NYC 9/11 Public Portal Document
LABORATORYANALYTICAL FORTESTING T) PROGRAM
ENVIRONMENTAL PROFICIENCY
INDIVIDUAL ROUND(022
LAS ID=07054 MARCH 18, 1998
ATC ASSOCIATES, INC. NY, NEW YORK, NY 10010
..-
REFERENCE ACCEPTABLE RANGE # L9.B B Z&
SAMPLE REPORTED
VALUES * LOWER UPPER PERFORMANCE SCORE
SAMPLE TYPE NO. RESULTS
_ --•---------------------------- -
1.4607 1.2043 1.7171 A -0.39
Paint Chips (X) 1 1.4275
-.5632 ;.6658
6 0.1008 A 0.66
2 40 394
5.5009 A -1.04
3 A
0.6247 0.6454 0.5264 0.7645
4
360.8 292.3 429.4 A -0.40
Soil ;mg/kg) 1 351.6
73.2 49.7 96.7 A 0.46
2 76.8 -0.69
3 799.3 834.5 682.5 986.5 A
649.9 683.2 560 806.3 A -0.81
4
565.9373 432.1 699.8 A -0.77
Dust Wipes (ug) 1 531.6 -0.47
128.9551 94.1 163.8 A
2 123.5
272.0263 198.9 345.2 A 0.02
3 272.6
895.2703 714.6 1076 A -0.53
4 863.1
reference laboratories
. • Reference value Is the mean of the deviations
reference value + 3 standard
# Upper limit: deviations
Lower limit: reference value - 3 standard
B A: Analysis acceptable; -: Results not reported
< lower limit, not acceptable
H: Results > upper limit, L: Results value)/standard deviation
(reported result-reference
& Z Score =
is based on z-scores.
Note: the acceptablity of reported results acceptable according to
This is why a reported result may appear
performance limits, but be identified as an outlier.
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LABORATORY YEAR-TO-DA,TE PERFORMANCE REPORT
LAB IO=07054
ACCUMULATED PERFORMANCE PROFICIENCY
ROUND ROUND *
PERFORMANCE 4 ROUNDS(%) 2 ROUNDS(%) RATING # -
SAMPLE TYPE NO.
Paint Chips (%) 019
020 4/4
021 4/4
4/4 .16/16 100 8/8 100 P
022
Soil (mg/kg) 020 4/4
021 4/4
4/4 12/12 100 8/8 100 P
022
019 4/4
Dust Wipes (ug)
020 4/4
021 4/4 P
4/4 16/16 100 8/8 100
022
number of total samples analyzed.
* The denominators represent the
The numerators represent the number of acceptable results.
NP: Nonproficient -: Not Rated
#P : Proficient
based on accumulated results over four rounds
Performance ratings are or dust
in ground paint chips, soil,
(one year). A lab's performance
three-fourths (75%) or more of the
wipes is rated proficient (P), if: 1)
or 2) for the last
accumulated results over four rounds are acceptable
samples are analyzed and the results are 100 % acceptable.
two rounds, all
NYC-WTC 000095603
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