The Environment Agency is required by the Regulations to sample waters classified under the Regulations (and analyse samples) to monitor the effect on those waters of discharges containing the dangerous substances in question, to determine the extent of any pollution by those substances and compliance with the requirements for the relevant classification (regulation 4).
Section 83 of the Water Resources Act 1991 provides for the establishment of water quality objectives by means of the Secretary of State serving a notice on the Environment Agency. That section is modified so that—
the Secretary of State is placed under a duty immediately to classify under the Regulations all inland freshwaters, coastal waters and relevant territorial waters; and
subsections (3) to (6) (reviews and consultation requirements) are disapplied (regulation 5).