11 Monitoring
1 It shall be the duty of every river purification authority–
(a) to monitor or procure the monitoring by a competent authority or appropriate body of discharges from urban waste water treatment plants within its area to verify compliance with the relevant requirements of Part I of Schedule 3 in accordance with the control procedures set out in Part II of that Schedule;
(b) to monitor or procure the monitoring by a competent authority or appropriate body of amounts and composition of sludges disposed of to surface waters within its area (other than by means of dumping from ships);
(c) to monitor or procure the monitoring by a competent authority or appropriate body of waters subject to discharges from urban waste water treatment plants within its area provided in accordance with regulation 5 in cases where it can be expected that the receiving environment will be significantly affected; and
(d) to carry out or procure the carrying out by a competent authority or appropriate body of monitoring and any other relevant studies to verify that discharges within its area to which regulation 5(5) applies and the disposal of sludge to surface waters within its area (other than by means of dumping from ships) do not adversely affect the environment.
2 It shall be the duty of the licensing authority (within the meaning of section 24 of the Food and Environment Protection Act 1985)–
(a) to monitor or procure the monitoring by a competent authority or appropriate body of amounts and composition of sludges disposed of to surface waters by means of dumping from ships;
(b) to carry out or procure the carrying out by a competent authority or appropriate body of monitoring and any other relevant studies to verify that the disposal of sludge to surface waters by means of dumping from ships does not adversely affect the environment.
3 Every river purification authority and the licensing authority shall retain any information collected by them or by a competent authority or appropriate body in complying with paragraph (1) or (2) above and shall make it available to the Secretary of State on request.