WERF INFR4R12-Sewer Lateral Electro Scan Field Verification Pilot
WERF selected a proposed research project to field test an emerging technology, called Electro Scan, which finds defects in laterals…
MS4 Permit Compliance: On the Road to Success. The Montgomery County, MD MS4 Program
As communities and public agencies across the country wrestle with how to address our next water quality challenge – stormwater…
Using Activity Based Costing (ABC) to Sustain CMOM Compliance Division of Sewerage & Drainage, City of Columbus, Ohio
To sustain success the managers of the City of Columbus, Ohio sewer collection system want to better understand their resource…
Nutrient Trading in the Coosa Basin: A Feasibility Study
The Coosa Basin Nutrient Trading Framework is a feasibility study for water quality trading in Georgia. It is the first…
Evaluation of Refinery Secondary Clarifiers and the Relationship between Sludge Settling Velocity and Sludge Volume Index
The empirical parameters for the sludge settling velocity (Vo, m/hr) and sludge settling rate constant (k, m3/kg) in a secondary…
Radically Increasing Treatment Facility Capacity of Low-Rate Anaerobic Treatment System with Minimal Investment
Dean Foods Company needed to increase the capacity of its pretreatment facility at its Garelick Farms facility in Lynn, Massachusetts….
Combining Bioaugmentation and Wet Weather Treatment Minimizes Capital Costs
The high costs of expanding and upgrading treatment wastewater treatment plants for nitrification or biological nutrient removal has spurred many…
Locating Areas of Infiltration/Inflow Using Existing Pump Station Run Time Data
Inflow and Infiltration (I/I) problems place an additional burden on collection systems, wastewater treatment facilities and can be very costly…
Evaluation of Stormwater Retrofits to Achieve Numeric Standards
The USEPA and other regulatory agencies are considering significant changes to their stormwater regulatory programs. Two areas currently being discussed…
Upgrading from Maximo v4.1.1 to v7.5 at the Metropolitan Sewer District of Greater Cincinnati
The Metropolitan Sewer District of Greater Cincinnati (MSD) Wastewater Treatment Division (WWT) has been using IBM’s Maximo Asset Management v4…
Stormwater Management Retrofit Costs: Why Is It So Hard To Predict?
Design, construction, and maintenance costs for stormwater control measures (SCMs) are a major concern as new regulations are under consideration…
Evaluation of Process Improvements and Membrane Filtration for Treatment of a Highly Variable Surface Water on Maui, Hawaii
The County of Maui Department of Water Supply (DWS) provides water to the nearly 150,000 residents of the island. DWS…