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← Document results/DEP Box 48/345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083377 345 South End Avenue, Building #100
Document / 51 pages

Chain of custody for air monitoring at 345 South End

Machine-extracted title · confidence 95%

Record documenting the transfer and custody of air samples from Building #100 at 345 South End Avenue collected on October 22, 2001.

NYC-WTC_000120991–000121041

Folder label: “345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083377 345 South End Avenue, Building #100

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Scanned page image, NYC-WTC_000121034
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NYC 9/11 Public Portal Document

TESTING (ELPAT) PROGRAM ENVIRONMENTAL LEAD PROFICIENCY ANALYTICAL INDIVIDUAL LABORATORY REPORT FOR ROUND 024 LAB =07054 SEPTEMBER 23, 1998 NT 10010 ATC A; OC ATES INC_ NEW YORK,

REFERENCE ACCEPTABLE RANGE # LAB & Z & SAMPLE REPORTED SAMPLE TYPE N0. RESUL TS VALUES * LOWER UPPER ------------- PERFORMANCE SCORE ---------------------- 0.7432 0.5812 0. 1u52 A 1.57 Ch' s (X) 1 0.6582 aint 0.1492 0.2762 A -1.77 2 0.1752 0.2127 0.0524 0 5f' 0,^•£72 A -0.29 3 0.651 4 3.2413 3.3834 2.6436 4.1231 A -0.58

400.7 440.6 354 527.2 A -1.38 Soil (mg/kg) 545.3 827.4 A -1.28 626. 1 686.3 3 713.1 820.9 651.2 990.5 A -1.91 39.9 34.2 13. 1 55.3 A 0.81

58 57.8355 37.5 78.2 A 0.02 Dust wipes (ug) 884 1370.2 A -0.98 2 1047.3 1127.0581 128.3887 93.4 163.4 A -0. 11 3 127. 1 401.8589 326 477.8 A -1.86 4 354.8

reference taboratori.es * Reference value is the mean of the standard deviations # Upper limit: reference value + 3 deviations Lower limit: reference value - 3 standard acceptable; Results not reported a A: Analysis -:

lower limit, not acceptable H: Results > upper limit, L: Results < -reference value)/standard deviation & 2 Score = (reported result results is based on z-scores. Note: the acceptablity of reported appear acceptable according to This is why a reported result may performance , but be identified as an outt ier.

LABORATORY YEAR-TO-DATE PERFORMANCE REPORT LAB I0=07054

ACCUMULATED PERFORMANCE PROFICIENCY ROUND ROUND * PERFORMANCE 4 ROUNDS(.) 2 ROUNDS(%) RATING # SAMPLE TYPE N0. • Paint Chips (7.) 021 4/4 022 4/4 023 4/4 4/4 16/16 100 8/8 100 P 024

021 4/4 Sail (mg/kg) 022 4/4 023 4/4 4/4 16/16 100 8/8 100 P 024

021 4/4 Dust Wipes (ug) 022 4/4 023 4/4 4/4 16/16 100 8/8 100 P 024

of total samples analyzed. • The denominators represent the number represent the number of acceptable results. The numerators NP: Nonproficient •: Not Rated a P : Proficient over four rounds Performance ratings ae7based an accumulated results paint chips, soil, or dust (one year). A lab's er ormance in ground nt (P), if: 1) three -fourths (75%) or more of the wipes is rated profici or 2) for the last accumulated results aver four rounds are acceptable rounds, all samples are analyzed and the results are 100 " acceptable. two

NYC-WTC 000121034

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NYC-WTC_000121034Source: NYC Law Department, mirrored locally

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NYC-WTC_000120940 · Box DEP Box 48

Document tracking environmental samples collected from Building #100 at 345 South End Avenue on October 22, 2001.

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