I saw this message and just want to make sure running a sluice box in a creek or river and having excess material wash out of it doesn’t break the rules. Also what classifies as stream bank material?

“not remove stream bank material, destroy natural vegetation or woody debris dams, nor discharge excess silt into the waterways,”

What am I allowed to dig to check for gold on a claim in the area?

Any help would be appreciated.
Thank you