Hi all,
It is a bit of a strange read. Nearly everything on it has a regulatory limit (that is why you have all the pesticides) and they don't report any values that they aren't legally required to.
The conductivity is high and they've told you the water is "hard" or "very hard", so you can assume most of that is calcium (Ca++) and bicarbonate (HCO3-) ions from the chalk aquifer. They don't give you a calcium value, but it will be ~150 ppm Ca.
You still have some other ions to account for, which are likely to be sodium (Na+) and chloride (Cl-) ions from, a very small amount, of saline water inflow.
There were 52 samples taken for Nitrate (NO3) analysis, the mean average reading was 8.6 ppm, but the minimum value was 2.1 ppm and the maximum value 29 ppm. All you can deduce from that is that the NO3 value was more likely to be in the 2 - 17 ppm range than the 29 ppm, we have no way of knowing whether "29 ppm" was a single anomalous reading etc.
I would have expected that value to be higher, because of where you are located, and they may be blending low NO3 water in with the supply.
There are a slightly elevated max. ammonium (NH4+) and nitrite (NO2-) readings as well, which may relate to emergency chloramine dosing (that could also account for the high NO3 reading). Chlorine levels ("Residual Disinfectant") are about what you would expect (no more than 0.5ppm Cl).
There is a document at <"
Essex and Sussex water resources plan ">, but I haven't been all the way through it
cheers Darrel