Dredgman please post a link to sites you are bringing attention to don't make me do all the work, K, thanks
Suction Dredge Permitting Program - California Department of Fish and Wildlife
It also states
Further, Fish and Game Code section 1602 requires that any person notify CDFW before substantially diverting or obstructing the natural flow of, or substantially changing or using any material from the bed, channel or bank of any river, stream or lake.
If you go to the link below that statements it takes you to a page that shows a culvert, THAT IS SUBSTANTIAL not what most of us do is or should be considered substantial.
Notification of Lake or Streambed Alteration
Notification is required by any person, business, state or local government agency, or public utility that proposes an activity that will:
substantially divert or obstruct the natural flow of any river, stream or lake;
substantially change or use any material from the bed, channel, or bank of, any river, stream, or lake; or
deposit or dispose of debris, waste, or other material containing crumbled,flaked, or ground pavement where it may pass into any river, stream, or lake.
Just like to let everyone know if they plan on dredging to contact your local sheriffs deptartment and let them in on whats going on and especially if you have FEDERAL mining claims, sheriffs have jurisdiction over state agencys like forest dept, sheriffs will usually go along with federal laws and as long as you have a claim federal mining laws apply to us, they prempt state since the state gave up that lands so we could have those federal mining claims, am I close to being correct mr dredgeman? and if DFG decides to site you just let them know that your on a claim and your not giving up your rights by congressional law and that they need to contact the local sheriffs dept because your not going to accpet there illegal out of there jursidiction citation

so yes, carry on .