Distribution System Optimization Training

On April 21st and 22nd US EPA, TSC, in partnership with the West Virginia Bureau for Public Health (WVBPH) Area Wide Optimization Program (AWOP) Team, conducted the second of two training sessions focused on distribution system optimization. Participants included water system operators whose systems have historically had disinfection byproduct (DBP) compliance challenges. The operators reported on their progress since attending the first session, which focused on setting water quality goals for their system (chlorine residual and DBPs), assessing system performance relative to these goals, and trending the data. It is anticipated that the systems will continue to monitor after the conclusion of the formal training sessions and that the training impact will be assessed at a one-year follow-up meeting. AWOP members from three other states who are considering the training for their own water systems also attended the training. WVBPH plans to repeat this training in other areas of the state. (Alison Dugan and Matthew Alexander, US EPA, TSC)

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Distribution System Comprehensive Performance Evaluation

During the week of September 8th, members of the Optimization Team, in partnership with the EPA Region 6 and Arkansas Department of Health (ADH), conducted a field event to support the development of a Distribution System Comprehensive Performance Evaluation (DS CPE) for chloraminated water systems. The DS CPE protocol was originally developed for water systems that use free chlorine as a secondary disinfectant. As a result, the existing DS CPE protocol is in the process of being modified to apply to chloraminated water systems, which was supported by the findings and experience gained from this event. The field event was hosted by two systems, Marion County Regional Water District, a parent system, and Yellville Water Works, one of their six consecutive systems. Typically DS CPEs are only conducted at a single water system, so this event allowed the unique opportunity of implementing the tool at two systems with a parent-consecutive system relationship. Both systems welcomed the feedback from the team during the exit meeting and the Optimization Team will request updates on their mutual pursuit of optimization from ADH staff. (Matthew Alexander, Alison Dugan, & Tom Waters, US EPA TSC)

Distribution System Comprehensive Performance Evaluation

During the week of August 26, members of the Optimization Team, in partnership with the Region 4 Area-Wide Optimization Program (AWOP) team, demonstrated the Distribution System Comprehensive Performance Evaluation (DS CPE) in Lawrenceburg, KY. Sixteen trainees participated in this CPE, including representatives from Alabama, Kentucky, North Carolina, South Carolina and Region 4. This CPE was the final in a series of three training CPEs conducted with this AWOP. States anticipate that they will implement this tool (either fully, or “pieces”) to support their Stage 2 DBPR compliance assistance activities, primarily targeting systems with compliance challenges who have a desire to optimize and improve water quality in their system. (Alison Dugan & Matthew Alexander, US EPA TSC)

Distribution System Optimization Training

On July 29 and 30th the Optimization Team, in partnership with the West Virginia Bureau for Public Health (BPH) Area Wide Optimization Team, provided distribution system optimization training to plant and distribution system operators from ten water systems. This training “module” is based on Performance Based Training (PBT) concepts and approach, with the intent of engaging more water systems (compared to a traditional PBT project) with limited facilitation (as opposed to PBT). The training focused on the importance of maintaining an adequate disinfectant residual and minimizing disinfection byproducts in the distribution system, as well as approaches for monitoring water quality (including site selection) and water quality data handling. The BPH provided hydrant samplers to all of the participating systems to help them accurately characterize water throughout their systems. Two members from the State of Virginia’s AWOP team also attended and are considering implementing this training with water systems in their state. A second module is planned for spring of 2015, focused on operational strategies to improve water quality once areas of poor water quality have been identified. (Alison Dugan & Tom Waters, US EPA TSC)

Distribution System Comprehensive Performance Evaluation

During the week of June 23rd, members of the Optimization Team, in partnership with the EPA Region 4 Area-Wide Optimization Program (AWOP) members, demonstrated the Distribution System Comprehensive Performance Evaluation (DS CPE) to the Region 4 AWOP in Mt. Airy, NC. This was the second in a series of three planned training CPEs intended to transfer DS CPE skills to the State AWOP participants; ultimately enabling them to conduct DS CPEs with and/or provide technical assistance to water systems challenged with meeting the Stage 2 DBPR or with maintaining a disinfectant residual in their system. Nineteen trainees participated in the CPE, which included representatives from Alabama, Florida, Kentucky, North Carolina, South Carolina and EPA Region 4. (Alison Dugan & Matthew Alexander US EPA, TSC)

Chloraminated Distribution System Field Event

During the week of May 12th, members of the Optimization Team, in partnership with Pennsylvania Department of Environmental Protection’s (DEP) and Allegheny County Health Department (ACHD), conducted the first field event to support the development of a Distribution System Comprehensive Performance Evaluation (DS CPE) for chloraminated water systems. The DS CPE protocol was originally developed for water systems that use free chlorine as a secondary disinfectant. As a result, the existing DS CPE is in the process of being adapted to apply to chloraminated water systems. The field event provided an opportunity to field test aspects of the
DS CPE that were recently modified (e.g., additional monitoring parameters) or added (e.g., evaluation of chlorine and ammonia practices) to apply to chloraminated water systems. The event also provided an opportunity to assess the system’s performance relative to the proposed goals for chloraminated water systems. The host system, Oakmont Water Authority, welcomed the feedback from the team during the exit meeting and TSC will request updates on their pursuit of optimization from DEP and the ACHD staff. (Matthew Alexander, Alison Dugan, & Tom Waters US EPA, TSC)

Denny Krieder (Oakmont Water Authority) provides a tour of Oakmont Water Authority’s Hulton Purification Plant to Bill Davis (PAI) and Larry DeMers (PAI).

Denny Krieder (Oakmont Water Authority) provides a tour of Oakmont Water Authority’s Hulton Purification Plant to Bill Davis (PAI) and Larry DeMers (PAI).

 

Tom Waters (USEPA TSC) and Paul Handke (PA DEP) prepare to collect water quality samples as part of the storage tank assessment special study.

Tom Waters (USEPA TSC) and Paul Handke (PA DEP) prepare to collect water quality samples as part of the storage tank assessment special study.