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← Document results/DEP Box 48/345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083375 395 South End Ave, Building #600
Document / 288 pages

Chain of custody for bulk sampling at 395 South End

Machine-extracted title · confidence 95%

Document tracking environmental samples collected from Building #600 at 395 South End Avenue on January 2, 2002.

NYC-WTC_000121516–000121803

Folder label: “345 SOUTH END AVENUE Block: 16 Lot: 100 BIN: 1083375 395 South End Ave, Building #600

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NYC 9/11 Public Portal Document

TESTING (ELPAT) PROGRAM ENVIRONMENTAL LEAD PROFICIENCY ANALYTICAL INDIVIDUAL LABORATORY REPORT FOR ROUND 023 LAB 10=07054 JUNE 24, 1998 ATC ASSOCIATES INC. MY, NEW YORK, NY 10010

env ACCEPTABLE RANGE # LAB d Z ;.AMBLE REPORTED REFERENCE RESULTS VALUES * LO'JER UP°ER PERFORMANCE SCORE SAMPLE TYPE NO. ----------------------- 0.0375 0. 1266 0.0265 3.0467 A rr nt Chips (.) 1 1.8085 1.4203 2.1966 A 0.18 2 1.8316 0.4177 0.4251Z 0.3469 0.5042 '1 -0.30 3 1.0184 1.0131 0.8111 1.2152 0.D8 4

1421.6 1187.5 1655.6 A -0.37 Soil (mg/kg) 1 1392.7 e 7.4 36.9 77.9 A 0.59 2 61.4 %1E 9 168 269.7 A -0.35 3 213 460.1 388.2 532.2 A -0.03 4 459.4

1213.1348 99.4 158.9 A -1.70 Oust Wipes (ug) 1 112.3 271.547 210.4 332.7 A -1.08 2 249.5 59.0183 38.4 79.7 A -0.56 3 55.2 561.9713 438.3 685.7 A 0.17 4 5OY

reference Laboratories • Reference value is the mean of the standard deviations # Upper Limit: reference value • 3 standard deviations Lower limit: reference value - 3 acceptable; -: Results not reported u A: Analysis tower limit, not acceptable H: Results > upper limit, L: Results < ceviation result -reference value)/standard 8 Z Score = (reported results is based on z-scores. Note: the accepcablity of reported appear acceptable according to This is why a reported result may performance limits, but be identified as an out er.

LABORATORY YEAR-TO-GATE PERFORMANCE REPORT LAS ID-07054

ACZJMULATEO PERFORMANCE PROFICIENCY ROUND ROUND * PERFORMANCE 4 ROUNDS(X) 2 ROUNDS( ) RATING # SAMPLE TYPE NO.

020 4/4 Paint Chips (%.) 021 4/4 022 4/4 023 4/4 16/16 100 8/8 100 P

020 4/4 Soil (mg/kg) 021 4/4 022 4/4 4/4 16/16 100 8/8 100 P 023

020 4/4 Dust Wipes (ug) 021 4/4 022 4/4 4/4 16/16 100 8/8 100 P 023

total samples analyzed. • The denominators represent the number of acceptable results. The numerators represent the number of NP: Nonproficient -: Not Rated P Proficient ratings are based on accumulated results over four rounds Performance paint chips, soil, or dust (one year). A tab's performance in ground (757.) or more of the wipes is rated proficient (P), if: 1) three-fourths or 2) for the last accumulated results over four rounds are acceptable samples are analyzed and the results are 100 t, acceptable. two rounds, all

NYC-WTC 000121736

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NYC-WTC_000121736Source: NYC Law Department, mirrored locally

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