Is there a minimum UV dose required by the EPA for disinfection of treated wastewater? I have found literature suggesting 40 mJ/cm2 for drinking water, but am looking for requirements regarding wastewater.
NWRI guidelines required 80 mj/cm2 at 65% UVT for an application I worked with. I'm pretty sure that NWRI sets different requirements depending on if the wastewater is being used for re-use.