January 2019 O&M Newsletter By Maine NewsIn State NewsPosted January 2, 20190 Comment(s) A monthly newsletter for wastewater discharge licencees, treatment facility operators, and associated persons January 2019 In this issue: Calendar Upcoming Conferences & Events Monthly Problem Set / For Practice, January DEP Retirement Certification Update Is Your Wastewater Lagoon Ready for Winter? Prepping for Cold Temperatures Quality Control in the Laboratory Monthly Problem Set / For Practice Answers, January
