NYC 9/11 Public Portal Document
TESTING (ELPAI) PROGRAM
ENVIRONMENTAL LEAD PROFICIENCY ANALYTICAL ROUND 022
INDIVIDUAL LABORATORY REPORT FOR
LAB 10=07054 MARCH 18, 1998
ATC ASSOCIATES, INC. NY, NEW YORK, NY 10010
REFERENCE ACCEPTABLE RANGE # LAB a Z &
SAMPLE REPORTED UPPER PERFORMANCE SCORE
RESULTS VALUES * LOWER
SAM LE TYPE NO.
_ ._...-........---._... -0.39
---~--------~ !.4607 1.2043 1.7171 A
Pfirtt Chips (X) 1 1.4275 0.66
0.0818 0.0628 0.1 0? A
2 0.066 -1.04
4.2394 4.5632 3.6256 5.5009 A
3 A -0.52
4.6247 0.6454 0.5264 5.7645
360.8 292.3 429.4 A -0.40
Soil (mg/kg) 1 351.6 0.46
73.2 49.7 96.7 A
2 76.8 -0.69
834.5 682.5 986.5 A
3 799.3 -0.81
683.2 560 806.3 A
4 649.9
432.1 699.8 A -0.77
1 531.6 565.9373
Oust Wipes (ug) 128.9551 94.1 163.8 A 0.47
2 123.5 0.02
3 272.6 272.0263 198.9 345 2 AA -0.53
863.1 895.2703 714.6 1076
4
ref.ererace.taaboratories _ .
Reference value is the nean of-ti deviations
referer.t:c atue + 3 standard
# Upper limit: standard deviations
Lower limit: reference value - 3
Results not reported
2 A: Analysis acceptable; •:
upper limit, L: Results < lower limit, not acceptable
H: Results > value)/standard deviation
(reported result -reference
$ Z Score = results is based on z-scores.
reported
Note: the acceptablity of
may appear acceptable according to
This is why a reported result identified as an outlier. i--_-
performance limits, but be -ter, ___--------
------ -
LABORATORY YEAR-TO'DAJE PERFORMANCE REPORT
LAS ID=07054
PERFORMANCE PROFICIENCY
ROUND ROUND * ACCUMULATED
PERFORMANCE 4 ROUNDS(%) .+-2-ROUNDS(%) --RATING-#.-
SAMPLE TYPE NO.
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)
021 4/4
4/4 12/12 100 8/8 100 P
022
Dust Wipes (ug) 019 4/4
020 4/4
021 4/4
4/4 16/16 100 8/8 100 P
022
number of total samples analyzed.
• The denominators represent the
represent the number of acceptable results.
The numerators Nonproficient -: Not Rated
NP:
f! P : Proficient results over four rounds
on accumulated
Performance ratings are based
chips, soil, or dust
paint
(one year). A lab's performance in ground
proficient (P), if: 1) three-fourths (75%) or more of the
wipes is rated acceptable or 2) for the last
accumulated results over four rounds are
analyzed and the results are 100 % acceptable.
two rounds, all samples are
NYC-WTC 000121509
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