Land Application of Wastewater: Water Balance
Water balance is a critical component of wastewater land application design, influencing irrigation, storage requirements, land needs, and overall project costs. In this presentation, Dr. Clifford Fedler explains key water balance principles and compares proven design methodologies to help municipalities and engineers make more informed infrastructure decisions.
Water Balance | Frequently Asked Questions
-
Water balance is the engineering process used to determine how much wastewater can be applied to land, how much storage is needed, and how much acreage is required for a particular crop. It serves as the foundation for designing safe, efficient, and compliant land application systems.
-
This presentation compares two commonly used methods: the traditional TCEQ Guidelines and the Texas Tech Method. Dr. Fedler explains how each approach calculates irrigation and leaching differently—and why accounting for soil storage can lead to more efficient system designs.
-
Understanding soil moisture, field capacity, available water, evapotranspiration, and leaching is essential for designing successful land application systems. This presentation explores how these natural processes influence irrigation scheduling and overall system performance.
-
Engineering calculations directly affect the amount of land, storage volume, and infrastructure required for a project. Dr. Fedler demonstrates how different design methodologies can produce significantly different project requirements and overall costs.
-
No. While water balance is a critical first step, successful wastewater land application projects also require nitrogen balance and salt balance evaluations to ensure long-term environmental performance and regulatory compliance.
-
A copy of the presentation can be found here.
Ready to Drive Innovation Forward?
Let’s connect - we would love to discuss ways we can partner together.