Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy (c. 60)

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ANNEX V U.K.

1. SURFACE WATER STATUS U.K.

1.1. Quality elements for the classification of ecological status U.K.

1.1.1. Rivers U.K.

Biological elements U.K.

• Composition and abundance of aquatic flora

• Composition and abundance of benthic invertebrate fauna

• Composition, abundance and age structure of fish fauna

Hydromorphological elements supporting the biological elements U.K.

• Hydrological regime

  • quantity and dynamics of water flow

  • connection to groundwater bodies

• River continuity

• Morphological conditions

  • river depth and width variation

  • structure and substrate of the river bed

  • structure of the riparian zone

Chemical and physico-chemical elements supporting the biological elements U.K.

• General

  • Thermal conditions

  • Oxygenation conditions

  • Salinity

  • Acidification status

  • Nutrient conditions

• Specific pollutants

  • Pollution by all priority substances identified as being discharged into the body of water

  • Pollution by other substances identified as being discharged in significant quantities into the body of water

1.1.2. Lakes U.K.

Biological elements U.K.

• Composition, abundance and biomass of phytoplankton

• Composition and abundance of other aquatic flora

• Composition and abundance of benthic invertebrate fauna

• Composition, abundance and age structure of fish fauna

Hydromorphological elements supporting the biological elements U.K.

• Hydrological regime

  • quantity and dynamics of water flow

  • residence time

  • connection to the groundwater body

• Morphological conditions

  • lake depth variation

  • quantity, structure and substrate of the lake bed

  • structure of the lake shore

Chemical and physico-chemical elements supporting the biological elements U.K.

• General

  • Transparency

  • Thermal conditions

  • Oxygenation conditions

  • Salinity

  • Acidification status

  • Nutrient conditions

• Specific pollutants

  • Pollution by all priority substances identified as being discharged into the body of water

  • Pollution by other substances identified as being discharged in significant quantities into the body of water

1.1.3. Transitional waters U.K.

Biological elements U.K.

• Composition, abundance and biomass of phytoplankton

• Composition and abundance of other aquatic flora

• Composition and abundance of benthic invertebrate fauna

• Composition and abundance of fish fauna

Hydro-morphological elements supporting the biological elements U.K.

• Morphological conditions

  • depth variation

  • quantity, structure and substrate of the bed

  • structure of the intertidal zone

• Tidal regime

  • freshwater flow

  • wave exposure

Chemical and physico-chemical elements supporting the biological elements U.K.

• General

  • Transparency

  • Thermal conditions

  • Oxygenation conditions

  • Salinity

  • Nutrient conditions

• Specific pollutants

  • Pollution by all priority substances identified as being discharged into the body of water

  • Pollution by other substances identified as being discharged in significant quantities into the body of water

1.1.4. Coastal waters U.K.

Biological elements U.K.

• Composition, abundance and biomass of phytoplankton

• Composition and abundance of other aquatic flora

• Composition and abundance of benthic invertebrate fauna

Hydromorphological elements supporting the biological elements U.K.

• Morphological conditions

  • depth variation

  • structure and substrate of the coastal bed

  • structure of the intertidal zone

• Tidal regime

  • direction of dominant currents

  • wave exposure

Chemical and physico-chemical elements supporting the biological elements U.K.

• General

  • Transparency

  • Thermal conditions

  • Oxygenation conditions

  • Salinity

  • Nutrient conditions

• Specific pollutants

  • Pollution by all priority substances identified as being discharged into the body of water

  • Pollution by other substances identified as being discharged in significant quantities into the body of water

1.1.5. Artificial and heavily modified surface water bodies U.K.

The quality elements applicable to artificial and heavily modified surface water bodies shall be those applicable to whichever of the four natural surface water categories above most closely resembles the heavily modified or artificial water body concerned.