SI 2023/93. The Environmental Targets (Water) (England) Regulations 2023. Comes into force 31st January. These Regulations set long-term targets for reduction in nitrogen, phosphorus and sediment entering fresh and coastal waters from agricultural land, reduction is nitrogen entering fresh waters from sewerage systems, reduction of the length of waters polluted by arsenic, cadmium, copper, lead, nickel and zinc from abandoned metal mines and reduction of the amount of potable water supplied by water undertakers.