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← Document results/DEP Box 20/525 X 11/14, 11/19, 12/7, 12/17 A 12/1/01 12/3/01 12/18/01 12/19/01
Document / 12 pages

WTC environmental monitoring log, Nov-Dec 2001

Machine-extracted title · confidence 85%

Log sheet documenting environmental monitoring activities at the World Trade Center site during November and December 2001.

NYC-WTC_000030246–000030257

Folder label: “525 X 11/14, 11/19, 12/7, 12/17 A 12/1/01 12/3/01 12/18/01 12/19/01”

Page image
Scanned page image, NYC-WTC_000030248
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

Method s2S Date Extracted /2/2/6L Page

Lab# Description Sample Drip rate Sun- Spk is Final. T.V. pH Count &er+ SE • vol/wt ml/min add add add vol. pos. 22 22396/ 0o$ • l-01 lol eJ.— / 3

-221 22112 93-7 7 6 221/3 9 221/1 ie 4__ 2 1120 iL 10 22/6 22a), it 2212 44ln/ w 17 v/ /2

! 4i ? i

h |i ! | Remarks

Re- 5, ■I

5 | drip rate must be between 5-15 ml/min for liq-liq extractors drip rate - Extraction type - Soiv.lot# NaCI lot# Na2S04 lot#V ST {jO O STANDARD INT STD LOG# CALIBRATION REF/SPIKE MDL/MDRF Q. CHECK 20839/383939838 |

INT. STD. SURROGATE 2084 ax LPC ENDRIN/DDT

Analyst 2x 2a Reviewed by revision 4/12/01 Verified by Date

NYC-WTC_000030248

OCR can misread numbers and units. Confirm readings against the page image before using them.

NYC-WTC_000030248Source: NYC Law Department, mirrored locally

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Sample preparation log, Nov 2001 · Box DEP Box 20

NYC-WTC_000029801

Log sheet recording sample preparation parameters including drip rates, pH, and final volumes for laboratory analysis conducted in November 2001.

1 shared topics · Same agency, volume and box · similarity 0.981

machine-extracted · confidence unavailable · Check page ↗
Document label fragment, Oct 2001 · Box DEP Box 20

NYC-WTC_000028203

Fragmented document header or label containing partial text and identifiers from the NYC WTC environmental records collection dated October 2001.

1 shared topics · Same agency, volume and box · similarity 0.981

machine-extracted · confidence unavailable · Check page ↗

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