1999 c. 24. Section 2 was amended by section 62 of the Water Act 2014 (c. 21), and S.I. 2013/755. Schedule 1 was amended by section 70 of the Environment Act 2021 (c. 30), and S.I. 2005/925, 2012/2788, 2018/942, 2019/458.