I have published the charts of Thanet ground water quality on one of my websites for anyone that wishes to look at them.
It is a rather unusual web file due to the complex nature of the original document and the large size of it.
You need to use the arrows bottom left to move the tabs along the bottom that show the individual chemicals, clicking on the tabs then reveals the chart for each chemical.
You have to appreciate that this cocktail of chemicals is scrubbed out by reverse osmosis at Fleet reservoir (Nr Manston Airport) by Southern Water, the result is then diluted with water piped in from outside Thanet until drinkable quality is reached.
Thanet's potable (drinkable) water is blend of water from Plucks gutter (river Stour), the Thanet Aquifers and from Wingham Well.
My main concern here is the unregulated agricultural boreholes used for irrigation and crop washing.
Click here for the charts
Click here for some other document about local water that may be of interest