PART 4 SMACRO-ALGAE AND MARINE PHYTOPLANKTON
7. Where any bathing water profile indicates a tendency for proliferation of macro-algae or marine phytoplankton, SEPA must carry out such investigations at that bathing water as are necessary to–S
(a)determine whether such proliferation constitutes a health risk to bathers; and
(b)allow adequate management measures to be put in place in accordance with regulation 15.