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Designation of HMWBs

• Describe in detail the methodology for the designation of HMWBs, including:
• Criteria used for the identification of substantial change in character. Thresholds should be included if they have been used (such as percentage, length or area of the water body affected by modification, the size of dams or impoundment).
• Type of physical alterations considered for the designation of HMWB.
• Criteria used for the assessment of significant adverse effect on the use. Indicate if thresholds have been used for the different water uses to define significant adverse effect (such as percentage of losses in energy production, agricultural production, and increase in risk of flooding).
• List the water uses behind the designated HMWB and the number or percentage of water bodies for each use.
• Explain how WFD Article 4(3)b has been applied (better environmental option). Which ‘other means’ have been considered for each water use. Describe all cases in which this assessment has concluded that there is a need to restore a water body and achieve the beneficial objectives through other means which are significantly better environmental options.