Alleviation of Surface and Subsurface Drainage Problems by Flexible Delivery Schedules

Saturated/Unsaturated Subsurface Flow and Salinity Transport Using Method of Lines

Degradation of Organic Matter in the Subsurface - A Modelling Approach

Vacuum Induced Remediation of Subsurface Contamination with Horizontal Wells

The Coupled Effects of Subsurface Heterogeneities and Nonequilibrium Sorption Processes on Solute Transport

Geotechnical Baseline Reports of Underground Construction
Guidelines and Practices
For many years, several forms of interpretive geotechnical reports have been incorporated into the Contract Documents for underground construction projects. Based on recent feedback obtained...

Geotechnical Baseline Reports for Underground Construction

Analysis of Productivity on a Tunnel Operation Using Computer Simulation

Groundwater
An Endangered Resource
This proceedings, Groundwater: An Endangered Resource, contains papers presented at the 27th Congress of the International Association of Hydraulic...

Geophysical Exploration for Engineering and Environmental Investigations
The U.S. Army Corps of Engineers has prepared this Manual, Geophysical Exploration for Engineering and Environmental Investigations, to provide an introduction for...

Determination of the Most Cost-Effective Technology for Subsurface Remediation

Measurement of Subsurface Vortices in a Model Pump Sump

Hydraulics of Subsurface Flow Constructed Wetlands
Resistance to flow through subsurface flow wetlands is described by Darcy's law or by Ergun's equation. Both representations are combined with the continuity...

An Evaluation of Drainage Conditions in the San Joaquin Valley
The discovery of deformities and deaths of aquatic birds at Kesterson Reservoir in 1983 substantially altered the perception of agricultural subsurface drainage water threats in the San...

Drainage Ponds and Demonstration Wetlands
In California's southern San Joaquin Valley, subsurface irrigation drainage pumped into shallow evaporation ponds often contains elevated concentrations of selenium. The selenium...

Economic Incentives Encourage Improvements In Farm-Level Water Management Practices
The Broadview Water District has implemented economic incentive programs in recent years to encourage improvements in irrigation practices to reduce the volume of subsurface drain water...

Dynamic vs. Quasi-Static Effluent Limits
Selenium water quality objectives are currently being exceeded in the San Joaquin River, California due to agricultural subsurface drainage discharges. The Federal Clean Water Act requires...

Non-point Source Policies for Agricultural Drainage
There is limited experience in regulating the water quality impacts of nonpoint source subsurface agricultural drainage discharges. Recent efforts in California to regulate selenium discharges...

Periodic Variation in Karst Stream Losses
A cave taking water from an ephemeral stream periodically reroutes surface and subsurface drainage because of a plug that forms 10 m below the main entrance to the cave. The plug of sand,...

BMP for Control of Agricultural Nonpoint Source Flow
Nine ha of spring wheat were sprinkle irrigated with drainwater from 15 subsurface drains. The objective was to demonstrate that use of drainwater for irrigation improves the net efficiency...

 

 

 

 

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