Larry,
Please check with the land administration for that answer. I have a feeling that it is going to be very close to the same as Cape Disappointment WA. No equipment in the tidal area. You can use equipment at Cape D you just have to be above the high tide line and no pumps allowed in the surf, recirc only. BUT I do not know the definitive answer for that.
Good luck and go get some gold.

Kevin

Larry,
Absolutely no motorized mining gear on any Oregon beach. This applies to gas, electric, even a recric system in gas or electric. If you set it up with a hand operated pump (like the Gold Grabber version), then that's legal.

Panning and sluices allowed, and can take a 5 gallon bucket of black sand per day from the beach, your choice of just dug or processed cons.

State Parks and recreation have control over the beaches. I think they still require a permit, more for your knowing the regulations than anything else. Believe it's still free, and available from either Salem or one of the coast offices like Beverly Beach