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CIS Mixing Zones Guidance

Agenda item 8d. Mixing Zone for for AA-EQS. Mixing Zone for MAC-EQS. CIS Mixing Zones Guidance. Final Draft John Batty-DEFRA-UK Madalina David-DG Environment Strategic Co-ordination Group, 5-6 May 2010. Background. RBMP. authorisation and/or permits. What is a mixing zone?

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CIS Mixing Zones Guidance

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  1. Agenda item 8d Mixing Zone for for AA-EQS Mixing Zone for MAC-EQS CIS Mixing Zones Guidance Final Draft John Batty-DEFRA-UK Madalina David-DG Environment Strategic Co-ordination Group, 5-6 May 2010

  2. Background RBMP authorisation and/or permits • What is a mixing zone? • Mixing Zone =part of the surface water body restricted to the proximity of the point of discharge within which concentration of one or more pollutantsexceed relevant EQS, provided that it does not affect the compliance of the rest of the water body with the EQS. • Purpose • option in the EQS Directive (Article 4) • if applied: conditions • approaches and methodologies applied to define such zones • measures taken with a view to reducing the extent of the mixing zone • restricted to the proximity of the point of discharge • proportionate SCG 5 - 6 May 2010

  3. Timetable • November 2008Draft Mandate for a Guidance on MZidentification endorsed by WDs • March 2009 Principles of Tiered Approach agreed by WG E • October 2009 Release to WGE of draft and associated software + Discussion at WG E (7) • October 28th WG-E deadline to submit written comments • November 30th 2009 Revised draft released • December 1st 2009 Final testing phase commenced • January 31st 2010 Testing Phase completed • March 2010 Final Draft release to WG E (9) + WG-E Sign off • April 2010 Final draft despatched to SCG • May 5-6 th 2010 SCG endorsement • May 27-28th 2010 Water Directors endorsement • 29 September Adoption by Regulatory Committee of WFD SCG 5 - 6 May 2010

  4. Principles • Harmonised approach that enables the Competent Authority to first establish where a mixing zone is required, secondto determine its size and acceptability using a “tiered approach” and scrutiny and third to identify the appropriate location of monitoring points • Competent Authority has pivotal role in process of designation and development of mixing zones • Tiered approach offers: • A risk-based and proportionate approach • A focused approach: devote time and effort where necessary and eliminate trivial or minor discharges from further consideration SCG 5 - 6 May 2010

  5. Current Guidance document CONTENT • Core document 1.0 Executive summary 2.0 Definitions 3.0 Introduction 4.0 Proposed approach 5.0 Acceptability 6.0 Scientific and regulatory background to the mixing zones designation 7.0 Tier 0: Assessment 8.0 Tier 1: Initial screening 9.0 Tier 2: Simple approximation of mixing zone SCG 5 - 6 May 2010

  6. Current Guidance Document • Core document 10.0 Tier 3: Detailed assessment of the size of mixing zones 11.0 Tier 4: Investigative study (optional) 12.0 Dealing with multiple discharge 13. Trans-boundary pollution 14. Strategies to reduce mixing zones 15.0 Conclusions and recommendations 16.0 References 17.0 Annexes + Discharge test software + User manual SCG 5 - 6 May 2010

  7. Current Guidance Document • Prepared by Drafting Group on Mixing Zones • working under umbrella of Working Group E • Membership drawn from Member States and stakeholders representatives • The version presented today is the Final Draft(v18): • Results of the testing phase • Comments received during and after WG E (9) were accommodated  no open issues SCG 5 - 6 May 2010

  8. Testing phase • Scope: To investigate whether the guidance and associated software met Member States’ needs and to identify gaps • Undertaken by Belgium, UK and Eurometaux • The Netherlands provided on-line Masterclasses on the Discharge Test software • Outcomes Positive aspects • Guidance seen as logical, easy to understand and very clear • Tiered approach very useful, flexible and facilitates the decision making process • The Discharge Test itself is strong, easy-to-use and operates on a commonly used platform, but may be too conservative in some cases SCG 5 - 6 May 2010

  9. Testing phase • Outcomes • The guidance was not thought to be sufficiently comprehensive for tidal waters • Some contradictions between tiers possible because Tier 1and 2 approaches may be too conservative and not suitable for use throughout Europe and for all cases SCG 5 - 6 May 2010

  10. Drafting team • Norman Babbedge Environment Agency, UK • John Batty (Chair) DEFRA, UK • Dju Bijstra RWS, The Netherlands • Madalina David (Co-chair) European Commission • Raphael Demouliere Ministry of Ecology, France • Klaas Den Haan CONCAWE • Neil Edwards Eurelectric (RWE nPower) • Koen Gommers Eurometaux • Andreas Hoffmann Umweltbundesamt, Germany • Gerrit Niebeek (Co-Chair) RWS, The Netherlands • Keith Sadler Eurelectric (Eon) • Joachim Seibring CEFIC • Hubert Verhaeghe Agence de l'Eau Artois Picardie, France • Nicole Zantkuijl Eureau SCG 5 - 6 May 2010

  11. Future Work • Firstly it is proposed to organise only one workshop with a little number of participants to assist new users to make best use of this guidance (other similar workshops could be organised, if requested) • The idea has been flagged to Working Group E (9)and broadly support • Experts (drafting group) could provide guidance on both the tiered approach philosophy and also how to deal with particular problems by worked examples (Member States will be invited to submit potential case studies in advance) • Draft Agenda of the first workshop was submitted to SCG Contact points: John Batty (John.Batty@defra.gsi.gov.uk) Jorge Rodriguez Romero (Jorge.Rodriguez-romero@ec.europa.eu) Madalina David (madalina.david@ec.europa.eu) SCG 5 - 6 May 2010

  12. Strategic Co-ordination Group members are invited to: • to take note of the documents submitted on • Final draft Guidance on Setting Mixing Zones • proposal for a Workshop on Mixing Zones • discuss and agree whether these documents could be presented to the Water Directors for endorsement at their next meeting (Spain, 27-28 May 2010) SCG 5 - 6 May 2010

  13. Thanks for your attention

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