Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Session Overview
Session 07C: Operations and Maintenance
Monday, 09/Sep/2019:
3:00pm - 5:15pm

Session Chair: Samantha Schreiner, WSC Inc.;
Location: E146

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3:00pm - 3:45pm

Use An Electronic O&M Manual As A Living Document For Knowledge Transfer And Storage

Pi Kosarot, Jeff Day

Everett Water Pollution Control Facility, WA, United States of America;

How will you transfer the in-depth knowledge of your senior operators and maintenance technicians to your new hires? Using an online electronic Operations and Maintenance Manual can be an incredible asset to any plant for storing and transferring that knowledge. At the Everett WPCF in Washington, the e O&M Manual is a living repository for interactive process and operations diagrams, equipment and control data, SOPs, equipment and contractor manuals, photos, as-built drawings, equipment modification tracking, and more, all interlinked to each other as a comprehensive tool for both experienced and new employees. You can include libraries for operation records, maintenance records, and SOP training videos. You can include specs in your new contracts for bidders to add their new construction to the manual. This presentation is a great learning experience for plants with paper manuals, digital text manuals, multiple online document storage areas, and established e O&M manuals. See where your plant can improve! Come learn what your plant could do with an online electronic O&M manual by taking a visual tour of Everett’s e O&M manual on Sharepoint and ask questions for the presenting operator who has been populating the manual.

3:45pm - 4:30pm

Piloting Methods and Technologies to Track Impacts to WWTPs in the Collection System

Joy Ramirez, Scott Mansell

Clean Water Services, United States of America; ,

Clean Water Services is a special service district that provides wastewater collection and treatment for more than 600,000 residents and hundreds of industries throughout Washington County, Oregon. Although the majority of the non-domestic wastestreams are permitted through CWS’ robust pretreatment program, occasional impairment to the wastewater treatment plant processes have occurred from unknown sources in the collection system. These impacts can seriously disrupt processes at treatment plants and can take significant time, effort and cost to restore. These type of impacts are an issue for many wastewater treatment utilities with large numbers of non-domestic sources of waste in the collection system. While CWS continues to redefine and improve source control within the pretreatment program and it implements an Operational Incident Response program, the episodic nature of the impacts makes it difficult for CWS to successfully chase non-domestic impacts upstream and control the offending source. The impacts typically have not been detected until after they have affected a plant, and personnel dispatched to sample key manholes often arrive too late to sample the ‘plug’ of pollutants responsible for the impact. To help detect impacts before they occur and track them to their sources, CWS is testing innovative inline technologies that provide real-time monitoring within the sanitary collection system. CWS has launched pilot projects to test technologies that provide telemetered sensing of various water quality parameters, algorithms to detect potential impacts, and automatically triggered sample collection. We installed multiple smart monitoring systems to detect potential impacts in real time before they affect the treatment plants, identify the pollutants responsible, and track them back to their sources. This talk will describe the technologies tested in the pilot projects to date, describe the successes and lessons learned, and walk through considerations for other wastewater utilities seeking to achieve the same goals.

4:30pm - 5:15pm

Re-Evaluating Domestic Flow Patterns with Modern Tools and Analytics

Doug Lane

City of Bellevue, WA;

Historically, the City of Bellevue grossly estimated non-residential domestic sewage volumes and flow patterns as one, system-wide commercial average. This data was limited by the customer classifications used in the City's billing system. This presentation describes how the City is using modern tools (GIS, advanced water meters, etc.) and publicly available data from tax records and other agencies to understand, analyze and predict domestic water use patterns and volumes at high resolution based on commercial sector. This re-invention of planning criteria has the potential to significantly improve modeling accuracy, and eliminate the costs and community disruption of some development-driven sewer capital improvements based on overly-conservative assumptions. The presentation will also describe some of the related pitfalls and challenges, the need to QA/QC data gathered from external sources, and the potential for further refinement with advanced metering infrastructure (smart water meters).

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