I have worked in the waste water industry for over 17 years, the situation you described was illegal when I started and still very much illegal today. It will never be ok to dump any untreated waste water. Ky div of water takes this very seriously I'm sure they would like to know about that incident.
I would feel ashamed to know anyone who worked in waste water did this knowingly and with out some sort of alternate disinfection, which you may not have noticed...


Sent from my iPhone using Tapatalk