NYC 9/11 Public Portal Document
ANALYTICAL TESTING (ELPAT) PROGRAM
ENVIRONMENTAL LEAD PROFICIENCY
FORRROJNO 022
INDIVIDUAL LABORATORY REPORT
LAB ,D=07054 18, 1998
NY, NEW YORK, NY 10010
ATC ASSOCIATES, INC.
ti ACCEPTABLE RANGE # LAB a Z &
SAMPLE REPORTED REFERENCE
LOWER UPPER PERFORMANCE SCORE
NO. RESULTS VALUES
SAM LE TYPE ------------
T-~''~------' - ~ ---- 1.4275 1 .4607 1.2043 1.7171 A
sP.ir,t chips ( ► ) 1
0.0818 0.0628 0.1003 A 0.66
2 0.086 1,04
4.5632 3.6256 5.5009 A
3 4.2394
0.6454 0.5264 ,x.7645 A -0.52
.. 0.6247
1 351.6 360.8 292.3 429.4 A -0.40
Soil (mg/kg) 76.8 73.2 49.7 96.7 A 0.46
2 986.5 A -0.69
3 799.3 834.5 682.5
560 806.3 A •0.81
4 649.9 683.2
1 531.6 565.9373 432.1 699.8 A -0.77
Dust wipes (ug) 123.5 -0.47
128.9551 94.1 113.8 A
2 272.6 272.0263 198.9 345 2 A 0.02
3
895.2703 714.6 1076 A -0.53
4 863.1
roan of-t`.~refecerrcewlaooratories
• Reference value is the
limit: refereZ..e.Yatue + 3 standard deviations
# Upper
Lower limit: reference value • 3 standard deviations
acceptable; -: Results not reported
A: Analysis acceptable
L: Results < lower limit, not
H: Results > upper limit,
resu(t-reference value)/standard deviation
8 Z Score = (reported
reported results is based on z-scores.
Note: the acceptablitY of according to
This is why a reported result may appear acceptable
but be identified as an outlier.
performance l imits,
W
REPORT
LABORATORY YEAR-TO-DATE PERFORMANCE
LAB I0=07054
PERFORMANCE PROFICIENCY
ROUND ROUND • ACCUMULATED
4 ROUNDS(%) 2 ROUNDS(%) RATING #
NO. PERFORMANCE
SAMPLE TYPE
019 4/4
Paint Chips (%)
020 4/4
021 4/4
4/4 . 16/16 100 8/8 100 P
022
020 4/4
Soil (mg/kg) 4/4
021 100 P
4/4 12/12 100 8/8
022
019 4/4
Dust Wipes (ug) 4/4
020
021 4/4
4/4 16/16 100 8/8 100 P
022
ntmber of total samples analyzed.
• The denominators represent the
numerators represent the number of acceptable results.
The -: Not Rated
NP: Nonproficient
# p : Proficient accumulated results over four rounds
Performance ratings are based on
in ground paint chips, soil, or dust
(one year). A tab's performance
if: 1) three-fourths (75X) or more of the
wipes is rated proficient (P),
results over four rounds are acceptable or 2) for the last
accumulated
are analyzed and the results are 100 % acceptable.
two rounds, all samples
NYC-WTC 000121036
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