July 2022 O&M Newsletter By Maine NewsIn State NewsPosted June 29, 20220 Comment(s) A monthly newsletter for wastewater discharge licencees, treatment facility operators, & associated persons July 2022 In this issue: Training-Certification Update Monthly Problem Set / For Practice, July Inactivation of NODI codes in NetDMR – Update Summer Wastewater Operational Problems Water/Wastewater Apprenticeship in Maine Monthly Problem Set / For Practice Answers, July