Civil and environmental engineering design services specializing in sustainable water and wastewater systems
EPD Consultants provides civil and environmental engineering design services with a focus on sustainable water-related projects. It specializes in alternative and decentralized wastewater treatment systems, greywater reuse, stormwater management, and green building technologies for residential, commercial, and municipal clients.
Kevin PoffenbargerPrincipal Engineer
Comprehensive design services for land development, roadways, utilities, hydrology, and municipal infrastructure.
Specialized engineering for alternative, decentralized, and on-site wastewater systems, water reuse, and stormwater capture.
Full-lifecycle support including project management, construction oversight, permitting, and quality assurance.
Residential · Commercial · Government · Natural Resources · Agriculture · Marine · Education · Parks & Open Space
Needles, CA · Education · Client: Big River Elementary School
Designed a 7,000 gpd onsite wastewater treatment system configured for harsh desert conditions and a remote location. The design incorporated recirculating media filtration and a denitrification upflow filter configured in subterranean tanks to handle fluctuating nitrate loading and avoid extreme temperature swings.
Santa Monica, California · Commercial · Client: Natural Resources Defense Council
Designed an advanced graywater and stormwater reuse system for a LEED-Platinum certified office building. The system collects, treats, filters, and disinfects water from sinks, showers, and the roof for reuse in toilet flushing and subsurface landscape irrigation, reducing total water use by over 50 percent.
Santa Monica, California · Government · Client: City of Santa Monica
Conceived and designed a rainwater recycling system that automatically filters, disinfects, stores, and delivers recycled rainwater to flush all toilets and urinals throughout the public library facility.
Los Angeles, California · Parks & Open Space · Client: Audubon Society
Designed an onsite wastewater treatment and reuse system for a LEED-Platinum certified nature center. The system utilizes advanced anaerobic/aerobic treatment, filtration, and advanced oxidation disinfection to treat wastewater for subsurface irrigation.