Thames Water tops a list of water companies under criminal investigation for pollution by the UK government, a move that could complicate efforts to turn around the beleaguered British utility. The firm, which serves about a quarter of the UK, …

Thames Water tops a list of water companies under criminal investigation for pollution by the UK government, a move that could complicate efforts to turn around the beleaguered British utility. The firm, which serves about a quarter of the UK, …