NYC-WTC_000189289

NYC 9/11 Public Portal Document >■3

I Pace Analytical Services Inc 1700 Elm Street Suite 20D ’ace Analytical" Minneapolis MN 55414 Phone 612 6071700 Fax 612 607 6444 SPIKE RECOVERY RELATIVE PERCENT DIFFERENCE (RPD) RESULTS WWW pacelabs com

Client ATC

I ri'"" ] SPIKE 1 ID SPIKE 1578 SPIKE 1 Filename’'^"" F20416B_02 I SPIKE 2 ID SPIKE DUP 1377 I SPIKE 2 Filename F20416B_03

/- SPIKE 1 SPIKE 2 COMPOUND REC % REC % RPD % _________________

2378 TCDF 103 99 40

2378 TCDD 103 98 50

12378 PeCDF 100 96 41 23478 PeCDF 103 97 60 ! 12378 PeCDD 103 99 40 'I

123478 HxCDF 102 99 30 123678 HxCDF 105 100 49 234678 HxCDF 105 99 59 123789 HxCDF 104 99 49

123478 HxCDD 110 105 47 123678 HxCDD 112 105 65 123789 HxCDD 109 106 28

1234678 HpCDF 111 103 75 1234789 HpCDF 108 105 28

1234678 HpCDD 111 107 37

OCDF 98 93 52 OCDD 108 101 67

REC = Percent Recovered RPD = The difference between the two values divided by the average NA = Not Applicable Report No 02 1055555

CITY_21MC100_003085245

NYC-WTC_000189296