Confluence Engineering Group LLC Employee Directory
Civil EngineeringWashington, United States2-10 Employees
Confluence Engineering Group LLC is a small, woman-owned civil engineering firm based in Seattle, Washington, focusing on drinking water quality engineering, planning, and applied research. It provides technical services to support the management, operation, and regulatory compliance of drinking water systems for clients worldwide. The company was founded in 2008 by Melinda Friedman, P.E., and Michael Hallett, who serves as COO. Its practice covers a broad range of drinking water quality issues, including bench and pilot testing for treatment and distribution, corrosion control for lead and copper, and optimization of surface and groundwater treatment processes. It also conducts distribution system mains cleaning, supports risk minimization when integrating new water sources, and develops building water quality risk management plans to address Legionella, Pseudomonas, lead, and other concerns. Additional work includes risk and resiliency assessments, management of iron and manganese in the distribution system, improving drinking water aesthetics, and optimizing secondary disinfection.