NYC 9/11 Public Portal Document
TESTING (ELPAT) PROGRAM
ENVIRONMENTAL LEAD PROFICIENCY ANALYTICAL
INDIVIDUAL LABORATORY REPORT FOR ROUND 021 ~;•._
LAB ID=07054 DECEMBER 16, 1997
ATC ASSOCIATES, INC. NY, NE'! YORK, MY 10010
+Tea ACCEPTABLI: RANGE : LAB G Z&
SAMPLE REPORTED REFERENCE
VALUES • LOWER UP?FR PERFORMANCE SCORE
SAMPLE TYPE NO. RESULTS
5, 6- A
.864 0.39
1 3 1.05Th
Paint Cnips (X)' 2 0.0328
0 0.0575 a 0.17
0.0459 0.0458
6.6414 4.5218 8.7609 1.58
3 7.756
0.5141 0.395 0.6332 A -0.36
4 0.4999
463.5 387.3 539.7 A -0.15
Soi l (mg/kg) 1 459.6
830.8 675.6 985.9 A 0.31
2 846.9
69.2 46.5 91.8 A 1.28
3 78.8
347.2 262.E 432.3 A -0.17
4 342.4
269.5319 198.4 340.7 A 0.03
1 270.3
Oust Wipes (ug) 111.5 207.5 A 0.27
2 163.8 159.5374
53.9 .C4.f A 0.16
3 80.6 79.2462
735.3033 502.8 V_. e A . 64
4 704.9
reference Laboratories
* Reference value is the mean of the
Upper Limit: reference value + 3 standard deviations
# deviations
Lower Limit: reference value - 3 standard
acceptable; -: Results not reported
a A: Analysis
Results < tower Limit, not acceptable
H: Results > upper Limit, L: value)/standard deviation
-reference
& Z Score = (reported result
the acceptablity of reported results is based on z-scores.
Note:
appear acceptable according to
This is why a reported result may
performance limits, but be identified as an outlier.
R
LABORATORY YEAR-TO-DATE PERFORMANCE REPORT
LAS 1D=07054
ACCUMULATED PERFORMANCE PROFICIERCY
ROUND ROUND *
PERFORMANCE 4 ROUNDS(X) 2_ROUNDS(%) - RATING #-
SAMPLE TYPE NO.
--------------------------------------------------
018 4/4
Paint Chips (%)
019 4/4
020 4/4
16/16 100 8/8 100 P
021 4/4
020 4/4
Soil (mg/kg) 8/8 100 8/8 100 P
021 4/4
018 4/4
Dust Wipes (ug)
019 4/4
020 4/4
16116 100 8/8 100 P
021 4/4
number of total samples analyzed.
* The denominators represent the
represent the number of acceptable results.
The numerators -: Not Rated
# P : Proficient NP: Nonproficient
results over four rounds
Performance ratings are based on accumulated
ground paint chips, soil , or dust
(one year). A lab's performance in
wipes is rated proficient (P), if: 1) three-fourths (75X) or more of the
four rounds are acceptable or 2) for the last
accumulated results over
analyzed and the results are 100 % acceptable.
two rounds, all samples are
NYC-WTC 000121037
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