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
ATC ASSOCIATES INC. NY, NEW YORK, NY 10010
_~
REPORTED REFERENCE ACCEPTABLE RANGE # LAB a Z &
SAMPLE
RESULTS VALUES • LOWER UPPER PERFORMANCE SCORE
SAMPLE TYPE NO.
-----------------------------------'
7C
Chips ,,)
-•r - nt Chips 1 0.0375 0.1x366 0.0265 0.C467
2.1966
A
a 0.18
2 1 .8316 1.8085 1.4203
3 0.4177 0.425 0.3469 0.5042 -0.30
4 1 .0184 1.0131 0.8111 1.2152 0.08
1392.7 1421 .6 1187.5 1655.6 A -0.37
Soi l (mg/kg) 1
2 61.4 57.4 36.9 77.9 A 0.59
3 213 718 9 168 269.7 A -0.35
4 459.4 460.1 388.2 532.2 A -0.03
112.3 125. 1348 99.4 158.9 A - 1 .70
Dust wipes (ug) 1
249.5 71.547 210.4 332.7 A - 1 .08
2
59.0183 38.4 79.7 A -0.56
3 55.2
561.9713 438.3 685.7 A 0.17
• 4 56Y
reference laboratories
• Reference value is the mean of the
reference value + 3 standard deviations
# Upper l imit:
deviations
Lower l imit: reference value - 3 standard
m A: Analysis acceptable; -: Results not reported
lower limit, not acceptable
H: Results > ucper Limit, L: Results <
(reported result -reference value)/standard deviation
S Z Score =
results is based on z-scores.
Note: the acceptablity of reported
acceptable according to
This is why a reported result may appear
outlier.
performance l imits, but be identified as an
LABORATORY YEAR-TO-DATE PERFORMANCE REPORT
LAB I0=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
Soi l (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
samples analyzed.
• The denominators represent the number of total
acceptable results.
The numerators represent the number of
NP: Nonproficient : Not Rated
g P : Proficient
four rounds
Performance ratings are based on accumulated results over
chips, soi l , or dust
(one year). A lab's performance in ground paint
(75%) or more of the
wipes is rated proficient (P), if: 1) three -fourths
last
accumulated results over four rounds are acceptable or 2) for the
results are 100 acceptable.
two rounds. al l sarmples are analyzed and the
NYC-WTC 000095473
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