How can a facility that uses water have no potential to discharge if there is a connection on site to the POTW?
The determination of “no potential” relates only to regulated process wastewater sources that are addressed in the PFPR rule. Therefore, a facility may have a connection to a POTW and may use water, but still have no “potential to discharge” if the control authority concludes that there are no regulated process wastewater sources that can reach the POTW and therefore, the industrial user has no reasonable potential for adversely affecting the POTW’s operation or for violating any pretreatment standard or requirement.