UNEP published a "Framework for Freshwater Ecosystem Management". Volume 4 for example includes - due to the content explanation - a review of water quality guidelines for ecosystems. That's not exactly what you're looking for. But it may contain helpful information for more in-depth research and pointers to contacts / relevant projects:
The British Columbia Water Quality Guidelines take into account separate from aquatic life.
Here is a link to the site: https://www2.gov.bc.ca/gov/content/environment/air-land-water/water/water-quality/water-quality-guidelines/approved-water-quality-guidelines
They also have this useful web app for looking up specific parameters: https://bcgov-env.shinyapps.io/bc_wqg/
I have worked in the discipline of wildlife toxicology for more than 35 years, with a focus on USA water quality. There are no such comprehensive standards from EPA, although they exist for a very few individual pollutants such as mercury, selenium, organochlorines, etc., on a regional basis... The Great Lakes Initiative comes to mind. I also have never encountered any systematic compilation of recommended guidelines or standards from any other USA government agency or non-government entity. I'm hoping you will have better luck in responses from those who know International organizations. Looks like Dan Webster has already put you on a good start there. Good Luck.