Centralized collection—using large diameter interceptors, trunk lines and transfer sewers—has frequently been the backbone of a wastewater collection system for centuries. In the United States, many large diameter sewers have been in service well past their design life, and consequently, we’re seeing more headlines in the local newspapers of sinkholes, pipe collapses and overflows taking place when these aging sewer systems fail. CH2Mer Daniel Buonadonna shared a case study on the City of Portland's strategy for rehabilitating one of its oldest brick sewers at the Water Environment Federation's Technical Exhibition and Conference (WEFTEC) this week.
The City of Omaha is in the process of implementing a $2 billion Long Term Control Plan to control combined sewer overflows (CSOs). While significant portions of the controls are structural, including tunnels, tanks, treatment systems and sewer separation, the City is also including Green Infrastructure projects. Read today's Access Water blog or join CH2Mers Patricia Nelson and Tom Heinemann, along with Jim Theiler with the City, on Wednesday, for an update on the program at this year’s WEFTEC.
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Next week, from September 26-30, CH2M will be headed to Chicago, along with more than 22,000 water professionals, to participate in all that WEFTEC, the Water Environment Federation’s Annual Technical Exhibition and Conference, has to offer. The conference, being held at McCormick Place, is the largest of its kind in North America. From technical presentations and workshops to networking with other industry professionals, we are looking forward to participating in WEFTEC 2015. CH2M's Global Leader for Wastewater Julian Sandino highlights the major activities CH2Mer's will be involved in during this year's conference.
In 1998, First Utility District (FUD), in Knox County, Tennessee, conducted a self-audit of its wastewater collection system, which identified opportunities for improvements, and since 2000 has invested in typical programs, such as capital improvement planning, grease control, root control, manhole inspection, sewer line cleaning, close circuit television, smoke testing, flow monitoring, sewer manhole and pipe rehabilitation, and pump station operation and maintenance, to successfully reduce the number and volume of overflows in its system. FUD and CH2M did a follow-up audit of the District’s CMOM (Capacity, Management, Operations, and Maintenance) program in 2013 to take a closer look at not only the documentation of CMOM activities, but also at the effectiveness of the program. Today at the 2015 WEF Collection Systems Conference, CH2M's Kevin Colvett and FUD's Patrick Spangler will present on the benefits of investing in the tools of CMOM and evaluating CMOM activities. Check out their Access Water blog to learn more.