The conversation the Consulting Engineer and the Utility Manager Ought to Have: What Does Getting More for Less Mean?
In an era of greater expectations from the public for greater efficiency in utility operations, managers are examining all aspects…
Sustainable I/I Reduction: Planning Level Cost Estimation Using a Performance-Based Cost Function
The cost of sustainable infiltration and inflow (I/I) reduction is dependent on the sources of I/I and the methods used…
Sustainability: Opportunities at Your Facility to Think Globally and Act Locally
All over the world, people are re-evaluating the old ways of “doing business,” in favor of longer-range planning. This is…
Sustainability, One
As a utility in one of the fastest-growing regions of Puget Sound, the LOTT (cities of Lacey, Olympia, and Tumwater;…
Study of Raw Wastewater BOD5 and cBOD5 Relationship Yields Surprising Results
A study of the relationship of the raw wastewater BOD5:cBOD5 ratio was conducted at three wastewater treatment plants across the…
So, You Decided to Build an MBR? Tips to help optimize process performance.
Tips to help optimize process performance. Membrane bioreactors (MBRs) are a viable treatment alternative when a wastewater utility has footprint…
Stormwater Utility Funding
Cities nationwide are under regulatory pressure to upgrade local stormwater utility programs to comply with increasingly stringent NPDES permits. For…
Sludge Quality: The Key to Secondary Clarifier Performance
Within the wastewater treatment profession there is considerable disagreement as to the best method for controlling the activated sludge process…
Sizing Denitrification Filters
Although different in many respects, the Littleton-Englewood (Colo.) Wastewater Treatment Plant (WWTP) and the Orange Water and Sewer Authority (OWASA)…
Should I Keep It or Replace It? A Risk-Based Approach to Making Asset Rehabilitation and Replacement (R&R) Decisions.
Most of the US wastewater assets that went into operation 25 to 30 years ago in response to the Clean…
Shifting From Disposal to Sustainable Resource-Based Strategies — Implementing LOTT's Wastewater Resource Management Plan
This paper discusses implementation of the LOTT Wastewater Resource Management Plan (Brown and Caldwell, 1998) from planning through finance and…
Security in our Nation's Capital – The DC WASA Perspective
Most people do not think of wastewater systems as significant vulnerabilities or as being prone to malevolent, intentional acts. Most…