Tetra Tech provides design-build services for new and upgraded onsite wastewater treatment facilities through more than 200 offices nationwide. Our innovative solutions range from advanced individual septic systems for locations where traditional systems are not appropriate to clustered units serving multiple units at new developments. Most importantly, Tetra Tech can design and implement long-term management programs to help new developments meet increasingly stringent requirements for restoring or protecting sensitive receiving waters near sensitive streams, rivers, wetlands, or coastal areas. US EPA's recently released septic system management guidelines will likely be the basis for management programs in the future.
We assist our clients from government and the development community with cutting-edge technology like sequencing batch reactors, recirculating sand/media filters, constructed wetlands, aesthetically pleasing lagoon systems, and other treatment approaches. Tetra Tech provided support to the US EPA's Onsite Wastewater Treatment Systems Manual and the Decentralized Wastewater Systems Management Handbook. We have also helped dozens of cities, counties, and states in developing watershed assessments, pollutant loading models, and storm water management programs. We provide technical services for NPDES permitting, NEPA reviews, and a wide range of other environmental and natural resource management approaches.
Our services are based on a holistic watershed approach to address complex water quality issues across broad geographic areas. We offer customized onsite/decentralized wastewater assessment, planning, and management services to meet the specific needs and regional conditions of our clients. Contact us at barry.tonning@tetratech-ffx.com if you would like to receive more information.
Current and past clients include:
U.S. Environmental Protection Agency
U.S. Fish and Wildlife Service
U.S. Army Corps of Engineers
U.S. Department of Energy
Federal Highway Administration
Delaware Department of Natural Resources and Environmental Control
Georgia Environmental Protection Division
Pennsylvania Department of Environmental Protection
Michigan Department of Environmental Quality
Kentucky Division of Water
Florida Department of Environmental Protection
Mississippi Department of Environmental Quality
New Jersey Department of Environmental Protection
California Department of Water Resources
Rockdale County, Georgia
Clermont County, Ohio
Baltimore County, Maryland
Bucks County, Pennsylvania
Kent County, Michigan
Prince George's County, Maryland
City of Norwalk, Connecticut
City of Wilmington, Delaware
Peconic Estuary Program, New York
Washington Suburban Sanitary Commission
Delaware River Basin Commission
California State University
Grand Valley State University
The Council of State Governments
League of Women Voters
The Nature Conservancy
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