Dump stations along I5 in north CA

Hudsoner wrote:
I will be driving form Mount Shasta to Eugene, Oregon. I would need to refill my propane tank and dump my holding tanks along that route.

Would somebody please be so nice and tell me about possibilities for these requirements along I5?

So less than 5 hours? Dump a tank and fill propane? If you have been camping in Shasta you could have dumped there and filled propane at the shell station in weed.
Hmmmnnn?
And I might add,, California has non-dumping at any of it's rest areas that I know of.