“Screening level” means the concentration of a pollutant in water that would cause a threat to personnel exposed to the pollutant, or would cause a threat to the structures of the POTW.

Source. #8235, eff 12-22-04 (See Revision Note at chapter heading for Env-Wq 1200) (formerly Env-Ws 1202.57); ss by #9798-A, eff 10-9-10 (from Env-Wq 1202.56); ss by #12739, eff 3-19-19