December 2018 O&M Newsletter By Maine NewsIn State NewsPosted November 29, 20180 Comment(s) A monthly newsletter for wastewater discharge licencees, treatment facility operators, and associated persons December 2018 In this issue: Calendar Mark Your Calendar for Upcoming Conferences/Conventions Monthly Problem Set / For Practice, December Certification Update CDX/NetDMR Security Updates Submitting Attachments with Your DMR’s Laboratory Glassware: A Brief Introduction to Classification Monthly Problem Set / For Practice Answers, December Wastewater Infrastructure Planning & Construction Grants to be Available CWSRF Chapter 595 Proposed Rule Making