Re: Some one else needs to be charged ...(@ Evil Auditor)
but dead animals and bird droppings added AFTER the chlorine... that really would freak me out.
I hope you are one of the few people who never allows any tap water that didn't come from the kitchen cold tap past their lips. Also, that you have checked the routing of all the pipes in your property, and have inspected the situation in the loft.
Commonly in a flat in a Victorian building, the other taps are fed from a header tank in the loft, that is not covered, and which is accessible to any wildlife that can get in under the eaves. I have heard of cases where people complained to the water authority that their water tasted unpleasant, and the problem was traced to a decomposing pigeon or rat in the header tank. It's also not unknown for the kitchen cold tap to be mis-plumbed into the supply from the header tank. And of course, mixer taps mix a bit of impure hot water into the "pure" cold water, if you select cold but the previous usage was warm.
Personally, I'm rather more concerned about leachate from the coal tar (ie concentrated polycyclic aromatic hydrocarbons, bio-accumulative carcinogens) with which the Victorians sealed their cast iron public water supply systems against leakage. Many of these pipes are still in use. At least London has the saving grace of hard water coating the innards of everything in limescale.
Oh, and "plumbed" my well mean plumbed with actual lead pipes, if the building is pre-war. Again I'm glad of the hard water in London.
Sorry to be the bearer of bad news. You now have permission to vomit.