Appendix C. Supporting Information for Assessment of Negligibility

Transcription

1 Clean Harbors Canada Inc. Emission Summary and Dispersion Modelling Report Appendix C Supporting Information for Assessment of Negligibility (25) November 2013

2 Clean Harbors Canada Inc. Emission Summary and Dispersion Modelling Report APPENDIX C Supporting Information for Assessment of Negligibility CLEAN HARBORS Sources were screened for negligibility using the following screening protocols listed in the ESDM Procedure Document: Combustion of natural gas and propane (Section 7.1.1) Screening out sources that emit contaminants in insignificant amounts (Table B-3) Generalized guidance to identifying Insignificant of Significant Sources and Contaminants (Section 7.3) Sources that are insignificant relative to total emissions (Section 7.2.2) The results of the screening are discussed in greater detail in the following text. Combustion of Natural Gas and Propane: As per Section of the ESDM Procedure Document contaminants other than NOx are generally considered negligible from this type of source and only NOx has been assessed. Sources ANC-01 and ANC-02 have not been included in the NOx modelling because they are small boilers that represent less than 5 percent of the total Facility emissions, as per Section of the ESDM Procedure Document. Screening Out Sources that Emit Contaminants in Insignificant Amounts Table B-3 of the ESDM Procedure Document lists sources that can be considered to be insignificant. The following sources at the Facility are listed in Table B-3: Small maintenance activities (Source ANC-03) Generalized Guidance to Identifying Insignificant or Significant Sources and Contaminants The following sources do not exhaust contaminants to atmosphere and have been considered to be insignificant sources of emissions: Lab-13 Lab-14 T111-T (25) November 2013 A-1

3 Clean Harbors Canada Inc. Emission Summary and Dispersion Modelling Report Appendix D Dispersion Modelling Input and Output Files (Electronic) (25) November 2013

4 Clean Harbors Canada Inc. Emission Summary and Dispersion Modelling Report Appendix E Excerpts from Annual Incinerator Emissions Testing Reports ( ) (25) November 2013

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13 Report Annual Compliance Emission Testing Program at the Clean Harbors Sarnia Incineration Facility (2010) A Report to: Attention: Clean Harbors Canada Inc Telfer Road Corunna, Ontario N0N 1G0 Mr. Dale Leonard Facility Maintenance Manager Tel: (519) Fax: (519) Submitted by: Tina Sanderson, B.Sc. Senior Specialist, Emission Testing Tel: (905) , Ext. 522 Fax: (905) tsanderson@ortech.ca Report No.: pages, 30 Appendices Date: February 15, Mississauga Sarnia Windsor 804 Southdown Road, Mississauga, ON Canada L5J 2Y4 Tel Fax

14 ORTECH Environmental Annual Compliance Emission Testing Program at the Clean Harbors Sarnia Incineration Facility (2010) Report #21223 TABLE OF CONTENTS Page EXECUTIVE SUMMARY INTRODUCTION SOURCE DESCRIPTION Process Description Process Operations EMISSION TESTING PROGRAM PROGRAM ORGANIZATION AND RESPONSIBILITIES SAMPLING LOCATIONS SAMPLING METHODOLOGY Isokinetic Sampling Trains Acid Gases Volatile Organics Combustion Gases Process Sample Collection ANALYTICAL METHODOLOGY Particulate Matter and Metals Semi-Volatile Organics Acid Gases Volatile Organics Feed and Baghouse Dust Samples INTERNAL AND EXTERNAL QA/QC PROGRAM General Pre-Test Activities Emission Testing QA/QC Results Sample Recovery, Handling and Custody Analytical Results Metal Sample Analysis QA/QC Dioxin and Furan Sample Analysis QA/QC Acid Gas Sample Analysis QA/QC Volatile Organic Compound Analysis QA/QC Data QA/QC...33

15 ORTECH Environmental Annual Compliance Emission Testing Program at the Clean Harbors Sarnia Incineration Facility (2010) Report #21223 TABLE OF CONTENTS Page 9. RESULTS AND DISCUSSION Stack Gas Sampling Parameters Stack Gas Physical Parameters Volumetric Flowrate Data Particulate Emission Data Acid Gases Emission Data Combustion Gas Emission Data Metal and Sulphur Emission Data Mercury Emission Data Semi-Volatile Organic Emission Data Dioxins and Furans Emission Data Polychlorinated Biphenyl Emission Data Chlorobenzene and Chlorophenol Emission Data Polycyclic Aromatic Hydrocarbon Emission Data Volatile Organic Emission Data DESTRUCTION AND REMOVAL EFFICIENCIES DISPERSION MODELLING FACILITY PROCESS DATA OTHER EMISSION CRITERIA FEED SAMPLE ANALYSIS LIMITATION ON WASTES COMPARISON OF CONTINUOUS EMISSION MONITORING DATA CONCLUSIONS...56 REFERENCES...58 Figure 1 Incinerator Schematic...59 Figure 2 Particulate Material and Metals Sampling Train...60 Figure 3 Semi-Volatile Organic Train...61 Figure 4 Hydrogen Chloride Sampling Train...62 Figure 5 VOST Train...63 Figure 6 MSML #1 Schematic...64

16 ORTECH Environmental Annual Compliance Emission Testing Program at the Clean Harbors Sarnia Incineration Facility (2010) Report #21223 LIST OF APPENDICES Appendix 1 Data Tables Appendix 2 Certificate of Approval (Air) No Appendix 3 Proving Data Appendix 4 Metals Train Field Data Sheets Appendix 5 Semi-Volatile Organics Train Field Data sheets Appendix 6 Acid Gases Train Field Data Sheets and Gas Volumes Sampled Appendix 7 Volatile Organics Train Field Data Sheets and Gas Volumes Sampled Appendix 8 Metals Train Recovery Data Sheets Appendix 9 Metals Analytical Report Appendix 10 Semi-Volatile Organics Train Recovery Data Sheets Appendix 11 Semi-Volatile Organics Analytical Report Appendix 12 Acid Gases Train Recovery Data Sheets Appendix 13 Acid Gases Analytical Report Appendix 14 Volatile Organics Analytical Reports and DRE Compound Analysis in Feeds Report Appendix 15 Feed and Baghouse Dust Metals Analytical Report Appendix 16 Master Sample Log/Chains of Custody Forms Appendix 17 Internal QA/QC Tables Appendix 18 Equipment Calibration Data Appendix 19 Pre-Test Plan Acceptance Letter Appendix 20 ORTECH CEM Linearity Check Data Appendix 21 ORTECH CEM Calibration Data Appendix 22 Particulate and Metals Test Emission Calculations Appendix 23 Semi-Volatile Organics Test Emission Calculations Appendix 24 ORTECH One-Minute Average Combustion Gas Results Appendix 25 Gas Analysis Graphs Appendix 26 Regulation 346 Dispersion Modelling Results Appendix 27 Clean Harbors Process Data Summaries Appendix 28 Clean Harbors One-Minute Average Combustion Gas Results Appendix 29 Clean Harbors One-Minute Average Process Data Appendix 30 Feed Ultimate Analysis Report

17 ORTECH Environmental Annual Compliance Emission Testing Program Page 1 of 64 at the Clean Harbors Sarnia Incineration Facility (2010) Report #21223 EXECUTIVE SUMMARY The results of an emission testing program performed in November 2010 indicated that the Clean Harbors Canada Ltd. (Clean Harbors), Corunna incineration facility was operating well within compliance for all current Ontario Environmental Protection Act (EPA), Ontario Regulation 419/05 Air Pollution Local Air Quality (Reg. 419) standards and guidelines based on ground level point of impingement concentrations. The emission testing is required annually as part of the Ontario Ministry of the Environment (MOE) Certificate of Approval (Air) (C of A) No , dated April 19, A Notice of Amendment to the C of A was issued on January 24, 2003, Certificate of Approval Waste/Air No G5MSP (referred to herein as Notice of Amendment ). The primary objective of the testing program was to determine the emission rates of specific contaminants and to demonstrate the facility s ability to meet the allowable emission levels for these contaminants according to the specified point of impingement concentration limits. In addition to the requirements of Regulation 419, the Certificate of Approval provides criteria for the total hydrocarbon (THC) concentration on an undiluted basis at the incinerator exit, and in the stack. The C of A also provides concentration limits for carbon monoxide, oxygen, particulate matter, mercury, and the toxic equivalent concentration of dioxins and furans in the stack gases. The following table summarizes the average test results and the corresponding emission criteria: Stack Gas Concentration Criterion Allowable Value Test Average Value Particulate Matter maximum 20 mg/rm 3(1) 2.46 mg/rm 3(1) Mercury maximum 50 µg/rm 3(1) 28.3 µg/rm 3(1) Dioxin and Furan TEQ maximum 80 pg TEQ/Rm 3(1) 8.79 pg TEQ/Rm 3(1) Carbon Monoxide maximum 100 ppm (1) 41.1 ppm (1) Oxygen minimum 8.0 % (2) % (2) Total Hydrocarbons (3) maximum 100 ppm 81.0 ppm Total Hydrocarbons (4) maximum 100 ppm (1) 76.6 ppm (1) (1) (2) (3) (4) adjusted to 11% oxygen, dry at 25 C and 1 atmosphere dry by volume as per C of A (Air) No (wet undiluted incinerator outlet concentration) as per C of A (Air) No G5MSP (dry adjusted stack concentration) Included as part of the emission testing program was a comprehensive, internal Quality Assurance/Quality Control (QA/QC) program. This report describes both the emission testing program and the internal QA/QC program conducted by ORTECH, and summarizes the results.

18 ORTECH Environmental Annual Compliance Emission Testing Program Page 2 of 64 at the Clean Harbors Sarnia Incineration Facility (2010) Report #21223 The emission testing program was conducted over a three day period between November 23 to November 25, 2010 during which three valid tests were completed for each emission component group using several types of sampling trains and sampling methods. The particulate and metals, semi-volatile organics and combustion gas tests were performed simultaneously at the main stack location. During the time required to complete these tests, acid gas and volatile organics tests were also run. Testing was performed at a high load, as specified by the C of A, to demonstrate compliance with MOE emission criteria. During the emission tests, the rich, lean and emulsion feed rates combined were 177.7, and L/min for Test No. 1, Test No. 2, and Test No. 3, respectively. Also during the emission testing program, process data was recorded and composite samples of the liquid waste materials being incinerated were collected for subsequent analysis. The results of these analyses, coupled with the stack gas emission rate measurements, were used to calculate destruction and removal efficiencies (DREs) for four target principal organic hazardous compounds. The average DREs calculated for the emission testing program were as follows: 2- Butanone ( %), Tetrachloroethene ( %), Toluene ( %), and 1,2,4-Trichlorobenzene ( %). Two additional contaminants, ethyl acetate and total xylenes, were analyzed in the stack samples and the feed samples to assess if they were viable DRE compounds for future testing programs. Ethyl acetate and total xylenes were detected in stack gas samples and the emulsion feed samples in quantities greater than the detection limit in all three tests. The average DREs calculated for the emission testing program were as follows: Ethyl Acetate ( %), and Total Xylenes ( %). All tables referenced in this report (excluding the internal QA/QC summary tables) are provided in Appendix 1. Summary results tables for the 2010 emission testing program are provided on the following pages based on calculated ground level point of impingement concentrations for the stack emissions and the DREs. None of the analytical data was blank corrected, although analytical data for some metals (aluminum, boron, calcium, magnesium, silicon and sodium) does not include amounts detected in the hydrofluoric acid extracts of the sampling train filters because of the normally high background levels of these metals. Therefore, contaminant emission rates would tend to be over-estimated.

19 Report Annual Compliance Emission Testing Program at the Clean Harbors Sarnia Incineration Facility (2011) A Report to: Attention: Clean Harbors Canada Inc Telfer Road Corunna, Ontario N0N 1G0 Mr. Dale Leonard Facility Maintenance Manager Tel: (519) Fax: (519) leonard.dale@cleanharbors.com Submitted by: Tina Sanderson, B.Sc. Environmental Scientist Tel: (905) , Ext. 522 Fax: (905) tsanderson@ortech.ca Report No.: pages, 30 Appendices Date: January 24, Mississauga Sarnia Windsor 804 Southdown Road, Mississauga, ON Canada L5J 2Y4 Tel Fax

20 ORTECH Environmental Annual Compliance Emission Testing Program at the Clean Harbors Sarnia Incineration Facility (2011) Report #21291 TABLE OF CONTENTS Page EXECUTIVE SUMMARY INTRODUCTION SOURCE DESCRIPTION Process Description Process Operations EMISSION TESTING PROGRAM PROGRAM ORGANIZATION AND RESPONSIBILITIES SAMPLING LOCATIONS SAMPLING METHODOLOGY Isokinetic Sampling Trains Acid Gases Volatile Organics Combustion Gases Process Sample Collection ANALYTICAL METHODOLOGY Particulate Matter and Metals Semi-Volatile Organics Acid Gases Volatile Organics Feed and Baghouse Dust Samples INTERNAL AND EXTERNAL QA/QC PROGRAM General Pre-Test Activities Emission Testing QA/QC Results Sample Recovery, Handling and Custody Analytical Results Metal Sample Analysis QA/QC Dioxin and Furan Sample Analysis QA/QC Acid Gas Sample Analysis QA/QC Volatile Organic Compound Analysis QA/QC Data QA/QC...34

21 ORTECH Environmental Annual Compliance Emission Testing Program at the Clean Harbors Sarnia Incineration Facility (2011) Report #21291 TABLE OF CONTENTS Page 9. RESULTS AND DISCUSSION Stack Gas Sampling Parameters Stack Gas Physical Parameters Volumetric Flowrate Data Particulate Emission Data Acid Gases Emission Data Combustion Gas Emission Data Metal and Sulphur Emission Data Mercury Emission Data Semi-Volatile Organic Emission Data Dioxins and Furans Emission Data Polychlorinated Biphenyl Emission Data Chlorobenzene and Chlorophenol Emission Data Polycyclic Aromatic Hydrocarbon Emission Data Volatile Organic Emission Data DESTRUCTION AND REMOVAL EFFICIENCIES DISPERSION MODELLING FACILITY PROCESS DATA OTHER EMISSION CRITERIA FEED SAMPLE ANALYSIS LIMITATION ON WASTES COMPARISON OF CONTINUOUS EMISSION MONITORING DATA CONCLUSIONS...56 REFERENCES...58 Figure 1 Incinerator Schematic...59 Figure 2 Particulate Material and Metals Sampling Train...60 Figure 3 Semi-Volatile Organic Train...61 Figure 4 Hydrogen Chloride Sampling Train...62 Figure 5 VOST Train...63 Figure 6 MSML #1 Schematic...64

22 ORTECH Environmental Annual Compliance Emission Testing Program at the Clean Harbors Sarnia Incineration Facility (2011) Report #21291 LIST OF APPENDICES Appendix 1 Data Tables Appendix 2 Certificate of Approval (Air) No Appendix 3 Proving Data Appendix 4 Metals Train Field Data Sheets Appendix 5 Semi-Volatile Organics Train Field Data sheets Appendix 6 Acid Gases Train Field Data Sheets and Gas Volumes Sampled Appendix 7 Volatile Organics Train Field Data Sheets and Gas Volumes Sampled Appendix 8 Metals Train Recovery Data Sheets Appendix 9 Metals Analytical Report Appendix 10 Semi-Volatile Organics Train Recovery Data Sheets Appendix 11 Semi-Volatile Organics Analytical Report Appendix 12 Acid Gases Train Recovery Data Sheets Appendix 13 Acid Gases Analytical Report Appendix 14 Volatile Organics Analytical Reports and DRE Compound Analysis in Feeds Report Appendix 15 Feed and Baghouse Dust Metals Analytical Report Appendix 16 Master Sample Log/Chains of Custody Forms Appendix 17 Internal QA/QC Tables Appendix 18 Equipment Calibration Data Appendix 19 Pre-Test Plan Acceptance Letter Appendix 20 ORTECH CEM Linearity Check Data Appendix 21 ORTECH CEM Calibration Data Appendix 22 Particulate and Metals Test Emission Calculations Appendix 23 Semi-Volatile Organics Test Emission Calculations Appendix 24 ORTECH One-Minute Average Combustion Gas Results Appendix 25 Gas Analysis Graphs Appendix 26 Regulation 346 Dispersion Modelling Results Appendix 27 Clean Harbors Process Data Summaries Appendix 28 Clean Harbors One-Minute Average Combustion Gas Results Appendix 29 Clean Harbors One-Minute Average Process Data Appendix 30 Feed Ultimate Analysis Report

23 ORTECH Environmental Annual Compliance Emission Testing Program Page 1 of 64 at the Clean Harbors Sarnia Incineration Facility (2011) Report #21291 EXECUTIVE SUMMARY ORTECH Environmental (ORTECH) was requested by Clean Harbors to conduct a comprehensive emission testing program at the incineration facility. The emission testing is required annually as part of the Ontario Ministry of the Environment (MOE) Certificate of Approval (Air) (C of A) No , dated April 19, A Notice of Amendment to the C of A was issued on January 24, 2003, Certificate of Approval Waste/Air No G5MSP (referred to herein as Notice of Amendment ). The primary objective of the testing program was to determine the emission rates of specific contaminants and to demonstrate the facility s ability to meet the allowable emission levels for these contaminants according to the specified point of impingement concentration limits. In addition to the requirements of Regulation 419, the Certificate of Approval provides criteria for the total hydrocarbon (THC) concentration on an undiluted basis at the incinerator exit, and in the stack. The C of A also provides concentration limits for carbon monoxide, oxygen, particulate matter, mercury, and the toxic equivalent concentration of dioxins and furans in the stack gases. The following table summarizes the average test results for the three tests conducted by ORTECH and the corresponding emission criteria: Stack Gas Concentration Criterion Allowable Value Test Average Value Particulate Matter maximum 20 mg/rm 3(1) 2.80 mg/rm 3(1) Mercury maximum 50 µg/rm 3(1) 2.12 µg/rm 3(1) Dioxin and Furan TEQ maximum 80 pg TEQ/Rm 3(1) 8.09 pg TEQ/Rm 3(1) Carbon Monoxide maximum 100 ppm (1) 68.9 ppm (1) Oxygen minimum 8.0 % (2) 12.8 % (2) Total Hydrocarbons (3) maximum 100 ppm (1) 123 ppm (1) (1) (2) (3) adjusted to 11% oxygen, dry at 25 C and 1 atmosphere dry by volume as per C of A (Air) No G5MSP (dry adjusted stack concentration) Included as part of the emission testing program was a comprehensive, internal Quality Assurance/Quality Control (QA/QC) program. This report describes both the emission testing program and the internal QA/QC program conducted by ORTECH, and summarizes the results. The emission testing program was conducted over three days between September 20 and September 23, 2011 during which three valid tests were completed for each emission component group using several types of sampling trains and sampling methods.

24 ORTECH Environmental Annual Compliance Emission Testing Program Page 2 of 64 at the Clean Harbors Sarnia Incineration Facility (2011) Report #21291 The particulate and metals, semi-volatile organics and combustion gas tests were performed simultaneously at the main stack location. During the time required to complete these tests, acid gas and volatile organics tests were also run. Testing was performed at a high load, as specified by the C of A, to demonstrate compliance with MOE emission criteria. During the emission tests, the rich, lean and emulsion feed rates combined were 170.6, and L/min for Test No. 1, Test No. 2, and Test No. 3, respectively. The Thermal Desorber Unit (TDU) was exhausting to the incinerator during Test No. 2 and Test No. 3. Also during the emission testing program, process data was recorded and composite samples of the liquid waste materials being incinerated were collected for subsequent analysis. The results of these analyses, coupled with the stack gas emission rate measurements, were used to calculate destruction and removal efficiencies (DREs) for six target principal organic hazardous compounds. The average DREs calculated for the emission testing program were as follows: 2-Butanone ( %), Ethyl Acetate ( %), Tetrachloroethene ( %), Toluene ( %), 1,2,4- Trichlorobenzene ( %) and Total Xylenes ( %). Note the contribution of the Thermal Desorber Unit was not included in the DREs calculations. A single spot sample was collected during the test program to determine the Thermal Desorber Unit contribution to the total DRE feedrate. When the Thermal Desorber Unit contribution is included the average DREs calculated for the emission testing program were as follows: 2-Butanone ( %), Ethyl Acetate ( %), Tetrachloroethene ( %), Toluene ( %), 1,2,4-Trichlorobenzene ( %) and Total Xylenes ( %). All tables referenced in this report (excluding the internal QA/QC summary tables) are provided in Appendix 1. Summary results tables for the 2011 emission testing program are provided on the following pages based on calculated ground level point of impingement concentrations for the stack emissions and the DREs. None of the analytical data was blank corrected, although analytical data for some metals (aluminum, boron, calcium, magnesium, silicon and sodium) does not include amounts detected in the hydrofluoric acid extracts of the sampling train filters because of the normally high background levels of these metals. Therefore, contaminant emission rates would tend to be over-estimated.

25 ORTECH Environmental Annual Compliance Emission Testing Program Page 3 of 64 at the Clean Harbors Sarnia Incineration Facility (2011) Report #21291 Regulation 419 Dispersion Modelling Results for Inorganic and Semi-Volatile Organic Compounds Average Calculated Allowable Percentage Contaminant Emission Impingement Impingement of Status of Rate Concentration Concentration Allowable Allowable Concentration Concentration Base Case 1.00 g/s µg/m 3 Particulate matter 44.0 mg/s µg/m µg/m S Sulphur dioxide 10.2 g/s 21.5 µg/m µg/m S Nitrogen oxides 1.01 g/s 2.12 µg/m µg/m S Carbon monoxide 1.23 g/s 2.59 µg/m µg/m S Hydrogen chloride 456 mg/s 0.96 µg/m 3 60 µg/m S Fluorides (as hydrogen fluoride) 211 mg/s 0.44 µg/m µg/m S Hydrogen cyanide 2.52 mg/s µg/m 3 24 µg/m S Dioxins & furans (TEQ) 0.12 ng TEQ/s pg TEQ/m 3 15 pg TEQ/m G Naphthalene 627 µg/s µg/m 3 36 µg/m G Biphenyl 614 µg/s µg/m 3 60 µg/m G Benzo (a) pyrene µg/s µg/m µg/m G 1,2-Dichlorobenzene 2.67 µg/s µg/m µg/m 3 < G 1,4-Dichlorobenzene 1.90 µg/s µg/m µg/m 3 < S 1,2,4-Trichlorobenzene 0.95 µg/s µg/m µg/m 3 < G Pentachlorophenol 1.39 µg/s µg/m 3 60 µg/m 3 < G Polychlorinated biphenyls 9.47 µg/s µg/m µg/m G S - Standard G - Guideline

26 ORTECH Environmental Annual Compliance Emission Testing Program Page 4 of 64 at the Clean Harbors Sarnia Incineration Facility (2011) Report #21291 Regulation 419 Dispersion Modelling Results for Metals Average Calculated Allowable Percentage Status of Contaminant Emission Impingement Impingement of Allowable Rate Concentration Concentration Allowable Concentration Concentration Base Case 1.00 g/s µg/m 3 Aluminum oxide 1.72 mg/s µg/m µg/m G Antimony mg/s µg/m 3 75 µg/m 3 < S Arsenic 0.47 mg/s µg/m 3 1 µg/m G Barium (as water soluble) mg/s µg/m 3 30 µg/m G Beryllium* mg/s µg/m µg/m S Boron 0.37 mg/s µg/m µg/m S Cadmium mg/s µg/m µg/m S Calcium oxide 2.12 mg/s µg/m 3 20 µg/m S Chromium 0.12 mg/s µg/m 3 5 µg/m G Cobalt mg/s µg/m µg/m G Copper mg/s µg/m µg/m 3 < S Iron (as metal) 1.88 mg/s µg/m 3 10 µg/m S Lead mg/s µg/m 3 6 µg/m S Lithium mg/s µg/m 3 60 µg/m 3 < S Magnesium oxide 0.58 mg/s µg/m µg/m S Manganese (as compounds) mg/s µg/m µg/m G Mercury mg/s µg/m 3 5 µg/m S Molybdenum mg/s µg/m µg/m 3 < G Nickel mg/s µg/m 3 5 µg/m S Phosphorus pentachloride 1.01 mg/s µg/m 3 30 µg/m G Potassium hydroxide 1.00 mg/s µg/m 3 28 µg/m G Selenium 1.11 mg/s µg/m 3 20 µg/m G Silica (as respirable silica) 28.9 mg/s µg/m 3 15 µg/m G Silver mg/s µg/m 3 3 µg/m S Sodium hydroxide 15.8 mg/s µg/m 3 20 µg/m G Strontium mg/s µg/m µg/m 3 < G Tin mg/s µg/m 3 30 µg/m S Titanium 0.70 mg/s µg/m µg/m S Vanadium mg/s µg/m 3 5 µg/m S Zinc 0.15 mg/s µg/m µg/m S S - Standard G - Guideline * These compounds were not detected in any of the emission samples (all analytical results were <MDL).

27 ORTECH Environmental Annual Compliance Emission Testing Program Page 5 of 64 at the Clean Harbors Sarnia Incineration Facility (2011) Report #21291 Regulation 419 Dispersion Modelling Results for Volatile Organic Compounds Average Calculated Allowable Percentage Status of Contaminant Emission Impingement Impingement of Allowable Rate Concentration Concentration Allowable Concentration Concentration Base Case 1.00 g/s µg/m 3 Benzene 74.4 mg/s 0.16 µg/m 3 CARC Bromomethane (methyl bromide) 3.80 mg/s µg/m µg/m 3 < G 2-Butanone (methyl ethyl ketone) 21.1 mg/s µg/m µg/m 3 < S Chloroethene (vinyl chloride)* 0 mg/s 0 µg/m 3 3 µg/m 3 < S 1,1-Dichloroethane (ethylene dichloride)* 0 mg/s 0 µg/m 3 6 µg/m 3 < G trans-1,2-dichloroethene * 0 mg/s 0 µg/m µg/m 3 < G Dichloromethane (methylene chloride) 2.31 mg/s µg/m µg/m 3 < G Ethyl Acetate * 0 mg/s 0 µg/m µg/m 3 < S Ethylbenzene 0.13 mg/s µg/m µg/m 3 < S Isopropylbenzene (cumene) * 0 mg/s 0 µg/m µg/m 3 < S 2-Propanone (acetone) 24.6 mg/s µg/m µg/m 3 < S Styrene 0.61 mg/s µg/m µg/m 3 < S Tetrachloroethene (perchloroethylene) * 0 mg/s 0 µg/m µg/m 3 < G Tetrachloromethane (carbon tetrachloride) * 0 mg/s 0 µg/m µg/m 3 < S Toluene 8.40 mg/s µg/m µg/m 3 < S Tribromomethane (bromoform)* 0 mg/s 0 µg/m µg/m 3 < G 1,1,1-Trichloroethane (methyl chloroform)* 0 mg/s 0 µg/m µg/m 3 < S Trichloroethene * 0 mg/s 0 µg/m 3 36 µg/m 3 < S Trichlorofluoromethane* 0 mg/s 0 µg/m µg/m 3 < G Trichloromethane (chloroform)* 0 mg/s 0 µg/m 3 3 µg/m 3 < S Trichlorotrifluoroethane* 0 mg/s 0 µg/m µg/m 3 < S 1,2,4-Trimethylbenzene (pseudocumene) * 0 mg/s 0 µg/m µg/m 3 < G 1,3,5-Trimethylbenzene * 0 mg/s 0 µg/m µg/m 3 < G Xylenes * 0 mg/s 0 µg/m µg/m 3 < S S - Standard G - Guideline CARC - Carcinogen: emissions should be as low as possible * These compounds were not detected in any of the emission samples (all analytical results were <MDL).

28 ORTECH Environmental Annual Compliance Emission Testing Program Page 6 of 64 at the Clean Harbors Sarnia Incineration Facility (2011) Report #21291 Summary of Destruction and Removal Efficiencies for Volatile Organic Compounds Compund Destruction and Removal Efficiency Coefficient Test Test Test Average of No. 1 No. 2 No. 3 Variation % % % % % 2-Butanone Ethyl Acetate Tetrachloroethene Toluene Total Xylenes ,2,4-Trichlorobenzene

29 Clean Harbors Canada Inc. Emission Summary and Dispersion Modelling Report Appendix F Excerpts from Ambient Air Monitoring Reports ( ) (25) November 2013

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43 Ambient Air Monitoring 2012 for Clean Harbors Environmental Services Inc. Lambton Facility A Report to: Clean Harbors Environmental Services Inc Telfer Road Corunna, Ontario N0N 1G0 Submitted to: Mr. Michael Parker Director of Compliance Tel: (519) Fax: (519) parker.michaele@cleanharbors.com Submitted by: Rod Brooks Sarnia Manager Tel: (519) Fax: (519) rbrooks@ortech.ca Report No.:: 50, pages 1 Appendix Date: October 4, Mississauga Sarnia Windsor 1133C Vanier Road, Sarnia, Ontario, N7S 3Y6 Tel Fax

44 ORTECH Environmental Ambient Air Monitoring 2012 for Page 1 of 24 Clean Harbors Environmental Services Inc. Lambton Facility Report # 50,728-1 INTRODUCTION Clean Harbors Environmental Services (Clean Harbors) has been conducting an annual ambient air fenceline monitoring program spanning more than eighteen years at its Lambton Facility near Corunna in order to ensure that potential substance releases from ongoing activities are within accepted regulatory limits. The monitoring requirement was part of the facility Certificate of Approval (CofA) and included a series of measurements at the fenceline, for a selected group of speciated vapour and particulate constituents, in accordance with a monitoring plan that was approved by the Ontario Ministry of the Environment (MOE). The target constituents were selected from previous monitoring data at the facility and the measured levels, which are potentially contributed by facility operations, have been compared each year with applicable MOE air quality standards and criteria. On August 6, 2010 Clean Harbors received notice from the MOE that the Reg. 419/05 Schedule 3 24-hour standard was now applicable to their facility as per a CofA. Prior to the initiation of last year s (2011) program, a review of the previous years program was conducted by MOE with Clean Harbors and a new Monitoring Plan was developed and approved. This Plan addressed the following six issues: Updated the sampling program from ½-hour VOCs collected on adsorbent tubes (EPA method TO-17) to 24-hour samples collected in evacuated canisters (EPA method TO-15); Updated the target VOC list; Relocated the south sampling location; Fixed the north sampling location; Sampled from midnight to midnight (eastern standard time); and Initiated sampling on the twelve day National Air Pollution Surveillance Network (NAPS) cycle. This report contains a synopsis of the measurement methods used to conduct the monitoring requirements during 2012, as specified by MOE, and both summarized and individual measurement results that were obtained during the period of June to September 6 th. Results for the period after September 6 th will be appended to this report when the measurements have been completed.

45 ORTECH Environmental Ambient Air Monitoring 2012 for Page 2 of 24 Clean Harbors Environmental Services Inc. Lambton Facility Report # 50, METHODOLOGY 1.1 General Synopsis of Approach The primary objective of the ambient air monitoring program was to continue the measurement of specific airborne target compounds at or near the facility perimeter by established procedures to verify that concentrations are within accepted regulatory limits. The Lambton facility is located at the intersection of Petrolia Line and Telfer Road near Corunna and receives a wide variety of industrial wastes for destruction and disposal. The operations include primary emission sources such as: An active landfill area on the north side of the property containing working cells which generally orient from east to west; A liquid industrial waste incinerator near the center of the facility; A thermal desorption unit also located near the center of the facility; Multiple fugitive sources that extend over a large part of the facility area; and An inactive (closed) landfill area located in the southern portion of the property. The nearest residences exist to the north, east and west of the active landfill locale. The primary emphasis of this monitoring program was directed toward potential fugitive emission releases from the landfill and other low-elevation facility sources. The list of target substances was selected to characterize the property line concentrations related to these emissions and was based upon previous ambient air fenceline measurements in conjunction with input by Clean Harbors and the MOE. This target list of substances and the measurement frequency were reviewed by Clean Harbors with the MOE prior to the start-up of the 2011 monitoring program and were revised to ensure the program continued to be relevant to the current operation of the facility. The same parameters were measured in 2012 and included: An extensive group of speciated volatile organic compounds (VOC); Total suspended particulate matter (TSP); Speciated metal elements of particulate matter (Metals); Specific aldehyde and ketone constituents (Carbonyls); and Vapour and particulate mercury (Mercury).

46 ORTECH Environmental Ambient Air Monitoring 2012 for Page 3 of 24 Clean Harbors Environmental Services Inc. Lambton Facility Report # 50,728-1 Concurrent 24-hour sampling was conducted at two fixed locations. The north site was located at the north perimeter with the south site at some distance from the southerly fenceline. The siting of these two locations was based on the predicted south to southwesterly winds directions that prevail for the area, with the northerly site positioned to account for the directional dispersion of the combined types of potential facility emissions. 1.2 Monitoring Locations The north and south monitoring locations are shown on the map in Figure 1. Predicted south to southwesterly wind directions have historically prevailed for this area. The north site is within the perimeter fencing of the north property line (Petrolia Line) at the base of the sloped berm which is adjacent to the exposed waste landfill area, with the emphasis directed toward measuring maximum potential constituent levels from the active landfill operations under southerly wind regimes. The monitoring position was fixed throughout the survey period as directed by the MOE. The south site is south of the facility on a property at the corner of Telfer Road and Rokeby Line. The locale is upwind of all facility operations under southerly wind conditions and was sited to minimize possible particulate contributions from the adjacent gravel road (Telfer Line) with no major contributing sources between the monitoring site and the facility. Prior to 2011, the northerly monitoring site was moved laterally along the Petrolia Line fenceline to optimize alignment wind alignment with the active landfill operations. In the pre-2011 program review the MOE recommended a fixed site located at approximately the mid-point of the north fenceline. This enabled the provision of line power to the site and expunged the potential sample contamination contributed by the required diesel generator. The MOE also recommended the relocation of the southerly site from the southwest of the property to a location further from the facility to reduce the possible influence of onsite sources. 1.3 Sample Storage & Transportation Before and after sample collection, the sample media and canisters were stored at the ORTECH laboratory in an appropriate, clean, temperature controlled environment. Exposed sample media and canisters were packed in protective cases (with ice packs if required) and shipped via courier to the analytical laboratory within three days of exposure. Chain of custody records were maintained for all samples.

47 ORTECH Environmental Ambient Air Monitoring 2012 for Page 4 of 24 Clean Harbors Environmental Services Inc. Lambton Facility Report # 50,728-1 FIGURE 1 North and South Sampling Locations North Site LEGEND sampling sites wind speed key >15 km/hr South Site 1.4 Sample Collection and Analysis In order to maintain consistency with previous monitoring at the facility, essentially the same measurement methods, with the exception of VOCs (formerly adsorbent tubes US EPA TO-17), were used for concurrent monitoring as shown in Table 1.

48 ORTECH Environmental Ambient Air Monitoring 2012 for Page 16 of 24 Clean Harbors Environmental Services Inc. Lambton Facility Report # 50,728-1 Figure 2 Wind Roses North Site Jun 2, 2012 Jun 14, 2012 Jun 26, 2012 Jul 8, 2012 Jul 20, 2012 Aug 1, 2012 LEGEND sampling sites wind speed key >15 km/hr South Site Aug 13, 2012 Aug 25, 2012 Sep 6, 2012

49 ORTECH Environmental Ambient Air Monitoring 2012 for Page 22 of 24 Clean Harbors Environmental Services Inc. Lambton Facility Report # 50,728-1 Table 9 Volatile Organic Compounds Summary % of Maximum % of Maximum Compound: CAS No. 24-hr Std (sch 3) South North South Samples of North Samples of µg/m 3 Mean Minimum Maximum Mean Minimum Maximum 24-hr Std (sch 3) 24-hr Std (sch 3) Carbon Tetrachloride nd nd nd nd nd nd nd nd Isopropyl Alcohol , nd nd Acetone , Chloroform nd nd nd nd nd nd nd nd Benzene * nd nd nd 0.17 nd 0.77 nd ,1,1-Trichloroethane ,000 nd nd nd nd nd nd nd nd Vinyl Chloride nd nd nd nd nd nd nd nd Dichloromethane nd nd nd nd nd nd nd nd 1,1-Dichloroethane nd nd nd nd nd nd nd nd 1,1-Dichloroethene nd nd nd nd nd nd nd nd Chlorodifluoromethane , nd Trichlorofluoromethane , nd Dichlorodifluoromethane , nd ,1,2-Trichloro-1,2,2-Trifluoroethane ,000 nd nd nd n nd nd nd nd 2-Methyl Butane ,2-Dichloropropane ,400 nd nd nd nd nd nd nd nd MEK , nd nd Trichloroethene nd nd nd 0.13 nd 1.20 nd 10.0 Naphthalene nd nd nd nd nd nd nd nd o-xylene nd nd nd nd nd nd nd nd 1,2-Dichlorobenzene nd nd nd nd nd nd 1,2,4-Trimethylbenzene nd nd nd nd nd nd nd nd 3-Methyl Pentane nd nd nd 0.09 nd 0.85 p-cymene nd nd nd nd nd nd Ethyl Benzene ,000 nd nd nd nd nd nd nd nd Styrene nd nd nd nd nd nd nd nd 1,4-Dichlorobenzene nd nd nd nd nd nd nd nd 1,2-Dibromoethane nd nd nd nd nd nd nd nd 1,2-Dichloroethane nd nd nd nd nd nd nd nd 2-Propenenitrile nd nd nd nd nd nd nd nd 2-Methyl Pentane nd nd 0.92 MIBK ,200 nd nd nd nd nd nd nd nd m/p-xylene / nd nd nd nd nd nd nd nd 1,3,5-Trimethylbenzene nd nd nd nd nd nd nd nd Toluene , nd Chlorobenzene ,500 nd nd nd nd nd nd nd nd Hexane , nd nd Cyclohexane , nd nd Nonane nd nd nd nd nd nd 1,2,4-Trichlorobenzene nd nd nd nd nd nd nd nd Tetrachloroethene nd 2.30 nd nd nd 0.6 nd Ethyl Acetate ,000 nd nd nd nd nd nd nd nd Heptane ,000 nd nd nd nd nd nd nd nd 1,2-Dichloroethene (Cis) nd nd nd nd nd nd nd nd 1,2-Dichloroethene (Trans) nd nd nd nd nd nd nd nd 1,2,3-Trimethylbenzene nd nd nd nd nd nd nd nd 3-Methyl Hexane nd nd nd nd nd nd o-ethyl Toluene nd nd nd nd nd nd * AAQC

50 ORTECH Environmental Ambient Air Monitoring 2012 for Page 23 of 24 Clean Harbors Environmental Services Inc. Lambton Facility Report # 50,728-1 Table 10 Total Suspended Particulates and Particulate Metals Summary Sample Max as Parameter CAS No. 24-hr Std Sch 3 South Site North Site % of 24-hr Std (µg/m3) mean min max mean min max South Site North Site Total Suspended Particulate (TSP) na Lead Manganese Nickel Thallium na nd nd nd nd nd nd Tin nd nd nd nd nd nd nd nd Antimony nd nd nd nd nd nd nd nd Arsenic * nd nd nd nd nd nd nd nd Barium * Beryllium nd nd nd nd nd nd nd nd Cadmium nd nd nd nd nd nd nd nd Chromium * Cobalt * Copper Vanadium Zinc Selenium * nd nd nd nd nd nd nd nd Iron Notes: nd = below method detection limit na = no applicable Sch 3 standard of guideline * = guideline

51 ORTECH Environmental Ambient Air Monitoring 2012 for Page 24 of 24 Clean Harbors Environmental Services Inc. Lambton Facility Report # 50,728-1 Table 11 Carbonyl Summary Sample Max as Compound CAS No. 24-hr Std Sch 3 South Site North Site % of 24-hr Std (µg/m 3 ) mean min max mean min max South Site North Site Formaldehyde Acetone ,880 nd nd nd nd nd nd nd nd Acetaldehyde nd nd nd nd nd nd nd nd Benzaldehyde na nd nd nd nd nd nd Acrolein nd nd nd nd nd nd nd nd Glutaraldehyde * nd nd nd nd nd nd nd nd Propionaldehyde (Propanal) na nd nd nd nd nd nd n-butyraldehyde (n-butanal) na nd nd nd nd nd nd Notes: nd = below method detection limit na = no applicable Sch 3 standard of guideline * = guideline Table 12 Mercury Summary Sample Max as Compound CAS No. 24-hr Std Sch 3 South Site North Site % of 24-hr Std (µg/m 3 ) mean min max mean min max South Site North Site Particulate Mercury Vapour Mercury nd nd nd nd nd nd Total Mercury Note: nd = below method detection limit

52 ORTECH Environmental Ambient Air Monitoring 2012 for Appendix A Clean Harbors Environmental Services Inc. Lambton Facility Report # 50,728-1 APPENDIX A Data for Twenty-Four Hour Samples (3 pages)

53 ORTECH Environmental Ambient Air Monitoring 2012 for Appendix A Clean Harbors Environmental Services Inc. Lambton Facility Report # 50,728-1 VOCs June to September 6 02-Jun Jun Jun Jun Jun Jun Jul Jul Jul Jul Aug Aug Aug Aug Aug Aug Sep Sep-12 NVOC-1 SVOC-1 NVOC-2 SVOC-2 NVOC-3 SVOC-3 NVOC-4 SVOC-4 NVOC-5 SVOC-5 NVOC-6 SVOC-6 NVOC-7 SVOC-7 NVOC-8 SVOC-8 NVOC-9 SVOC-9 Compound CAS NO. North South North South¹ North South North South North South North South North South North South North South Carbon Tetrachloride <1.3 <1.3 <1.3 <2.5 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 Isopropyl Alcohol < <2.5 <4.9 < <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 < <2.5 <2.5 Acetone Chloroform <0.98 <0.98 <0.98 <2.0 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 Benzene <0.64 <0.64 <0.64 <1.3 <0.64 <0.64 <0.64 <0.64 <0.64 <0.64 <0.64 < < <0.64 <0.64 <0.64 1,1,1-Trichloroethane <1.1 <1.1 <1.1 <2.2 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 Vinyl Chloride <0.51 <0.51 <0.51 <1.0 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 <0.51 Dichloromethane <0.69 <0.69 <0.69 <1.4 <0.69 <0.69 <0.69 <0.69 <0.69 <0.69 <0.69 <0.69 <0.69 <0.69 <0.69 <0.69 <0.69 <0.69 1,1-Dichloroethane <0.81 <0.81 <0.81 <1.6 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 1,1-Dichloroethene <0.79 <0.79 <0.79 <1.6 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 Chlorodifluoromethane < Trichlorofluoromethane < Dichlorodifluoromethane < ,1,2-Trichloro-1,2,2-Trifluoroethane <1.5 <1.5 <1.5 <3.1 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 2-Methyl Butane ,2-Dichloropropane <0.92 <0.92 <0.92 <1.8 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 MEK <0.59 < < Trichloroethene <1.1 <1.1 <1.1 <2.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 < <1.1 Naphthalene <2.6 <2.6 <2.6 <5.2 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 <2.6 o-xylene <0.87 <0.87 <0.87 <1.7 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 1,2-Dichlorobenzene <1.2 <1.2 <1.2 <2.4 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1,2,4-Trimethylbenzene <0.98 <0.98 <0.98 <2.0 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 < Methyl Pentane <0.70 <0.70 <0.70 < <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 p-cymene <1.1 <1.1 <1.1 <2.2 <2.7 <2.7 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 Ethyl Benzene <0.87 <0.87 <0.87 <1.7 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 <0.87 Styrene <0.85 <0.85 <0.85 <1.7 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 1,4-Dichlorobenzene <1.2 <1.2 <1.2 <2.4 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1,2-Dibromoethane <1.5 <1.5 <1.5 <3.1 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1,2-Dichloroethane <0.81 <0.81 <0.81 <1.6 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 < Propenenitrile <0.43 <0.43 <0.43 <0.87 <0.43 <0.43 <0.43 <0.43 <0.43 <0.43 <0.43 <0.43 <0.43 <0.43 <0.43 <0.43 <0.43 < Methyl Pentane <0.70 <0.70 <0.70 < < <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 <0.70 MIBK <2.0 <2.0 <0.82 <1.6 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 m/p-xylene / <1.7 <1.7 <1.7 <3.5 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 1,3,5-Trimethylbenzene <0.98 <0.98 <0.98 <2.0 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 Toluene < Chlorobenzene <0.92 <0.92 <0.92 <1.8 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 <0.92 Hexane <0.70 <0.70 <0.70 < <0.70 <0.70 <0.70 < < <0.70 <0.70 <0.70 <0.70 <0.70 Cyclohexane <0.69 <0.69 <0.69 <1.4 <0.69 <0.69 <0.69 <0.69 <0.69 < <0.69 <0.69 <0.69 <0.69 Nonane <1.0 <1.0 <1.0 <2.1 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1,2,4-Trichlorobenzene <1.5 <1.5 <1.5 <3.0 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 Tetrachloroethene <1.4 <1.4 <1.4 <2.7 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 < Ethyl Acetate <0.72 <0.72 <0.72 <1.4 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 Heptane <0.82 <0.82 <0.82 <1.6 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 1,2-Dichloroethene (Cis) <0.79 <0.79 <0.79 <1.6 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 1,2-Dichloroethene (Trans) <0.79 <0.79 <0.79 <1.6 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 1,2,3-Trimethylbenzene <0.98 <0.98 <0.98 <2.0 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 < Methyl Hexane <0.82 <0.82 <0.82 <1.6 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 <0.82 o-ethyl Toluene <0.98 <0.98 <0.98 <2.0 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98 <0.98