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Brian Petty, PE

Brian Petty is a Senior Principal Engineer based in California with more than 23 years of experience focused on chemical and civil engineering related to water management, conveyance and treatment, and replenishment programs. He supports public and private clients seeking to enhance existing operations, design and construct new capital project water infrastructure, and address environmental challenges.

Brian Petty is a Senior Principal Engineer based in California with more than 23 years of experience focused on chemical and civil engineering related to water management, conveyance and treatment, and replenishment programs. He supports public and private clients seeking to enhance existing operations, design and construct new capital project water infrastructure, and address environmental challenges.


Relying on his deep experience in process engineering and water and wastewater treatment, Brian has designed, implemented, and operated many water production, conveyance, and treatment systems. Clients value the integrated water vision and holistic approach that he brings to each project, and Brian is a leader in advancing OneWater concepts with clients from public utilities and a range of industries.

His work includes supporting industrial wastewater pretreatment systems featuring beneficial reuse and an innovative fixed-film bioreactor treating selenium and nutrients in urban runoff without water loss to downstream habitat. For a complex Superfund groundwater extraction and treatment system with potable end use, Brian engineered a system that successfully and reliably treats naturally occurring inorganic constituents, 1,4-dioxane, heavy metals, emerging chemicals, disinfection byproducts, and trace organics.

To advance the state of the practice, his team recently developed an innovative and cost-effective biological treatment process for 1,4-dioxane, and they are developing novel PFAS treatment technologies. In addition, he has designed materials-recovery systems to reclaim resources such as trace precious metals from wastewater.

Because he understands that water is key to business resilience and that water scarcity can place tremendous cost and compliance pressures on clients' operations, Brian also advises his clients on ways to implement water foot-printing studies that can help them decrease water use and develop sustainable supplies. The resulting plans and designs for innovative water metering, treatment, and reuse programs allow his clients to make better use of scarce resources, improve resilience, and achieve sustainability goals.

Contact Brian Petty at This email address is being protected from spambots. You need JavaScript enabled to view it. or +1-714-969-0800.

Career Summary of Brian Petty, PE

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  • Specialties: Water Treatment and Delivery; Industrial Water Management; Drinking Water Supply and Treatment; Wastewater Treatment, Specialized Water Treatment Technologies; Environmental Assessment and Remediation;
  • Practice Areas: Environmental Management, Water Management
  • Disciplines: Chemical Engineering, Civil Engineering, Environmental Engineering
  • Education: MBA, California State University, Fullerton, California, 2007; BS, Chemical Engineering, University of Nevada, Reno, Nevada, 2001
  • Registration: California Professional Engineer, 68707; Washington Professional Engineer, 42563; Tennessee Professional Engineer 124755

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