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← Document results/DEP Box 02/345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083378
Document / 123 pages

Chain of custody for environmental assessment, Nov 2001

Machine-extracted title · confidence 90%

Chain of custody form documenting bulk sampling and air monitoring at 375 South End Avenue on November 17, 2001.

NYC-WTC_000095331–000095453

Folder label: “345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083378

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NYC 9/11 Public Portal Document

TESTING (ELPAT) PROGRAM ENVIRONMENTAL LEAD PROFICIENCY ANALYTICAL 024 INDIVIDUAL LABORATORY REPORT FOR ROUND JQ707054 SEPTEMBER 23, 1998 LAB NY 10010 ATC AS60CrATES INC., NEW YORK, 'Wr

REFERENCE ACCEPTABLE RANGE # LAB a Z 8 SAMPLE REPORTED RESULTS VALUES • LOWER UPPER PERFORMANCE SCORE SAMPLE TYPE NO. ---------•- ------------------------------=- -------------- -----

0.7432 0.5812 0.9052 A 0.6582 Paint Chips (X) 1 A - 1.77 1.57 0-1752 0.2127 0.1492 0.2762 0.0524 n,n3?7 0,?672 A -0.29 3 0.051 3.3834 2.6436 4.1232 A -0.58 4 3.24 1 3

440.6 354 527.2 A -1.38 Soi l (mg/kg) 1 400-7 686.3 545.3 827.4 A -1.28 626.1 820.9 651.2 990.5 A -1 .91 3 713.1 34.2 13.1 55.3 A 0.81 39.9

57.8355 37.5 78.2 A 0.02 Oust 'apes (ug) 1 58 1127.0581 884 1370.2 A -0.98 2 1047.3 128.3887 93.4 163.4 A -0.11 3 127. 1 401.8589 326 477.8 A -1.86 4 354.8

reference laboratori-es • Reference value is the mean of the reference value + 3 standard deviations # Upper limit: deviations Lower limit: reference value - 3 standard Results not reported a A: Analysis acceptable; < lower limit, not acceptable H: Results > upper limit, L: Results (reported result -reference value)/standard deviation & Z Score = results is based on z -scores. Note: the acceptablity of reported appear acceptable according to This is why a reported result may ier. performance l imits, but be identified as an outl

LABORATORY YEAR-TO-DATE PERFORMANCE REPORT LA8 ID=07054 PROFICIENCY ROUND ROUND * ACCUMULATED PERFORMANCE PERFORMANCE 4 ROUNDS(%) 2 ROUNDS(,.) RATING # SAMPLE TYPE NO. y ---------------

021 4/4 Paint Chips (7) 022 4/4 023 4/4 16/16 100 8/8 100 P 024 4/4

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

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

number of total samples analyzed. The denominators represent the numerators represent the number of acceptable results. The NP: Nonproficient Not Rated P : Proficient -:

based on accumulated results over four rounds Performance ratings e; paint chips, soi l , or dust (one year). A lab's er-ormance in ground three-fourths (757.) or more of the wipes is rated profict nt (P), if: 1) accumulated results over four rounds are acceptable or 2) for the last analyzed and the results are 100 Y. acceptable. two rounds, all samples are

NYC-WTC 000095443

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NYC-WTC_000095443Source: NYC Law Department, mirrored locally

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NYC-WTC_000121462 · Box DEP Box 48

Record documenting the transfer and custody of air samples from Building #500 at 385 South End Avenue collected on October 22, 2001.

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