NYC 9/11 Public Portal Document
TESTING (ELPAT) PROGRAM
ENVIRONMENTAL LEAD PROFICIENCY ANALYTICAL
INDIVIDUAL LABORATORY REPORT FOR ROUND 024
LAB =~ 07054 SEPTEMBER 23, 1998
ATC As'SOC,ATES INC., NEW YORK, MY 10010
REPORTED REFERENCE ACCEPTABLE RANGE # LAB a Z b
SAMPLE
*
• cAMPLE TYPE N0. RESULTS VALUES LOWER UPPER PERFORMANCE SCORE
----------------------------------
~_a.. ------- -
0.6582 0.7432 0.812 0.9052 A -1.57
~Paint Ch ps (om) 1
0.1752 0.2127 0.1492 0.2762 A 1.77
3 0.051 0.0524 0.Iii77 0.,%,72 A -0.29
4 3.2413 3.3834 2.6436 4.123[ A •0.58
400.7 440.6 354 527.2 A -1.38
Soil (mg/kg) i
A -1.28
626.1 696-3 545.3 827.4
3 713.1 820.9 651 .2 990.5 A -1 .91
39.9 34.2 13. 1 55.3 A 0.81
58 57.8355 37.5 78.2 A 0.02
Dust wipes (ug) i
2 '047.3 1127.0581 884 1370.2 A -0.98
3 127. 1 128.3887 93.4 163.4 A -0. 11
4 354.8 401 .8589 326 477.8 A • 1 .86
laboratories
• Reference value is the mean of the reference
Upper l imit: reference value + 3 standard deviations
Lower L imit: reference value - 3 standard deviations
m A: Analysis acceptable; Results not reported
< lower Limit, not acceptable
H: Results > upcer Limit, L: Results
value)/standard deviation
8 Z Score = (reported result-reference
based on z-scores.
Note: the acceptabl ity of reported results is
acceptable according to
This is why a reported result may appear
performance l imits, but be identified as an outl ier.
LABORATORY YEAR-TO-DATE PERFORMANCE REPORT
LAB 1D=07054
ROUND * ACCUMULATED PERFORMANCE PROFICIENCY
ROUND
PERFORMANCE 4 ROUNDS(.) 2 ROUNDS(, ) RATING
. SAMPLE TYPE NO.
................................. ...........v -------------- -----------------
Paint Chips (Y.) 021 4/4
022 4/4
023 4/4
024 4/4 16/16 100 8/8 100 P
Soil (mg/kg) 021 4/4
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
analyzed.
• The denominators represent the number of total samples
numerators represent the number of acceptable results.
The
NP: 1onproficient : Not Rated
P : Proficient
Performance ratings Fe,-based on accumulated results over four rounds
soi l , or dust
(one year). A Lao's err ormance in ground paint chips,
profici nt (P), if: 1) three-fourtns (75%.) or more of the
wipes is rated
for the Last
accumulated results over four rounds are acceptable or 2)
are 100 i acceptable.
two rounds, all samples are analyzed and the results
NYC-WTC 000120983
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