Beneficial Use of Marginal Quality Water

Author(s): Kellogg, W.

The Mississippi Alluvial Aquifer is the most heavily used aquifer in the state of Mississippi. Extensive use of the aquifer has overdrawn the aquifer in some areas and caused large cones-of-depression making continued pumping at the current rate unsustainable. The alluvial aquifer overlies deeper aquifers of the Mississippi Embayment Aquifer system. The alluvial aquifer can be as much as 250 feet thick and the Mississippi Embayment Aquifer system can be as much as 6,000 feet in thickness. Water usage is approximately 2 billion gal/day from the alluvial aquifer and 433 million gal/day from the deeper Mississippi Embayment Aquifers.

Many of the deeper aquifers contain fresh water (<500 mg/l TDS) in the northern part of the Mississippi Embayment, but TDS concentrations increase in the southern portion of the Embayment making the water unsuitable as a potable water supply without treatment. Many industries use fresh water supplies when they could be using brackish water (TDS 1,000 to 10,000 mg/l). In addition, desalination technology has improved a great deal in the past decade making desalination of brackish water a cost effective solution for obtaining additional sources of water supply.

Desalination of brackish water is becoming common in Florida, Texas, and California. Other states are now beginning to look at their brackish water aquifers as potential future supplies of potable water.


Technical Presentations

  • Delta Water Quality
  • Delta Water and Agriculture
  • Wetlands
  • Water Quality
  • Sediments
  • Non-Point
  • Management and Sustainability
  • Wood Treatment
  • Modeling
  • Soil and Water Treatment


Responsible Site Design: Implementing Innovative Stormwater Management Strategies

The primary goal of the workshop is to create a dynamic learning experience that examines the role of stormwater management in the built environment. The workshop will focus on integrating ecologically sound water management approaches into site design. After the workshop, attendees will be familiar with the following concepts and technical issues:

  • Knowledge of the stormwater treatment chain
  • Knowledge of the impact of land use codes on stormwater management
  • Application of a design process that mitigates the effects of stormwater on-site
  • Knowledge of the relationship between land use codes and design for innovative stormwater management


For information contact:
Jessie Schmidt
Box 9680
Mississippi State, MS 39762