NYC 9/11 Public Portal Document
TESTING (ELPAT) PROGRAM
ENVIRONMENTAL LEAD PROFICIENCY ANALYTICAL
INDIVIDUAL LABORATORY REPORT FOR ROUND 021 r'..
LAB ID=07054 DECEMBER 16, 1997
ATC ASSOCIATES, INC. MY, NEW YORK, NY 10010
-..Qa.~ ACCEPTABIt RANGE LAB : Z
=-~'- SAMPLE REPORTED REFERENCE
• LOWER UP!%FR PERFORMANCE SCORE
NO. RESULTS VALUES
SAMPLE TYPE ----------
_ ------_------------------------------ ------------------
~
U .564 ~_ .~ A 0.39
Point Cnips (X) 1 1.3!8.33 1.0578 A
0.0575 0.79
2 0.0459 0.0452 0.0328 1.58
3 7.756 6.6414 4.5218 8.7609 -0.36
0.5141 0.395 0.6332 A
4 0.4999
387.3 539.7 A -0.15
1 459.6 463.5
Soil (mg/kg) 675.6 985.9 A 0.31
2 846.9 830.8
7
3 AA -0.17
4 342.4 347.2 262.2 432.3
1 270.3 269.5319 198.4 340.7 A 0.03
Dust viper (ug) 111.5 207.5 A 0.73
2 163.8 159..c, 374
, C:,. S A (1.16
3 80.6 79.2462 53.9
4 704.9 735.3033 592.8
reference laboratories
' Reference value is the mean of the deviations
reference value + 3 standard
it Upper limit:
standard deviations
Lower limit: reference value - 3
A: Analysis acceptable; -: Results not reported
acceptable
H: Results > upper Limit, L: Results < Lower limit, not
(reported result -reference value)/standard deviation
S 2 Score =
results is based
Note: the acceptablity of reported accepta le ores.
onbz-sc :°
This is why a reported result nay appear outlier. - --
performance limits, but be identified as an
LABORATORY YEAR-TO-DATE PERFORMANCE REPORT
LAB I0=07054
ACCUMULATED PERFORMANCE PROFICIENCY
ROUND ROUND *
PERFORMANCE 4 ROUNDS(%) 2 ROUNDS(")---- RATING-0--
SAMPLE TYPE NO.
------------------------------------------------
018 4/4
Paint Chips (X)
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
Oust Wipes (ug)
019 4/4
020 4/4
16/16 100 8/8 100 P
021 4/4
number of total samples analyzed.
• The denominators represent the
number of acceptable results.
The numerators represent the roficient -: Not Rated
Proficient NP: Na np
$P results over four rounds
Performance ratings are based on accurulated
ground paint chips, soil, or dust
(one year). A labs performance In
three-fourths (75X) or more of the
wipes is rated proficient (P), if: 1) acceptable or 2) for the Last
accumulated results over four rounds are
samo(es are analyzed and the results are 100 X acceptable.
two rounds, all
NYC-WTC 000121738
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