Za D6C5 uzimaju se u obzir procjene štetnih učinaka pritisaka, uključujući u okviru kriterija D2C3, D3C1, D3C2, D3C3, D5C4, D5C5, D5C6, D5C7, D5C8, D6C3, D7C2, D8C2 i D8C4.
Guidance Document nr 13 med titeln Overall Approach to the Classification of Ecological Status and Ecological Potential och nr 23 med titeln Eutrophication Assessment in the Context of European Water Policies).