### Site: DTE MONROE ICR TESTING Your C.O.C. #: n/a

Attention: Tom Snyder BT Environmental Consulting 2615 WolcottSt. Ferndale, MI USA 48220

Report Date: 2010/07/28


## CERTIFICATE

OF ANALYSIS

MAXXAM JOB#: B089667 Received: 2010/07/08,11:30 SampleMatrix: Stack

Sampling Train #SamplesReceived: 4

Date Date Method Analyses Quantity Extracted Analyzed LaboratoryMethod Reference Dioxins/Furans in Air(Method 23) ( 1 ) 4 2010/07/10 2010/07/20 BRL SOP-00404 EPA1613Bmod(M23/23A) PCB Congeners in Air(1668A) 4 2010/07/10 2010/07/26 BRL SOP-00408, 409 EPA1668A(0010) mod

* RPDs calculated using rawdata. The rounding offinal results mayresult in the apparent difference.

(1) This testwas performed in Maxxam Mississauga underMaxxam Burlington SCC Accreditation

U = Undetected at the limit of quantitation. J = Estimated concentration between the EDL & RDL. B = BlankContamination. Q = One ormore qualitycontrol criteria failed.



### Encryption

Key

Please direct all questions regarding this Certificate of Analysis to yourProject Manager.

LINA BARRETO, Project Manager Email: Lina.Barreto@maxxamanalytics.com Phone#(905) 817-5700

==================================================================== Maxxam has procedures in place to guard against improperuse ofthe electronicsignature and have the required "signatories", as persection 5.10.2 ofISO/IEC 17025:2005(E), signing the reports. ForService Group specificvalidation please referto the Validation Signature Page.

Total coverpages: 1

Maxxam Analytics International Corporation o/a Maxxam Analytics Burlington:5555 North Service Road, Burlington, Ontario L7L 5H7 Telephone(905) 332-8788 Fax(905) 332-9169 Page 1 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### RESULTS OF ANALYSES OF STACKSAMPLING TRAIN

Maxxam ID G K 9 3 7 6 Sampling Date 2010/06/29 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s F.BLANK-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
33'44'-TetraCB-(77) ng 0.014 U 0.014 0.30 0.00010 0.0000014 2202679 344'5-TetraCB-(81) ng 0.014 U 0.014 0.30 0.00030 0.0000042 2202679 233'44'-PentaCB-(105) ng 0.013 U ( 1 ) 0.013 0.30 0.000030 0.00000039 2202679 2344'5-PentaCB-(114) ng 0.0094 U 0.0094 0.30 0.000030 0.00000028 2202679 23'44'5-PentaCB-(118) ng 0.032 U ( 1 ) 0.032 0.30 0.000030 0.00000096 2202679 23'44'5'-PentaCB-(123) ng 0.0096 U 0.0096 0.30 0.000030 0.00000029 2202679 33'44'5-PentaCB-(126) ng 0.0094 U 0.0094 0.30 0.10 0.00094 2202679 HexaCB-(156)+(157) ng 0.0098 U 0.0098 0.60 0.000030 0.00000029 2202679 23'44'55'-HexaCB-(167) ng 0.0097 U 0.0097 0.30 0.000030 0.00000029 2202679 33'44'55'-HexaCB-(169) ng 0.0099 U 0.0099 0.30 0.030 0.00030 2202679 233'44'55'-HeptaCB-(189) ng 0.014 U 0.014 0.30 0.000030 0.00000042 2202679 TOTAL TOXIC EQUIVALENCY ng 0.0012 SurrogateRecovery(%) C13-233'44'55'-HeptaCB-(189) % 138 2202679 C13-233'44'5-HexaCB-(156) % 130 2202679 C13-233'44'5'-HexaCB-(157) % 130 2202679 C13-233'44'-PentaCB-(105) % 145 2202679 C13-23'44'55'-HexaCB-(167) % 138 2202679 C13-2344'5-PentaCB-(114) % 137 2202679 C13-23'44'5-PentaCB-(118) % 141 2202679 C13-2'344'5-PentaCB-(123) % 140 2202679 C13-33'44'55'-HexaCB-(169) % 136 2202679 C13-33'44'5-PentaCB-(126) % 153( 2 ) 2202679 C13-33'44'-TetraCB-(77) % 126 2202679 C13-344'5-TetraCB-(81) % 126 2202679

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds ( 1 ) EMPC /

NDR - Peakdetected does not meet ratio criteria and has resulted in an elevated detection limit. ( 2 ) RecoveryorRPD forthis parameteris outside control limits. The overall qualitycontrol forthis analysis meets acceptability criteria.

Page 2 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### RESULTS OF ANALYSES OF STACKSAMPLING TRAIN

Maxxam ID G K 9 3 7 7 Sampling Date 2010/06/29 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s RUN 1-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
33'44'-TetraCB-(77) ng 0.081 J 0.036 0.30 0.00010 0.0000081 2202679 344'5-TetraCB-(81) ng 0.037 U 0.037 0.30 0.00030 0.000011 2202679 233'44'-PentaCB-(105) ng 0.24 J 0.012 0.30 0.000030 0.0000072 2202679 2344'5-PentaCB-(114) ng 0.019 J 0.012 0.30 0.000030 0.00000057 2202679 23'44'5-PentaCB-(118) ng 0.68 0.011 0.30 0.000030 0.000020 2202679 23'44'5'-PentaCB-(123) ng 0.012 U 0.012 0.30 0.000030 0.00000036 2202679 33'44'5-PentaCB-(126) ng 0.012 U 0.012 0.30 0.10 0.0012 2202679 HexaCB-(156)+(157) ng 0.043 J 0.011 0.60 0.000030 0.0000013 2202679 23'44'55'-HexaCB-(167) ng 0.015 U ( 1 ) 0.015 0.30 0.000030 0.00000045 2202679 33'44'55'-HexaCB-(169) ng 0.011 U 0.011 0.30 0.030 0.00033 2202679 233'44'55'-HeptaCB-(189) ng 0.016 U 0.016 0.30 0.000030 0.00000048 2202679 TOTAL TOXIC EQUIVALENCY ng 0.0016 SurrogateRecovery(%) C13-233'44'55'-HeptaCB-(189) % 143 2202679 C13-233'44'5-HexaCB-(156) % 125 2202679 C13-233'44'5'-HexaCB-(157) % 125 2202679 C13-233'44'-PentaCB-(105) % 132 2202679 C13-23'44'55'-HexaCB-(167) % 126 2202679 C13-2344'5-PentaCB-(114) % 127 2202679 C13-23'44'5-PentaCB-(118) % 134 2202679 C13-2'344'5-PentaCB-(123) % 130 2202679 C13-33'44'55'-HexaCB-(169) % 127 2202679 C13-33'44'5-PentaCB-(126) % 141 2202679 C13-33'44'-TetraCB-(77) % 132 2202679 C13-344'5-TetraCB-(81) % 131 2202679

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds ( 1 ) EMPC /

NDR - Peakdetected does not meet ratio criteria and has resulted in an elevated detection limit.

Page 3 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### RESULTS OF ANALYSES OF STACKSAMPLING TRAIN

Maxxam ID G K 9 3 7 8 Sampling Date 2010/06/30 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s RUN 2-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
33'44'-TetraCB-(77) ng 0.088 J 0.015 0.30 0.00010 0.0000088 2202679 344'5-TetraCB-(81) ng 0.048 U ( 1 ) 0.048 0.30 0.00030 0.000014 2202679 233'44'-PentaCB-(105) ng 0.24 J 0.0090 0.30 0.000030 0.0000072 2202679 2344'5-PentaCB-(114) ng 0.022 J 0.0091 0.30 0.000030 0.00000066 2202679 23'44'5-PentaCB-(118) ng 0.72 0.0087 0.30 0.000030 0.000022 2202679 23'44'5'-PentaCB-(123) ng 0.0092 U 0.0092 0.30 0.000030 0.00000028 2202679 33'44'5-PentaCB-(126) ng 0.0091 U 0.0091 0.30 0.10 0.00091 2202679 HexaCB-(156)+(157) ng 0.051 J 0.011 0.60 0.000030 0.0000015 2202679 23'44'55'-HexaCB-(167) ng 0.021 J 0.010 0.30 0.000030 0.00000063 2202679 33'44'55'-HexaCB-(169) ng 0.011 U 0.011 0.30 0.030 0.00033 2202679 233'44'55'-HeptaCB-(189) ng 0.016 U 0.016 0.30 0.000030 0.00000048 2202679 TOTAL TOXIC EQUIVALENCY ng 0.0013 SurrogateRecovery(%) C13-233'44'55'-HeptaCB-(189) % 143 2202679 C13-233'44'5-HexaCB-(156) % 126 2202679 C13-233'44'5'-HexaCB-(157) % 126 2202679 C13-233'44'-PentaCB-(105) % 134 2202679 C13-23'44'55'-HexaCB-(167) % 125 2202679 C13-2344'5-PentaCB-(114) % 129 2202679 C13-23'44'5-PentaCB-(118) % 133 2202679 C13-2'344'5-PentaCB-(123) % 132 2202679 C13-33'44'55'-HexaCB-(169) % 129 2202679 C13-33'44'5-PentaCB-(126) % 140 2202679 C13-33'44'-TetraCB-(77) % 127 2202679 C13-344'5-TetraCB-(81) % 125 2202679

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds ( 1 ) EMPC /

NDR - Peakdetected does not meet ratio criteria and has resulted in an elevated detection limit.

Page 4 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### RESULTS OF ANALYSES OF STACKSAMPLING TRAIN

Maxxam ID G K 9 3 7 9 Sampling Date 2010/07/01 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s RUN 3-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
33'44'-TetraCB-(77) ng 0.065 J 0.018 0.30 0.00010 0.0000065 2202679 344'5-TetraCB-(81) ng 0.045 U ( 1 ) 0.045 0.30 0.00030 0.000014 2202679 233'44'-PentaCB-(105) ng 0.19 J 0.0086 0.30 0.000030 0.0000057 2202679 2344'5-PentaCB-(114) ng 0.014 J 0.0087 0.30 0.000030 0.00000042 2202679 23'44'5-PentaCB-(118) ng 0.54 0.0083 0.30 0.000030 0.000016 2202679 23'44'5'-PentaCB-(123) ng 0.0088 U 0.0088 0.30 0.000030 0.00000026 2202679 33'44'5-PentaCB-(126) ng 0.0087 U 0.0087 0.30 0.10 0.00087 2202679 HexaCB-(156)+(157) ng 0.045 J 0.010 0.60 0.000030 0.0000014 2202679 23'44'55'-HexaCB-(167) ng 0.019 J 0.010 0.30 0.000030 0.00000057 2202679 33'44'55'-HexaCB-(169) ng 0.010 U 0.010 0.30 0.030 0.00030 2202679 233'44'55'-HeptaCB-(189) ng 0.013 U 0.013 0.30 0.000030 0.00000039 2202679 TOTAL TOXIC EQUIVALENCY ng 0.0012 SurrogateRecovery(%) C13-233'44'55'-HeptaCB-(189) % 132 2202679 C13-233'44'5-HexaCB-(156) % 125 2202679 C13-233'44'5'-HexaCB-(157) % 125 2202679 C13-233'44'-PentaCB-(105) % 130 2202679 C13-23'44'55'-HexaCB-(167) % 121 2202679 C13-2344'5-PentaCB-(114) % 125 2202679 C13-23'44'5-PentaCB-(118) % 129 2202679 C13-2'344'5-PentaCB-(123) % 126 2202679 C13-33'44'55'-HexaCB-(169) % 128 2202679 C13-33'44'5-PentaCB-(126) % 135 2202679 C13-33'44'-TetraCB-(77) % 127 2202679 C13-344'5-TetraCB-(81) % 131 2202679

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds ( 1 ) EMPC /

NDR - Peakdetected does not meet ratio criteria and has resulted in an elevated detection limit.

Page 5 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### DIOXINS AND FURANS BY HRMS (STACKSAMPLING TRAIN)

Maxxam ID G K 9 3 7 6 Sampling Date 2010/06/29 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s F.BLANK-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
2,3,7,8-Tetra CDD * pg 1.9 U 1.9 30 1.00 1.90 2209116 1,2,3,7,8-Penta CDD pg 2.0 U 2.0 30 1.00 2.00 2209116 1,2,3,4,7,8-HexaCDD pg 1.7 U 1.7 30 0.100 0.170 2209116 1,2,3,6,7,8-HexaCDD pg 1.8 U 1.8 30 0.100 0.180 2209116 1,2,3,7,8,9-HexaCDD pg 1.6 U 1.6 30 0.100 0.160 2209116 1,2,3,4,6,7,8-Hepta CDD pg 1.6 U 1.6 30 0.0100 0.0160 2209116 1,2,3,4,6,7,8,9-Octa CDD pg 14 U ( 1 ) 14 300 0.000300 0.00420 2209116 Total Tetra CDD pg 3.2 U ( 2 ) 3.2 30 2209116 Total Penta CDD pg 2.4 U ( 2 ) 2.4 30 2209116 Total HexaCDD pg 8.4 U ( 2 ) 8.4 30 2209116 Total Hepta CDD pg 1.6 U 1.6 30 2209116 2,3,7,8-Tetra CDF ** pg 3.2 J 1.9 30 0.100 0.320 2209116 1,2,3,7,8-Penta CDF pg 1.8 U 1.8 30 0.0300 0.0540 2209116 2,3,4,7,8-Penta CDF pg 2.6 J 1.8 30 0.300 0.780 2209116 1,2,3,4,7,8-Hexa CDF pg 1.6 U 1.6 30 0.100 0.160 2209116 1,2,3,6,7,8-Hexa CDF pg 1.5 U 1.5 30 0.100 0.150 2209116 2,3,4,6,7,8-Hexa CDF pg 1.7 U 1.7 30 0.100 0.170 2209116 1,2,3,7,8,9-Hexa CDF pg 1.8 U 1.8 30 0.100 0.180 2209116 1,2,3,4,6,7,8-Hepta CDF pg 1.5 U 1.5 30 0.0100 0.0150 2209116 1,2,3,4,7,8,9-Hepta CDF pg 1.8 U 1.8 30 0.0100 0.0180 2209116 1,2,3,4,6,7,8,9-Octa CDF pg 3.6 U 3.6 300 0.000300 0.00108 2209116 Total Tetra CDF pg 3.2 J 1.9 30 2209116 Total Penta CDF pg 2.6 J 1.8 30 2209116 Total HexaCDF pg 1.6 U 1.6 30 2209116 Total Hepta CDF pg 1.6 U 1.6 30 2209116

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch

* CDD = Chloro Dibenzo-p-Dioxin, ** CDF= Chloro Dibenzo-p-Furan TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds ( 1 ) RT> 3 seconds - PCDD/DF analysis - Peakdetected exceeds expected retention time (from internal standard) by greaterthan 3 seconds. ( 2 ) EMPC /

NDR - Peakdetected does not meet ratio criteria and has resulted in an elevated detection limit.

Page 6 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### DIOXINS AND FURANS BY HRMS (STACKSAMPLING TRAIN)

Maxxam ID G K 9 3 7 6 Sampling Date 2010/06/29 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s F.BLANK-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23

TOTAL TOXIC EQUIVALENCY pg 6

. 2 8 SurrogateRecovery(%) C13-1234678 HeptaCDD * % 93 2209116 C13-1234678 HeptaCDF** % 101 2209116 C13-123478HexaCDD % 104 2209116 C13-123478HexaCDF % 99 2209116 C13-1234789 HeptaCDF % 86 2209116 C13-123678HexaCDD % 96 2209116 C13-123678HexaCDF % 95 2209116 C13-12378 PentaCDD % 74 2209116 C13-12378 PentaCDF % 68 2209116 C13-123789HexaCDF % 88 2209116 C13-23478 PentaCDF % 107 2209116 C13-2378 TetraCDD % 50 2209116 C13-2378 TetraCDF % 45 2209116 C13-Octachlorodibenzo-p-Dioxin % 75 2209116 Cl37-2378 TetraCDD % 103 2209116

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch

* CDD = Chloro Dibenzo-p-Dioxin, ** CDF= Chloro Dibenzo-p-Furan TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds

Page 7 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### DIOXINS AND FURANS BY HRMS (STACKSAMPLING TRAIN)

Maxxam ID G K 9 3 7 7 Sampling Date 2010/06/29 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s RUN 1-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
2,3,7,8-Tetra CDD * pg 2.1 U 2.1 30 1.00 2.10 2209116 1,2,3,7,8-Penta CDD pg 1.6 U 1.6 30 1.00 1.60 2209116 1,2,3,4,7,8-HexaCDD pg 1.6 U 1.6 30 0.100 0.160 2209116 1,2,3,6,7,8-HexaCDD pg 1.6 U 1.6 30 0.100 0.160 2209116 1,2,3,7,8,9-HexaCDD pg 1.5 U 1.5 30 0.100 0.150 2209116 1,2,3,4,6,7,8-Hepta CDD pg 3.4 J 1.9 30 0.0100 0.0340 2209116 1,2,3,4,6,7,8,9-Octa CDD pg 19.9 J 4.0 300 0.000300 0.00597 2209116 Total Tetra CDD pg 2.1 U 2.1 30 2209116 Total Penta CDD pg 11 U ( 1 ) 11 30 2209116 Total HexaCDD pg 11 U ( 1 ) 11 30 2209116 Total Hepta CDD pg 3.4 J 1.9 30 2209116 2,3,7,8-Tetra CDF ** pg 4.6 J 1.7 30 0.100 0.460 2209116 1,2,3,7,8-Penta CDF pg 1.8 U 1.8 30 0.0300 0.0540 2209116 2,3,4,7,8-Penta CDF pg 2.9 J 1.7 30 0.300 0.870 2209116 1,2,3,4,7,8-Hexa CDF pg 1.6 U 1.6 30 0.100 0.160 2209116 1,2,3,6,7,8-Hexa CDF pg 1.5 U 1.5 30 0.100 0.150 2209116 2,3,4,6,7,8-Hexa CDF pg 1.8 U 1.8 30 0.100 0.180 2209116 1,2,3,7,8,9-Hexa CDF pg 1.8 U 1.8 30 0.100 0.180 2209116 1,2,3,4,6,7,8-Hepta CDF pg 1.6 U 1.6 30 0.0100 0.0160 2209116 1,2,3,4,7,8,9-Hepta CDF pg 2.0 U 2.0 30 0.0100 0.0200 2209116 1,2,3,4,6,7,8,9-Octa CDF pg 3.6 U 3.6 300 0.000300 0.00108 2209116 Total Tetra CDF pg 4.6 J 1.7 30 2209116 Total Penta CDF pg 2.9 J 1.7 30 2209116 Total HexaCDF pg 1.7 U 1.7 30 2209116 Total Hepta CDF pg 1.8 U 1.8 30 2209116 TOTAL TOXIC EQUIVALENCY pg 6

. 3 0

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch

* CDD = Chloro Dibenzo-p-Dioxin, ** CDF= Chloro Dibenzo-p-Furan TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds ( 1 ) EMPC /

NDR - Peakdetected does not meet ratio criteria and has resulted in an elevated detection limit.

Page 8 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### DIOXINS AND FURANS BY HRMS (STACKSAMPLING TRAIN)

Maxxam ID G K 9 3 7 7 Sampling Date 2010/06/29 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s RUN 1-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
SurrogateRecovery(%) C13-1234678 HeptaCDD * % 89 2209116 C13-1234678 HeptaCDF** % 93 2209116 C13-123478HexaCDD % 94 2209116 C13-123478HexaCDF % 99 2209116 C13-1234789 HeptaCDF % 92 2209116 C13-123678HexaCDD % 100 2209116 C13-123678HexaCDF % 97 2209116 C13-12378 PentaCDD % 84 2209116 C13-12378 PentaCDF % 86 2209116 C13-123789HexaCDF % 93 2209116 C13-23478 PentaCDF % 99 2209116 C13-2378 TetraCDD % 86 2209116 C13-2378 TetraCDF % 82 2209116 C13-Octachlorodibenzo-p-Dioxin % 75 2209116 Cl37-2378 TetraCDD % 100 2209116

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch

* CDD = Chloro Dibenzo-p-Dioxin, ** CDF= Chloro Dibenzo-p-Furan TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds

Page 9 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### DIOXINS AND FURANS BY HRMS (STACKSAMPLING TRAIN)

Maxxam ID G K 9 3 7 8 Sampling Date 2010/06/30 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s RUN 2-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
2,3,7,8-Tetra CDD * pg 1.6 U 1.6 30 1.00 1.60 2209116 1,2,3,7,8-Penta CDD pg 2.1 U 2.1 30 1.00 2.10 2209116 1,2,3,4,7,8-HexaCDD pg 1.8 U 1.8 30 0.100 0.180 2209116 1,2,3,6,7,8-HexaCDD pg 1.8 U 1.8 30 0.100 0.180 2209116 1,2,3,7,8,9-HexaCDD pg 1.7 U 1.7 30 0.100 0.170 2209116 1,2,3,4,6,7,8-Hepta CDD pg 2.7 U ( 1 ) 2.7 30 0.0100 0.0270 2209116 1,2,3,4,6,7,8,9-Octa CDD pg 21.2 J 3.8 300 0.000300 0.00636 2209116 Total Tetra CDD pg 3.3 J 1.6 30 2209116 Total Penta CDD pg 19 U ( 1 ) 19 30 2209116 Total HexaCDD pg 7.2 U ( 1 ) 7.2 30 2209116 Total Hepta CDD pg 3.0 J 1.5 30 2209116 2,3,7,8-Tetra CDF ** pg 8.2 J 1.8 30 0.100 0.820 2209116 1,2,3,7,8-Penta CDF pg 1.6 U 1.6 30 0.0300 0.0480 2209116 2,3,4,7,8-Penta CDF pg 3.6 J 1.5 30 0.300 1.08 2209116 1,2,3,4,7,8-Hexa CDF pg 1.7 U 1.7 30 0.100 0.170 2209116 1,2,3,6,7,8-Hexa CDF pg 1.6 U 1.6 30 0.100 0.160 2209116 2,3,4,6,7,8-Hexa CDF pg 1.8 U 1.8 30 0.100 0.180 2209116 1,2,3,7,8,9-Hexa CDF pg 1.9 U 1.9 30 0.100 0.190 2209116 1,2,3,4,6,7,8-Hepta CDF pg 3.1 U ( 1 ) 3.1 30 0.0100 0.0310 2209116 1,2,3,4,7,8,9-Hepta CDF pg 2.0 U 2.0 30 0.0100 0.0200 2209116 1,2,3,4,6,7,8,9-Octa CDF pg 3.5 U 3.5 300 0.000300 0.00105 2209116 Total Tetra CDF pg 13.3 J 1.8 30 2209116 Total Penta CDF pg 3.6 J 1.5 30 2209116 Total HexaCDF pg 1.7 U ( 1 ) 1.7 30 2209116 Total Hepta CDF pg 3.4 U ( 1 ) 3.4 30 2209116 TOTAL TOXIC EQUIVALENCY pg 6

. 9 6

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch

* CDD = Chloro Dibenzo-p-Dioxin, ** CDF= Chloro Dibenzo-p-Furan TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds ( 1 ) EMPC /

NDR - Peakdetected does not meet ratio criteria and has resulted in an elevated detection limit.

Page 10 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### DIOXINS AND FURANS BY HRMS (STACKSAMPLING TRAIN)

Maxxam ID G K 9 3 7 8 Sampling Date 2010/06/30 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s RUN 2-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
SurrogateRecovery(%) C13-1234678 HeptaCDD * % 94 2209116 C13-1234678 HeptaCDF** % 95 2209116 C13-123478HexaCDD % 99 2209116 C13-123478HexaCDF % 99 2209116 C13-1234789 HeptaCDF % 93 2209116 C13-123678HexaCDD % 101 2209116 C13-123678HexaCDF % 97 2209116 C13-12378 PentaCDD % 88 2209116 C13-12378 PentaCDF % 88 2209116 C13-123789HexaCDF % 93 2209116 C13-23478 PentaCDF % 97 2209116 C13-2378 TetraCDD % 89 2209116 C13-2378 TetraCDF % 86 2209116 C13-Octachlorodibenzo-p-Dioxin % 85 2209116 Cl37-2378 TetraCDD % 99 2209116

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch

* CDD = Chloro Dibenzo-p-Dioxin, ** CDF= Chloro Dibenzo-p-Furan TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds

Page 11 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### DIOXINS AND FURANS BY HRMS (STACKSAMPLING TRAIN)

Maxxam ID G K 9 3 7 9 Sampling Date 2010/07/01 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s RUN 3-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23
2,3,7,8-Tetra CDD * pg 1.7 U 1.7 30 1.00 1.70 2209116 1,2,3,7,8-Penta CDD pg 1.9 U 1.9 30 1.00 1.90 2209116 1,2,3,4,7,8-HexaCDD pg 2.1 U 2.1 30 0.100 0.210 2209116 1,2,3,6,7,8-HexaCDD pg 2.1 U 2.1 30 0.100 0.210 2209116 1,2,3,7,8,9-HexaCDD pg 1.9 U 1.9 30 0.100 0.190 2209116 1,2,3,4,6,7,8-Hepta CDD pg 2.9 U ( 1 ) 2.9 30 0.0100 0.0290 2209116 1,2,3,4,6,7,8,9-Octa CDD pg 19.9 J 4.2 300 0.000300 0.00597 2209116 Total Tetra CDD pg 3.0 U ( 2 ) 3.0 30 2209116 Total Penta CDD pg 11.2 J 1.9 30 2209116 Total HexaCDD pg 9.7 U ( 2 ) 9.7 30 2209116 Total Hepta CDD pg 2.9 U ( 1 ) 2.9 30 2209116 2,3,7,8-Tetra CDF ** pg 4.9 J 2.1 30 0.100 0.490 2209116 1,2,3,7,8-Penta CDF pg 2.0 U 2.0 30 0.0300 0.0600 2209116 2,3,4,7,8-Penta CDF pg 2.3 J 1.9 30 0.300 0.690 2209116 1,2,3,4,7,8-Hexa CDF pg 1.6 U 1.6 30 0.100 0.160 2209116 1,2,3,6,7,8-Hexa CDF pg 1.5 U 1.5 30 0.100 0.150 2209116 2,3,4,6,7,8-Hexa CDF pg 1.7 U 1.7 30 0.100 0.170 2209116 1,2,3,7,8,9-Hexa CDF pg 1.8 U 1.8 30 0.100 0.180 2209116 1,2,3,4,6,7,8-Hepta CDF pg 2.3 U ( 2 ) 2.3 30 0.0100 0.0230 2209116 1,2,3,4,7,8,9-Hepta CDF pg 2.0 U 2.0 30 0.0100 0.0200 2209116 1,2,3,4,6,7,8,9-Octa CDF pg 4.0 U 4.0 300 0.000300 0.00120 2209116 Total Tetra CDF pg 4.9 J 2.1 30 2209116 Total Penta CDF pg 2.3 J 2.0 30 2209116 Total HexaCDF pg 1.6 U 1.6 30 2209116 Total Hepta CDF pg 2.5 U ( 2 ) 2.5 30 2209116

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch

* CDD = Chloro Dibenzo-p-Dioxin, ** CDF= Chloro Dibenzo-p-Furan TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds ( 1 ) RT> 2 seconds - PCDD/DF analysis - Peakdetected exceeds expected retention time (from monitoring ion) by greaterthan 2 seconds. ( 2 ) EMPC /

NDR - Peakdetected does not meet ratio criteria and has resulted in an elevated detection limit.

Page 12 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### DIOXINS AND FURANS BY HRMS (STACKSAMPLING TRAIN)

Maxxam ID G K 9 3 7 9 Sampling Date 2010/07/01 18:00 COC Number n/a TOXICEQUIVALENCY #of U n i t s RUN 3-DTE EDL RDL TEF (2005 WHO) TEQ(DL) I s o m e r s QC Batch MONROE-M23

TOTAL TOXIC EQUIVALENCY pg 6

. 1 9 SurrogateRecovery(%) C13-1234678 HeptaCDD * % 87 2209116 C13-1234678 HeptaCDF** % 92 2209116 C13-123478HexaCDD % 95 2209116 C13-123478HexaCDF % 96 2209116 C13-1234789 HeptaCDF % 90 2209116 C13-123678HexaCDD % 98 2209116 C13-123678HexaCDF % 94 2209116 C13-12378 PentaCDD % 84 2209116 C13-12378 PentaCDF % 85 2209116 C13-123789HexaCDF % 87 2209116 C13-23478 PentaCDF % 97 2209116 C13-2378 TetraCDD % 81 2209116 C13-2378 TetraCDF % 77 2209116 C13-Octachlorodibenzo-p-Dioxin % 79 2209116 Cl37-2378 TetraCDD % 98 2209116

N/A= Not Applicable RDL = Reportable Detection Limit EDL = Estimated Detection Limit QC Batch = QualityControl Batch

* CDD = Chloro Dibenzo-p-Dioxin, ** CDF= Chloro Dibenzo-p-Furan TEF = ToxicEquivalencyFactor, TEQ = ToxicEquivalencyQuotient, The Total ToxicEquivalency(TEQ) value reported is the sum ofToxicEquivalent Quotients forthe congeners tested. WHO(2005): The 2005 World Health Organization, Human and Mammalian ToxicEquivalencyFactors forDioxins and Dioxin-like Compounds

Page 13 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING



### Test Summary

Maxxam ID GK9376 Collected 2010/06/29 Sample ID F.BLANK-DTE MONROE-M23 Shipped Matrix Stack Sampling Train Received 2010/07/08

TestDescription Instrumentation Batch Extracted Analyzed Analyst Dioxins/Furans in Air(Method 23) HRMS/MS 2209116 2010/07/10 2010/07/20 KKS PCB Congeners in Air(1668A) HRMS/MSEC 2202679 2010/07/10 2010/07/26 BY

Maxxam ID GK9377 Collected 2010/06/29 Sample ID RUN 1-DTE MONROE-M23 Shipped Matrix Stack Sampling Train Received 2010/07/08

TestDescription Instrumentation Batch Extracted Analyzed Analyst Dioxins/Furans in Air(Method 23) HRMS/MS 2209116 2010/07/10 2010/07/20 KKS PCB Congeners in Air(1668A) HRMS/MSEC 2202679 2010/07/10 2010/07/26 BY

Maxxam ID GK9378 Collected 2010/06/30 Sample ID RUN 2-DTE MONROE-M23 Shipped Matrix Stack Sampling Train Received 2010/07/08

TestDescription Instrumentation Batch Extracted Analyzed Analyst Dioxins/Furans in Air(Method 23) HRMS/MS 2209116 2010/07/10 2010/07/20 KKS PCB Congeners in Air(1668A) HRMS/MSEC 2202679 2010/07/10 2010/07/26 BY

Maxxam ID GK9379 Collected 2010/07/01 Sample ID RUN 3-DTE MONROE-M23 Shipped Matrix Stack Sampling Train Received 2010/07/08

TestDescription Instrumentation Batch Extracted Analyzed Analyst Dioxins/Furans in Air(Method 23) HRMS/MS 2209116 2010/07/10 2010/07/20 KKS PCB Congeners in Air(1668A) HRMS/MSEC 2202679 2010/07/10 2010/07/26 BY

Page 14 of 19

### BT Environmental Consulting Maxxam Job #: B089667 Report Date: 2010/07/28 Projectname: DTE MONROE ICRTESTING

GENERAL COMMENTS

Results relateonlyto theitems tested.

Page 15 of 19

### BT Environmental Consulting Attention: Tom Snyder Client Project #: P.O. #: Projectname: DTE MONROE ICRTESTING 

### Quality AssuranceReport Maxxam Job Number: GB089667
QA/QC Date Batch Analyzed Num Init QC Type Parameter yyyy/mm/dd Value %Recovery Units QC Limits 2202679 BY Spiked Blank C13-233'44'55'-HeptaCB-(189) 2010/07/17 136 % 20 - 150

Spiked BlankDUP C13-233'44'55'-HeptaCB-(189) 2010/07/17 125 % 20 - 150 Spiked Blank C13-233'44'5-HexaCB-(156) 2010/07/17 121 % 20 - 150 Spiked BlankDUP C13-233'44'5-HexaCB-(156) 2010/07/17 111 % 20 - 150 Spiked Blank C13-233'44'5'-HexaCB-(157) 2010/07/17 121 % 20 - 150 Spiked BlankDUP C13-233'44'5'-HexaCB-(157) 2010/07/17 111 % 20 - 150 Spiked Blank C13-233'44'-PentaCB-(105) 2010/07/17 131 % 20 - 150 Spiked BlankDUP C13-233'44'-PentaCB-(105) 2010/07/17 120 % 20 - 150 Spiked Blank C13-23'44'55'-HexaCB-(167) 2010/07/17 122 % 20 - 150 Spiked BlankDUP C13-23'44'55'-HexaCB-(167) 2010/07/17 113 % 20 - 150 Spiked Blank C13-2344'5-PentaCB-(114) 2010/07/17 126 % 20 - 150 Spiked BlankDUP C13-2344'5-PentaCB-(114) 2010/07/17 113 % 20 - 150 Spiked Blank C13-23'44'5-PentaCB-(118) 2010/07/17 129 % 20 - 150 Spiked BlankDUP C13-23'44'5-PentaCB-(118) 2010/07/17 119 % 20 - 150 Spiked Blank C13-2'344'5-PentaCB-(123) 2010/07/17 129 % 20 - 150 Spiked BlankDUP C13-2'344'5-PentaCB-(123) 2010/07/17 117 % 20 - 150 Spiked Blank C13-33'44'55'-HexaCB-(169) 2010/07/17 125 % 20 - 150 Spiked BlankDUP C13-33'44'55'-HexaCB-(169) 2010/07/17 116 % 20 - 150 Spiked Blank C13-33'44'5-PentaCB-(126) 2010/07/17 136 % 20 - 150 Spiked BlankDUP C13-33'44'5-PentaCB-(126) 2010/07/17 128 % 20 - 150 Spiked Blank C13-33'44'-TetraCB-(77) 2010/07/17 119 % 20 - 150 Spiked BlankDUP C13-33'44'-TetraCB-(77) 2010/07/17 109 % 20 - 150 Spiked Blank C13-344'5-TetraCB-(81) 2010/07/17 118 % 20 - 150 Spiked BlankDUP C13-344'5-TetraCB-(81) 2010/07/17 107 % 20 - 150 Spiked Blank 33'44'-TetraCB-(77) 2010/07/17 111 % N/A Spiked BlankDUP 33'44'-TetraCB-(77) 2010/07/17 112 % N/A RPD 33'44'-TetraCB-(77) 2010/07/17 0.9 % 20 Spiked Blank 344'5-TetraCB-(81) 2010/07/17 111 % N/A Spiked BlankDUP 344'5-TetraCB-(81) 2010/07/17 111 % N/A RPD 344'5-TetraCB-(81) 2010/07/17 0 % 20 Spiked Blank 233'44'-PentaCB-(105) 2010/07/17 105 % N/A Spiked BlankDUP 233'44'-PentaCB-(105) 2010/07/17 108 % N/A RPD 233'44'-PentaCB-(105) 2010/07/17 2.8 % 20 Spiked Blank 2344'5-PentaCB-(114) 2010/07/17 107 % N/A Spiked BlankDUP 2344'5-PentaCB-(114) 2010/07/17 110 % N/A RPD 2344'5-PentaCB-(114) 2010/07/17 2.8 % 20 Spiked Blank 23'44'5-PentaCB-(118) 2010/07/17 105 % N/A Spiked BlankDUP 23'44'5-PentaCB-(118) 2010/07/17 106 % N/A RPD 23'44'5-PentaCB-(118) 2010/07/17 0.9 % 20 Spiked Blank 23'44'5'-PentaCB-(123) 2010/07/17 108 % N/A Spiked BlankDUP 23'44'5'-PentaCB-(123) 2010/07/17 109 % N/A RPD 23'44'5'-PentaCB-(123) 2010/07/17 0.9 % 20 Spiked Blank 33'44'5-PentaCB-(126) 2010/07/17 109 % N/A Spiked BlankDUP 33'44'5-PentaCB-(126) 2010/07/17 109 % N/A RPD 33'44'5-PentaCB-(126) 2010/07/17 0 % 20 Spiked Blank HexaCB-(156)+(157) 2010/07/17 107 % N/A Spiked BlankDUP HexaCB-(156)+(157) 2010/07/17 108 % N/A RPD HexaCB-(156)+(157) 2010/07/17 0.9 % 20 Spiked Blank 23'44'55'-HexaCB-(167) 2010/07/17 105 % N/A Spiked BlankDUP 23'44'55'-HexaCB-(167) 2010/07/17 106 % N/A RPD 23'44'55'-HexaCB-(167) 2010/07/17 0.9 % 20 Spiked Blank 33'44'55'-HexaCB-(169) 2010/07/17 107 % N/A Spiked BlankDUP 33'44'55'-HexaCB-(169) 2010/07/17 107 % N/A RPD 33'44'55'-HexaCB-(169) 2010/07/17 0 % 20 Spiked Blank 233'44'55'-HeptaCB-(189) 2010/07/17 102 % N/A

Maxxam Analytics International Corporation o/a Maxxam Analytics Burlington:5555 North Service Road, Burlington, Ontario L7L 5H7 Telephone(905) 332-8788 Fax(905) 332-9169 Page 16 of 19

### BT Environmental Consulting Attention: Tom Snyder Client Project #: P.O. #: Projectname: DTE MONROE ICRTESTING 

### Quality AssuranceReport

(Continued) Maxxam Job Number: GB089667
QA/QC Date Batch Analyzed Num Init QC Type Parameter yyyy/mm/dd Value %Recovery Units QC Limits 2202679 BY Spiked BlankDUP 233'44'55'-HeptaCB-(189) 2010/07/17 102 % N/A

RPD 233'44'55'-HeptaCB-(189) 2010/07/17 0 % N/A Method Blank C13-233'44'55'-HeptaCB-(189) 2010/07/17 122 % 20 - 150

C13-233'44'5-HexaCB-(156) 2010/07/17 109 % 20 - 150 C13-233'44'5'-HexaCB-(157) 2010/07/17 109 % 20 - 150 C13-233'44'-PentaCB-(105) 2010/07/17 132 % 20 - 150 C13-23'44'55'-HexaCB-(167) 2010/07/17 111 % 20 - 150 C13-2344'5-PentaCB-(114) 2010/07/17 125 % 20 - 150 C13-23'44'5-PentaCB-(118) 2010/07/17 130 % 20 - 150 C13-2'344'5-PentaCB-(123) 2010/07/17 127 % 20 - 150 C13-33'44'55'-HexaCB-(169) 2010/07/17 110 % 20 - 150 C13-33'44'5-PentaCB-(126) 2010/07/17 129 % 20 - 150 C13-33'44'-TetraCB-(77) 2010/07/17 126 % 20 - 150 C13-344'5-TetraCB-(81) 2010/07/17 121 % 20 - 150 33'44'-TetraCB-(77) 2010/07/17 0.0022 U, EDL=0.0022 ( 1 ) ng 344'5-TetraCB-(81) 2010/07/17 0.0016 U, EDL=0.0016 ng 233'44'-PentaCB-(105) 2010/07/17 0.0049 J, EDL=0.0026 ng 2344'5-PentaCB-(114) 2010/07/17 0.0026 U, EDL=0.0026 ng 23'44'5-PentaCB-(118) 2010/07/17 0.012 U, EDL=0.012 ( 1 ) ng 23'44'5'-PentaCB-(123) 2010/07/17 0.0026 U, EDL=0.0026 ng 33'44'5-PentaCB-(126) 2010/07/17 0.0026 U, EDL=0.0026 ng HexaCB-(156)+(157) 2010/07/17 0.0049 U, EDL=0.0049 ( 1 ) ng 23'44'55'-HexaCB-(167) 2010/07/17 0.0027 U, EDL=0.0027 ( 1 ) ng 33'44'55'-HexaCB-(169) 2010/07/17 0.0013 U, EDL=0.0013 ( 1 ) ng 233'44'55'-HeptaCB-(189) 2010/07/17 0.0022 U, EDL=0.0022 ng 2209116 KKS Spiked Blank C13-1234678HeptaCDD 2010/07/17 102 % 25 - 130

Spiked BlankDUP C13-1234678HeptaCDD 2010/07/17 102 % 25 - 130 Spiked Blank C13-1234678HeptaCDF 2010/07/17 100 % 25 - 130 Spiked BlankDUP C13-1234678HeptaCDF 2010/07/17 98 % 25 - 130 Spiked Blank C13-123678HexaCDD 2010/07/17 92 % 40 - 130 Spiked BlankDUP C13-123678HexaCDD 2010/07/17 91 % 40 - 130 Spiked Blank C13-123678HexaCDF 2010/07/17 87 % 40 - 130 Spiked BlankDUP C13-123678HexaCDF 2010/07/17 82 % 40 - 130 Spiked Blank C13-12378 PentaCDD 2010/07/17 79 % 40 - 130 Spiked BlankDUP C13-12378 PentaCDD 2010/07/17 73 % 40 - 130 Spiked Blank C13-12378 PentaCDF 2010/07/17 73 % 40 - 130 Spiked BlankDUP C13-12378 PentaCDF 2010/07/17 65 % 40 - 130 Spiked Blank C13-123789HexaCDF 2010/07/17 84 % 40 - 130 Spiked BlankDUP C13-123789HexaCDF 2010/07/17 80 % 40 - 130 Spiked Blank C13-2378 TetraCDD 2010/07/17 55 % 40 - 130 Spiked BlankDUP C13-2378 TetraCDD 2010/07/17 45 % 40 - 130 Spiked Blank C13-2378 TetraCDF 2010/07/17 55 % 40 - 130 Spiked BlankDUP C13-2378 TetraCDF 2010/07/17 42 % 40 - 130 Spiked Blank C13-Octachlorodibenzo-p-Dioxin 2010/07/17 100 % 25 - 130 Spiked BlankDUP C13-Octachlorodibenzo-p-Dioxin 2010/07/17 101 % 25 - 130 Spiked Blank 2,3,7,8-Tetra CDD 2010/07/17 105 % 80 - 140 Spiked BlankDUP 2,3,7,8-Tetra CDD 2010/07/17 108 % 80 - 140 RPD 2,3,7,8-Tetra CDD 2010/07/17 NC % 20 Spiked Blank 1,2,3,7,8-Penta CDD 2010/07/17 108 % 80 - 140 Spiked BlankDUP 1,2,3,7,8-Penta CDD 2010/07/17 109 % 80 - 140 RPD 1,2,3,7,8-Penta CDD 2010/07/17 NC % 20 Spiked Blank 1,2,3,4,7,8-HexaCDD 2010/07/17 106 % 80 - 140 Spiked BlankDUP 1,2,3,4,7,8-HexaCDD 2010/07/17 106 % 80 - 140 RPD 1,2,3,4,7,8-HexaCDD 2010/07/17 NC % 20 Spiked Blank 1,2,3,6,7,8-HexaCDD 2010/07/17 102 % 80 - 140

Maxxam Analytics International Corporation o/a Maxxam Analytics Burlington:5555 North Service Road, Burlington, Ontario L7L 5H7 Telephone(905) 332-8788 Fax(905) 332-9169 Page 17 of 19

### BT Environmental Consulting Attention: Tom Snyder Client Project #: P.O. #: Projectname: DTE MONROE ICRTESTING 

### Quality AssuranceReport

(Continued) Maxxam Job Number: GB089667
QA/QC Date Batch Analyzed Num Init QC Type Parameter yyyy/mm/dd Value %Recovery Units QC Limits 2209116 KKS Spiked BlankDUP 1,2,3,6,7,8-HexaCDD 2010/07/17 101 % 80 - 140

RPD 1,2,3,6,7,8-HexaCDD 2010/07/17 NC % 20 Spiked Blank 1,2,3,7,8,9-HexaCDD 2010/07/17 105 % 80 - 140 Spiked BlankDUP 1,2,3,7,8,9-HexaCDD 2010/07/17 108 % 80 - 140 RPD 1,2,3,7,8,9-HexaCDD 2010/07/17 NC % 20 Spiked Blank 1,2,3,4,6,7,8-Hepta CDD 2010/07/17 86 % 80 - 140 Spiked BlankDUP 1,2,3,4,6,7,8-Hepta CDD 2010/07/17 87 % 80 - 140 RPD 1,2,3,4,6,7,8-Hepta CDD 2010/07/17 NC % 20 Spiked Blank 1,2,3,4,6,7,8,9-Octa CDD 2010/07/17 101 % 80 - 140 Spiked BlankDUP 1,2,3,4,6,7,8,9-Octa CDD 2010/07/17 103 % 80 - 140 RPD 1,2,3,4,6,7,8,9-Octa CDD 2010/07/17 NC % 20 Spiked Blank 2,3,7,8-Tetra CDF 2010/07/17 103 % 80 - 140 Spiked BlankDUP 2,3,7,8-Tetra CDF 2010/07/17 107 % 80 - 140 RPD 2,3,7,8-Tetra CDF 2010/07/17 NC % 20 Spiked Blank 1,2,3,7,8-Penta CDF 2010/07/17 107 % 80 - 140 Spiked BlankDUP 1,2,3,7,8-Penta CDF 2010/07/17 105 % 80 - 140 RPD 1,2,3,7,8-Penta CDF 2010/07/17 NC % 20 Spiked Blank 2,3,4,7,8-Penta CDF 2010/07/17 115 % 80 - 140 Spiked BlankDUP 2,3,4,7,8-Penta CDF 2010/07/17 113 % 80 - 140 RPD 2,3,4,7,8-Penta CDF 2010/07/17 NC % 20 Spiked Blank 1,2,3,4,7,8-Hexa CDF 2010/07/17 105 % 80 - 140 Spiked BlankDUP 1,2,3,4,7,8-Hexa CDF 2010/07/17 107 % 80 - 140 RPD 1,2,3,4,7,8-Hexa CDF 2010/07/17 NC % 20 Spiked Blank 1,2,3,6,7,8-Hexa CDF 2010/07/17 105 % 80 - 140 Spiked BlankDUP 1,2,3,6,7,8-Hexa CDF 2010/07/17 108 % 80 - 140 RPD 1,2,3,6,7,8-Hexa CDF 2010/07/17 NC % 20 Spiked Blank 2,3,4,6,7,8-Hexa CDF 2010/07/17 113 % 80 - 140 Spiked BlankDUP 2,3,4,6,7,8-Hexa CDF 2010/07/17 116 % 80 - 140 RPD 2,3,4,6,7,8-Hexa CDF 2010/07/17 NC % 20 Spiked Blank 1,2,3,7,8,9-Hexa CDF 2010/07/17 109 % 80 - 140 Spiked BlankDUP 1,2,3,7,8,9-Hexa CDF 2010/07/17 112 % 80 - 140 RPD 1,2,3,7,8,9-Hexa CDF 2010/07/17 NC % 20 Spiked Blank 1,2,3,4,6,7,8-Hepta CDF 2010/07/17 95 % 80 - 140 Spiked BlankDUP 1,2,3,4,6,7,8-Hepta CDF 2010/07/17 99 % 80 - 140 RPD 1,2,3,4,6,7,8-Hepta CDF 2010/07/17 NC % 20 Spiked Blank 1,2,3,4,7,8,9-Hepta CDF 2010/07/17 94 % 80 - 140 Spiked BlankDUP 1,2,3,4,7,8,9-Hepta CDF 2010/07/17 97 % 80 - 140 RPD 1,2,3,4,7,8,9-Hepta CDF 2010/07/17 NC % 20 Spiked Blank 1,2,3,4,6,7,8,9-Octa CDF 2010/07/17 96 % 80 - 140 Spiked BlankDUP 1,2,3,4,6,7,8,9-Octa CDF 2010/07/17 97 % 80 - 140 RPD 1,2,3,4,6,7,8,9-Octa CDF 2010/07/17 NC % 20 Method Blank C13-1234678HeptaCDD 2010/07/18 101 % 25 - 130

C13-1234678HeptaCDF 2010/07/18 98 % 25 - 130 C13-123678HexaCDD 2010/07/18 92 % 40 - 130 C13-123678HexaCDF 2010/07/18 85 % 40 - 130 C13-12378 PentaCDD 2010/07/18 84 % 40 - 130 C13-12378 PentaCDF 2010/07/18 81 % 40 - 130 C13-123789HexaCDF 2010/07/18 84 % 40 - 130 C13-2378 TetraCDD 2010/07/18 69 % 40 - 130 C13-2378 TetraCDF 2010/07/18 69 % 40 - 130 C13-Octachlorodibenzo-p-Dioxin 2010/07/18 100 % 25 - 130 2,3,7,8-Tetra CDD 2010/07/18 1.8 U, EDL=1.8 pg 1,2,3,7,8-Penta CDD 2010/07/18 1.6 U, EDL=1.6 pg 1,2,3,4,7,8-HexaCDD 2010/07/18 1.7 U, EDL=1.7 pg 1,2,3,6,7,8-HexaCDD 2010/07/18 1.7 U, EDL=1.7 pg

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### BT Environmental Consulting Attention: Tom Snyder Client Project #: P.O. #: Projectname: DTE MONROE ICRTESTING 

### Quality AssuranceReport

(Continued) Maxxam Job Number: GB089667
QA/QC Date Batch Analyzed Num Init QC Type Parameter yyyy/mm/dd Value %Recovery Units QC Limits 2209116 KKS Method Blank 1,2,3,7,8,9-HexaCDD 2010/07/18 1.5 U, EDL=1.5 pg 1,2,3,4,6,7,8-Hepta CDD 2010/07/18 7.2 J, EDL=1.8 pg 1,2,3,4,6,7,8,9-Octa CDD 2010/07/18 50.8 J, EDL=3.8 pg Total Tetra CDD 2010/07/18 3.7 U, EDL=3.7 ( 1 ) pg Total Penta CDD 2010/07/18 3.1 U, EDL=3.1 ( 1 ) pg Total HexaCDD 2010/07/18 8.1 U, EDL=8.1 ( 1 ) pg Total Hepta CDD 2010/07/18 11.6 J, EDL=1.8 pg 2,3,7,8-Tetra CDF 2010/07/18 1.7 U, EDL=1.7 pg 1,2,3,7,8-Penta CDF 2010/07/18 1.9 U, EDL=1.9 pg 2,3,4,7,8-Penta CDF 2010/07/18 1.8 U, EDL=1.8 pg 1,2,3,4,7,8-Hexa CDF 2010/07/18 1.6 U, EDL=1.6 pg 1,2,3,6,7,8-Hexa CDF 2010/07/18 1.5 U, EDL=1.5 pg 2,3,4,6,7,8-Hexa CDF 2010/07/18 1.7 U, EDL=1.7 pg 1,2,3,7,8,9-Hexa CDF 2010/07/18 1.8 U, EDL=1.8 pg 1,2,3,4,6,7,8-Hepta CDF 2010/07/18 1.4 U, EDL=1.4 pg 1,2,3,4,7,8,9-Hepta CDF 2010/07/18 1.7 U, EDL=1.7 pg 1,2,3,4,6,7,8,9-Octa CDF 2010/07/18 3.1 U, EDL=3.1 pg Total Tetra CDF 2010/07/18 1.7 U, EDL=1.7 pg Total Penta CDF 2010/07/18 1.9 U, EDL=1.9 pg Total HexaCDF 2010/07/18 1.6 U, EDL=1.6 pg Total Hepta CDF 2010/07/18 1.5 U, EDL=1.5 pg Duplicate: Paired analysis of a separate portion of the same sample. Used to evaluate the variance in the measurement. Spiked Blank: Ablankmatrixto which a known amountofthe analyte has been added. Used to evaluate analyte recovery. Method Blank: Ablankmatrixcontaining all reagents used in the analytical procedure. Used to identifylaboratorycontamination. Surrogate: Apure orisotopicallylabeled compound whose behaviormirrors the analytes ofinterest. Used to evaluate extraction efficiency. NC (RPD): The RPD was not calculated. The level ofanalyte detected in the parent sample and its duplicate was not sufficientlysignificant to permit a reliable calculation. ( 1 ) EMPC /

NDR - Peakdetected does not meet ratio criteria and has resulted in an elevated detection limit.

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