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EPA review letter, 133-135 Greenwich Street

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US EPA Region 2 letter dated November 15, 2005, confirming completion of environmental review for abatement plans at 133-135 Greenwich Street.

NYC-WTC_000134132–000134414
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NYC 9/11 Public Portal Document

Part II - Environmental Community Monitoring Plan 133-135 Greenwich & 21-23 Thames Streets Airtek Project 05-0701— Rev 2 September 16, 2005

Airtek Prolect Manager Generates and prints shipping documents for samples being sent to commercial analytical laboratories. Transports samples to Contract Laboratory; arranges with offsite laboratories for courier pickup; or arranges with Airtek Clerical Personnel for offsite shipment of samples.

Signs and records date and time on Chain-of-Custody Form under "Relinquished by." Relinquishes samples and Chain-of-Custody Form to the analytical laboratory representative or Shipping Department for common carrier. Commercial lab representative Accepts samples and Chain-of-Custody Form; signs and records date and time on form under "Received by." Completes analysis of samples. Delivers sample results to Airtek Staff via electronic transfer or diskette to Data Manager and hard copy to Quality Coordinator. 2.4.3 Receipt of analytical results

Airtek Data Manager Receives electronic data deliverables from analytical laboratories. Loads data into database (electronically or manually). Performs validation checks for timeliness, completeness and correctness on electronic results, after resolving or documenting all validation problems, passes electronic results to Sample Team Leads by advancing the data state to "Wait Authenticate." Airtek Ouality Coordinator Receives hard copy results reports from analytical laboratories. Reviews hard copy results for timeliness and completeness. Passes results to appropriate Sample Team Leads, if requested.

2.5. Quality Control

2.5.1 Airtek Data Manager

Performs validation checks for timeliness, completeness and correctness for all electronic data.

Reviews Quality Assurance Quality Control (QA/QC) measures such as percent recoveries, duplicate analyses and laboratory blanks reported in the data entered into the database.

2.5.2 Airtek Quality Coordinator/QA Manager

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NYC-WTC 000134253

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NYC-WTC_000134253Source: NYC Law Department, mirrored locally

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