38573d6e_International_Joint_Commission__Delisting_Guideline
[BUI] EUTROPHICATION OR UNDESIRABLE ALGAE [Listing Guideline] When there are persistent water quality problems (e.g. dissolved oxygen depletion of bottom waters, nuisance algal blooms or accumulation, decreased water clarity, etc.) attributed to cultural eutrophication. [Delisting Guideline] 
When there are no persistent water quality problems (e.g. dissolved oxygen depletion of bottom waters, nuisance algal blooms or accumulation decreased water clarity, etc.) attributed to cultural eutrophication.
International Joint Commission
Delisting Guideline