The order the City kept.

NYC-WTC_000062413

Environmental Protection Department analysis record for the World Trade Center site dated October 2001.

NYC-WTC_000062414 – NYC-WTC_000062417

Single-page document containing only a unique identification number for records related to the World Trade Center site analysis.

NYC-WTC_000062418 – NYC-WTC_000062430

Technical form recording extraction parameters and quality control metrics for environmental sample processing in October 2001.

NYC-WTC_000062431 – NYC-WTC_000062434

Record of a system suitability test using DFTPP to verify instrument performance prior to pesticide analysis on October 10, 2001.

NYC-WTC_000062435 – NYC-WTC_000062438

Analytical data for calibration standards including various pesticides and phthalates used to validate laboratory equipment on October 10, 2001.

NYC-WTC_000062439 – NYC-WTC_000062443

Quality control report for a laboratory blank run to detect contamination during the pesticide analysis process on October 4-10, 2001.

NYC-WTC_000062444 – NYC-WTC_000062448

Data sheet verifying method detection limits for pesticides and related compounds during laboratory analysis in October 2001.

NYC-WTC_000062449 – NYC-WTC_000062453

Analytical measurements of reference standards used to calibrate instruments for pesticide testing on October 4-10, 2001.

NYC-WTC_000062454 – NYC-WTC_000062458

Laboratory report detailing analytical results for multiple pesticides and related compounds in sample AD23343, with most below detection limits.

NYC-WTC_000062459 – NYC-WTC_000062463

Laboratory report detailing analytical results for multiple pesticides and related compounds in sample AD23344, with most below detection limits.

NYC-WTC_000062464 – NYC-WTC_000062468

Laboratory report listing analytical results for pesticides and surrogate compounds in sample AD23345, with most values below detection limits.

NYC-WTC_000062469 – NYC-WTC_000062473

Laboratory report listing analytical results for pesticides and related compounds in sample AD23359, with most values below detection limits.

NYC-WTC_000062474 – NYC-WTC_000062478

Laboratory report listing analytical results for pesticides and related compounds in sample AD23471, with most values below detection limits.

NYC-WTC_000062479 – NYC-WTC_000062483

Laboratory report listing analytical results for pesticides and related compounds in sample AD23472, with most values below detection limits.

NYC-WTC_000062484 – NYC-WTC_000062489

Laboratory report listing analytical results for pesticides and related compounds in sample AD23473, with most values below detection limits.