Step 1: Data collection

Directive 2009/31/EC of the European Parliament and of the Council of 23 April 2009 on the geological storage of carbon dioxide and amending Council Directive 85/337/EEC, European Parliament and Council Directives 2000/60/EC, 2001/80/EC, 2004/35/EC, 2006/12/EC, 2008/1/EC and Regulation (EC) No 1013/2006 (Text with EEA relevance) · European Union

Sufficient data shall be accumulated to construct a volumetric and three-dimensional static (3-D)-earth model for the storage site and storage complex, including the caprock, and the surrounding area, including the hydraulically connected areas. This data shall cover at least the following intrinsic characteristics of the storage complex: geology and geophysics; hydrogeology (in particular existence of ground water intended for consumption); reservoir engineering (including volumetric calculations of pore volume for CO_(2) injection and ultimate storage capacity); geochemistry (dissolution rates, mineralisation rates); geomechanics (permeability, fracture pressure); seismicity; presence and condition of natural and man-made pathways, including wells and boreholes which could provide leakage pathways. The following characteristics of the complex vicinity shall be documented: domains surrounding the storage complex that may be affected by the storage of CO_(2) in the storage site; population distribution in the region overlying the storage site; proximity to valuable natural resources (including in particular Natura 2000 areas pursuant to Council Directive 79/409/EEC of 2 April 1979 on the conservation of wild birds OJ L 103, 25.4.1979, p. 1. and Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora OJ L 206, 22.7.1992, p. 7. , potable groundwater and hydrocarbons); activities around the storage complex and possible interactions with these activities (for example, exploration, production and storage of hydrocarbons, geothermal use of aquifers and use of underground water reserves); proximity to the potential CO_(2) source(s) (including estimates of the total potential mass of CO_(2) economically available for storage) and adequate transport networks.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-12 · Text as adopted (Official Journal); later amendments are not incorporated in this text.