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Aquifer Storage and Recovery at the Centennial Water and Sanitation District
water in a suitable aquifer, the peak time capacity of CWSD could be increased while delaying the water treatment plant (WTP) expansion currently scheduled for 1996. To validate this assumption,...

Denver's Direct Potable Water Reuse Demonstration Project
The Denver Potable Water Reuse Demonstration Project was created to provide definitive answers to the interrelated questions of product quality, public health, technical and economic feasibility,...

Potable Water Reclamation?A Practical Option to Traditional Sources
This paper describes the development of potable water reclamation alternatives to meet the future municipal water needs of the City of Colorado Springs, Colorado. By the year 2042, the...

Water Polishing by Constructed Wetland Ecosystems
This paper gives results of a five-year study of minerals and nutrients reduction in a large constructed wetland facility in Central Florida, on the periphery of Orlando. The 120 ha system...

Dam Safety Issues Related to Urban Detention Ponds
Detention ponds located within or adjacent to individual residential developments provide significant benefits by improving water quality and preventing damages from floods up to the design...

Channel Stabilization and Retrofit
In 1990 King County Surface Water Management Division completed the Soos Creek Basin Plan. This basin was one of the most rapidly developing areas in the State of Washington. The goal...

Plate and Frame Membrane Air Stripping
This paper examines utilization of a plate and frame membrane air stripping system for the removal of volatile organic chemicals (VOCs) and radon from a water supply. Previous work explored...

Surface Water Quality Modeling in the Rio Grande
The City of Albuquerque (City) in New Mexico owns and operates the Southside Water Reclamation Plant (SWRP), which discharges an average of 200623 m³/d...

MPOS Become VIPS
The 1991 Intermodal Surface Transportation Efficiency Act made metropolitan planning organizations very important players in transportation decisionmaking. MPOs have been around since...

Different Methods to Compute Pollutant Dispersion Around Buildings
Different methods to approximate the advection terms currently in use are reviewed. Holly-Preismann (HP) cubic interpolation using method of characteristics, Chapeau function (CF) method...

How Many Observation Wells Does it Take to Find a Groundwater Contamination Plume?
A Bayesian data worth framework is developed to balance the benefits and costs of data collection. In addition to Bayesian decision analysis, tools from Monte Carlo simulation, numerical...

A New Automated System for Decision Support in the Construction Industry
This paper describes a collaborative project to research and develop a computer based decision support system for the construction industry. The system is intended primarily for use during...

CAD-Based Intelligent Drawings: An Automated Quality Control Approach to Land Development
Computer-Aided Design (CAD) is currently used within every discipline of civil engineering. Initially, CAD was employed solely as a drawing/drafting tool. Current CAD packages, in conjunction...

Modeling Initial Mixing of Ocean Wastewater Discharges to Develop Toxic Effluent Limitations
The UM model, released by USEPA in 1992, was utilized to simulate the initial mixing of a discharge to the Atlantic Ocean near Ocean City, New Jersey. The study included field verification...

Public Perceptions of Fresh Water Issues
Risk management takes place in a context of public perceptions of fresh water quality, quantity, and availability. Regardless of their consistency or inconsistency with expert opinions,...

Coastal Eutrophication and Temperature Variation
A 3-D hydroecological model has been developed to simulate the impact of climate-change-induced daily temperature variation on coastal water quality and eutrophication. Historical daily...

Climate Change
The wide range of predictions from global climate models most often encourages a wait-and-see approach. These uncertainties and a trust that conventional policy is sufficient to accommodate...

Controlling Lead and Copper Corrosion and Sequestering of Iron and Manganese
With the recently enacted Lead and Copper Rule (LCR), many utilities are faced with the conflict of meeting the requirements of the Rule and controlling aesthetic problems caused by source...

Modeling Issues of Copper Solubility in Drinking Water
The paper discusses the application of a model to the solubility of copper in drinking water. This paper is the result of numerous forms of pitting corrosion and pipe failures. Monitoring...

The Effects of NOM and Coagulation on Copper Corrosion
Copper corrosion was examined in solutions containing natural organic matter (NOM) and in situations where NOM was removed by enhanced coagulation with alum or ferric chloride. Electrochemical...

 

 

 

 

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