applicable asbestos regulations for the specific jurisdiction must be approved by the Owner and the Environmental Consultant. Once approved, the variance request(s) shall then be submitted to the specific jurisdiction/regulatory body for review and final approval.

SPECIFIC ABATEMENT PLAN

1. The abatement contractor shall post required OSHA asbestos warning signs at all entrances to the Asbestos Control Area(s) and where waste materials are to be deposited. These signs shall remain in place until the successful completion of visual inspection and final clearance testing. The signs shall be posted in such a manner and locations that a person easily may read the legend:

DANGER ASBESTOS

CANCER AND LUNG DISEASE HAZARD AUTHORIZED PERSONNEL ONLY

RESPIRATORS AND PROTECTIVE CLOTHING ARE REQUIRED IN THIS AREA

2. Prior to removal/clean-up activities, the abatement contractor shall isolate each work area utilizing asbestos warning tape and critical barriers over all entrances. Critical barriers shall consist of a minimum of two (2) layers of 6 mil plastic sheeting.

3. Heating and ventilating systems in the Asbestos Control Area(s) shall be shut down to the extent feasible by the Owner. The abatement contractor shall seal any opening with two independent layers of 6 mil plastic sheeting to prevent contamination and fiber dispersal to other areas of the building.

4. Prior to commencing asbestos operations, the abatement contractor shall clean any gross/residual asbestos material identified within the Asbestos Controlled Area(s).

5. Prior to initiating asbestos removal activities, all nonessential and previously generated waste shall be removed from the Asbestos Controlled Area utilizing appropriate decontamination and/or disposal techniques. The Environmental Consultant shall perform an inspection of the Asbestos Controlled Area and issue written approval prior to proceeding with asbestos abatement.

6. Prior to initiating removal activities but only upon approval by the Owner, the abatement contractor shall perform demolition activity to gain access to the asbestos containing materials designated for removal.

ENCLOSURE REMOVAL

1. Construct critical barriers on all windows, doors and openings. Critical barriers shall consist of a minimum of two (2) layers of 6 mil plastic sheeting applied independently.

2. The work area shall be enclosed in two (2) layers of 6 mil plastic sheeting on the walls. All plastic sheeting shall be applied in independent layers.

3. Negative air HEPA ventilation system shall be installed and operated in accordance with ANSI Z9.2. AFDs shall be in sufficient quantity to provide a minimum of four (4) air exchanges per hour and a pressure differential of 0.02 inches of water. The local exhaust system shall be operated continuously, 24 hours a day, until the enclosure of the asbestos control area is removed. All negative air will be exhausted outdoors. Where outdoor exhaust cannot be facilitated, an alternate plan will be submitted by the abatement contractor for approval by the Environmental Consultant and applicable regulatory entities. Note: Pressure differential recordings for each work day will be reviewed by the Environmental Consultant. The Environmental Consultant will notify the abatement contractor and the Construction Manager immediately of any variance in the pressure differential which would cause exposure of adjacent unsealed areas to asbestos fiber concentrations in excess of the action level.

4. A three-stage decontamination system shall be constructed for each work area in full accordance with all applicable asbestos regulations. The decontamination system shall maintain at least three (3) independent chambers equipped with a shower. The shower shall maintain operable hot and cold water. Each decontamination system shall maintain a minimum of one (1) shower chamber per eight (8) workers.

5. Removal of all asbestos material shall be initiated and completed following the successful completion of a pre- commencement visual inspection by the Environmental Consultant.

6. Material from within the Asbestos Controlled Area shall not be permitted outside of the Asbestos Controlled Area except in asbestos identified sealed leak-tight containers.

7. All asbestos and asbestos-containing waste shall be properly packaged. All waste shall be thoroughly wetted with amended water before being placed into containers for disposal.

8. Bags and drums shall be marked with the label prescribed by 40 CFR, Section 61.152 and 29 CFR, Section 1926.58 of OSHA Regulations. The exterior of containers shall be wet-cleaned or HEPA vacuumed before leaving the Asbestos Controlled Area.

9. All free wastewater in contaminated areas shall be retrieved and placed in 6 mil plastic-lined, leak-tight drums or added to the asbestos waste.

10. Cleaning of the work area and subsequent visual inspections shall be performed in strict accordance with all applicable asbestos regulations.

FINAL TESTING

1. Following the visual inspection by Environmental Consultant, in accordance with applicable asbestos regulations, aggressive final air testing will be initiated. Final air tests will be analyzed utilizing TEM methodologies unless a variance for another method is granted by the City of Philadelphia Department of Health, Asbestos Air Management.

2. Upon achieving the clearance levels delineated in the City of Philadelphia, Asbestos Control Regulation, the work containment/regulated work area shall be dismantled and demobilized. The Environmental Consultant will perform a final visual inspection to ensure that no residue or debris remains. Should the Environmental Consultant identify any residue/debris, the abatement contractor shall clean-up the identified material.

FINAL INSPECTION

1. The NPS Environmental consultant (API) will perform a thorough inspection of each work area to ensure that asbestos containing materials have been removed.

WASTE

1. All waste generated from this project shall be removed, transported and disposed of in full accordance with all applicable regulations.

2. Disposal manifests shall be submitted to the Environmental Consultant for review.

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3. Waste manifests shall be returned to Independence National Historical Park attn.: Dawn Harrington when waste has been disposed at final destination.