The order the City kept.

NYC-WTC_000061281

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

NYC-WTC_000061282 – NYC-WTC_000061286

Single page fragment from DEP Box 58 containing partial text and identification codes related to environmental testing records.

NYC-WTC_000061287 – NYC-WTC_000061298

Document outlining laboratory methods and parameters for sample analysis, likely related to DEP environmental testing protocols.

NYC-WTC_000061299 – NYC-WTC_000061304

Laboratory report documenting GCMS analysis of sample AD22543 for pesticide compounds conducted on September 22-25, 2001.

NYC-WTC_000061305 – NYC-WTC_000061309

Laboratory report showing calibration standards and quantification of various pesticides including atrazine and alachlor from September 2001.

NYC-WTC_000061310 – NYC-WTC_000061324

Laboratory report detailing GCMS analysis of sample AD22543 for pesticides and related compounds conducted in September 2001.

NYC-WTC_000061325 – NYC-WTC_000061331

Laboratory report detailing GCMS analysis of sample AD22543 for pesticides and related compounds conducted in September 2001.

NYC-WTC_000061332 – NYC-WTC_000061344

Document containing laboratory data entries for pH, flow rates, and other parameters associated with DEP environmental testing procedures.

NYC-WTC_000061345 – NYC-WTC_000061349

Laboratory report documenting GCMS analysis of sample AD22544 for pesticide compounds conducted on September 24-28, 2001.

NYC-WTC_000061350 – NYC-WTC_000061362

Laboratory report showing quantification of various pesticides including atrazine and alachlor from sample AD22544 in September 2001.

NYC-WTC_000061363 – NYC-WTC_000061366

Laboratory report showing calibration standards and quantification of various pesticides including atrazine and alachlor from September 2001.

NYC-WTC_000061367 – NYC-WTC_000061374

Laboratory report documenting GCMS analysis of a laboratory blank sample to check for contamination during September 2001 testing.

NYC-WTC_000061375 – NYC-WTC_000061379

DEP lab analysis of sample AD22544 for organic chemicals including pesticides, phthalates, and DDEs using method 525.2, completed September 24, 2001.

NYC-WTC_000061380 – NYC-WTC_000061384

Laboratory report listing analytical results for organic chemicals including atrazine and simazine from September 2001.

NYC-WTC_000061385 – NYC-WTC_000061389

Laboratory report listing analytical results for organic chemicals including alachlor and benzo(a)pyrene from September 2001.

NYC-WTC_000061390 – NYC-WTC_000061394

Laboratory report listing analytical results for organic chemicals including terbacil and metolachlor from September 2001.

NYC-WTC_000062686

Generic administrative record associated with World Trade Center environmental sampling activities from late September to October 2001.

NYC-WTC_000062687 – NYC-WTC_000062692

Page from a laboratory extraction log for sample AD23341 showing parameters like drip rate and pH on September 25, 2001.

NYC-WTC_000062693 – NYC-WTC_000062702

Chemical analysis report for sample AD22491 showing detection limits and concentrations from September 2001.

NYC-WTC_000062703 – NYC-WTC_000062708

Laboratory blank analysis report for sample AD22491 showing detection limits and concentrations from September 2001.

NYC-WTC_000062709 – NYC-WTC_000062721

Quality control document showing DFTPP instrument calibration passed for analysis of sample AD22491 on September 21, 2001.

NYC-WTC_000062722 – NYC-WTC_000062729

Laboratory reference standard analysis report for sample AD22491 detailing chemical concentrations measured in September 2001.

NYC-WTC_000062730 – NYC-WTC_000062734

Document containing quantitative analytical results for multiple organic compounds in sample AD22491 from September 2001.

NYC-WTC_000062735 – NYC-WTC_000062739

Document listing analytical findings including compounds below detection limits for sample AD22492 analyzed in September 2001.

NYC-WTC_000062740 – NYC-WTC_000062744

Document presenting analytical data for organic compounds in sample AD22493, analyzed between September 19 and 21, 2001.

NYC-WTC_000062745 – NYC-WTC_000062749

Document listing quantitative results for organic contaminants in sample AD22494 analyzed by the DEP laboratory in September 2001.

NYC-WTC_000062750 – NYC-WTC_000062754

Document containing analytical data for organic compounds in sample AD22495, with many results below detection limits.

NYC-WTC_000062755 – NYC-WTC_000062759

Document showing analytical results for organic compounds in sample AD22496 analyzed by the DEP laboratory in September 2001.

NYC-WTC_000062760 – NYC-WTC_000062765

Sample submission form for Environmental Services Laboratories and Research, dated September 2001.

NYC-WTC_000062887

Document containing identification data for a World Trade Center environmental sample from late September or early October 2001.

NYC-WTC_000062888 – NYC-WTC_000062893

Technical method sheet detailing extraction parameters and calibration checks for DEP laboratory analysis.

NYC-WTC_000062894 – NYC-WTC_000062906

Document showing method performance check results for sample AD22166 on September 15, 2001.

NYC-WTC_000062907 – NYC-WTC_000062970

Document showing calibration standard analysis results for organic compounds in sample AD22166 on September 15, 2001.

NYC-WTC_000062971 – NYC-WTC_000062974

Document showing laboratory blank analysis results for organic compounds in sample AD22166 on September 15, 2001.

NYC-WTC_000062975 – NYC-WTC_000062979

Document showing method detection limit verification results for organic compounds in sample AD22166 on September 15, 2001.

NYC-WTC_000062980 – NYC-WTC_000062984

Lab report documenting method detection limit verification for sample AD22166 using Method 525.2 from September 12-15, 2001.

NYC-WTC_000062985 – NYC-WTC_000062989

Lab report showing analysis of reference standards for Method 525.2 conducted on September 12-15, 2001.

NYC-WTC_000062990 – NYC-WTC_000062994

Lab report listing analytical results for pesticides and organic compounds in sample AD22167 tested on September 12-15, 2001.

NYC-WTC_000062995 – NYC-WTC_000063000

Lab report listing analytical results for pesticides and organic compounds in sample AD22168 tested on September 12-15, 2001.

NYC-WTC_000063001 – NYC-WTC_000063005

Lab report listing analytical results for pesticides and organic compounds in sample AD22169 tested on September 12-15, 2001.

NYC-WTC_000063006 – NYC-WTC_000063011

Lab report listing analytical results for pesticides and organic compounds in sample AD22170 tested on September 12-15, 2001.

NYC-WTC_000063012 – NYC-WTC_000063017

Lab report listing analytical results for pesticides and organic compounds in sample AD22171 tested on September 12-15, 2001.

NYC-WTC_000063018 – NYC-WTC_000063023

Chain of custody form for submitting environmental samples to a Westchester County laboratory facility.