Includes:
DYSIM/4/1–2: Castleford Urban District Council
DYSIM/4/3–7: Doncaster Rural District Council (Conisbrough Water Supply)
DYSIM/4/8: Featherstone Urban District Council
DYSIM/4/9–11: Wheatley Urban District Council
DYSIM/4/12–13: Doncaster Rural District Council (Sprotbrough Water Supply)
Doncaster RDC: Sprotbrough Water Supply [DYSIM/4/12–13]