Region 3 AWOP Planning Meeting and Workshop

The TSC optimization team, in partnership with the Region 3 AWOP team, led a program implementation meeting on December 12-14, 2017 in Philadelphia, PA.  Meeting participants included a mix of those regularly involved (i.e., Maryland, Pennsylvania, Virginia, West Virginia, EPA’s Drinking Water Protection Branch and ASDWA), as well as those interested in learning more about the program (i.e., personnel from New Jersey and EPA Regions 1 and 5). Michigan, which recently announced their intent to join AWOP, attended this as their first multi-state AWOP meeting.

All participants provided reports on their recent AWOP activities and/or their interest in the program.  The technical topic, distribution system data integrity, was embraced by participants as a potential activity for smaller systems. Topic discussed during the strategic planning meeting included Legionella (i.e., understanding treatment options, approaches for consecutive systems); next steps for new/interested AWOP states; flushing approaches to enhance water quality; drinking water program metrics; and simultaneous compliance challenges. (Alison Dugan, US EPA – TSC)

Region 4 AWOP Strategic Planning Meeting and Workshop

The TSC optimization team, in partnership with EPA Region 4 and ASDWA, led a November 7-9 technical training workshop and strategic planning meeting in Frankfort, KY.  Participants included state drinking water program representatives from Alabama, Florida, Kentucky, North Carolina, South Carolina and Tennessee. States presented updates on their AWOP activities and resulting water quality impacts. The technical workshop, at the Nicholasville, KY water treatment plant, focused on evaluating corrosion control treatment. Discussion topics included a variety of PWSS and AWOP implementation issues. (Alison Dugan, Matthew Alexander, Ouro Koumai and Richard Lieberman; US EPA TSC)

Distribution System Optimization Pilot Training in Pennsylvania: 

On October 24th, the Optimization Team partnered with the Pennsylvania Department of Environmental Protection to pilot a workshop on Distribution System Optimization (DSO) for parent and consecutive water systems that use chloramine disinfection.  The workshop topics included an overview on DSO, discussion among the seven participating systems about their current monitoring activities and objectives, a review of sampling and analysis procedures, and discussion of potential (enhanced) distribution system monitoring. Candidate future topics were also discussed, including fundamentals of chloramines, strategies to effectively manage a system during a chlorine conversion (burn), and approaches for improving water quality and addressing nitrification. The next workshop is tentatively planned for Spring 2018.  (Alison Dugan and Matthew Alexander, US EPA TSC)

Region 10/8 AWOP Planning Meeting

The TSC optimization team, in partnership with EPA Region 10, led a program implementation meeting December 5-7, 2017, in Coeur d’Alene, ID.  Representatives from Washington, Idaho, Oregon, Utah and EPA Region 10 attended the meeting and representatives from Montana, Colorado, and EPA Region 8 participated remotely.  The states provided updates on their optimization efforts and highlighted performance data and impacts of their programs on public health protection. The event included a workshop on slow sand filtration optimization during which the group completed a year-long data trending project to pilot water quality optimization goals for slow sand filters with a local northern Idaho water system. Discussion covered a range of topics, including: establishing a regional comprehensive performance evaluation (CPE) team; water treatment optimization strategies for cyanobacteria; optimizing disinfectant residual in wholesale and consecutive systems; and data integrity.  (Tom Waters, US EPA/ TSC)

Region 6 Regional Applied Research Effort Project:

The TSC optimization team, in partnership with EPA Region 6, ORD, and Louisiana Department of Health, visited four water utilities in Louisiana on December 5-7, 2017 to kick off a Regional Applied Research Effort (RARE) Project.  The purpose of the project is to gain a better understanding of the impacts (e.g., on pathogens, DBPs, organic chloramines, nitrification) of maintaining a minimum disinfectant residual greater than a “trace” in chloraminated drinking water distribution systems.  The optimization team was invited to participate in this collaborative effort to introduce the participating water systems to optimization monitoring approaches for distribution systems.  (Matthew Alexander, TSC).