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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