I actually live in lush and green Sonoma county. Unfortunately something a lot of people do not know about the area is that they used to mine cinnabar here to make mercury during the gold rush. So some sources in the hills are heavily contaminated. The hills above Healdsburg are the worst.

There's also supposed to be something left over from when the area was the nation's egg basket but I couldn't tell you what.

So really I'd rather have to hump the extra weight than purify that junk. Besides I'm training to climb Shasta in August so the extra weight will do me good.