Brief History of Stormwater Treatment Areas and Pump Stations
Owing to the highly variable nature of flows and water quality of CSOs for centralized as well as satellite CSO…
Beyond Risk – A community Return on Investment Approach to Pipe Rehabilitation
American water resource agencies are increasingly turning to risk analysis to prioritize replacement and rehabilitation (R&R) activities, especially for distribution…
Between a Tree and a Hard Place: Public Involvement in Sewer System Planning
The Orange Water and Sewer Authority (OWASA) is the water and sewer service provider for the areas of Chapel Hill…
Atlanta Goes to Market: A Practical Guide to Contracting Beneficial Reuse Technology And Services through an Open Procurement
As part of the City of Atlanta’s ongoing responsiveness to the community’s wishes to eliminate incineration and landfilling, a combined…
Asset of Recycled Water Irrigation in Central Oahu
Although water recycling has been practiced successfully in Hawaii for over 70 years, the fate of constituents applied over unconfined…
Asset Management: the Life-Cycle Approach
This paper is a non-technical introduction to asset management — what it is, why it is needed, what its benefits…
Asset Management: Successes in Changing Cultures
The paper presents a purely industry point of view of asset management; the views of the consulting community, and particularly…
Arizona's Largest Condition Assessment
Brown and Caldwell was retained by Pima County Wastewater Management Department (PCWMD) to assess the condition and recommend improvements to…
Approaching the Limits of Technology: Atlanta's Utoy Creek WRC Delivers Award-Winning Nutrient Removal
In the 1990s, the City of Atlanta (City) developed a comprehensive approach to reducing phosphorus levels from the discharges of…
Applying Mass Balance Principles To Optimize Plant Operation and Asset Future Capacity Needs
Solids mass balancing is an effective tool to optimize plant operation and assess future capacity needs in wastewater treatment plants….
Anoxic or Anaerobic Selectors: Which is Better?
Obtaining reliably high compaction characteristics and low SVI values has enormous economic consequences on activated sludge plant design and operation….
An Overview of the Lincoln, NE Nitrifying Activated Sludge System, Control of Filamentous Builking with an Anoxic Selector and Enhancing System Performance with an Automatic Solids Retention Time Control System
The City of Lincoln, Nebraska Theresa Street Wastewater Treatment Facility (WWTF) has recently made several modifications to the activated sludge…