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Addendum #2 on bulk dust sampling procedures for WTC project,

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Specific instructions for collecting bulk dust samples, labeling containers, and repairing insulation disturbed during sampling activities.

NYC-WTC_000140385–000140398

Folder label: “SCOPES OF WORK IN DOOR AIR & CLEANING

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NYC 9/11 Public Portal Document

17. The residence will be recleaned and retested if the clean-up criteria of 0.0009 fibers/cc (PCME measured by TEM) is not achieved or if determined necessary by EPA. This clean-up criterion may be reevaluated and revised, if determined necessary based on field conditions and analytical limitations.

18. The Project Monitor will conduct a post-cleaning inspection of the residence with the resident at the completion of the sampling. The resident should inspect the residence and identify any damage at this time and sign-off on the Project Completion Form. Any damage or loss to a residence or its contents shall be documented on this form.

Deliverables

The Project Monitor shall submit upon request to the EPA copies of the field notebook as requested via fax or alternative format agreed upon and within two days of request. Final air sampling shall be performed with 24 hours of final visual inspection. The Project Monitor shall ensure that the Project Completion Form is completed for each residence cleaned or sampled.

19. The Project Monitor will complete a daily report which documents site observations, cleaning starts, continuations, completions, air sampling, recleaning and any delays or difficulties encountered.

Deliverables

The Project Monitor shall enter appropriate data from the completed Project Completion Form into the EPA Indoor Air web database or an agreed upon alternative electronic format or website approved by EPA within 24 hours of activity.

20. EPA will notify residents of the results of sampling conducted as part of this project. No other party is authorized to release residential or common area sampling results.

21. Any damage to or loss of private property that occurs during sampling or is caused by the Monitoring Contractor or its employees while engaged in activities covered by this scope of work is the responsibility of the Monitoring Contractor. The Monitoring Contractor is not responsible for damage or loss caused by the acts of third parties not involved in activities covered by this scope of work.

22. Copies of all reports, Cleaning Checklist, Inspection Checklists, Project Completion Forms and chain-of-custody forms shall be submitted daily to the EPA .

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NYC-WTC_000140398Source: NYC Law Department, mirrored locally

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