Guardian: On Sunday, I revealed in the Observer that the most persistent and frequent polluters of England's rivers and beaches are the nation's biggest 10 biggest water companies. I wrote: The companies, who are responsible for treating waste water and delivering clean supplies, have been punished for over 1000 incidents in the last nine years but fined a total of only 3.5m. The revelations have prompted deep concern that the financial penalties being levied are far too low to change the behaviour of an...