NYC-WTC_000226903

NYC 9/11 Public Portal Document

fl a Pace Analytical Services, Inc. 1700 Elm Street, Suite'200 '^ceAnalyticar 'i Minneapolis, MN 55414 Phone: 612:6071700 www.pacelabs.cDm Fax: 612.6076444 SPIKE RECOVERY RELATIVE PERCENT DIFFERENCE (RPD) RESULTS

Client. ....ATC

I SPIKE 1 ID............... J; SPIKE-1407 SPIKE 1 Filenarne F20107A_12 SPIKE-DUP-1267 tel SPIKE 2 ID......... SPIKE 2 Filename..... F20107A_13

SPIKE 1 . SPIKE 2 a COMPOUND REC,% REC,% RPD,%

I 2378-TCDF

2378-TCDD ■1.06

105 98

100 7.8

4.9

I 12378-PeCDF 23478-PeCDF 98 100 97 96 1.0 4.1 - ■s

12378-PeCDD 104. 98 5.9

12347’8-HxCDF 106 110 3.7 i 12367.8-HxCDF 234678-HxCDF 108 107 99 103 8.7 3.8 123789-HxCDF 108 105 2.8 3 123478-HxCDD 113 109 3.6 123678-HxCDD 112 107 4.6

a a • 123789-HxCDD ' 118 111 . 6.1

1234678-HpCDF 109 107 1.9 1234789-HpCDF 111 109 1.8 J ■ 1234678-HpCDD: 108 105 2.8

a OCDF OCDD 115 110 109 102 5.4 7.5

I REC = Percent Recovered RPD = The difference between the two values divided by the average. . ■ I NA = Not Applicable . Report No 01-1052682

d GJ REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services„lnc.

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NYC-WTC_000226927