NYC-WTC_000226903

NYC 9/11 Public Portal Document

Pace Analytical Services, Inc. 1700 Elm Street - Suite 200. ia Minneapolis, MN 55414

^ace Analytical Method 8290 Analysis Results Tel: 612-607-1700 Fax: 612- 607-6444

Client - ATC 'i Client's Sample ID ATC-1226-STY-DX3 Lab Sample ID 103241477- Filename F20107A_10 aa Injected By Total Amount Extracted LMD 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 12/26/2001 ICAL Date 01/02/2002 Received 12/28/2001 CCal Filename(s) F20107A_01 &F20107A_15 Extracted ' 01/03/2002 Method Blank ID BLANK-1401 Analyzed 01/07/2002 17:32 . 171 LRL Internal ng's Percent -i Native isomers Cone ng/m2 EMPC ng/m2 ng/m2 Standards Added Recovery 2,3.7,8-TCDF 0.0028 0.00200 J 2,3,7,8-TCDF-13C 2.00 76 I Total TCDF 2,3,7,8-TCDD 0.0820 _ ND 0.00200 - 0.00200 2,3,7,8-TCDD-13C 1,2,3,7,8-PeCDF-13C 2,3,4,7,8-PeCDF-13C . 2.00 2.00 2.00 83 76 72 Total TCDD 0.1300 0.00200 1,2,3,7,8-PeCDD-13C 2.00 83 i 1,2.3.7.8-PeCDF 2,3,4,7,8-PeCDF ND ND 0.01000 ■ 0.01000 1,2,3,4,7,8-HxCDF-13C 1,2,3,6,7,8-HxCDF-13C 2,3,4,6,7,8-HxCDF-13C 2.00 2.00 . 2.00 101 79 88 Total PeCDF 0.0620 0.01000 1,2,3,7,8,9-HxCDF-13C 2.00 104 1,2,3,4,7,8-HxCDD-13C 2.00 112 ■ b- 1,2,3,6,7,8-HxCDD-13C 2.00 79 1,2.3,7,8-PeCDD ND 0.01000 Total PeCDD 0.1400 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 105 1,2,3,4,7,8,9-HpCDF-13C 2.00 119 1,2,3,4,7,8-HxCDF ND 0.01000 • 1,2,3,4,6,7,8-HpCDD-13C 2.00 122 1,2,3,6,7,8-HxCDF ■ ND 0.01000 OCDD-13C. 4.00 103 2,3,4,6,7,8-HxCDF ND 0.01000 1,2,3,7,8,9-HxCDF ND o.Oiooo 1,2,3,4-TCDD-13C 2.00 NA Total HxCDF 0.0220 0.01000 J 1,2,3,7,8,9-HxCDD-13C 2.00 NA

1,2,3,4,7.8-HxCDD ND 0.01000 2,3,7,8-TCDD-37CI4 0.20 85 1,2,3,6,7,8-HxCDD ND 0.01000 1,2,3,7,8,9-HxCDD ND 0.01000 Total HxCDD 0.1200 0.01000 1,2,3,4,6,7,8-HpCDF 0.0240 0.01000 J Total 2,3.7.8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.01000 Equivalence: 0.0013 ng/m2 • lJ Total HpCDF • 0.0240 0.01000 J (Using ITE Factors)

1.2,3,4,6,7,8-HpCDD 0.0460 0.01000 J a Total HpCDD 0.0710 0.01000 J OCDF 0.0240 0.02000 J OCDD 0.2800 0.02000 i Cone = Concentration (Totals include 2,3,7,8-substituted isomers) EMPC = Estimated Maximum Possible Concentration LRL = Lower Reporting Limit I = Interference E = PCDE Interference A = Detection Limit based on signal-to-noise measurement S = Saturated signal . J = Concentration detected is below the calibration range, ND = Not Detected B = Less than 10 times higher .than method blank level NA = Not Applicable , P = Recovery outside of target range NC = Not Calculated Nn = Value obtained from additional analysis * = See Discussion Report No.... 01-1052682

L...55 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.

CITY_21MC100_002896270

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