NYC 9/11 Public Portal Document
ENVIRONMENTAL LEAD PROFICIENCY ANALYTICAL TESTING (ELPAT) PROGRAM
INDIVIDUAL LABORATORY REPORT FOR ROUND 023 ,.
LAB ID=07054 JUNE 24, 1998
ATC ASSOCIATES INC. NY, NEW YORK, MY 1^O010
SAMPLE REPORTED REFERENCE ACCEPTABLE •RANGE # LAB R 2&
SAMPLE TYPE NO. RESULTS VALUES * LOWER UPPER PERFORMANCE STARE
1 0 0375 D.^366 9-0265 0.0467 A 0.28
Paint Chips (X)
2 1.8316 1.8085 1.1.203 2.1966 A 0.18
3 C.4177 0.4255 0.3469 0.5042 A -0.30
4 1.0184 1.0131 0.8111 1.2152 A 0.08
Soil (mg/!.g) 1 1392.7 1421.6 1187.5 1655.6 A -0.37
2 61.4 57.4 36.9 77.9 A 0.59
3 213 218.9 168 269.7 A -0.35
4 459.4 460.2 388.2 532.2 A -0.03
1 112.3 129.1348 99.4 158.9 A -1.70
Dust Wipes (ug)
2 249.5 271.547 210.4 332.7 A -1.08
3 55.2 59.0183 38.4 79.7 A -0.56
4 569 561.9713 438.3 685.7 A 0.17
* Reference value is the mean of the reference Laboratories
# Upper limit: reference value + 3 standard deviations
Lower Limit: reference value - 3 standard deviations
2 A: Analysis acceptable; -: Results not reported
H: Results > upper limit, I.: Results < Lower limit, not acceptable
& 2 Score = (reported result-reference value)/standard deviation
Note: the acceptablity of reported results is based on z-scores.
This is why a reported result may appear acceptable according to
performance limits, but be identified as an outlier.
==a=a===a==aa===aa=aav=a=a=a~aaa=aaa=aaa caaaa=aaaaaaaaaaaa
____tea==.=
a
LABORATORY YEAR-TO-DATE PERFORMANCE REPORT
LAB ID=07054
ROUND ROUND * ACCUMULATED PERFORMANCE PROFICIENCY
SAMPLE TYPE NO. PERFORMANCE 4 ROUNDS(X) 2 ROUNDS(X) RATING #
Paint Chips (X) 020 4/4
021 4/4
022 4/4
023 4/4 16/16 100 8/8 100 P
Soil (mg/kg) 020 4/4
021 4/4
022 4/4
023 4/4 16/16 100 8/8 100 P
Dust Wipes (ug) 020 4/4
021 4/4
022 4/4
023 4/4 16/16 100 8/8 100 P
• The denominators represent the number of total samples analyzed.
The numerators represent the number of acceptable results.
# P : Proficient NP: Nonproficient -: Not Rated
Performance ratings are based on accumulated results over four rounds
(one year). A lab's performance in ground paint chips, soil, or dust
wipes is rated proficient (P), if: 1) three-fourths (75%) or more of the
accumulated results over four rounds are acceptable or 2) for the last
two rounds, all samples are analyzed and the results are 100 % acceptable.
NYC-WTC 000095602
OCR can misread numbers and units. Confirm readings against the page image before using them.