TEES VALLEY LTD Energy from Waste Facility

2009 ANNUAL PERFORMANCE REPORT

DOCUMENT Tees Valley – Energy from Waste Facility TITLE : 2009 Annual Performance Report

ISSUE DATE : January 2010 V2

PREPARED BY: NAME SIGNATURE

Compliance Officer Paula Sinton

Environment Rita Greenwood Support Manager – EfWs

APPROVED BY: NAME SIGNATURE Plant Manager Mark Atkinson

REPORT NAME No. of DISTRIBUTION : Copies SITA – Environment Department – Narborough 1 SITA – Environment Support Manager 1 SITA – Plant Manager 1 Environment Agency Officer 1

SITA Tees Valley P a g e | 2 Annual Performance Report 2009 CONTENTS

1. Introduction 2. Plant description 3. Summary of plant operation 4. Summary of plant monitoring 5. Summary of plant compliance 6. Summary of plant improvements 7. Further information

Appendix 1 – CEMS data graphs Appendix 2 – Notifications Table

SITA Tees Valley P a g e | 3 Annual Performance Report 2009 1. INTRODUCTION

SITA Tees Valley Limited Name of Company

SITA Tees Valley – Energy from Waste Facility Name of Plant

VP3034SG Permit Number

FP3832UU Permit variation Number Haverton Hill Road Address Billingham TS23 1PY

01484 448730 Phone

Rita Greenwood – Environment Support Manager EfWs Contact Name/Position Municipal household waste from local councils: Further information, Stockton-on-Tees description of waste types Hartlepool burned and origin Middlesborough Redcar & Cleveland North Tyneside Northumberland

PLANT DESCRIPTION

This municipal waste incinerator operates 24/7 and can receive up to 2,800 tonnes of municipal waste from local councils per week. The plant has three furnace lines with a combined processing capacity of 375,000 tonnes per annum. The heat produced by waste incineration is used to raise superheated steam which is harnessed to turn a single-cylinder turbine linked to an electricity generator producing 29 MWh of electricity. Power produced, is sold to the National Grid

SITA Tees Valley P a g e | 4 Annual Performance Report 2009 3. SUMMARY OF PLANT OPERATION

The plant has 3 Lines, Line 3 Started operation in May 2009. Incoming waste is delivered to site by refuse collection trucks, it is checked in, weighted, then delivered into the reception hall.

RECEPTION HALL

A large reception hall allows refuse collection trucks to manoeuvre and tip waste safely. Air needed for combustion is drawn into the furnace from here so that odour and dust do not escape from the building.

BUNKER

Waste vehicles reverse to a wheel stop and tip their loads into a large concrete bunker. Mixing of waste occurs as the crane driver sorts the waste looking for unsuitable wastes to be removed, and to improve the homogeneity of the incinerator feedstock.

CONTROL ROOM

The plant’s control room centralises the operation of all equipment, including the grab crane used to mix and load waste into hoppers that feeds the furnace. All on-site functions are monitored automatically and manually. Its systems verify in real time that equipment is functioning properly, continuously monitor the combustion gas, and maximise the efficiency of the entire EfW process.

GRATE AND BOILER

Waste is lifted into the charging hoppers by the crane, from here waste falls into the furnace-charging chute and then onto the grate system for incineration. The thermal energy released from the burning is used to convert water to super-heated steam. At high pressure, this steam drives a turbine to generate electricity.

ELECTRICITY GENERATION

Electricity is generated at 11kv, with an electric capacity of 29 MWh.

BOTTOM ASH

Ash left on the grate after incineration is carried by conveyor to a storage bunker. A magnet above the conveyor extracts ferrous material for recycling. The remaining bottom ash is trucked off-site for recycling.

AIR-COOLED AND WATER-COOLED CONDENSERS

After exiting the turbine, the air stream is cooled and condensed back into water through air condensers for line 3, and river water is used as the cooling media for line 1, and 2. This recovered water is treated and reused in the boilers to produce more steam.

EMISSION CONTROL

The gases from the furnace are subject to a rigorous cleaning process involving selective non-catalytic reduction (SNCR), spray absorbers, and active carbon injection. This

SITA Tees Valley P a g e | 5 Annual Performance Report 2009 removes oxides of nitrogen, acidic gases, dioxins, and heavy metals from the gas stream.

AIR POLLUTION CONTROL RESIDUE (APCR)

The cleaned gas is passed through fine-fabric bag filters to remove solid particles before it is emitted through the stack. The resultant APCR residue, or fly-ash, contains particles from the incineration process, lime used in the spray absorbers, salts and carbon dust. It is stored in a sealed silo until it removed from site for disposal.

EMISSIONS MONITORING

As they pass through the stack, the residual flue gases from the process are continuously monitored before release. Each incinerator line has and independent stack and emissions monitoring system. This data is relayed automatically to the control room.

SURFACE WATER

Surface water run-off exits the installation to a pipeline that discharges to the River Tees. Surface water run offs from fuel delivery areas are protected by oil/water interceptors. Periodic boiler blow down during maintenance of the incinerator are also discharged to this pipeline.

Plant size, including Line 1 Line 2 Line 3 number of lines 14 t/hr for a 14 t/hr for a 17 t/hr for a waste Calorific waste Calorific waste Calorific Value of 10MJ/kg Value of 10MJ/kg Value of 10MJ/kg

Annual waste throughputs 256609 tonnes Total plant operational Line 1 Line 2 Line 3 hours in the year and reasons for any significant 5028 hrs 5944 hrs 4160.80 hrs outages (e.g. annual Planned Shutdowns shutdown, abatement 14 th Feb-7th March 27 th Feb-19 th plant failure, boiler failure th etc) March, 29 Nov- 13 th Dec Unplanned Shutdowns Fire – 30 th Aug- Fire – 30 th Aug-9th Fire – 30 th Aug-3rd 10 th Nov Sept Sept Steam Leaks Steam Leaks

Other Residues produced Bottom ash APCR metals (specify) tonnes

Amount of each residue, 55068 10763 6409 including metals (where appropriate) recycled/land filled Electricity 88125 MWh Produced/exported

SITA Tees Valley P a g e | 6 Annual Performance Report 2009

ANNUAL WASTE BREAKDOWN

Waste types EWC code Tonnes Mixed Municipal waste 20 03 01 256609

4. SUMMARY OF PLANT MONITORING

Permit monitoring requirements

Emission Substance / Emission Monitoring Frequency Point Parameter Limit Value 30 mg/m 3 over minimum 1 hour A1, A2, A3 Biannual, quarterly line 3 Hydrogen chloride period

A1, A2, A3 Hydrogen chlori de 60 mg/m 3 ½-hr average Continuous

A1, A2, A3 Hydrogen chloride 10 mg/m 3 daily average Continuous

A1, A2, A3 2 mg/m 3 over minimum 1 hour Biannual, quarterly line 3 Hydrogen fluoride period

A1, A2, A3 100 mg/m 3 (average of ½ -hour averages) over minimum 4 hour Biannual, quarterly line 3 Carbon monoxide period

A1, A2, A3 100 mg/m 3 ½-hr average Continuous Carbon monoxide

A1, A2, A3 50 mg/m 3 daily average Continuous Carbon monoxide

A1, A2, A3 200 mg/m 3 (average of ½ -hour averages) over minimum 4 hour Biannual, quarterly line 3 Sulphur dioxide period

A1, A2, A3 Sulphur dioxide 200 mg/m 3 ½-hr average Continuous

A1, A2, A3 Sulphur dioxide 50 mg/m 3 daily average Continuous

A1, A2, A3 20 mg/m 3periodic over minimum Biannual, quarterly line 3 Particulates 1-hour period

A1, A2, A3 Particulates 30 mg/m 3 ½-hr average Continuous

A1, A2, A3 Particulates 10 mg/m 3 daily average Continuous

A1, A2, A3 20 mg/m 3periodic over minimum Biannual, quarterly line 3 Total Organic Carbon (TOC) 1-hour period

SITA Tees Valley P a g e | 7 Annual Performance Report 2009 Emission Substance / Emission Monitoring Frequency Point Parameter Limit Value A1, A2 , A3 Total Organic Carbon (TOC) 20 mg/m 3 ½-hr average Continuous

A1, A2, A3 Total Organic Carbon (TOC) 10 mg/m 3 daily average Continuous

400 mg/m 3 (average of ½ -hour A1, A2, A3 Oxides of nitrogen (NO and NO 2 averages) over minimum 4 hour Biannual, quarterly line 3 expressed as NO 2) period

Oxides of nitrogen (NO and NO 2 A1, A2, A3 400 mg/m 3 ½-hr average Continuous expressed as NO 2)

Oxides of nitrogen (NO and NO 2 A1, A2, A3 200 mg/m 3 daily average Continuous expressed as NO 2)

0.05 mg/m 3 over minimum 30 A1, A2, A3 Cadmium & thallium and their Biannual, quarterly line 3 minute, maximum 8 hour period compounds (total) 0.05 mg/m 3 over minimum 30 A1, A2, A3 Biannual, quarterly line 3 Mercury and its compounds minute, maximum 8 hour period

0.5 mg/m 3 over minimum 30 A1, A2, A3 Sb, As, Pb, Cr, Co, Cu, Mn, Ni and Biannual, quarterly line 3 minute, maximum 8 hour period V and their compounds (total) 0.1 ng/m 3 over minimum 6 hour, A1, A2, A3 Biannual, quarterly line 3 Dioxins / furans (I-TEQ) maximum 8 hour period

A1, A2, A3 Dioxin-like PCBs (WHO-TEQ No limit applies Biannual, quarterly line 3 Humans / Mammals)) A1, A2, A3 No limit applies Biannual, quarterly line 3 Dioxin-like PCBs (WHO-TEQ Fish) A1, A2, A3 No limit ap plies Biannual, quarterly line 3 Dioxin-like PCBs (WHO-TEQ Birds)

A1, A2, A3 Dioxins / furans (WHO-TEQ No limit applies Biannual, quarterly line 3 Humans / Mammals) A1, A2, A3 No limit applies Biannual, quarterly line 3 Dioxins / furans (WHO-TEQ Fish) A1, A2, A3 No limit applies Biannual, quarterly line 3 Dioxins / furans (WHO-TEQ Birds)

A1, A2, A3 Poly-cyclic aromatic hydrocarbons No limit applies Biannual, quarterly line 3 (PAHs) A1 , A2, A3 Nitrous Oxide No limit applies Biannual, quarterly line 3

A1, A2, A3 Ammonia No limit app lies Continuous

S1 Visible oils and greases None visible Daily

Bottom ash Total Organic Carbon 3% Quarterly line 1&2, monthly line 3

Sb, Cd, Tl, Hg, As, Pb, Cr, Co, Cu, Quarte rly line 1&2 , monthly line 3 Bottom ash & Mn, Ni, V, Zn and their compounds No limit applies APCR (total)

Bottom ash & Quarterly line 1&2 , monthly line 3 Dioxins/furans and dioxin like PCBs No limit applies APCR

SITA Tees Valley P a g e | 8 Annual Performance Report 2009 Annual Reports & Quarterly Reports

Parameter Limits/units Frequency Water Usage Annual Energy usage Annual Performance Indicators Annual Waste Disposal/Recovery Annual Pollution Inventory Annual Water Abstraction Weekly Total Municipal waste incinerated tonnes Quarterly Total Commercial waste incinerated tonnes Quarterly Electrical energy exported KWhr s Quarterly Electrical energy used KWhrs Quarterly Electrical energy imported KWhrs/tonne Quarterly Fuel oil consumption kg/tonne Quarterly Mass of bottom ash produced kg/tonne Quarterly Mass of bottom APC residues produced kg/tonne Quarterly Ammonia consumption kg/tonne Quarterly PAC consumption kg/tonne Quarterly Lime consumption kg/tonne Quarterly Water consumption m3/tonne Quarterly Water Usage tonnes Quarterly

CEMS Data The data collected from the CEMS has been represented in graphical form an example of which is shown below. The graphs for line 1, 2 & 3 are in appendix 1.

Hydrogen Chloride Line 1

The data for each parameter monitored is represented in an individual chart. Data represented is:

½ Hourly Average ELV - shows the ½ hourly emission limit value.

Monthly ½ Hourly mean - shows the average value for ½ hourly continuous monitoring for each month.

Monthly ½ Hourly Average maximum- shows the maximum of any half hourly average value.

Daily Average ELV - shows the daily emission limit value.

Monthly Daily mean - shows the average values for average daily continuous monitoring over the month.

Monthly Daily Average maximum shows the maximum value for daily continuous monitoring over the month.

The CEM’s data reported has taken into account any measurement uncertainty.

SITA Tees Valley P a g e | 10 Annual Performance Report 2009

Table showing the annual emissions of monitored emissions.

Data taken From PIEDC Pollution Inventory EDC reporting Form as reported to the Environment agency on their annual return.

Total Notifiable releases Reporting brt (below recorded Parameter Threshold threshold) or releases Carbon Dioxide 10,000,000kg 256,609,000kg Appendix 2 Line 1 Line 2 Line 3 Ammonia 1000kg brt brt brt brt Antimony Sb 1kg 1.41 6.49 brt 8.62 Arsenic As 1kg brt 5.65 brt 5.92 Cadmium Cd 1kg 3.41 8.61 2.47 14.49 Chromium Cr 10kg 35.3 16.1 16.0 67.4 Copper Cu 10kg brt brt brt 10.86 Lead Pb 100kg brt brt brt brt Manganese Mn 10kg brt brt brt 12.19 Mercury Hg 1kg brt 2.48 1.01 3.54 Nickel Ni 10kg brt 19.1 brt 27.91 Vanadium V 10kg brt brt brt brt Chlorine and inorganic 10,000kg brt brt brt brt chlorine compounds - as HCl Dioxins and furans 0.00001kg 0.0000 0.0000 0.000 0.000 (PCDDs/PCDFs) 177 102 0146 0425 Fluorine and inorganic 1,000kg brt brt brt brt fluorine compounds – as HF Nitrogen oxides (NO 100,000kg brt brt brt 217,3 and NO 2) as NO 2 66 Non-methane volatile 10,000kg brt brt brt brt organic compounds Particulate matter 10,000kg brt brt brt brt Polychlorinated 0.00001kg 0.0000 0.0000 0.000 0.000 biphenyls (PCBs) 188 181 0182 0551

Sulphur oxides (SO 2 100,000kg brt brt brt brt and SO 3) as SO 2

SITA Tees Valley P a g e | 11 Annual Performance Report 2009 •

5. SUMMARY OF PLANT COMPLIANCE

Table showing percentage of the operating time the plant was in compliance with the permit conditions.

Pollutants measured % of operational time plant was in compliance Line 1 Line 2 Line 3 99.97% 99.91% 100% Particulates 100% 100% 100% Oxides of nitrogen 99.92% 99.89% 99.99% Sulphur dioxide 99.87% 99.81% 99.99% Carbon monoxide 99.99% 99.92% 99.99% Total Organic Carbon 99.97% 99.91% 99.99% Hydrogen chloride 100% 100% 100% Mercury 100% 99.98% 100% Cadmium & thallium Sb, As, Pb, Cr, Co, Cu, Mn, Ni, and 100% 100% 100% V, including their compounds 100% 100% 100% Dioxins/furans 100% 100% 100% Hydrogen fluoride

Table showing non-compliance notified to the Environment Agency To date we have had 75 breaches this broken down into the following:

Line 1 – 27 4-Part C 18-Part A&B Line 2 – 26 6 Part C 19-Part A&B Line 3 – 22 1-Part C 14-Part A&B

More information on the above breaches can be found in the Appendix 2 – Notifications Table

To date we have had 29 Site Warning these comprise of:

21- CCS 4 scores 8 – CCS 3 scores

SITA Tees Valley P a g e | 12 Annual Performance Report 2009

6. SUMMARY OF PLANT IMPROVEMENTS

Brief description of any plant improvements made to reduce environmental impact.

Table showing permit improvement conditions progress

Ref Details of improvement condition IC1 Submitted to the EA 04.08.09 IC2 Submitted to the EA 05.11.09 IC3 Submitted to the EA 31.07.09 IC4 Submitted to the EA 31.07.09 IC5 Submitted to the EA 04.08.09 IC6 Extension requested 13.11.09 until 28.02.10 IC7 Submitted to the EA 20.11.09 IC8

Summary of plant improvements: As required by Variation Notice Number EA/EPR/VP3034SG/V003, 11 th December 2009

IC1 Composition of boiler blow-down water The operator shall analyse the composition of boiler blow-down water utilising representative samples from lines A1 and A2, and line A3. A report shall be submitted to the Agency detailing the methods used and results obtained, together with data relating to the discharge frequencies of this effluent to emission point SW4. The report shall also include an impact assessment (for example H1) for the discharge of this stream to the River Tees. The results from this assessment may be used for the setting of limits or any additional monitoring requirements within Permit condition 2.2.2.8.

IC2 Environmental impact assessment.

SITA Tees Valley P a g e | 13 Annual Performance Report 2009 The operator shall undertake an environmental impact assessment

(for example H1) for emissions of Nitrous Oxide (N 2O) from the installation taking into account potential contributions of N 2O towards global Warming. The results shall be submitted to the Agency together with a report detailing and indentified improvements. This shall include, but not be limited to, proposals for the monitoring of Nitrous Oxide

(N 2O) emissions for the incinerator lines 1 and 2, in accordance with Indicative BAT requirements for the control of point-source emissions to air (2.2.1.2-36) SGN S5.01 “Guidance for the Incineration of Waste and Fuel Manufactured from or Including Waste”. Future monitoring requirements may be imposed within condition 2.10.4 of the Permit following Completion of this condition.

IC3 Residence time, the minimum combustion temperature, and the oxygen content of the exhaust gasses from line 3 The Operator shall verify the residence time, the minimum combustion temperature, and the oxygen content of the exhaust gasses from line 3 in accordance with Article 11(3) of the Waste Incineration Directive. A summary report shall be provided to the Agency documenting the findings.

IC4 Performance of Continuous Emissions Monitors for release point A3

The Operator shall calibrate and verify the performance of Continuous Emissions Monitors for release point A3 and parameters specified within table 2.2.2 to BS EN 14181 and submit a summary report to the Environment Agency as evidence of compliance with the requirements of BS EN 14181.

IC5 Noise assessment

SITA Tees Valley P a g e | 14 Annual Performance Report 2009 The Operator shall undertake a noise assessment during normal operations for incineration line A3 in accordance with the procedures given in BS4142: 1997 (Rating industrial noise affecting mixes residential and industrial areas) and BS7445: 2003 (Description and measurement of environmental noise) or other methodology as agreed with the Agency – in order to verify the assessment provided within the application. The assessment shall include, but not be limited to: A view of the noise sources from the facility. Where any noise source(s) are identified as exhibiting tonal contributions, they shall be quantified by means of frequency analysis. A review of noise levels from static plant, A review of predicted noise levels from line A3 in order to substantiate those stated within the application. A report shall be provided to the Agency detailing the findings of the assessment.

IC6 Size distribution of the particulate matter

The Operator shall submit a proposal to the Agency to carry out tests to determine the size distribution of the particulate matter in the exhaust gas emissions to air from emission points A3,

identifying the fractions within the PM 10 PM 2.5 and PM 1.0 ranges. The proposal shall include a timetable to carry out such tests and produce a report on the results. On receipt of written agreement by the Agency to the proposal and the timetable, the Operator shall carry out the tests and submit to the Agency a report on the results. Report on size distribution tests to be submitted to the Agency within 2 months of the end of the agreed timetable.

IC7 Monitoring frequencies for monitoring Ammonia (NH 3) and

Nitrous Oxide (N 2O) emissions

SITA Tees Valley P a g e | 15 Annual Performance Report 2009 The Operator shall access current monitoring frequencies for monitoring Ammonia (NH 3) and Nitrous Oxide (N 2O) emissions from emission points A1, A2 and A3, and shall consider options available for the implementation of a continuous monitoring system. A written summary shall be provided to Agency documenting the findings, together with a timetable for the implementation of any improvements identified.

IC8 SPMP The Operator shall update the Site Protection and Monitoring Plan in accordance with Permit condition 4.1.8 (VP3034SG), taken into account all relevant Agency Technical Guidance, including horizontal guidance note H7. The updated plan shall be submitted to the Agency in writing.

IC9 Bag Filter by-pass opens The operator shall undertake a review of the conditions in which the bag filter by-pass opens and assess the implications if the by- pass were not open under such conditions. A written summary report shall be provided to the Environment Agency documenting the findings, together with a timetable for the implementation of any improvements identified. The report shall also include a written environmental impact assessment for those situations where the filter by-pass will open.

IC10 Bag Filter by-pass during start up & shut down The operator shall undertake a review of the use of the bag filter by-pass during start up and shut down of all incineration lines. A written summary report shall be provided to the Environment Agency documenting the findings, together with a timetable for the implementation of any improvements identified. The report shall also include a written environmental impact assessment for any periods where the bag filter by-pass is opening during the start up sequence.

IC11 Acid Gases

SITA Tees Valley P a g e | 16 Annual Performance Report 2009 The operator shall undertake a review of the control of acid gases (in particular sulphur dioxide) in relation to the plant and control philosophy so as to minimise plant disturbances and compliance with limits in table 2.2.2 of their permit. A written summary report shall be provided to Environment Agency documenting findings, together with a timetable for the implementation of any improvements identified.

FURTHER INFORMATION

Further information available at www.sita.co.uk

APPRENDIX 1

Releases to air graphs

Hydrogen chloride

Sulphur dioxide

Carbon monoxide

Oxides of nitrogen

Total Organic Carbon (VOC)

Particulates

Ammonia

SITA Tees Valley P a g e | 17 Annual Performance Report 2009

RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A1

Location: Teesside Energy from Waste Plant Parameter: HCL Reporting Period: 2009

RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A1

Location: Teesside Energy from Waste Plant Parameter: SO2 Reporting Period: 2009

SITA Tees Valley P a g e | 19 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A1

Location: Teesside Energy from Waste Plant Parameter: NOx Reporting Period: 2009

SITA Tees Valley P a g e | 20 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A1

Location: Teesside Energy from Waste Plant Parameter: CO Reporting Period: 2009

SITA Tees Valley P a g e | 21 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A1

Location: Teesside Energy from Waste Plant Parameter: VOC Reporting Period: 2009

SITA Tees Valley P a g e | 22 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A1

Location: Teesside Energy from Waste Plant Parameter: Particulates Reporting Period: 2009

SITA Tees Valley P a g e | 23 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A1

Location: Teesside Energy from Waste Plant Parameter: Ammonia Reporting Period: 2009

SITA Tees Valley P a g e | 24 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A2

Location: Teesside Energy from Waste Plant Parameter: HCl Reporting Period: 2009

SITA Tees Valley P a g e | 25 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A2

Location: Teesside Energy from Waste Plant Parameter: SO2 Reporting Period: 2009

SITA Tees Valley P a g e | 26 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A2

Location: Teesside Energy from Waste Plant Parameter:NOx Reporting Period: 2009

SITA Tees Valley P a g e | 27 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A2

Location: Teesside Energy from Waste Plant Parameter:CO Reporting Period: 2009

SITA Tees Valley P a g e | 28 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A2

Location: Teesside Energy from Waste Plant Parameter: VOC Reporting Period: 2009

SITA Tees Valley P a g e | 29 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A2

Location: Teesside Energy from Waste Plant Parameter: Particulates Reporting Period: 2009

SITA Tees Valley P a g e | 30 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A2

Location: Teesside Energy from Waste Plant Parameter: Ammonia Reporting Period: 2009

SITA Tees Valley P a g e | 31 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A3

Location: Teesside Energy from Waste Plant Parameter: HCl Reporting Period: 2009

SITA Tees Valley P a g e | 32 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A3

Location: Teesside Energy from Waste Plant Parameter: SO2 Reporting Period: 2009

SITA Tees Valley P a g e | 33 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A3

Location: Teesside Energy from Waste Plant Parameter: NOx Reporting Period: 2009

SITA Tees Valley P a g e | 34 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A3

Location: Teesside Energy from Waste Plant Parameter: CO Reporting Period: 2009

SITA Tees Valley P a g e | 35 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A3

Location: Teesside Energy from Waste Plant Parameter: VOC Reporting Period: 2009

SITA Tees Valley P a g e | 36 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A3

Location: Teesside Energy from Waste Plant Parameter: Particulates Reporting Period: 2009

SITA Tees Valley P a g e | 37 Annual Performance Report 2009 RELEASES INTO AIR ANNUAL MONITORING SUMMARY

Operator: SITA Tees Valley Limited License No: VP3034SG Release Point: A3

Location: Teesside Energy from Waste Plant Parameter: Ammonia Reporting Period: 2009

SITA Tees Valley P a g e | 38 Annual Performance Report 2009 APPENDIX 2 – Notifications Table

Paramete Date Reason Actions Taken r TOC 01.07.09 The TOC exceedance occurred during start up, Variation submitted to define when the first grab of waste was placed into the start-up and Shut-down furnace definitions 20.15mg/m 3 @ 39,200m 3/hr TOC and 16.07.09 The compressed air system failed and this caused Repairs to air compressor CO the furnace to trip. The variable speed drive and system. the oil compressor both failed on the air compressor system. CO –Average 253.50 mg/m 3 , TOC -28.37mg/m 3 TOC,CO & 30.07.09 The carbon monoxide and TOC exceedance Variation submitted to define Dust occurred within 1.5 hours of start up of the plant. start-up and Shut-down The particulate exceedance occurred due to dust definitions settling in the pipe work during shutdown. The by- pass did not open during normal operations. CO Average233.99 mg/m 3 , TOC Average 22.99mg/m 3 , Dust Average 49.67 mg/m 3 TOC & CO 04.08.09 There was a small explosion in the furnace from an Every effort is made to remove unknown source within the waste fuel. This caused visible non-conforming waste a loss of negative pressure in the furnace, and loss delivered with normal waste. of the primary air fan due to it tripping. HCl, TOC, 03.10.09 The ID fan tripped due to failure of the main The cable was replaced with CO breaker. The wiring to the breaker burnt out oversized wiring on both lines. indicating the cable had been undersized. HCl 87.8mg/m 3 CO 274mg/m 3 TOC 20.61mg/m 3 HCL,CO & 14.11.09 The plant had an ID fan trip. At the time there was Repair to networking system TOC a networking problem to the flue gas treatment fibre optic cable. Defect plant. notification sent to line 3 The event also coincided with a combustion control principal contractor. system function group dropping out of auto Events being monitored and control. item discussed with line 3 CO 395.5mg/m 3 HCl 62.82mg/m 3 TOC 24.8mg/m 3 principal contractor. NOx 25.04.09 A relatively small error in the daily average Extra ammonia was added to calculation within the monitoring system led to a the gas stream to reduce the false impression that we were compliant. NOx level. 202mg/m 3 NOx 04,15,16 Water to the system had been contaminated by Contaminated pipework has .07.09 water from the lime mixing system. Only 1 SNCR been replaced, and water lance was operational. sourced from ‘clean’ supply. All 212.82mg/m 3 SNCR lances and nozzles have been cleaned and replaced. Metals 27.07.09 The operation of the bag filter, and carbon dosing No cause found checked, and within operational parameters. Periodic testing conducted by accredited company and results re-checked. Cadmium and thallium re- tested and found to be within emission limits, 0.00096mg/Nm 3 CO 12.05.09 A tube leak occurred in the furnace which was The tube leak was repaired. A sufficiently large to affect the ID fan and burners. working party from the technical Average ½ hr emission 236 mg/m 3 team is reviewing the tube leak incidents to identify long term solution to prevent tube leaks.

CO 15.05.09 The carbon monoxide exceedance occurred during Variation submitted to define start up, when the first grab of waste was placed start-up and Shut-down into the furnace. definitions 157 mg/m 3 CO 20.05.09 Chemical used to treat river The plant was being shutdown to allow work to be water to be changed to one carried out on the condenser. The work was being containing biocide. carried out on the condenser due to bio accumulation from the river water. The river water is treated with chemicals which previously had contained biocide. Average 207 mg/m 3 @ 60,300 m 3/hr CO 25.05.09 Oil circulation pump put into There was a low level of waste on the grate caused manual. by the grate hydraulics stopping due to high oil temperature. Average 233mg/m 3 @ 92,100 m 3/hr CO 25.05.09 Preventative maintenance Crane failure resulting in low level of waste in the routines are in place, contract furnace. maintenance routines are in 195.97mg/m 3 40462@ m 3/hr place, statutory inspections by contract are in place for all cranes CO 05.06.09 A tube leak occurred in the furnace which was The tube leak was repaired. A sufficiently large to affect the ID fan and burners. working party from the technical Average 234 ½ hr emission mg/m 3 team is reviewing the tube leak incidents to identify long term solution to prevent tube leaks. CO 02.07.09 The ID fan tripped when lightening hit the building. Additional lightening protection Average 300.35mg/m 3 119,865@ m 3/hr to be installed. CO 08,09,10 The feed water pump failed due to an electrical Electrical connect repaired. .07.09 connection fault, this caused the boiler water level to drop, and the furnace to trip. Average 153mg/m 3 @ 68,885m 3/hr CO, VOC, 12.07.09 Variation submitted to define The exceedance occurred just after start up. Dust start-up and Shut-down CO-261.6mg/m 3 @ 520m 3/hr VOC-29.5mg/m 3 @ definitions 520m 3/hr Dust-40.2mg/m 3 @ 520m 3/hr CO & Dust 16.07.09 The exceedance occurred when a bag filter came Variation submitted to define back online after being changed. The dust levels start-up and Shut-down were high and passed through the bags, and the definitions bags took a while to coat with residues. Dust -Average 34mg/m 3 @ 76,200m 3/hr CO- 179.23mg/m 3 @ 75,700m 3/hr CO 18.07.09 The carbon monoxide exceedance occurred during Variation submitted to define start up of the plant. start-up and Shut-down Average 750mg/m 3 @ 27,531m 3/hr definitions CO 11.06.09 The exceedance occurred during the shutting down Variation submitted to define of the plant. start-up and Shut-down definitions CO 20.07.09 The grate in the furnace sticking. Project in progress to review 112.26mg/m 3 @ 132,172m 3/hr design improvements. CO 15.08.09 The grate in the furnace sticking. Project in progress to review 246.78mg/m 3 @ 67680m 3/hr design improvements. CO 15.08.09 The carbon monoxide exceedance occurred during Variation submitted to define start up of the plant. start-up and Shut-down 301.4mg/m 3 @19906 m 3/hr definitions

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CO 21.08.09 The ID fan tripped causing a carbon monoxide No cause found exceedance. The investigation found no cause for the ID fan trip, but SITA will continue to monitor and evaluate such trips. 175.7mg/m 3 @ 19033m 3/hr CO 25.08.09 A ram feed fault occurred, the ram was reset but No cause found no cause was found. SITA will continue to monitor and evaluate such feed ram faults. Average 282.85mg/m 3 @ 43508m 3/hr CO 15.10.09 All plant drawings being A contractor was working on the PAC system. The reviewed amended if required wiring drawing being used was incorrect. This and a defect notice raised with resulted in the wrong termination being broken, the build contractor which was connected to another part of the flue gas treatment system. 357.5mg/m 3 @ 17581m 3/hr

CO 17.09.09 Build contractor to review There was a rapid increase in steam production combustion control. and lack of response from the combustion control system. 311mg/m 3 @ 27778m 3/hr 139mg/m 3 @ 243598m 3/hr CO 04.11.09 Build contractor to engineer There was ingress of air from the bottom ash change to the level indicator conveyor area due to the water level in the system system. dropping. The water was not being replaced automatically as there was an instrument level fault, which did not highlight the low waster level. 266.6mg/m 3 @ 25930 m 3/hr CO 19.11.09 The related combustion control There was a loss of oxygen control. The system problems are being combustion control system was in automatic but discussed with the line 3 had tripped several times at 15.10. principal contractor. A defect 198.6mg/m 3 @ 25943 m 3/hr and rectification notification has been raised. CO 20.11.09 Continual monitoring of waste There was a blockage in the feed chute by waste being delivered to site. not significantly large enough to be spotted by the crane operator. . The blockage was cleared by the shift operational team, and auxiliary burns switch on to maintain the temperature in the furnace. 122.77mg/m 3 @ 72663 m 3/hr HCl 05.06.09 Solids were found in a lime slurry hose, but not in Waste feed was stopped to the usual hoses where blockages are found. carry out investigation into why there was a blockage. The hose replacement frequency has been increased. HCl 09.06.09 A problem occurred with the lime milk injection. The lime milk system was Lime dosing was set at maximum but there was cleaned and flushed. insufficient flow rate. Average 80mg/m 3 @ 27,400 m 3/hr HCl 09.07.09 The abatement system failed due to a sticking slide Maintenance and repair of the valve. slide valve.

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HCl 20.06.09 The exceedance occurred just after start up. Variation submitted to define 110mg/m 3 @ 80,800m 3/hr start-up and Shut-down definitions SO2 04.05.09 Manual control of lime slurry injection at maximum Inhibits of lime slurry delivery rate flushes to be installed to lime slurry control systems, plus automatic instigation of maximum slurry injection above a set emission level. SO2 25.05.09 A rubber hose was found blocking a lime slurry The lines cleared and the line. An investigation was carried out but no cause peristaltic pump hose replaced with hose from original supplier. for the blockage from rubber hosing was found. A further incident occurred on the 07.06.09, and the plant was stopped and the lime slurry system inspected. The rubber hose was found to be from a peristaltic pump hose lining. The hose was supplied by a different supplier. SO2 07.06.09 A rubber hose was found blocking a lime slurry The lines cleared and the line. An investigation was carried out but no cause peristaltic pump hose replaced for the blockage from rubber hosing was found on with hose from original supplier. the 25.05.09. A further incident occurred on the 07.06.09, and the plant was stopped and the lime slurry system inspected. The rubber hose was found to be from a peristaltic pump hose lining. The hose was supplied by a different supplier. SO2 18.06.09 The plant was being shutdown and placed onto Variation submitted to define burners with no waste being incinerated to allow start-up and Shut-down repairs to be carried out on the condenser. During definitions this time the air flow dropped, and the abatement plant closed down. 242.87mg/m 3 @ 48,000m 3/hr SO2 20.06.09 An abnormal blockage occurred and this tripped All pipework was cleaned and the lime milk and the stand-by pump. flushed and the lance was changed. SO2 25.06.09 Problems occurred with the lime milk injection. All pipework was cleaned and flushed, all normal action was carried out to prevent exceedance. SO2 13.07.09 A lime milk delivery hose failed. The system Review maintenance routines of switched over to the stand-by pump. The isolation lime milk system, and spares valve on the duty pump passed lime milk and this available. reduced flow to the abatement plant. Average 372mg/m 3 @96,000, m 3/hr SO2 08.08.09 There was a lime blockage in the lime slurry filters. Specialist company on site The filters were changed 3 times, and the pipe evaluating lime slurry mixing. work/lime injection system washed through to The evaluation of installing a remove the blockage. new abatement system is being 250.57mg/m 3 @ 81331 m 3/hr reviewed by SITA’s technical department. SO2 10.08.09 The sulphur dioxide emissions peaked, and the Continued routine inspection of amount of sulphur dioxide generated could not be waste and pit mixing. controlled. The lime control was switched to manual and maximum dosing rate. Sulphur dioxide peak possibly due to ‘bad’ waste in the waste pit 272.99mg/m 3 @ 79652m 3/hr SO2 23.08.09 There was an accumulation of lime product on the The blockage was cleared. sides of the reaction chamber (GSA). The residue fell and partially blocked the flue gas pathway, and reduced the flue gas flow. This lead to a reduction

SITA Tees Valley P a g e | 42 Annual Performance Report 2009 of lime slurry injection. SO2 25.09.09 The nozzle was changed. There was a partial blockage from lime milk in the Nozzles changed on weekly lime injection nozzle. basis, and cleaning of lime 214.49mg/m 3 @ 170,614m 3/hr filters on a daily shift routine.

SO2 29.10.09 The flue gas treatment system was unable to cope Initiation of plant shutdown with the level of sulphur dioxide in the flue gas. SO2 29.11.09 The sulphur dioxide emissions peaked between The present lime delivery 10.30 and 12.00. The lime control was switched to system is under review and re- manual and maximum dosing rate. The increased engineering modifications to be lime dosing did not have an effect on the sulphur implemented in 2010/2011 dioxide emissions levels, and waste feed was stopped at 11.00. Dust 16.04.09 A failing of communications to and from a Communications re-established particular PLC (INC2) led to a perceived fault condition which generated a bag filter bypass damper open signal and subsequent operation. The automatic opening of this bypass damper under fault conditions has now been inhibited and will transfer to manual operation under emergency conditions only. Dust 11.06.09 The differential pressure across the bag filters Procedure to be communicated became too high, and the bag filter by-pass to all shifts to reduce load to opened to allow the differential pressure to drop prevent by-pass opening, and during a bag filter change. how to set up bag filter 60mg/m 3 @ 60,500 m 3/hr compartment change while online. Manual key switch for bag filter by-pass to be installed. Dust 20.06.09 Variation submitted to define The particulates exceedance occurred during start start-up and Shut-down up. During shutdown dust settles in the ducting. definitions Average 35mg/m 3 @ 88,300m 3/hr Bypass 21.05.09 Bag filter by-pass following maintenance of the air Compressed air system set up compressors and dip in air pressure. to allow compressed air system to be operated on 2 compressors, and change to system to be signed off by contractor. Manual key switched for bag filter by-pass to be installed. Bypass 24.05.09 The bag filter by-pass opened when one bag Procedure to be communicated compartment was taken offline due to a broken to all shifts to reduce load to rotary valve. The differential pressure across the prevent by-pass opening, and bag filters became too high, and the bag filter by- how to set up bag filter pass opened to allow the differential pressure to compartment change while drop. online. Manual key switch for bag filter by-pass to be installed.

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Bypass 24.06.09 The bypass damper opened momentarily due to Procedure to be communicated high differential pressure across the bag filter to all shifts to reduce load to housing, while changing the filter bags on a prevent by-pass opening, and compartment. how to set up bag filter compartment change while online. Manual key switch for bag filter by-pass to be installed. Fire 30.08.09 The fire was caused by ignition of oil from a failed The valve to be replaced with Incident regulator valve to the start up burners. more robust valve system used There is a maintenance contract in place for the on line 3. Maintenance contract burners, and this was carried out 3-4 weeks prior to include service of valves. to the incident, this service did not include the valve. The valve was not part of the original burner system.

SITA Tees Valley P a g e | 44 Annual Performance Report 2009