Cocaine use is so widespread in the UK it has contaminated the nation's drinking water.
A report by the Drinking Water Inspectorate found traces of the metabolised form of the illegal drug, benzoylecgonine, in four sites across the country, even after filtration.
Ibuprofen and an anti-epilepsy drug were also found. The levels are not high enough to present a danger to the public.
The report said: "Estimated exposures for most of the detected compounds are at least thousands of times below doses seen to produce adverse effects in animals and hundreds of thousands below human therapeutic doses."
Steve Rolles of Transform told the Sunday Times: "We have the near highest level of cocaine use in western Europe. It has also been getting cheaper and cheaper at the same time as its use has been going up."
The charity DrugScope estimate 700,000 people aged 16-59 in the UK use cocaine every year with 180,000 addicted to crack-cocaine.
The report was highlighted by Labour MP, Jim Dobbin, who has called for closer monitoring to minimise the effects on consumers.
High-Profile Crack And Cocaine Admissions
Pete Doherty(01 of09)
Open Image ModalThe front man for The Libertines and Babyshambles and ex-boyfriend of Kate Moss said in an interview in July that he is still addicted to crack. When asked what would make him stop, he replied: "Probably my sex drive will have to go. Or I'll have to lose a hand." (credit:AP)
Lawrence Taylor(02 of09)
Open Image ModalThe former NFL star wrote in an autobiography that he was high on crack cocaine during games and borrowed urine from his New York Giants teammates to fool NFL drug testers. (credit:CP)
Elton John(03 of09)
Open Image ModalThe singer admitted in a book that he wasted much of his life being an addict, saying "I was consumed by cocaine, booze, and who knows what else." (credit:CP)
Marion Barry(04 of09)
Open Image ModalThe former mayor of Washington, D.C was arrested for possession of cocaine in 1991 and re-elected in 1994. An 83-minute video of Barry smoking crack was watched by jurors in Barry's trial and featured the mayor yelling "bitch set me up!" about a woman he was with. (credit:CP)
Robert Downey Jr. (05 of09)
Open Image ModalThe reformed actor admitted to drug addiction throughout the 1980s and also owned up to using crack. "The guy I was seeing didn't know I was smokin' crack in his bathroom. You can't make a diagnosis until somebody's sober," he told Esquire magazine in 2007. (credit:AP)
Barack Obama(06 of09)
Open Image ModalThe President of the United States wrote in his first book "Dreams From My Father" that before entering politics he had used marijuana and cocaine ("maybe a little blow," he wrote). (credit:AP)
Sigmund Freud(07 of09)
Open Image ModalThe founder of modern psychology extolled the virtues of cocaine use and self-experimented with the drug, finding it useful in fighting depression and anxiety. (credit:AFP)
Oprah Winfrey(08 of09)
Open Image ModalOne of the most idolized women in America said she did cocaine in the 1970s when she was an anchorwoman in Nashville. "I did your drug. This is probably one of the hardest things I have ever said. ... I had a perfect, round, little afro, I went to church on Sunday and I went to Wednesday prayer meetings when I could ... and I did drugs," she said on her show in 1995. (credit:Getty)
Angelina Jolie(09 of09)
Open Image ModalThe megastar admitted to doing "just about every drug possible," including cocaine and heroin in a 1996 interview with The Mirror. In a later 60 Minutes interview she said her drug use is “nothing I want to go into a lot of detail about, but I think people can imagine that I did the most dangerous and I did the worst. For many reasons I shouldn’t be here." (credit:Gerry)