The order the City kept.

NYC-WTC_000029144

Department of Environmental Protection laboratory record from late October to early November 2001 regarding sample tracking.

NYC-WTC_000029145 – NYC-WTC_000029151

Document header page from DEP Box 20 containing identification codes for environmental samples collected at the World Trade Center site.

NYC-WTC_000029152 – NYC-WTC_000029178

Gas chromatography-mass spectrometry analysis results for sample AD25041 including DDT and Endrin data from November 2001.

NYC-WTC_000029179 – NYC-WTC_000029194

Laboratory report for a method blank (sample AD25041) used to verify analytical procedures at the DEP laboratory.

NYC-WTC_000029195 – NYC-WTC_000029198

Laboratory report for a calibration standard (sample AD25041) used to verify instrument accuracy at the DEP laboratory.

NYC-WTC_000029199 – NYC-WTC_000029203

Laboratory report for a method detection limit check (sample AD25041) used to verify analytical sensitivity at the DEP laboratory.

NYC-WTC_000029204 – NYC-WTC_000029208

Laboratory report for a reference standard (sample AD25041) used to verify analytical accuracy at the DEP laboratory.

NYC-WTC_000029209 – NYC-WTC_000029213

Laboratory report listing analytical results for pesticides in sample AD25041 from 525 X.

NYC-WTC_000029214 – NYC-WTC_000029218

Laboratory report for a spiked sample (sample AD25041) used to verify recovery rates at the DEP laboratory.

NYC-WTC_000029219 – NYC-WTC_000029223

Laboratory report for a duplicate spiked sample (sample AD25041) used to verify precision at the DEP laboratory.

NYC-WTC_000029224 – NYC-WTC_000029228

Laboratory report listing analytical results for pesticides in sample AD25039 from 525 X.

NYC-WTC_000029229 – NYC-WTC_000029233

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25040 from 525 X.

NYC-WTC_000029234 – NYC-WTC_000029238

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25042 from 525 X.

NYC-WTC_000029239 – NYC-WTC_000029243

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25043 from 525 X.

NYC-WTC_000029244 – NYC-WTC_000029248

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25044 from 525 X.

NYC-WTC_000029249 – NYC-WTC_000029253

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25045 from 525 X.

NYC-WTC_000029254 – NYC-WTC_000029258

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25047 from 525 X.

NYC-WTC_000029259 – NYC-WTC_000029263

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25048 from 525 X.

NYC-WTC_000029264 – NYC-WTC_000029268

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25049 from 525 X.

NYC-WTC_000029269 – NYC-WTC_000029273

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25050 from 525 X.

NYC-WTC_000029274 – NYC-WTC_000029278

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25051 from 525 X.

NYC-WTC_000029279 – NYC-WTC_000029283

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25052 from 525 X.

NYC-WTC_000029284 – NYC-WTC_000029288

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25072 from 525 X.

NYC-WTC_000029289 – NYC-WTC_000029293

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25154 from 525 X.

NYC-WTC_000029294 – NYC-WTC_000029300

Laboratory report listing analytical results for pesticides and organic compounds in water sample AD25155 from 525 X.