This whole thing is so annoying. I've talked to my local BLM, FS and F&G about the various mining rules and regs. BLM's answer was basically that I could do anything unless I was in a "designated protected area", and then I could only use an electric pump because all gas motors are banned in those areas, mining related or not. He did say, "technically you can even dreee.., well I won't go into that." He actually gave me his name and told me if I have any troubles to have whoever I'm dealing with call him. He said he talked to the LEO's in my area about what the regs are and they that "should" all know. My local FS told me that I can't use any "motor driven suction equipment", but that gas\electric pumps and high banking are fine as long as I am not discharging directly back into a water way. The F & G guys were the toughest. No one there had any idea what a high banker or a small water pump was. At first the lady told me I was fine, then she got another guy involved. He said I can't use a pump but recommended I use a bucket to drop water on my sluice, lol. Then they told me they weren't well enough informed and that they would have a F & G guy who was call me back. That guy told me that as long as I wasn't using suction to remove gravels from the stream bed, and that I was using small equipment designed for just a couple of guys that I would be ok to do basically whatever. All of my questions to these guys were in regards to running a highbanker powered by either a gas or electric pump.
Then I read stories on here and am scared to even run my bazooka most of the time, lol!