The licensee shall take the actions specified to close out the non-compliances and observations raised in this Site Visit Report.

Transcription

1 Site Visit Report The site visit process is a sample on a particular day of an installation's compliance with some of its licence conditions. Where noncompliance against a particular condition has not been reported, this should not be construed to mean that there is full compliance with that condition of the licence. Instructions and actions arising from the visit shall be addressed, or where applicable noted, by the licensee in order to ensure compliance, to improve the environmental performance of the installation and to provide clarification on certain issues. The licensee shall take the actions specified to close out the noncompliances and observations raised in this Site Visit Report. Licensee Name of Installation Licensee () Licence Register No. P CRO Number Site Address Site Visit Reference No. Dromore West,, Cavan SV10474 Report Detail Issue Date 03/11/2017 Prepared By David Matthews Site Visit Detail Date Of Inspection 27/09/2017 Announced No Time In 09:30 Time Out 17:00 Visited by on behalf of the EPA Exova Catalyst Ireland Licensee Personnel and Role See report. Photo Taken No Samples Taken Video Taken No Odour Assessment No Site Visit Report SV10474 Page 1 of 54

2 Scope This is a report on monitoring of emissions to atmosphere at this site. Please find the detailed technical report attached. Media Air. Site Areas Inspected See report. Documents Inspected See report. Site Visit Report SV10474 Page 2 of 54

3 Site Visit Report SV10474 Page 3 of 54

4 ISO/IEC Accredited Legal Entity, UKAS Accredited Testing Laboratory No Exova (UK) Ltd trading as Exova Catalyst & Exova Catalyst Ireland Unit C5, Emery Court, The Embankment Business Park, Stockport, SK4 3GL EPA AIR EMISSIONS COMPLIANCE MONITORING EMISSIONS REPORT (Prepared on behalf of the EPA by Exova Catalyst EPA Contract No. OEEDS14) Exova Catalyst Ireland, Unit D8 North City Business Park, North Road, Finglas, Dublin 11 E: Your Exova Catalyst Ireland Contact: Nick Kenny ( ) Stack Emissions Testing Report Commissioned by EPA Office of Environmental Enforcement Installation Name & Address Dromore West Co. Cavan Industrial Emissions Licence: PO68702 Stack Reference A14 Boiler A Dates of the Monitoring Campaign 27th September 2017 Job Reference Number PO68702 CAR1701 Report Written by John Glennon Team Leader MCERTS Level 2 MM TE1 TE2 TE3 TE4 Report Approved by Patrick O'Brien Deputy Regional Manager MCERTS Level 2 MM TE1 TE2 TE3 TE4 Report Date 18th October 2017 Version Version 1 Signature of Report Approver DELETE & COVER ME Site Visit Report SV10474 Page 4 of 54

5 CONTENTS TITLE PAGE CONTENTS Summary of Sampling Deviations 2 EXECUTIVE SUMMARY Monitoring Objectives Monitoring Results Monitoring Dates & Times Process Details Monitoring & Analytical Methods Sampling Location Plant Photos / Sample Points APPENDIX 1 Monitoring Personnel & List of Equipment APPENDIX 2 Raw Data, Sampling Equations & Charts Opinions and interpretations expressed herein are outside the scope of Exova Catalyst Ireland's ISO accreditation. This test report shall not be reproduced, except in full, without the written approval of Exova Catalyst Ireland. The testing performed fully meets the technical requirements in Irish EPA Guidance Note, AG2. A14 Boiler A Site Visit Report SV10474 Page 5 of 54 CATRT (Version BR) Page 2 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

6 Executive Summary (Page 1 of 7) MONITORING OBJECTIVES, A14 Boiler A 27th September 2017 Overall Aim of the Monitoring Campaign Exova Catalyst Ireland were commissioned by the EPA Office of Environmental Enforcement to carry out stack emissions testing at on the A14 Boiler A at. The aim of the monitoring campaign was to demonstrate compliance with a set of emission limit values (ELVs) as specified in the Site's Permit. Special Requirements There were no special requirements. Target s Oxides of Nitrogen (as NO₂) A14 Boiler A Site Visit Report SV10474 Page 6 of 54 CATRT (Version BR) Page 3 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

7 Executive Summary (Page 2 of 7) MONITORING RESULTS, A14 Boiler A 27th September 2017 where MU = Measurement Uncertainty associated with the Result Concentration Mass Emission Result MU +/ Limit Result MU +/ Limit Oxides of Nitrogen (as NO₂) ¹ g/hr Oxygen % v/v Dry Water Vapour Stack Gas Temperature Stack Gas Velocity % v/v C m/s Volumetric Flow Rate (ACTUAL) Volumetric Flow Rate (REF) ¹ m³/hr m³/hr Limit NOTE: VOLUMETRIC FLOW RATE & VELOCITY DATA TAKEN FROM THE PRELIMINARY VELOCITY TRAVERSE. ¹ Reference Conditions (REF) are: 273K, 101.3kPa, dry gas, 3% oxygen. A14 Boiler A Site Visit Report SV10474 Page 7 of 54 CATRT (Version BR) Page 4 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

8 Executive Summary (Page 3 of 7) MONITORING DATE(S) & TIMES, A14 Boiler A 27th September 2017 Concentration Mass Emission Sampling Sampling Duration Date(s) Times mins Oxides of Nitrogen (as NO₂) Oxygen Water Vapour Velocity & Volumetric Flow Rate R g/hr /09/ :35 13:04 30 R1 % v/v 4.18 R1 R1 27/09/ :35 13:04 % v/v /09/ :35 13: /09/ :46 10:56 30 All results are expressed at the respective reference conditions. A14 Boiler A Site Visit Report SV10474 Page 8 of 54 CATRT (Version BR) Page 5 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

9 Executive Summary (Page 4 of 7) PROCESS DETAILS, A14 Boiler A 27th September 2017 Standard Operating Conditions Process Status Capacity (of 100%) and Tonnes / Hour Continuous or Batch Process Feedstock (if applicable) Abatement System Abatement System Running Status Fuel Plume Appearance Value Gas Boiler 80% capacity Continuous Natural Gas N/A N/A Natural Gas N/A A14 Boiler A Site Visit Report SV10474 Page 9 of 54 CATRT (Version BR) Page 6 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

10 Executive Summary (Page 5 of 7) MONITORING & ANALYTICAL METHODS, A14 Boiler A 27th September 2017 Monitoring Analysis Standard Technical ISO Testing Analytical Analytical ISO Analysis MCERTS Procedure Lab Procedure Technique Lab Testing Testing Analysis LOD (Average) Water Vapour Oxides of Nitrogen (as NO₂) Oxygen Velocity & Vol. Flow Rate EN CATTP05 CAT CATTP05 Gravimetric CAT 0.1 % v/v EN CATTP21 CAT Chemiluminescence by Horiba PG EN CATTP21 CAT Dry Zirconia Cell by Horiba PG % EN (MID) CATTP41 CAT Pitot Tube and Thermocouple 1.2 m/s ANALYSIS LABORATORIES (with short name reference as appears in the table above) Exova Catalyst (CAT) ISO Accreditation Number: 4279 SUMMARY OF SAMPLING DEVIATIONS Run Deviation All 1 There are no deviations associated with the sampling employed. A14 Boiler A Site Visit Report SV10474 Page 10 of 54 CATRT (Version BR) Page 7 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

11 Executive Summary (Page 6 of 7) SUITABILITY OF SAMPLING LOCATION Duct Characteristics Location of Sampling Platform Value General Platform Information Value Type Circular Depth m 1.20 Width m Area m² 1.13 Port Depth cm 10 Orientation of Duct Horizontal Number of Ports 1 Sample Port Size 2" BSP Permanent / Temporary Platform Inside / Outside Permanent Inside Platform Details Irish EPA Technical Guidance Note AG1 / EN Platform Requirements Value Sufficient working area to manipulate probe and operate the measuring instruments Platform has 2 levels of handrails (approx. 0.5m & 1.0m high) Platform has vertical base boards (approx. 0.25m high) Platform has chains / self closing gates at top of ladders There are no obstructions present which hamper insertion of sampling equipment Safe Access Available Easy Access Available Sampling Location / Platform Improvement Recommendations The sampling location meets all the requirements specified in Irish EPA Guidance Note AG1 and EN 15259, and therefore there are no improvement recommendations. EN Homogeneity Test Requirements There is no requirement to perform a EN Homogeneity Test on this Stack. Sampling Plane Validation Criteria (from EN 15259) Criteria in EN Traverse 1 Required Compliant Lowest Differential Pressure Pa 9.0 > 5 Pa Mean Velocity m/s 3.80 Lowest Gas Velocity m/s 3.71 Highest Gas Velocity m/s 3.85 Ratio of Above : < 3 : 1 Maximum Angle of Swirl NM NM NM NM NM NM NM No Local Negative Flow Where NM = Not Measured as no Isokinetic sampling was performed. A14 Boiler A Site Visit Report SV10474 Page 11 of 54 CATRT (Version BR) Page 8 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

12 Executive Summary (Page 7 of 7) SAMPLE POINTS Line A where = isokinetic point sampled at = isokinetic point not sampled at = combustion gases sample point = nonisokinetic sample point A14 Boiler A Site Visit Report SV10474 Page 12 of 54 CATRT (Version BR) Page 9 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

13 APPENDICES APPENDIX CONTENTS APPENDIX 1 Stack Emissions Monitoring Personnel, List of Equipment & Methods and Technical Procedures Used APPENDIX 2 Summaries, Calculations, Raw Data and Charts A14 Boiler A Site Visit Report SV10474 Page 13 of 54 CATRT (Version BR) Page 10 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

14 APPENDIX 1 STACK EMISSIONS MONITORING PERSONNEL Position Name MCERTS Accreditation MCERTS Number Technical Endorsements Team Leader John Glennon MCERTS Level 2 MM TE1 TE2 TE3 TE4 Trainee Luke Cregan MCERTS Trainee MM None LIST OF EQUIPMENT Extractive Sampling Instrumental Analysers Miscellaneous Items Equipment Type Equipment I.D. Equipment Type Equipment I.D. Equipment Type Equipment I.D. Control Box DGM (1) Horiba PG250 CAT 9.19 Digital Manometer (1) CAT 3.97 Control Box DGM (2) SELECT Horiba Model (2) Digital Manometer (2) Box Thermocouples (1) SELECT Servomex Model Digital Temperature Meter CAT 3.97 Box Thermocouples (2) Eco Physics CLD 822Mh Stopwatch CAT Umbilical (1) ABB AO2020URAS26 Barometer CAT Umbilical (2) Testo 350 XL Stack Thermocouple (1) CAT Oven Box (1) JCT JCC P1 Cooler CAT Stack Thermocouple (2) Oven Box (2) Heated Probe (1) SELECT FTIR Gasmet Sampling System Stack Thermocouple (3) 1m Heated Line (1) Heated Probe (2) Bernath 3006 FID 1m Heated Line (2) Heated Probe (3) M&C PSS CAT m Heated Line (3) SPitot (1) CAT 21S.42 Mass Flow Controller (1) CAT m Heated Line (1) SPitot (2) Mass Flow Controller (2) CAT m Heated Line (1) LPitot Mass View (1) CAT m Heated Line (1) CAT Site Balance CAT Mass View (2) 20m Heated Line (2) 500g / 1Kg Check Weights CAT SELECT Logger 1 Dual Channel Heater Controller Last Impinger Arm SELECT Logger 2 Single Channel Heater Controller CAT Callipers Bioaerosols Temperature Logger Laboratory Balance Tubes Kit Thermocouple Electronic Refrigerator Tape Measure CAT METHODS & TECHNICAL PROCEDURES USED Water Vapour Oxides of Nitrogen (as NO₂) Oxygen Velocity & Vol. Flow Rate Standard EN EN EN EN (MID) Technical Procedure CATTP05 CATTP21 CATTP21 CATTP41 A14 Boiler A Site Visit Report SV10474 Page 14 of 54 CATRT (Version BR) Page 11 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

15 PRELIMINARY STACK SURVEY: CALCULATIONS General Stack Details Stack Details (from Traverse) Stack Diameter / Depth, D Stack Width, W Stack Area, A Average Stack Gas Temperature, T a Average Stack Gas Pressure Average Stack Static Pressure, P static Average Barometric Pressure, P b Average Pitot Tube Calibration Coefficient, C p m m m² C Pa kpa kpa Value Stack Gas Composition & Molecular Weights Component Conc Conc Conc Volume Molar Density Conc Dry Wet Fraction Mass kg/m³ kg/m³ % v/v % v/v r M p p i CO₂ (Estimated) O₂ N₂ Moisture (H₂O) Where: p = M / p i = r x p Calculation of Stack Gas Densities Determinand Result Dry Density (STP), P STD Wet Density (STP), P STW Dry Density (Actual), P Actual Average Wet Density (Actual), P ActualW kg/m³ kg/m³ kg/m³ kg/m³ Where: P STD = sum of component concentrations, kg/m³ (not including water vapour) P STW = sum of all wet concentrations / 100 x density, kg/m³ (including water vapour) P Actual = P STD x (T STP / (P STP )) x ((P static + P b ) / T a ) P ActualW (at each sampling point) = P STW x (T s / P s ) x (P a / T a ) Calculation of Stack Gas Volumetric Flowrate, Q Duct gas flow conditions Temperature C Actual REF ¹ 0.0 Total Pressure kpa Moisture % Oxygen (Dry) % Gas Volumetric Flowrate (from Traverse) Result Gas Volumetric Flowrate (Actual) m³/hr Gas Volumetric Flowrate (STP, Wet) m³/hr Gas Volumetric Flowrate (STP, Dry) m³/hr 9354 Gas Volumetric Flowrate REF ¹ m³/hr 8742 A14 Boiler A Site Visit Report SV10474 Page 15 of 54 CATRT (Version BR) Page 12 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

16 PRELIMINARY STACK SURVEY: VELOCITY TRAVERSE TO EN (MID) (1 of 1) Value Date of Survey 27/09/2017 Initial Pitot Leak Check Time of Survey 10:46 10:56 Final Pitot Leak Check Atmospheric Pressure kpa Orientation of Duct Average Stack Static Pressure Pa 72 Pitot Tube, C p Result of Pitot Stagnation Test Pass Number of Lines Available Are Water Droplets Present? No Number of Lines Used Device Used SType Pitot with KIMO MP 200 (500Pa) Value Pass Pass Horizontal Sampling Line A Traverse Depth P Temp Wet Density Velocity Swirl Point m Pa C kg/m³ m/s STATIC (: Pa) 72.3 Mean A14 Boiler A Site Visit Report SV10474 Page 16 of 54 CATRT (Version BR) Page 13 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

17 PRELIMINARY STACK SURVEY: VELOCITY TRAVERSE TO EN (MID) MEASUREMENT UNCERTAINTY (1 of 1) Performance characteristics (Uncertainty Components) Uncertainty Value Standard Uncertainty on the coefficient of the Pitot Tube u(k) Standard Uncertainty associated with the mean local dynamic pressures u( pi) Pa Resolution u(res) Calibration u(cal) Drift u(drift) Lack of Fit u(fit) Overall corrections to dynamic measurements u(cf) Standard uncertainty associated with the molar mass of the gas u(m) φo₂,w φco₂,w Oxygen, dry u(φo₂,d) Carbon Dioxide, dry u(φco₂,d) Water Vapour u(φh₂o) Oxygen, wet u(φo₂,w) Carbon Dioxide, wet u(φco₂,w) Standard uncertainty associated with the stack temperature u(tc) K Standard uncertainty associated with the absolute pressure in the duct u(pc) Pa Atmospheric Pressure u(patm) Static Pressure u(pstat) Standard uncertainty associated with the density in the duct u(ρ) Standard uncertainty associated with the local velocities u(vi) Pa Standard uncertainty associated with the mean velocity u(v) m/s Standard uncertainty associated with the mean velocity (95% Confidence) Uc(v) m/s Standard uncertainty associated with the mean velocity (95% Confidence), relative Uc,rel(v) 5.59 % Standard uncertainty associated with the volume flow rate (95% Confidence) Uc(qV,w) m³/hr u²(a)/a² u²(qv,w)/q²v,w u²(qv,w) u(qv,w) Standard uncertainty associated with the volume flow rate (95% Confidence), relative Uc,rel(qV,w) 7.19 % A14 Boiler A Site Visit Report SV10474 Page 17 of 54 CATRT (Version BR) Page 14 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

18 WATER VAPOUR: RESULTS SUMMARY, A14 Boiler A Sample Runs Mean Concentration % v/v Uncertainty ±% v/v General Sampling Information Standard Technical Procedure Value EN CATTP05 WATER VAPOUR: SAMPLING DETAILS Sample Runs Sampling Times 12:35 13:04 Sampling Dates Sampling Device Duration Volume Sampled (STP, Dry) Volume Sampled (STP, Wet) Sample Flow Rate Liquid Trap Start Mass Liquid Trap End Mass Silica Trap Start Mass Silica Trap End Mass Total Mass Of Water Vapour Calculated Water Vapour 27/09/2017 MFC / MV mins 30 m³ m³ l/min 5.12 g g g g g 28.0 % v/v Where: MFC stands for Mass Flow Controller, MV stands for Mass View Flowmeter A14 Boiler A Site Visit Report SV10474 Page 18 of 54 CATRT (Version BR) Page 15 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

19 WATER VAPOUR: QUALITY ASSURANCE Sample Runs Leak Test Results Mean Sampling Rate l/min 5.1 PreSampling Leak Rate l/min 0.05 PostSampling Leak Rate l/min 0.05 Allowable Leak Rate l/min 0.10 Leak Test Acceptable Water Droplets Are Water Droplets Present No Measurement Uncertainty Measurement Uncertainty (MU) % 4.2 Allowable MU % 20.0 MU Acceptable % Silica Gel Less than 50% Faded % Test Conditions Ambient Temperature Recorded? Method Deviations Nature of Deviation (x = deviation applies to the associated run) 1 Run Number There are no deviations associated with the sampling employed. x A14 Boiler A Site Visit Report SV10474 Page 19 of 54 CATRT (Version BR) Page 16 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

20 WATER VAPOUR: MEASUREMENT UNCERTAINTY CALCULATIONS Value Standard uncertainty Measured Quantities Symbol Symbol Sampled Volume (STP) Repeatability of Weighing Reading of Balance Leak V m R w R b L uv m m³ ur w g ur b g % Uncertainty as a Percentage Measured Quantities Requirement of Standard Sampled Volume (STP) % % Repeatability of Weighing % 0.36 No Requirement Reading of Balance % 0.50 No Requirement Leak % % Uncertainty in Measurement Sensitivity Coefficient Measured Quantities Symbol Sampled Volume (STP) Repeatability of Weighing Reading of Balance Leak V m R w R b m³ g g L % v/v Measured Quantities Sampled Volume (STP) Repeatability of Weighing Reading of Balance Leak Uncertainty in Result % v/v % v/v % v/v % v/v Combined uncertainty Expanded uncertainty (95% confidence) Expanded uncertainty (95% confidence), estimated with Method Deviations Uncertainty if Water Droplets are present Reported Uncertainty % v/v 0.39 % v/v 0.77 % v/v 0.77 % v/v N/A % v/v 0.77 Expanded uncertainty (95% confidence) Expanded uncertainty (95% confidence), estimated with Method Deviations Uncertainty if Water Droplets are present Reported Uncertainty % 4.2 % % % N/A A14 Boiler A Site Visit Report SV10474 Page 20 of 54 CATRT (Version BR) Page 17 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

21 OXIDES OF NITROGEN (as NO₂): RESULTS SUMMARY, A14 Boiler A Sample Runs Mean Concentration Uncertainty ± Mass Emission g/hr Uncertainty ±g/hr General Sampling Information Standard Technical Procedure Probe Material Filtration Type / Size Heated Head Filter Used Heated Line Temperature Date & Result of Last Converter Check Value EN CATTP21 Stainless Steel 0.1µm Glass Fibre 180 C 04/04/ % Span Gas Type Span Gas Reference Number Nitrogen Monoxide CYL Span Gas Expiry Date 13/07/2019 Span Gas Start Pressure (bar) 160 Gas Cylinder Concentration () Span Gas Uncertainty (%) 2 Zero Gas Type Nitrogen (5 Grade) Number of Sampling Lines Used 1 / 1 Number of Sampling Points Used 1 / 1 NOTE: Dilution performed to achieve correct span value FORMAT: Number Used / Number Required FORMAT: Number Used / Number Required Sample Point I.D.'s A1 Reference Conditions Reference Conditions are: 273K, 101.3kPa, dry gas, 3% oxygen. A14 Boiler A Site Visit Report SV10474 Page 21 of 54 CATRT (Version BR) Page 18 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

22 OXIDES OF NITROGEN (as NO₂): DATA TREND Graphical Trend of Data Oxides of Nitrogen (as NO₂) At Reference Conditions Concentration () :35 12:36 12:37 12:38 12:39 12:40 12:41 12:42 12:43 12:44 12:45 12:46 12:47 12:48 12:49 12:50 12:51 12:52 12:53 12:54 12:55 12:56 12:57 12:58 12:59 13:00 13:01 13:02 13:03 13:04 A14 Boiler A Site Visit Report SV10474 Page 22 of 54 CATRT (Version BR) Page 19 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

23 OXIDES OF NITROGEN (as NO₂): SAMPLING DETAILS & QUALITY ASSURANCE Sampling Details Sampling Times 12:35 13:04 Sampling Dates 27/09/2017 Instrument Range 250 Span Gas Value Quality Assurance Conditioning Unit Temperature Average Temperature C 1.3 Allowable Temperature < C 4.0 Temperature Acceptable Zero Drift CAL 3 CAL 2 CAL 1 Zero Down Sampling Line (Pre) Zero Down Sampling Line (Post) Zero Drift Zero Down Sampling Line (Pre) Zero Down Sampling Line (Post) Zero Drift Zero Down Sampling Line (Pre) Zero Down Sampling Line (Post) Zero Drift Allowable Zero Drift Zero Drift Acceptable ± 5.00 Span Drift CAL 3 CAL 2 CAL 1 Span Down Sampling Line (Pre) Span Down Sampling Line (Post) Span Drift Span Down Sampling Line (Pre) Span Down Sampling Line (Post) Span Drift Span Down Sampling Line (Pre) Span Down Sampling Line (Post) Span Drift Allowable Span Drift ± 5.00 Span Drift Acceptable Test Conditions Run Ambient Temperature Range C 14 Method Deviations Nature of Deviation (x = deviation applies to the associated run) There are no deviations associated with the sampling employed. Run Number 1 x A14 Boiler A Site Visit Report SV10474 Page 23 of 54 CATRT (Version BR) Page 20 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

24 OXIDES OF NITROGEN (as NO₂): MEASUREMENT UNCERTAINTY CALCULATIONS Performance characteristics RUN 1 Limit value (REF) TGN M2 Allowable MU 10.0 % Measured concentration (STP, dry) Ration NO / NO₂ 5 % Range Used Range Used [A] Cal gas conc Conversion 2.05 to MCERTS Range [B] Lower of [A] or [B] Cal gas conc Performance characteristics RUN 1 Response time 60 seconds Number of readings in measurement 30 Repeatability at zero 0.40 % full scale Repeatability at span level 0.40 % full scale Deviation from linearity 0.34 % of value Zero drift 0.50 % full scale Span drift 0.00 % full scale Volume or pressure flow dependence 0.40 % of full scale Atmospheric pressure dependence 0.30 % of value/kpa Ambient temperature dependence 0.18 % full scale/10k Combined interference 0.60 % range Dependence on voltage 0.40 % full scale/10v Converter efficiency 96.2 % Losses in the line (leak) 0.30 % of value Uncertainty of calibration gas blending 1.40 % of value Uncertainty of calibration gas 2.00 % of value Performance characteristic RUN 1 Standard deviation of repeatability at zero use rep at span Standard deviation of repeatability at span level 0.07 Lack of fit 0.25 Drift 0.59 Volume or pressure flow dependence 0.00 Atmospheric pressure dependence 0.11 Ambient temperature dependence 0.03 Combined interference (from MCERTS Certificate) 0.43 Dependence on voltage 0.05 Converter efficiency 0.07 Losses in the line (leak) 0.11 Uncertainty of calibration gas blending 0.50 Uncertainty of calibration gas 0.72 RUN 1 Measurement uncertainty Result Combined uncertainty 1.26 Expanded uncertainty k = Uncertainty corrected to std conds. (O₂) 2.64 (REF) RUN 1 Expanded uncertainty (no O₂) at 95% Confidence 3.98 % of Value Expanded uncertainty (no O₂) at 95% Confidence 1.24 % at ELV Overall Allowable uncertainty (no O₂) at 95% Confidence 10.0 % at ELV Result of Compliance with Uncertainty Requirement in M2 N/A RUN 1 Expanded uncertainty (with O₂) at 95% Confidence 7.89 % of Value Expanded uncertainty (with O₂) at 95% Confidence 6.94 % at ELV Overall Allowable uncertainty (with O₂) at 95% Confidence 12.1 % at ELV Result of Compliance with Uncertainty Requirement in M2 COMPLIANT Requirement for SRM is that Uncertainty should be <10% of the value at the ELV, on a dry gas basis, or if O₂ correction is applied less than 10% + the uncertainty associated with the O₂ correction (using sqrt of sum squares to add uncertainty components). Ref EA TGN M2. A14 Boiler A Site Visit Report SV10474 Page 24 of 54 CATRT (Version BR) Page 21 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

25 OXYGEN: RESULTS SUMMARY, A14 Boiler A Sample Runs Mean Concentration % v/v Uncertainty ±% v/v General Sampling Information Standard Technical Procedure Probe Material Filtration Type / Size Heated Head Filter Used Heated Line Temperature Value EN CATTP21 Stainless Steel 0.1µm Glass Fibre 180 C Span Gas Type Synthetic Air (5 Grade) Span Gas Reference Number CYL Span Gas Expiry Date 07/12/2021 Span Gas Start Pressure (bar) 80 Gas Cylinder Concentration (% v/v) Span Gas Uncertainty (%) 2 Zero Gas Type Nitrogen (5 Grade) Number of Sampling Lines Used 1 / 1 Number of Sampling Points Used 1 / 1 NOTE: Dilution performed to achieve correct span value FORMAT: Number Used / Number Required FORMAT: Number Used / Number Required Sample Point I.D.'s A1 A14 Boiler A Site Visit Report SV10474 Page 25 of 54 CATRT (Version BR) Page 22 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

26 OXYGEN: DATA TREND Graphical Trend of Data Oxygen Oxygen Concentration (% v/v) :35 12:36 12:37 12:38 12:39 12:40 12:41 12:42 12:43 12:44 12:45 12:46 12:47 12:48 12:49 12:50 12:51 12:52 12:53 12:54 12:55 12:56 12:57 12:58 12:59 13:00 13:01 13:02 13:03 13:04 A14 Boiler A Site Visit Report SV10474 Page 26 of 54 CATRT (Version BR) Page 23 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

27 OXYGEN: SAMPLING DETAILS & QUALITY ASSURANCE Sampling Details Sampling Times 12:35 13:04 Sampling Dates 27/09/2017 Instrument Range % v/v 25 Span Gas Value % v/v 5.00 Quality Assurance Conditioning Unit Temperature Average Temperature C 1.3 Allowable Temperature < C 4.0 Temperature Acceptable Zero Drift CAL 3 CAL 2 CAL 1 Zero Down Sampling Line (Pre) % v/v 0.06 Zero Down Sampling Line (Post) % v/v 0.09 Zero Drift % v/v 0.03 Zero Down Sampling Line (Pre) % v/v Zero Down Sampling Line (Post) % v/v Zero Drift % v/v Zero Down Sampling Line (Pre) % v/v Zero Down Sampling Line (Post) % v/v Zero Drift % v/v Allowable Zero Drift ± % v/v 0.25 Zero Drift Acceptable Span Drift CAL 3 CAL 2 CAL 1 Span Down Sampling Line (Pre) % v/v 5.02 Span Down Sampling Line (Post) % v/v 4.89 Span Drift % v/v 0.13 Span Down Sampling Line (Pre) % v/v Span Down Sampling Line (Post) % v/v Span Drift % v/v Span Down Sampling Line (Pre) % v/v Span Down Sampling Line (Post) % v/v Span Drift % v/v Allowable Span Drift ± % v/v 0.25 Span Drift Acceptable Test Conditions Run Ambient Temperature Range C 14 Method Deviations Nature of Deviation (x = deviation applies to the associated run) There are no deviations associated with the sampling employed. Run Number 1 x A14 Boiler A Site Visit Report SV10474 Page 27 of 54 CATRT (Version BR) Page 24 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

28 OXYGEN: MEASUREMENT UNCERTAINTY CALCULATIONS Performance characteristics RUN 1 Limit value N/A %vol TGN M2 Allowable MU 6.0 % Measured concentration 4.18 %vol Range Used 25.0 %vol Cal gas conc %vol Performance characteristics RUN 1 Response time 60 seconds Number of readings in measurement 30 Repeatability at zero 0.04 % full scale Repeatability at span level 0.04 % full scale Deviation from linearity 0.05 % of value Zero drift 0.60 % full scale Span drift 0.00 % full scale Volume or pressure flow dependence 0.20 % of full scale Atmospheric pressure dependence 0.30 % of value/kpa Ambient temperature dependence 0.07 % full scale/10k Combined interference 0.56 % range Dependence on voltage 0.02 % full scale/10v Losses in the line (leak) 0.00 % of value Uncertainty of calibration gas 2.00 % of value Performance characteristic RUN 1 Standard deviation of repeatability at zero use rep at span %vol Standard deviation of repeatability at span level 0.01 %vol Lack of fit 0.01 %vol Drift 0.07 %vol Volume or pressure flow dependence 0.00 %vol Atmospheric pressure dependence 0.02 %vol Ambient temperature dependence 0.01 %vol Combined interference (from MCERTS Certificate) 0.08 %vol Dependence on voltage 0.00 %vol Losses in the line (leak) 0.00 %vol Uncertainty of calibration gas 0.05 %vol RUN 1 Measurement uncertainty Result 4.18 %vol Combined uncertainty 0.15 %vol Expanded uncertainty k = %vol RUN 1 Expanded uncertainty (no O₂) at 95% Confidence 6.81 % of Value Result of Compliance with Uncertainty Requirement in M2 COMPLIANT Requirement for SRM is that Uncertainty should be 0.5%vol absolute or 6% relative whichever is the lower, on a dry gas basis. Ref EA TGN M2. A14 Boiler A Site Visit Report SV10474 Page 28 of 54 CATRT (Version BR) Page 25 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

29 ISO/IEC Accredited Legal Entity, UKAS Accredited Testing Laboratory No Exova (UK) Ltd trading as Exova Catalyst & Exova Catalyst Ireland Unit C5, Emery Court, The Embankment Business Park, Stockport, SK4 3GL EPA AIR EMISSIONS COMPLIANCE MONITORING EMISSIONS REPORT (Prepared on behalf of the EPA by Exova Catalyst EPA Contract No. OEEDS14) Exova Catalyst Ireland, Unit D8 North City Business Park, North Road, Finglas, Dublin 11 E: Your Exova Catalyst Ireland Contact: Nick Kenny ( ) Stack Emissions Testing Report Commissioned by EPA Office of Environmental Enforcement Installation Name & Address Dromore West Co. Cavan Industrial Emissions Licence: PO68702 Stack Reference A14 Boiler B Dates of the Monitoring Campaign 27th September 2017 Job Reference Number PO68702 CAR1701 Report Written by John Glennon Team Leader MCERTS Level 2 MM TE1 TE2 TE3 TE4 Report Approved by Patrick O'Brien Deputy Regional Manager MCERTS Level 2 MM TE1 TE2 TE3 TE4 Report Date 12th October 2017 Version Version 1 Signature of Report Approver DELETE & COVER ME Site Visit Report SV10474 Page 29 of 54

30 CONTENTS TITLE PAGE CONTENTS Summary of Sampling Deviations 2 EXECUTIVE SUMMARY Monitoring Objectives Monitoring Results Monitoring Dates & Times Process Details Monitoring & Analytical Methods Sampling Location Plant Photos / Sample Points APPENDIX 1 Monitoring Personnel & List of Equipment APPENDIX 2 Raw Data, Sampling Equations & Charts Opinions and interpretations expressed herein are outside the scope of Exova Catalyst Ireland's ISO accreditation. This test report shall not be reproduced, except in full, without the written approval of Exova Catalyst Ireland. The testing performed fully meets the technical requirements in Irish EPA Guidance Note, AG2. A14 Boiler B Site Visit Report SV10474 Page 30 of 54 CATRT (Version BR) Page 2 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

31 Executive Summary (Page 1 of 7) MONITORING OBJECTIVES, A14 Boiler B 27th September 2017 Overall Aim of the Monitoring Campaign Exova Catalyst Ireland were commissioned by the EPA Office of Environmental Enforcement to carry out stack emissions testing at on the A14 Boiler B at. The aim of the monitoring campaign was to demonstrate compliance with a set of emission limit values (ELVs) as specified in the Site's Permit. Special Requirements There were no special requirements. Target s Oxides of Nitrogen (as NO₂) A14 Boiler B Site Visit Report SV10474 Page 31 of 54 CATRT (Version BR) Page 3 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

32 Executive Summary (Page 2 of 7) MONITORING RESULTS, A14 Boiler B 27th September 2017 where MU = Measurement Uncertainty associated with the Result Concentration Mass Emission Result MU +/ Limit Result MU +/ Limit Oxides of Nitrogen (as NO₂) ¹ g/hr Oxygen % v/v Dry Water Vapour Stack Gas Temperature Stack Gas Velocity % v/v C m/s Volumetric Flow Rate (ACTUAL) Volumetric Flow Rate (REF) ¹ m³/hr m³/hr Limit NOTE: VOLUMETRIC FLOW RATE & VELOCITY DATA TAKEN FROM THE PRELIMINARY VELOCITY TRAVERSE. ¹ Reference Conditions (REF) are: 273K, 101.3kPa, dry gas, 3% oxygen. A14 Boiler B Site Visit Report SV10474 Page 32 of 54 CATRT (Version BR) Page 4 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

33 Executive Summary (Page 3 of 7) MONITORING DATE(S) & TIMES, A14 Boiler B 27th September 2017 Concentration Mass Emission Sampling Sampling Duration Date(s) Times mins Oxides of Nitrogen (as NO₂) Oxygen Water Vapour Velocity & Volumetric Flow Rate R g/hr /09/ :12 13:41 30 R1 % v/v 2.77 R1 R1 27/09/ :12 13:41 % v/v /09/ :12 13: /09/ :30 11:40 30 All results are expressed at the respective reference conditions. A14 Boiler B Site Visit Report SV10474 Page 33 of 54 CATRT (Version BR) Page 5 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

34 Executive Summary (Page 4 of 7) PROCESS DETAILS, A14 Boiler B 27th September 2017 Standard Operating Conditions Process Status Capacity (of 100%) and Tonnes / Hour Continuous or Batch Process Feedstock (if applicable) Abatement System Abatement System Running Status Fuel Plume Appearance Value Gas Boiler 80% of capacity Continuous Natural Gas N/A N/A Natural Gas N/A A14 Boiler B Site Visit Report SV10474 Page 34 of 54 CATRT (Version BR) Page 6 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

35 Executive Summary (Page 5 of 7) MONITORING & ANALYTICAL METHODS, A14 Boiler B 27th September 2017 Monitoring Analysis Standard Technical ISO Testing Analytical Analytical ISO Analysis MCERTS Procedure Lab Procedure Technique Lab Testing Testing Analysis LOD (Average) Water Vapour Oxides of Nitrogen (as NO₂) Oxygen Velocity & Vol. Flow Rate EN CATTP05 CAT CATTP05 Gravimetric CAT 0.1 % v/v EN CATTP21 CAT Chemiluminescence by Horiba PG EN CATTP21 CAT Dry Zirconia Cell by Horiba PG % EN (MID) CATTP41 CAT Pitot Tube and Thermocouple 1.2 m/s ANALYSIS LABORATORIES (with short name reference as appears in the table above) Exova Catalyst (CAT) ISO Accreditation Number: 4279 SUMMARY OF SAMPLING DEVIATIONS Run Deviation All 1 There are no deviations associated with the sampling employed. A14 Boiler B Site Visit Report SV10474 Page 35 of 54 CATRT (Version BR) Page 7 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

36 Executive Summary (Page 6 of 7) SUITABILITY OF SAMPLING LOCATION Duct Characteristics Location of Sampling Platform Value General Platform Information Value Type Circular Depth m 1.20 Width m Area m² 1.13 Port Depth cm 100 Orientation of Duct Horizontal Number of Ports 1 Sample Port Size 2" BSP Permanent / Temporary Platform Inside / Outside Permanent Inside Platform Details Irish EPA Technical Guidance Note AG1 / EN Platform Requirements Value Sufficient working area to manipulate probe and operate the measuring instruments Platform has 2 levels of handrails (approx. 0.5m & 1.0m high) Platform has vertical base boards (approx. 0.25m high) Platform has chains / self closing gates at top of ladders There are no obstructions present which hamper insertion of sampling equipment Safe Access Available Easy Access Available Sampling Location / Platform Improvement Recommendations The sampling location meets all the requirements specified in Irish EPA Guidance Note AG1 and EN 15259, and therefore there are no improvement recommendations. EN Homogeneity Test Requirements There is no requirement to perform a EN Homogeneity Test on this Stack. Sampling Plane Validation Criteria (from EN 15259) Criteria in EN Traverse 1 Required Compliant Lowest Differential Pressure Pa 6.8 > 5 Pa Mean Velocity m/s 3.32 Lowest Gas Velocity m/s 3.21 Highest Gas Velocity m/s 3.46 Ratio of Above : < 3 : 1 Maximum Angle of Swirl NM NM NM NM NM NM NM No Local Negative Flow Where NM = Not Measured as no Isokinetic sampling was performed. A14 Boiler B Site Visit Report SV10474 Page 36 of 54 CATRT (Version BR) Page 8 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

37 Executive Summary (Page 7 of 7) SAMPLE POINTS Line A where = isokinetic point sampled at = isokinetic point not sampled at = combustion gases sample point = nonisokinetic sample point A14 Boiler B Site Visit Report SV10474 Page 37 of 54 CATRT (Version BR) Page 9 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

38 APPENDICES APPENDIX CONTENTS APPENDIX 1 Stack Emissions Monitoring Personnel, List of Equipment & Methods and Technical Procedures Used APPENDIX 2 Summaries, Calculations, Raw Data and Charts A14 Boiler B Site Visit Report SV10474 Page 38 of 54 CATRT (Version BR) Page 10 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

39 APPENDIX 1 STACK EMISSIONS MONITORING PERSONNEL Position Name MCERTS Accreditation MCERTS Number Technical Endorsements Team Leader John Glennon MCERTS Level 2 MM TE1 TE2 TE3 TE4 Trainee Luke Cregan MCERTS Trainee MM None LIST OF EQUIPMENT Extractive Sampling Instrumental Analysers Miscellaneous Items Equipment Type Equipment I.D. Equipment Type Equipment I.D. Equipment Type Equipment I.D. Control Box DGM (1) Horiba PG250 CAT 9.19 Digital Manometer (1) CAT 3.97 Control Box DGM (2) SELECT Horiba Model (2) Digital Manometer (2) Box Thermocouples (1) SELECT Servomex Model Digital Temperature Meter CAT 3.97 Box Thermocouples (2) Eco Physics CLD 822Mh Stopwatch CAT Umbilical (1) ABB AO2020URAS26 Barometer CAT Umbilical (2) Testo 350 XL Stack Thermocouple (1) CAT Oven Box (1) JCT JCC P1 Cooler CAT Stack Thermocouple (2) Oven Box (2) Heated Probe (1) SELECT FTIR Gasmet Sampling System Stack Thermocouple (3) 1m Heated Line (1) Heated Probe (2) Bernath 3006 FID 1m Heated Line (2) Heated Probe (3) M&C PSS CAT m Heated Line (3) SPitot (1) CAT 21S.42 Mass Flow Controller (1) CAT m Heated Line (1) SPitot (2) Mass Flow Controller (2) CAT m Heated Line (1) LPitot Mass View (1) CAT m Heated Line (1) CAT Site Balance CAT Mass View (2) 20m Heated Line (2) 500g / 1Kg Check Weights CAT SELECT Logger 1 Dual Channel Heater Controller Last Impinger Arm SELECT Logger 2 Single Channel Heater Controller CAT Callipers Bioaerosols Temperature Logger Laboratory Balance Tubes Kit Thermocouple Electronic Refrigerator Tape Measure CAT METHODS & TECHNICAL PROCEDURES USED Water Vapour Oxides of Nitrogen (as NO₂) Oxygen Velocity & Vol. Flow Rate Standard EN EN EN EN (MID) Technical Procedure CATTP05 CATTP21 CATTP21 CATTP41 A14 Boiler B Site Visit Report SV10474 Page 39 of 54 CATRT (Version BR) Page 11 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

40 PRELIMINARY STACK SURVEY: CALCULATIONS General Stack Details Stack Details (from Traverse) Stack Diameter / Depth, D Stack Width, W Stack Area, A Average Stack Gas Temperature, T a Average Stack Gas Pressure Average Stack Static Pressure, P static Average Barometric Pressure, P b Average Pitot Tube Calibration Coefficient, C p m m m² C Pa kpa kpa Value Stack Gas Composition & Molecular Weights Component Conc Conc Conc Volume Molar Density Conc Dry Wet Fraction Mass kg/m³ kg/m³ % v/v % v/v r M p p i CO₂ (Estimated) O₂ N₂ Moisture (H₂O) Where: p = M / p i = r x p Calculation of Stack Gas Densities Determinand Result Dry Density (STP), P STD Wet Density (STP), P STW Dry Density (Actual), P Actual Average Wet Density (Actual), P ActualW kg/m³ kg/m³ kg/m³ kg/m³ Where: P STD = sum of component concentrations, kg/m³ (not including water vapour) P STW = sum of all wet concentrations / 100 x density, kg/m³ (including water vapour) P Actual = P STD x (T STP / (P STP )) x ((P static + P b ) / T a ) P ActualW (at each sampling point) = P STW x (T s / P s ) x (P a / T a ) Calculation of Stack Gas Volumetric Flowrate, Q Duct gas flow conditions Temperature C Actual REF ¹ 0.0 Total Pressure kpa Moisture % Oxygen (Dry) % Gas Volumetric Flowrate (from Traverse) Result Gas Volumetric Flowrate (Actual) m³/hr Gas Volumetric Flowrate (STP, Wet) m³/hr 9949 Gas Volumetric Flowrate (STP, Dry) m³/hr 8339 Gas Volumetric Flowrate REF ¹ m³/hr 8448 A14 Boiler B Site Visit Report SV10474 Page 40 of 54 CATRT (Version BR) Page 12 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

41 PRELIMINARY STACK SURVEY: VELOCITY TRAVERSE TO EN (MID) (1 of 1) Value Date of Survey 27/09/2017 Initial Pitot Leak Check Time of Survey 11:30 11:40 Final Pitot Leak Check Atmospheric Pressure kpa Orientation of Duct Average Stack Static Pressure Pa 69 Pitot Tube, C p Result of Pitot Stagnation Test Pass Number of Lines Available Are Water Droplets Present? No Number of Lines Used Device Used SType Pitot with KIMO MP 200 (500Pa) Value Pass Pass Horizontal Sampling Line A Traverse Depth P Temp Wet Density Velocity Swirl Point m Pa C kg/m³ m/s STATIC (: Pa) 68.9 Mean A14 Boiler B Site Visit Report SV10474 Page 41 of 54 CATRT (Version BR) Page 13 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

42 PRELIMINARY STACK SURVEY: VELOCITY TRAVERSE TO EN (MID) MEASUREMENT UNCERTAINTY (1 of 1) Performance characteristics (Uncertainty Components) Uncertainty Value Standard Uncertainty on the coefficient of the Pitot Tube u(k) Standard Uncertainty associated with the mean local dynamic pressures u( pi) Pa Resolution u(res) Calibration u(cal) Drift u(drift) Lack of Fit u(fit) Overall corrections to dynamic measurements u(cf) Standard uncertainty associated with the molar mass of the gas u(m) φo₂,w φco₂,w Oxygen, dry u(φo₂,d) Carbon Dioxide, dry u(φco₂,d) Water Vapour u(φh₂o) Oxygen, wet u(φo₂,w) Carbon Dioxide, wet u(φco₂,w) Standard uncertainty associated with the stack temperature u(tc) K Standard uncertainty associated with the absolute pressure in the duct u(pc) Pa Atmospheric Pressure u(patm) Static Pressure u(pstat) Standard uncertainty associated with the density in the duct u(ρ) Standard uncertainty associated with the local velocities u(vi) Pa Standard uncertainty associated with the mean velocity u(v) m/s Standard uncertainty associated with the mean velocity (95% Confidence) Uc(v) m/s Standard uncertainty associated with the mean velocity (95% Confidence), relative Uc,rel(v) 7.21 % Standard uncertainty associated with the volume flow rate (95% Confidence) Uc(qV,w) m³/hr u²(a)/a² u²(qv,w)/q²v,w u²(qv,w) u(qv,w) Standard uncertainty associated with the volume flow rate (95% Confidence), relative Uc,rel(qV,w) 8.51 % A14 Boiler B Site Visit Report SV10474 Page 42 of 54 CATRT (Version BR) Page 14 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

43 WATER VAPOUR: RESULTS SUMMARY, A14 Boiler B Sample Runs Mean Concentration % v/v Uncertainty ±% v/v General Sampling Information Standard Technical Procedure Value EN CATTP05 WATER VAPOUR: SAMPLING DETAILS Sample Runs Sampling Times 13:12 13:41 Sampling Dates Sampling Device Duration Volume Sampled (STP, Dry) Volume Sampled (STP, Wet) Sample Flow Rate Liquid Trap Start Mass Liquid Trap End Mass Silica Trap Start Mass Silica Trap End Mass Total Mass Of Water Vapour Calculated Water Vapour 27/09/2017 MFC / MV mins 30 m³ m³ l/min 5.12 g g g g g 24.6 % v/v Where: MFC stands for Mass Flow Controller, MV stands for Mass View Flowmeter A14 Boiler B Site Visit Report SV10474 Page 43 of 54 CATRT (Version BR) Page 15 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

44 WATER VAPOUR: QUALITY ASSURANCE Sample Runs Leak Test Results Mean Sampling Rate l/min 5.1 PreSampling Leak Rate l/min 0.05 PostSampling Leak Rate l/min 0.05 Allowable Leak Rate l/min 0.10 Leak Test Acceptable Water Droplets Are Water Droplets Present No Measurement Uncertainty Measurement Uncertainty (MU) % 4.3 Allowable MU % 20.0 MU Acceptable % Silica Gel Less than 50% Faded % Test Conditions Ambient Temperature Recorded? Method Deviations Nature of Deviation (x = deviation applies to the associated run) 1 Run Number There are no deviations associated with the sampling employed. x A14 Boiler B Site Visit Report SV10474 Page 44 of 54 CATRT (Version BR) Page 16 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

45 WATER VAPOUR: MEASUREMENT UNCERTAINTY CALCULATIONS Value Standard uncertainty Measured Quantities Symbol Symbol Sampled Volume (STP) Repeatability of Weighing Reading of Balance Leak V m R w R b L uv m m³ ur w g ur b g % Uncertainty as a Percentage Measured Quantities Requirement of Standard Sampled Volume (STP) % % Repeatability of Weighing % 0.41 No Requirement Reading of Balance % 0.50 No Requirement Leak % % Uncertainty in Measurement Sensitivity Coefficient Measured Quantities Symbol Sampled Volume (STP) Repeatability of Weighing Reading of Balance Leak V m R w R b m³ g g L % v/v Measured Quantities Sampled Volume (STP) Repeatability of Weighing Reading of Balance Leak Uncertainty in Result % v/v % v/v % v/v % v/v Combined uncertainty Expanded uncertainty (95% confidence) Expanded uncertainty (95% confidence), estimated with Method Deviations Uncertainty if Water Droplets are present Reported Uncertainty % v/v 0.35 % v/v 0.69 % v/v 0.69 % v/v N/A % v/v 0.69 Expanded uncertainty (95% confidence) Expanded uncertainty (95% confidence), estimated with Method Deviations Uncertainty if Water Droplets are present Reported Uncertainty % 4.3 % % % N/A A14 Boiler B Site Visit Report SV10474 Page 45 of 54 CATRT (Version BR) Page 17 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

46 OXIDES OF NITROGEN (as NO₂): RESULTS SUMMARY, A14 Boiler B Sample Runs Mean Concentration Uncertainty ± Mass Emission g/hr Uncertainty ±g/hr General Sampling Information Standard Technical Procedure Probe Material Filtration Type / Size Heated Head Filter Used Heated Line Temperature Date & Result of Last Converter Check Value EN CATTP21 Stainless Steel 0.1µm Glass Fibre 180 C 04/04/ % Span Gas Type Span Gas Reference Number Nitrogen Monoxide CYL Span Gas Expiry Date 13/07/2019 Span Gas Start Pressure (bar) 160 Gas Cylinder Concentration () Span Gas Uncertainty (%) 2 Zero Gas Type Nitrogen (5 Grade) Number of Sampling Lines Used 1 / 1 Number of Sampling Points Used 1 / 1 NOTE: Dilution performed to achieve correct span value FORMAT: Number Used / Number Required FORMAT: Number Used / Number Required Sample Point I.D.'s A1 Reference Conditions Reference Conditions are: 273K, 101.3kPa, dry gas, 3% oxygen. A14 Boiler B Site Visit Report SV10474 Page 46 of 54 CATRT (Version BR) Page 18 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

47 OXIDES OF NITROGEN (as NO₂): DATA TREND Graphical Trend of Data Oxides of Nitrogen (as NO₂) At Reference Conditions Concentration () :12 13:13 13:14 13:15 13:16 13:17 13:18 13:19 13:20 13:21 13:22 13:23 13:24 13:25 13:26 13:27 13:28 13:29 13:30 13:31 13:32 13:33 13:34 13:35 13:36 13:37 13:38 13:39 13:40 13:41 A14 Boiler B Site Visit Report SV10474 Page 47 of 54 CATRT (Version BR) Page 19 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702

48 OXIDES OF NITROGEN (as NO₂): SAMPLING DETAILS & QUALITY ASSURANCE Sampling Details Sampling Times 13:12 13:41 Sampling Dates 27/09/2017 Instrument Range 250 Span Gas Value Quality Assurance Conditioning Unit Temperature Average Temperature C 1.3 Allowable Temperature < C 4.0 Temperature Acceptable Zero Drift CAL 3 CAL 2 CAL 1 Zero Down Sampling Line (Pre) Zero Down Sampling Line (Post) Zero Drift Zero Down Sampling Line (Pre) Zero Down Sampling Line (Post) Zero Drift Zero Down Sampling Line (Pre) Zero Down Sampling Line (Post) Zero Drift Allowable Zero Drift Zero Drift Acceptable ± 5.00 Span Drift CAL 3 CAL 2 CAL 1 Span Down Sampling Line (Pre) Span Down Sampling Line (Post) Span Drift Span Down Sampling Line (Pre) Span Down Sampling Line (Post) Span Drift Span Down Sampling Line (Pre) Span Down Sampling Line (Post) Span Drift Allowable Span Drift ± 5.00 Span Drift Acceptable Test Conditions Run Ambient Temperature Range C 15 Method Deviations Nature of Deviation (x = deviation applies to the associated run) There are no deviations associated with the sampling employed. Run Number 1 x A14 Boiler B Site Visit Report SV10474 Page 48 of 54 CATRT (Version BR) Page 20 of 25 Job Number: CDU0903, Version 1 Industrial Emissions Licence: PO68702