Robert L. Doneker, PhD, PE

Mixzon Inc

Dr. Robert L. Doneker, PhD., P.E. is the President/CEO of MixZon Inc.

Dr. Doneker has over 30 years of experience in environmental engineering, teaching, and professional practice. Dr. Doneker has authored over a dozen publications on mixing zone analysis and key USEPA mixing zone guidance documents. Dr. Doneker is the primary developer of the CORMIX software for mixing zone analysis.

In addition, Dr. Doneker has instructed mixing zone modeling workshops that several USEPA regulators and DEQ permit writers from several states have attended.

MixZon Inc. specializes in technology development for Regulatory Mixing Zone analysis, outfall design and modeling. MixZon was established by Dr. Doneker in 2002, and has over 8000 clients worldwide who use its mixing zone modeling software – CORMIX. MixZon offers mixing zone modeling, licensing, consulting, technical support, training and field monitoring services. MixZon Inc. is a small business located in Portland, Oregon USA.

CORMIX is a USEPA-supported mixing zone model and decision support system for environmental impact assessment of regulatory mixing zones resulting from continuous point source discharges. The system emphasizes the role of boundary interaction to predict steady-state mixing behavior and plume geometry. The CORMIX methodology contains systems to model single-port, multiport diffuser discharges and surface discharge sources. Effluents considered may be conservative, non-conservative, heated, brine discharges or contain suspended sediments. Advanced information systems provide documented water quality modeling, NPDES regulatory decision support, visualization of regulatory mixing zones, and tools for outfall specification, design and optimization.

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