Is there a set of limitations in terms of concentrations of all the chemicals regards as Endocrine Disrupting Chemicals (EDCs) in water resources particularly in EU and USEPA policies/ Directives. How can I access a full list of this contaminants together with the regulations?
EDCs belong to several groups. Rather than searching for threshold for EDCs as a key search word I would look for the chemical/analyte which is an EDC. For ex. Cadmium is a heavy metal (but also an EDC) and its threshold in aquatic environment or drinking water would be easily available. Therefore, making a list of EDCs that you need the threshold/standard for would be the first step. Next I would look at Screening Quick Reference Tables (SQuiRTs) of Buchman etal 2008 from NOAA for the thershold:
https://repository.library.noaa.gov/view/noaa/9327
Hope this helps!
To complete previous answers, you might be interested to know that the EU agencies ECHA and EFSA are going to published on next 7th of June a scientific guidance to enable endocrine disruptors to be identified.
Following this, the methodology to assess the risk and then to define limit values might be developed but you must be aware that identified ED are considered as Substances of Very High Concern (SVHC) in the EU meaning that they should be finally substituted and banned of the market.