NYC 9/11 Public Portal Document
PROGRAM
ENVIRONMENTAL LEAD PROFICIENCY ANALYTICAL TESTING (ELPAT)
INDIVIDUAL LABORATORY REPORT FOR ROUND 021
LAB IDa07054 DECEMBER 16, 1997
ATC ASSOCIATES, INC. NY, NEW YORK, NY 10010
REFERENCE ACCEPTABLE RANGE # LAB D Z de
SAMPLE REPORTED
RESULTS VALUES * LOWER UPPER PERFORMANCE SCORE
NO.
SAMPLE TYPE--------------------------------------------------------------------
1.0578 1.2516 P 0.3
Paint Chips (%) 1 0.17
2 00459 0.0452 0.0328 0.0575 A
3 7.756 6.6414 4.5218 8.7609 A 1.58
0.4999 0.5141 0.395 0.6332 A -0.36
4
459.6 463.5 387.3 539.7 A -0.15
Soil (mg/kg) 1
2 846.9 830.8 675.6 985.9 A 0.31
78.8 69.2 46.5 91.8 A 1.28
3 -0.17
4 342.4 347.2 262.2 432.3 A
270.3 261.5319 198.4 340.7 A 0.03
Dust wipes (ug) 1
163.8 159.5374 111.5 207.5 A 0.27
2 0.16
3 80.6 79.2462 53.9 104.6 A
704.9 735.3033 592.8 877.8 A -0.64
4
Laboratories
* Reference value is the mean of the reference
# Upper Limit: reference value + 3 standard deviations
Lower Limit: reference value - 3 standard deviations
B A: Analysis acceptable; Results not reported
-:
not acceptable
H: Results > upper limit, L: Results < Lower limit, deviation
& Z Score a (reported result-reference value)/standard
-scores.
Note: the acceptablity of reported results is based on z according to
This is why a reported result may appear acceptable
performance limits, but be identified as an outlier.
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LABORATORY YEAR-TO-DATE PERFORMANCE REPORT
LAB I0=07054
ROUND * ACCUMULATED PERFORMANCE PROFICIENCY
. ROUND RATING #
NO. PERFORMANCE 4 ROUNDS(%) 2 ROUNDS(%)
SAMPLE TYPE
--------------------------------------------------------------------------
Paint Chips (%) 018 4/4
019 4/4
020 4/4
4/4 16/16 100 8/8 100 P
021
Soil (mg/kg) 020 4/4
021 4/4 8/8 100 8/8 100 P
Dust Wipes (ug) 018 4/4
019 4/4
020 4/4
4/4 16/16 100 8/8 100 P
021
samples analyzed.
* The denominators represent the number of total results.
The numerators represent the number of acceptable
NP: Nonproficient Not Rated
# P : Proficient
-:
four rounds
Performance ratings are based on accumulated results over
soil, or dust
(one year). A lab's performance in ground paint chips, or more of the
(75%)
wipes is rated proficient (P), if: 1) three-fourths for the last
accumulated results over four rounds are acceptable or 2)
analyzed and the results are 100 % acceptable.
two rounds, all samples are
NYC-WTC 000095604
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