As an international leader in waste management, Tetra Tech has the skill, breadth and depth of resources, and technical talent to help clients manage their waste resources.

Tetra Tech is ranked #1 in Environmental Management and #2 in Solid Waste by Engineering News-Record. Headed by industry-leading experts, our teams provide award-winning waste system planning and permitting, environmental compliance support, facility design, and daily operations support. Our expertise includes leachate management systems, air quality compliance, organics management, and renewable natural gas (RNG) systems.

Through our Waste Management blog, we share our expertise to help clients stay current on technical innovations, regulatory change, best practices, and developments and trends in waste management.

Recent Posts

Tetra Tech engineers evaluating steps to get a client’s site ready for a beneficial-use project

Maximizing LFG Returns: How to Prepare for a Beneficial-Use Project

Tetra Tech’s Solid Waste Solutions experts, Tom Bilgri and David Knapp, collaborated on this piece discussing best practices for landfill owners when developing a beneficial-use facility.

A chiller and bridge and BioCNG™ skid as part of Tetra Tech’s work on the LACSD biogas to fuel project

Wisconsin Takes Proactive Approach to PFAS Regulation

Developing an action plan for PFAS regulation by collaborating with solid waste and wastewater industries and state agencies

A chiller and bridge and BioCNG™ skid as part of Tetra Tech’s work on the LACSD biogas to fuel project

Port of Long Beach Goes Green with Renewable Natural Gas

Converting biogas to vehicle fuel at the Los Angeles County Sanitation District’s Joint Water Pollution Control Plant

Photo of compost bucket ready to be disposed of.

Organics Diversion Opportunity: Are We Wasting It?

Finding common ground on the benefits and drawbacks of banning or limiting organics disposal in favor of diversion through composting or digestion

RNG CNG plant

The West Pushes for Renewal Natural Gas/Compressed Natural Gas—Who Will Be Next?

Getting onboard with CNG and RNG projects

Tetra Tech team members fill car with green fuel.

What Does the Future Hold for Beneficial Use of Landfill Gas?

Using landfill gas as a source for green power

A child receives a vaccine through the DFAT Provincial- and Local-level Governments Program implemented by Tetra Tech.

Mechanically Stabilized Earth Berms Can Be a Great Tool for Increasing Air Space Capacity

Increasing air space capacity with MSE berms

A landfill leachate lake.

Getting a Handle on Landfill Leachate

Providing recommendations on how to alleviate leachate management concerns

Tetra Tech leads innovative marine and coastal management solutions

Why Solar Power Works on Closed Landfills

Advocating for solar power on closed landfills to industry leaders at WASTECON 2019

Tetra Tech employee overlooks MSE berm

Using a Mechanically Stabilized Earth Berm to Expand Existing Landfill Space

Creating more landfill disposal capacity while reducing impacts

An outreach team member is ready to engage residents about food scraps diversion and their new trash collection schedule

Resident Engagement Leads to 70 Percent Diversion Rate in a British Columbia Municipality

Engaging residents about food scraps collection and shifting trash, recycling, and organics collection schedules led to a 36 percent trash reduction

Proper management can help prevent hot landfill facilities

When Temperatures Rise—The Challenges of Hot Landfills

Sharing lessons learned to prevent, detect, and manage hot landfill facilities

Waters of the United States—Where are they flowing these days?

Waters of the United States—Where are they flowing these days?

Detailing the Clean Water Act controversy and predicting the future of clean water regulation

Schaffer Landfill Superfund Site PV Solar Project

Solar Energy Generates Revenue from Closed Landfills

Creating a win-win scenario for closed landfills with solar development for solid waste management facilities

Fly ash reacts with calcium hydroxide in the presence of water to form cementitious compounds

Coal Combustion Residuals—What Should You Consider Before Accepting Them?

Evaluating how the CCR Rule may affect municipal solid waste landfills

Erosion control measures applied on a landfill side slope

Best Practices in Stormwater and Sediment Erosion Control Measures for Landfill Cell Construction

Planning stormwater and sediment erosion control measures to minimize construction delays