Definitions for "Controlled waters"
These include; inland waters (dyer, streams, underground streams, canals, lakes and reservoirs); groundwaters (any water contained in underground strata, wells and boreholes); territorial waters (the sea within three miles of a baseline), coastal waters (the sea within the baseline up to the line of highest tide) and tidal waters up to the fresh water limit.
Defined by the Water Resources Act 1991, Section 104, to include inland fresh waters, groundwaters, estuaries and coastal waters within a three mile limit of the shore.
Watercourses under Environment Agency control.