(ii)

For heavily modified and artificial water bodies, the ecological potential classification for the body of water shall be represented by the lower of the values for the biological and physico-chemical monitoring results for the relevant quality elements classified in accordance with the first column of the table set out below. Member States shall provide a map for each river basin district illustrating the classification of the ecological potential for each body of water, colour-coded, in respect of artificial water bodies in accordance with the second column of the table set out below, and in respect of heavily modified water bodies in accordance with the third column of that table: Ecological potential classification Colour code Artificial Water Bodies Heavily Modified Good and above Equal green and light grey stripes Equal green and dark grey stripes Moderate Equal yellow and light grey stripes Equal yellow and dark grey stripes Poor Equal orange and light grey stripes Equal orange and dark grey stripes Bad Equal red and light grey stripes Equal red and dark grey stripes

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Source: EUR-Lex CELLAR · retrieved 2026-08-09 · Text as consolidated on 2026-05-10; changes after this date are not shown.