Hey Watcher,

You might like:

Water, the epic struggle for wealth, power, and civilization by Steven Solomon

Salt, a world history by Mark Kurlansky

...and perhaps for a bit of light reading

Wastewater Engineering, Treatment & Reuse, by Metcalf and Eddy

Biological Nutrient Removal (BNR) Operation in Wastewater Treatment Plants, WEF & ASCE

So are ya a surface water (downstream) or groundwater recipient?