Chain of custody for bulk sampling at 365 South End

NYC 9/11 Public Portal Document

ANAL'TICAL TESTING (ELPAT) PROGRAM ENVIRONMENTAL LEAD PROFICIENC7 INDIVIDUAL LABORATORY REPORT FOR ROUND 024 SEPTEMBER 23, 1998 LAS 207054 1 NEW YORK, NY 10010 ATC A DC.+ATE! INC.,

REFERENCE ACCEPTABLE RANGE x LAS d za SAMPLE REPORTED NO RESULTS VALUES • LOWER UPPER PERFORMANCE SCORE SAMPLE TYPE ........................•. ~- _~'.... - 2 A S7 1 o.6saz o.743z o.5a12 n - c int 0.2762 } • 1''7 • "!• 0. 1752 0.2127 0.1492 . ji.' 0n 0 7 2 A 3.29 3 O.G51 0.0524 7.58 3.2413 3-383x. 2.6436 _. 123c

626.7 410.6 354 527.2 A -1.38 Soli (ma/kg) 827.4 ^ 1.L5 626. 1 696.3 545.3 A 91 z 820.9 651 .2 990.5 713. 1 0.81 '3. 55 .3 A 39.9

ca 7.9355 37.5 78.2 y 0.02 ,us: des :~9% . 13%0. .. 3.48 04:.3 •127.0581 384 y 0 . 11 2~ :28.3887 93.4 '63.- 326 _77.3 A .36 354.8 401 .3589

or the reference taoorator +es • • Reference value is the mean 3 standard deviations uccer limit: reference value • limit: reference value - 3 standard deviations Lower acre?table; : Results not redorted A: Analysis udder limit, L: Results < lower limit, not ac:eo'taote H. Results > value)/standard oev'acion g 2 Score = (reported result -reference results is based on z -scores. resorted Note: the acceotaO(ity of according result may aooear accedtadle This is why a retorted as an nutt ier-- - _ --- performance l imits, but be identified

REPORT LABORATORT TEAR-TO-0A1E PERFORMANCE LAB I0=07054 PERFORMANCE PROFIC:ENCY ROUND • ACC'JMULATED ROUND RATING - PERFORMANCE 4 ROUNDS(:) 2 ROUNDS(:) NO. SAMPLE TYPE ...................... -..._.- y 4/4 • Paint Clips 1%) 021 4/4 022 023 4/4 16/16 100 8/8 100 024 4/4

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

021 4/4 Oust wipes (ug) 4/4 022 023 4/4 p 16/16 100 8/8 100 024 4/4

analyzed. the number of total saddles • The denominators re?resent accepcaole results. the nLmner of The numerator; reeresenC Nat Rated NP: Noncroficient P : Proficient muiated results over four rounds -based ace, on act Performance ratings or oust iormancmf in ground apaint chips`%)oi l , (one year). A iac'5fc nt; or Rore the l ) vices is rated proficient (P,, acteptao(e or 2) for the last are accunulaced results over four rounds acceOtadte. analyzed and the results are 100 Ii two rounds, all samoies are

NYC-WTC 000119900