[katex]

Seems the stream that Woodnook were thinking of using was, of course, Woodnook Waters. They did have it tested and proved of good enough quality to use for bottling .... didn't go ahead due to the expense.

I don't know round the back of there very well, but is the one that runs through Priestley Clough. If you go to the top of Bath Street, mini roundabout .. have to go straight ahead into the Clough (get yer wellies out) ... believe there is some sort of drop where the water drains down.

I have also contacted my daughter, who has a friend who is a Geologist, she is responsible for collecting water samples and possibly the flow of waters from around the U.K. I copied your last post, and her friend has very kindly sent this reply .. hope it is of help :

"Gee Susie, well, anyone can read the USEPA manual, and so far as providing professional advice regarding disinfection of spring water via this method I really can't comment.

However, it may surprise you to know that the spring water that ends up on the shelves in the supermarket really does come from natural springs. It is untreated (unless you add CO2, which makes it fizzy), but is subjected to a defined testing regime.

You can get a UV purification kit from somewhere like Cotswold Camping. Its a little pen and I'm not completely familiar with the mechanism but apparently its pretty good and, rather than adding a chemical, I'd recommend it (I bought my parents one for their travels in fact!!).

I am currently working on a scheme to provide better quality drinking water from groundwater in the midlands. The area in which I am working has lots and lots of boreholes / wells and some people still take their water from these. Most have UV filtration but I'm not sure that all do. The main issue with springs is that they are often nearer surface and therefore subject to contamination from nitrates. However, people from Birmingham used to drive out to the Ombersley area to fill bottles full of spring water for their own consumption!! This still happens in the Malvern Hills!!

My best advice would be to look to local knowledge to find out where the local springs are and whether there has been any analysis carried out. If in any doubt carry out UV purification using a kit. A lot of our groundwater is safe and potable but some of it is not.

The water we get from our taps is perfectly safe for most people. However, I have drunk some from the boreholes / wells I have been monitoring and it is delicious stuff.

I'll try and get the advice of a water quality person about the Chlorine dioxide (ClO2)."

Will let you know if I receive any further information.