NYC 9/11 Public Portal Document
LABORATORYANALYTICAL FORTESTING AT? PROGRAM
ENVIRONMENTAL PROFICIENCY
ROUNDf024
INDIVIDUAL
LAB 1.p=07054 SEPTEMBER 23, 1998
ATC A OC.ATES INC., NEW YORK, NY 10010
iJM
ACCEPTABLE RANGE # LAB d Z &
SAMPLE REPORTED REFERENCE
VALUES • LOWER UPPER PERFORMANCE SCORE
NO. RESULTS
SAMPLE TYPE
1 ...
0.?432 0.5812
------------------------
---u52 A -1.57
0.6582
0.2127 0.1492 0.2762 A 1.77
n.1752
0,0524 nji?7 0.'672 A -0.29
3 0.051
3.3834 2.6436 4.1234 A •0.58
4 3.2413
440.6 354 527.2 A -1.38
' 400.7
Soi l (mg/kg) 545.3 827.4 A -1.28
626.1 636.3
820.9 651.2 990.5 A -1.91
3 713,1
34.2 13. 1 55,3 A 0.81
39.9
57.8355 37.5 78.2 A 0.02
Dust wipes fug) 58
1127.0581 884 1370.2 A -0.98
2 1041.3
128.3887 93.4 163.4 A -0.11
3 127. 1
401 .3589 326 477.8 A - 1 .86
4 354.8
laboratories
Reference value is the mean of the reference
reference value * 3 standard deviations
# Upper limit: deviations
Lower limit: reference value - 3 standard
a A: Analysis acceptable; : Results not reported
Results < lower limit, not acceptable
H: Results > upper limit, L:
Score = (reported result -reference value)/standard deviation
& Z
results is based on z-scores.
Note: the acceotablity of reported
appear acceptable according to
This is why a reported result may
performance l imits, but be identified as an outl ier,
LABORATORY YEAR-TO-DATE PERFORMANCE REPORT
LAB ID=07054
ACCUMULATED PERFORMANCE PROFICIENCY
ROUND ROUND *
-RFORMANCE --4 ,
-ROUNDS(- ) 2 ROUNDS(:) RATING #
SAMPLE TYPE NO. P-c-
-------- - --------`-------------------------------
• --------- ------
Paint Chips (X) 021 4/4
022 4/4
023 4/4
4/4 16/16 100 8/8 100 P
024
021 4/4
Soil (mg/kg)
022 4/4
023 4/4
4/4 16/16 100 8/8 100 P
024
021 4/4
Dust wipes (ug)
022 4/4
023 4/4
4/4 16/16 100 8/8 100 P
024
number of total samples analyzed.
The denominators represent the
the number of acceptable results.
The numerators represent Not Rated
# P : Proficient NP: Nonproficient -:
results over four rounds
Performance ratings ce,-based on accumulated
ground paint chips, soi l , or dust
(one year). A lab's er ormance in
if: 1) three-fourths (75%) or more of the
wipes is rated profici nt (P),
acceptabie or 2) for the last
accumulated results over four rounds are
all samples are analyzed and the results are 100 ii acceptable.
two rounds,
NYC-WTC 000119943
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