Benoît FRIBOURG-BLANC, IOW How to build the Inventory of Emissions, Discharges and Losses: main elements and compilation of existing datasets Benoît FRIBOURG-BLANC, IOW WG E(2) meeting, 17 October 2007

Inventory : the legal basis WFD: reduction/phase-out of discharges, emissions and losses of priority (hazardous) substances (Art.16 (3) and 1(c)), a review of the impact of human activity (pollution), including identification of significant point and diffuse sources of pollution (Art. 5) Proposal COM(2006) 397 final: Inventory of emissions, discharges and losses (Art. 4)

Inventory : what is it? a database that organises, by source, the amount of substances emitted/released and through various pathways are discharged or lost into the aquatic environment, or transferred to other media. Source : Annex 1A, EU Environment Directorate, 2005c

Inventory : the main components Sources: may be classified in categories, and the WFD requires at least point and diffuse sources (Art. 10) and urban, industrial, agricultural and other installations and activities (Annex II 1.4.). Pathways generally include all the routes the pollutants follow from the source to the receiving aquatic environment. Substances: all priority substances and pollutants listed in Part A of Annex I of COM(2006) 397 final Geographical scale: point sources: each emitter diffuse sources: sub-basin of RBD Temporal scale: annual load

The Sources Diffuse sources Point sources S1 Atmospheric deposition S2 Indirect drainage of deep groundwater reservoirs S3 Agriculture S4 Traffic and non urban infrastructure S5 Accidental spills. S6 Release from materials. Point sources S7 Roofs and paved areas S8 Households S9 Industry S9.1 SME S9.2 E-PRTR industry S10 Waste deposit/landfill S11 Historically contaminated land S12 Natural sources A link with NACE needed Source : Data Collection Manual for the OECD/Eurostat Joint Questionnaire on Inland Waters, Tables 1 – 7, June 2004

The Pathways easier for point sources: collection system (pipes, ditches, channels, tunnels, conduits, containers) + treatment system (treatment plant, sedimentation area…). diffuse sources: leakage, drift, spills, drainage… Some examples of pathways: Source : Adapted from Annex 1A, EU Environment Directorate, 2005c

The substances Part A of Annex I of COM(2006) 397 final (individual substances or groups) quantities with their associated units international nomenclatures: EINECS/ELINCS and/or CAS … This can be extended depending on additional needs identified

Inventory : existing data collections

Building the Inventory Objective: Sources : all generating significant pollution quantities Pathways: all through which significant quantities are discharged or lost Substances: all significant loads for all relevant substances Geographic: each RBD sub-unit Temporal: year Basis: WFD Art 5 and 8, EPER and E-PRTR Already existing datasets Many guidances Defined databases

Building the Inventory Define technical organisation: EPER and E-PRTR, ETC-WTR 2002 and National inventories or permit registers Adapt to national organisation: compare with reference lists Select relevant datasets and define combination

Inventory : pending questions How to define non-significant loads? (90%? Less?) How to consider off-site transfers (purification performance? GIS link) How to include diffuse sources? (concept of net emission?) How to assess/validate appropriate methods to close the gaps? (QA/QC on methods?)

Conclusion and way forward A need to streamline approach with other developments under E-PRTR and/or EEA and ETC-WTR, Use the draft as a basis to develop a guidance with MS: develop a work programme, develop a table of content, and identify good examples to illustrate. Do you wish to start drafting a guidance?