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Access LevelDateTitleDescription
8/22/2017Treatment Approaches for Managing Dissolved and Intracellular Cyanotoxins
The increase of cyanobacteria blooms and associated metabolite release (taste and odor-causing compounds and cyanotoxins) are causing numerous problems for water treatment plants in terms of maintaining treatment performance, managing disinfection by-products (DBPs), and dealing with the potential presence of the cyanotoxins themselves. The EPA issued health advisories in June 2015 for two cyanotoxins (microcystins and cylindrospermopsin) and utilities have been struggling with how to manage bloom events and optimize treatment to remove cyanotoxins.

This webcast will highlight the effectiveness of conventional and advanced treatment processes for managing intracellular and extracellular cyanotoxins while minimizing unintended consequences. In addition, a summary of the Hazen-Adams CyanoTOX model v.2.0 will be presented. Case studies will be used to illustrate how the model worked at various utilities and will be used to provide a basis for evaluating treatment options. Overall, the model can also be used to evaluate different treatment scenarios during water treatment plants’ decision-making processes, allowing plant managers and operators to make informed decisions about which and how much oxidant is needed to meet their water quality goals.

8/29/2017Short-Term Water Demand Forecasting
With changing trends in water use, there is interest in improving demand forecasting to support utility operations and planning. This webcast will highlight results from the project Short-Term Water Demand Forecasting: Survey, Manual and Research Report. The project investigated the advantages and disadvantages of various approaches to short-term water demand forecasting and provides practical guidance to water utilities in choosing, implementing, and evaluating forecasting methodologies. The project focused on prediction over a time horizon of less than ten years, intended to inform decisions regarding budgeting, revenue planning, rate design, program implementation, and efficient management of system operations.

The webcast will focus on utility case studies that were created during the project and discussed in the research report, Improving the Accuracy of Short-Term Water Demand Forecasts (report #4501A). This report offers evaluations of forecasts created by the six participating water utilities or by the researchers to illustrate the advantages and disadvantages of various short-term demand forecasting methodologies.

The webcast will also discuss the Short-Term Water Demand Forecasting Manual (report #4501B) at a high level. This manual is designed to serve as reference material for water utilities that wish to develop short-term consumption forecasts. The manual provides a review of 53 published forecast evaluations; an analysis of 20 years of El Paso Water Utilities’ data, used to demonstrate several alternative estimation and forecasting practices; and a survey of utility forecast practices.