A Unified Optimization?Simulation Aquifer Management Model
The optimal management scenario for a groundwater production system represents a delicate balance between the water production operational schedule, which will result in the least demand...
An Optimal Parameter Estimation Model for Groundwater Resource Management
An optimal parameter estimation model is developed to identify the locations of wells, to determine pumping magnitude, and to calculate transmissivity coefficients in a confined aquifer...
Quality Control and Quality Assurance Plan for Bridge Channel-Stability Assessments in Massachusetts
A quality control and quality assurance plan has been implemented as part of the Massachusetts bridge scour and channel-stability assessment program. This program is being conducted by...
Quality Control in Evaluating Scour at Bridges
Quality control procedures currently in use for conducting statewide bridge scour screening and evaluation studies are described. The procedures address bridge scour screening and calculation...
Hurricane Andrew in South Florida: Steps to Recovery and Lessons Learned
This is the second part of a two-part paper which analyzes the development and impact of Hurricane Andrew in South Florida. The paper specifically deals with the experiences of the South...
Wetland Restoration in the Dutch Dune Area
Interference by man has affected the natural Dutch dune area seriously. The harmful effects of drinking water supply activities include low groundwater tables in the valleys, unnatural...
Modeling the Operation of a Water Quality Reservoir and its Effect on the Sacramento-San Joaquin Delta
The methodology used to model the operation of a 100,000 acre-feet (123 million cubic meter) water quality reservoir in Contra Costa County, California is described. Planning studies integrated...
Quantification of Uncertainties in a Water Quality Model with Application to the Sacramento-San Joaquin Delta
A methodology is described that allows a quantitative verification of water quality models. The methodology provides a quantitative analysis of model accuracy that takes into account different...
Relationships Between Flow and Benthic Communities
Current flows can affect directly factors critical to the survival of benthic communities, including the availability of food and nutrients, the chemical quality of water surrounding benthic...
Predicting Water Quality at Municipal Water Intakes?Part I: Application to the Contra Costa Canal Intake
The factors affecting water quality at a municipal surface water intake in the Sacramento-San Joaquin Delta are discussed. A model is developed that successfully predicts the seawater...
Predicting Water Quality at Municipal Water Intakes Part 2: Application to the Southern Sacramento-San Joaquin Delta
Work in progress on developing methodologies for predicting water quality at Municipal intakes in the Sacramento-San Joaquin Delta is discussed. Principal sources of salinity are identified...
Simulating THM Precursors Transport with DWRDSM
A study was conducted by the California Department of Water Resources (DWR) to demonstrate the ability of its Delta Simulation Model (DWRDSM) to simulate fate and movement of inorganic...
A 2-D Lake Model with Artificial Destratification
Artificial destratification of lakes and reservoirs is used to influence a variety of water quality parameters. It relies on localized, vertical mixing of the water column and the subsequent...
Stratification Models Sensitivity to Solar Radiation Data
A one-dimensional water quality model (WESTEX model) for simulation of thermal stratification is used to test the performance of such models related to hydrometeorological input data....
Hydrodynamic and Toxic Contaminant Dispersion in the Lower St. Marys River
A numerical model that simulates the hydrodynamics and the transport of toxic contaminants in the Lower St.Marys River is being calibrated and verified using field data from the U.S. Army...
Wind Induced Circulation in Shallow Lakes
Clear Lake is a relatively shallow lake in Northern California. Natural flows are small but at times they do transport heavy metals into the lake. In order to predict water quality constituent...
Urban Storm Water Instrumentation: a Field Observation
The Dallas-Fort Worth, Texas metroplex has 7 cities with populations of at least 100,000 that are required to meet national Pollutant Discharge Elimination System (NPDES) permitting requirements...
An Improved Method for Measuring System Performance of Hydraulic Infrastructure Systems
Due to the public awareness of the importance of functioning of hydraulic infrastructure systems and the serious consequences caused by their failure, many researches were undertaken to...
Quantity and Quality of Dry Weather Flow in Las Vegas Valley, Nevada
In recognition of the potential for dry weather flows to convey pollutants from the Las Vegas Valley, the potential economic and resource value of these flows within the Valley, and the...
Integrated Planning Analysis for an Aggregate Mine
Planning and design work of an aggregate mining facility within the Sutter Bypass, a key component of California's flood control system, is being performed by multidisciplinary team of...
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