NYC 9/11 Public Portal Document
ANALYTICAL TESTING (ELPAT) PROGRAM
ENVIRONMENTAL LEAD PROFICIENCY
INDIVIDUAL LABORATORY REPORT FOR ROUND 023
LAB tD=07054 JUNE 24, 1998
ATC ASSOCIATES INC. NY, NEW TURK, NY 10010
REFERENCE ACCEPTABLE RANGE # LAB d Z 8
.;AMPLE REPORTED
VALUES ' LOWER UP ER PERFORMANCE SCORE
NO. RESULTS
-SMPLE TYPE
O.ti366 0.0265 0.0467 A - 20
1 0.0375
:t nt Chips ( 1.4203 2.1966 A 0.18
2 1 .831h 1.8085
0.3469 0.5042 -0.30
3 0.4177 0.425^
1.0131 0.8111 1.2152 0.(JO
4 1.0184
1392.7 1421 .6 1187.5 1655.6 A -0.37
Soi l (mg/kg) 1 57 t 36.9 77.9 A 0.59
2 61.4
168 269.7 A -0.35
3 213 7..e 9
388.2 532.2 A -0.03
4 459.4 46(.4
1112.3 129. 348 99.4 158.9 A
1
Oust wipes (ug) -1.08
2 249.5 ?71.547 210.4 332.7 A
59.0183 38.4 79.7 A -0.56
3 55.2
438.3 685.7 A 0.17
4 5o5 561,9713
reference Laboratories
• Reference value is the mean of the
3 standard deviations
# Upper limit: reference value t standard deviations
Lower limit: reference value • 3
acceptable; Results not reported
A: Analysis
upper limit, L: Results < lower limit, not acceptable
H: Results > value)/standard deviation
result - reference
8 Z Score = (reported
the acceptabt ity of reported results is based on z -scores.
Note:
may appear acceptable according to
This is why a reported result
performance l imits, but be identified as an outl ier.
LABORATORY YEAR' TO-DATE PERFORMANCE REPORT
LAB ID=J7054
PERFORMANCE PROFICIENCY
ROUND ROUND * ACCUMULATED
4 ROUNDS(%) 2 ROUNDS( ) RATING #
NO. PERFORMANCE
SAMPLE TYPE
020 4/4
Paint Chips (ii)
021 4/4
022 4/4
16/16 100 8/8 100 P
023 4/4
020 4/4
Soi l (mg/kg)
021 4/4
022 4/4
16/16 100 8/8 100 P
023 4/4
020 4/4
Oust Wipes (ug)
021 4/4
022 4,'4
4/4 16/16 100 8/8 100 P
023
number of total samples analyzed.
• The dencminators represent the
nt,2nber of acceptable results.
The numerators represent the Not Rated
P : Proficient NP: Nonproficient
accumulated results over four rounds
Performance ratings are based on
in ground paint chips, soil , or dust
(one year). A lab's performance
(P1, if: 1) three -fourths (757) or more of the
wipes is rated proficient
accumulated results over four rounds are acceptable or 2) for the last
rounds, al l samples are analyzed and the results are 100 : acceptable.
two
NYC-WTC 000119944
OCR can misread numbers and units. Confirm readings against the page image before using them.