Well, let me talk about the drought from my perspective. I was wondering if the "California drought" news had reached others around the world. Now remember, I live in what's known as "Jefferson, 51st state of the union" (all counties north of Sacramento). We do not have a drought up here nearly as bad as central and southern California. We would have no drought at all if we were not sending billions of gallons down the Sacramento river to end up in the California aqueduct to feed a ton of Big Ag type farming. The big Ag industry has managed the farmland in the central valley so poorly that wells are toxic, rivers run dry, etc... There's little regard to rainwater harvesting and groundwater restoration there. And Southern California has been a desert for thousands of years. It's only in the last century we've been "greening it" with front lawns and heavily manicured and chemicalized landscaping.
And up in this part of the state it's only slightly better. We have the Siskyou, Lassen, Trinity Alps mountain ranges surrounding us with yearly snowpack and many creeks and springs, but again, we have dammed up a ton of rivers and use the outflow for electricity more than for freshwater. We don't do much groundwater restoration either. We try to manage fish populations with hatcheries, but they need access to the ocean and all the way up into mountain streams to thrive. It's all very sad.
A friend I have known since high school lives very close to me now and works in the wastewater treatment industry. At the local plant the goal is more about sterilizing everything, separating the solids and returning the water to the Sacramento River. The solids are periodically dredged from the outlet ponds, but I don't think they could be used for fertilizer because chlorine is used to cleanse the water, a system that is on its way out it seems in much of the state. Many plants simply use aeration and a series of ponds in an actual bio safe way. I don't know the USDA policy on humanure on food crops, but I believe the solids are mostly absorbed in the soil by reeds and other aquatic plants in the outlet ponds. In many places the reclaimed water is used in landscaping and given to local residents to use in gardening and landscaping. The governor is trying to make the recent water restrictions in many central and southern counties permanent.
"Whiskey is for drinking. Water is for fighting over." That's never been more true in California and as such, this post could be a novel...