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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
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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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NYC 9/11 Public Portal Document

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

REFERENCE ACCEPTABLE RANGE # LAB iu 2 & SAMPLE REPORTED VALUES " LOWER UP°ER PERFORMANCE SCORE SAMPLE TYPE NO. RESULTS ---------------------- O.ni3h6 0.0265 0.0467 A 2~ :'r:nt Chips (n) 1 0.0375 1.5085 1.4203 2.1966 A 0.18 2 1 .8316 i 0.42:; 0.3469 0.5042 t -0-30 0.4177 1.0184 1.0131 0.8111 1.2152 0.08 4

1421 .6 1157.5 1655.6 A -0.37 Soi l (mg/kg) 1 1392.7 47.' 36.9 77.9 A 0.59 2 61.4 ::1P. 9 168 269.7 A -0.35 3 213 459.4 46(.2 388.2 532.2 A -0.03 4

125.1348 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 4 365'

reference laboratories • Reference value is the mean of the reference value + 3 standard deviations Upper limit: Lower limit: reference value 3 standard deviations Results not reported A: Analysis acceptable; H: Results > upper limit, L: Results < lower limit, not acceptable (reported result -reference value)/standard deviation 8 2 Score = of reported results is based on z -scores. Note: the acceptabiity appear acceptable according to This is why a reported result may outl ier. performance l imits, but be identified as an

LABORATORY YEAR-TO-OATE PERFORMANCE REPORT LA8 ID=07054

ROUND * ACCUMULATED PERFORMANCE PROFICIENCY ROUND PERFORMANCE 4 ROUNDS(%) 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 Oust wipes (ug) 021 4/4 022 4/4 4/4 16/16 100 8/8 100 P 023

of total samples analyzed. • The denominators represent the number numerators represent the nsnoer of acceptable results. The NP: Nonproficient -: Not Rated 9 P : Proficient over four rounds Performance ratings are based on accumulated results paint chips, soi l, or dust (one year). A lab's performance in ground rated proficient (P), if: 1) three-fourths (757.) or more of the wipes is over four rounds are acceptable or 2) For the last accumulated results analyzed and the results are 100 Y. acceptable. two rounds, all samples are

NYC-WTC 000121035

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NYC-WTC_000121035Source: 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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