The Water Framework Directive (Priority Substances and Classification) Regulations (Northern Ireland) 2011 No. 10

SCHEDULE 1

PART 3 Boundary values for biological quality elements

Boundary values for aquatic plants and animals in rivers

3.  The Department shall apply, as applicable, to any river or part thereof, the “high”, “good”, “moderate”, “poor” or “bad” aquatic macrophyte boundary value for rivers specified in Table 4 below.