Accurately characterizing point source phosphorus and communicating that description is a critically important step in the development of a total maximum daily load (TMDL) and the supporting water quality modeling. This is particularly critical for low phosphorus targets, which result in small wasteload allocations. Small wasteload allocations mean point sources must spend millions of dollars i...

Modeling is considered an inherent part of design, operation and optimization of Water Quality Systems. Models are used for running so-called Virtual Experiments, such as Simulation and Uncertainty Analysis. Since the complexity of VE’s is constantly increasing, there is a need for techniques that allow for timely execution of complex VE’s on real-world models. This paper touches several of the...

• Empirical and kinetic models dominate data-driven in SN water quality modeling. Models are mainly developed for prediction process understanding. using limited field data, while experimental data often used. exhibit overall low to moderate performance real SNs. Future work should focus on appropriate resolution, hybrid model transferability. Urban sewer networks (SNs) increasingly facing issu...