We Value Relationships

Maintaining long lasting and rewarding relationships with clients and teaming partners, and among staff members is our top priority. We have established and sustained those long lasting relationships through loyalty and an unwavering commitment to excellence. PBI is a specialized firm with a strong family culture that encourages camaraderie among our employees. The success of our company is a result of the quality staff that we have assembled over the years.

Dave Peterson, PE

Dave Peterson, PE

Principal emeritus


Mr. Peterson is a founding Principal of Peterson Brustad Inc. He specializes in planning, design, and implementation of water projects, and has managed projects of all sizes. He understands public involvement, the environmental process, permitting, financing, right-of-way acquisition, design, and construction of water resources, drinking water, and wastewater projects.

His planning experience includes water supply plans; integrated water resources plans, river restoration, dams, water distribution, storm drains, wastewater master plans, water and wastewater treatment plant siting, water quality improvement projects, bridge hydrology/hydraulic studies, flood control plans, FEMA flood studies, and FEMA & ULDC levee accreditation.

His design experience includes gravity and pressurized pipelines, storm drainage systems, levees, floodwalls, detention basins, river restoration, erosion control, dams, spillways, canals, water tanks, pump stations, and water and wastewater treatment plants.

Dave has a B.S. and an M.S. in Civil Engineering from Montana State University.

Karl Brustad, PE, MBA

Karl Brustad, PE, MBA



Mr. Brustad is a founding Principal of Peterson Brustad Inc. He has more than 25 years of experience in the planning, design, and construction of stormwater, wastewater, and potable water supply projects.

His experience includes groundwater and surface water treatment, storage tanks, pumping stations, pipelines, wells, telemetry, and SCADA systems. He has authored several water and wastewater master plans and is intimately familiar with a variety of modeling applications.

Karl’s entire professional career has been centered around water including over five years working for a water utility. It’s this experience that allowed Karl to manage design consultants and learn first-hand the do’s and don’ts of consulting. In addition, Karl is a licensed Grade IV Water Treatment Plant Operator.

Karl has a B.S. in Civil Engineering from CSU Chico and an M.B.A. from CSU Sacramento.

Karl enjoys spending time with his wife Colette and his children Ivan and Rena. Karl enjoys hiking, hunting (especially archery), fishing (especially with a fly rod), golfing, boating, and remains active in team sports - softball and basketball.