November 2021 O&M Newsletter By Maine NewsIn State NewsPosted October 26, 20210 Comment(s) A monthly newsletter for wastewater discharge licencees, treatment facility operators, & associated persons November 2021 In this issue: Training & Conference Opportunities Monthly Problem Set / For Practice, November Maine Chapter 550 – Discontinuation of Wastewater Treatment Lagoons DMR QA Study 41 Update Certification Update Monthly Problem Set / For Practice Answers, November
