Approaching Storm: NPDES Phase II Stormwater Rule Deadline Nears
Water Engineering & Management
September 2002
David Woelkers
In December of 1999, the United States Environmental Protection Agency (EPA) published the National Pollutant Discharge Elimination System (NPDES) Phase II Stormwater rule in the Federal Register. The issuance of the rule started a clock that has had municipalities, and stormwater professionals working to understand and evaluate its implications.
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Concord, N.C. - A Proactive Approach to Beginning a CMOM-Based Program
Water Engineering & Management
August 2002
Ron Geiger, PE, and Todd Schuster
The federal government is in the process of establishing a CMOM philosophy for wastewater collection and treatment facilities that hinges on an aggressive, proactive approach, calling for utilities to act like investigative reporters rather than firefighters. Eventually, utility providers will have to follow federal CMOM guidelines, and states may establish similar guidelines.
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Feasibility Study Proposes Inflatable Dam
Water Engineering & Management
November 2001
By Garnet Daus
>The Wyoming Valley (Pa.) Inflatable Dam Feasibility Study recently received a National Honor Award in the studies, research and consulting engineering services category at the ACEC Engineering Excellence Awards Competition. The annual event celebrates engineering achievements that demonstrate the highest degree of merit and ingenuity.
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Trends in Sewer Overflow Management
Water Engineering & Management
February 2001
Hubert Fleming, Ph.D., and David Slack
In this era of environmental stewardship, large cities and counties are faced with increasing pressure not only to deliver safe potable water supplies but also to treat combined and stormwater flows.
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Pumps Give Stormwater the Shaft
Water Engineering & Management
October 2000
As part of an extensive scheme to further improve bathing water standards in the Brighton and Hove (England) area, a project for the diversion of stormwater is now in full operation.
Updated Sewage System Gives Tourists a Lift
Water Engineering & Management
September 2000
Cecil Coombs, P.E.
Sewage overflow caused by the influx of visitors during tourist season prompted one community to improve its collection and treatment system.
Tucson Trunk Sewer Repaired Without Disrupting Flow
Water & Wastes Digest
March 2000
Using a temporary sewage bypass pumping system and its nondisruptive pipe rehabilitation methods, Insituform Technologies, Inc. of Chesterfield, Missouri, has rehabilitated a half-mile-long section of trunk sewer buried beneath a roadway in Tucson, Arizona.
Video Drain Inspection Cuts Maintenance Costs
Water & Wastes Digest
July 1999
Knowing the location of underground drains and lines and their condition is important to running an efficient manufacturing operation. To accomplish this, the Ridge Tool Company engineering team uses two relatively new tools for industrial maintenance: electronic locators and video inspection.
Spin Away Odor and Decay in Sewage Drop Structures
Water Engineering & Management
February 1999
Fred J. Banister, P.E.; William P. Moeller, Jr., P.E.; Eugene M. Natarius, Ph.D; and Karla M. Sampson
The corrosion and odor problems of hydrogen sulfide emissions can be lessened by using this vortex drop structure design.
Selection Criteria for Wastewater Pumps Part 3
Water Engineering & Management
November 1998
Bayard Bosserman, P.E. and Paul Behnke, P.E.
This article summarizes the criteria for selecting pumps for specific wastewater applications.
Selection Criteria for Wastewater Pumps (Part 2)
Water Engineering & Management
October 1998
Bayard Bosserman, P.E. and Paul Behnke, P.E.
The second part of this article compares the different types of pumping stations available to the wastewater industry.
Selection Criteria for Wastewater Pumps
Water Engineering & Management
September 1998
Bayard Bosserman, P.E. and Paul Behnke, P.E.
Part 1 of this article discusses the types of wastewater pumps available and the need for screens.
Dealing with EPA Flow Monitoring Compliance
Water Engineering & Management
May 1998
Amy Fardo Patsey, E.I.T.
Flow monitoring devices can help prevent raw sewage discharges and bring municipalities into compliance with the Clean Water Act.
Baton Rouge Sliplines Sewer Lines
Water Engineering & Management
March 1997
Seventy-year-old sewer lines were badly cracked and corroded, and segmented PVC pipe prevented a collapse.
Trenchless Sewer Repair Underway in Indianapolis
Water & Wastes Digest
November 1996
When the Chamber of Commerce of Indianapolis, Ind., issued its ÒGetting Indianapolis Fit for Tomorrow (GIFT)Ó report, the city's new mayor received some alarming news: the city had a $1.1 billion deficit in its infrastructure. The City Council's report urged action, insisting that a solid infrastructure would be vital to the city's future.
Accurate Flow Critical for Successful I & I Studies
Water & Wastes Digest
September 1996
In the fight to relieve pressure on wastewater treatment plants from having to treat excessive amounts of clean water pouring into sewer systems from rainfall events, municipalities and their consultants have been building hydraulic models to determine the most cost-effective method for rehabilitating deteriorating systems.
Town Stops Over Half of Their Total I & I
Water Engineering & Management
August 1996
George Rosendaul, Richard Engle and Bob Waite
Two items costing less than $250 were installed by city personnel resulting in a substantial reduction in inflow and infiltration.
Key Design Considerations, Recent Ruling
Water & Wastes Digest
May 1996
Denise Shaffer
Municipalities face an increasing need for repair and rehabilitation of existing wastewater and stormwater systems. This need has arisen as a result of neglect, deterioration, or inadequate hydraulics resulting from development.
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