Sectors
Access deep environmental expertise tailored to your industry, with solutions built for real-world conditions.
Case Studies
Rebuilding Highway 8 for a Changing River
See how Onterris helped rebuild Highway 8 along the Nicola River with climate-resilient bridge design, hydrotechnical engineering and habitat enhancements.
Flexible Modular Leachate Treatment for Greater Operational Control
Integrated engineering and full-service operations provides an adaptable treatment pathway for changing site conditions and evolving requirements
A Smarter Air Permitting Strategy for a Texas Refinery
Strategic planning creates a more efficient permitting pathway and keeps critical refinery modernization on schedule
Keeping Sydney Metro West Tunnelling On Track With Audit-Backed Environmental Delivery
A multi-site investigation, remediation and validation program aligned with NSW EPA accredited Site Auditor review cycles enables construction teams to progress safely and confirm site suitability
Validating PFAS Destruction for Cleantech Innovator Aquagga
Advanced analytical approach verifies PFAS destruction in complex samples
Accelerating Remote Groundwater PFAS Treatment with Modular Systems
Compact deployment, remote operation and a reliable treatment design supported consistent PFAS treatment across six groundwater sites
Real-Time Benzene Source Detection for Refinery Emissions
Mobile PTR-TOF-MS monitoring helped a refinery pinpoint benzene emission sources in days, accelerate corrective action and strengthen regulatory confidence.
Delivering A PFAS Treatment Solution For Sydney Water
Rapid PFAS treatment deployment enables Australia’s largest water utility to meet drinking water guidelines and build community trust
Restoring A Critical Southwest Rail Corridor Through Decision-Grade Air Monitoring
A coordinated response paired continuous field intelligence with practical execution to guide evacuation decisions, protect crews and support the staged reopening of a critical freight and highway corridor
Building a Scalable Environmental, Health and Safety Operating Model Across a Growing Data Center Portfolio
Environmental health and safety consulting and software delivery stayed tightly aligned, giving the client a clearer path from evaluation to execution
Pioneering Sustainable Energy Transition, Protecting Wildlife: Saint Elmo Vanadium Mining Project
Sustainable mining advanced through integrated approvals, community stewardship and innovative Julia Creek Dunnart research
Strengthening Superfund Data Confidence Through Chemist-Led Validation
Early chemist review proactively elevated data quality by confirming that automated quality control matched the method intent, a step beyond standard practice, adding an extra layer of assurance
Strengthening GHG Reporting for a Growing Midstream Operator
A repeatable, EPA-aligned quality gate routes exceptions to the right owners and benchmarks performance against public industry data
Protecting Drinking Water for Pender County: Turning PFAS Uncertainty Into a Long-Term Plan
Creating a reliable testing and treatment roadmap that supports capital planning for long-term safe drinking water
Decommissioning a Legacy Textile Site With Reliable PFAS Wastewater Treatment
Reliable commissioning and remote support maintained steady treatment performance in complex lagoon water as the site progressed toward closure
Perspectives
Turning Methane Data into Better Operational and Business Decisions
Using defensible methane data to prioritize action, improve performance and demonstrate value
How to Build a Measurement Strategy that Withstands Regulatory Evolution
A framework for chemical manufacturers to assess environmental monitoring technologies based on the decisions they support, risks they reduce and value they create
Rethinking Emissions Monitoring as a Tool for Operational Assurance
Temp CEMS and FTIR: A practical example of how chemical manufacturers can turn emissions data into faster, more informed decisions.
Landfill Gas Is the Ultimate Test of Environmental Maturity
Elevated landfill methane emissions can signal more than a gas problem. Learn how operators can connect methane data with liquids, cover and site operations.
Your Bottling Plant Measures Almost Everything. Why Not CO2 Loss?
Tracking carbon dioxide (CO₂) loss helps plants reduce emissions, prioritize repairs and protect margins
How Ambient Air Monitoring Provides Context and Transparency for Data Centers
Ambient air monitoring helps data center developers establish pre-construction air quality baselines, track changing conditions and contribute to greater environmental transparency throughout the project lifecycle
“Just-in-Time” Compliance: The Hidden Risk Building in Legacy Environmental Programs
Teams in asset-intensive industries now need to recognize indicators of operational risk long before compliance brings them into view
Why the AFFF Transition Is Becoming a Major Engineering and Liability Test
As fluorine-free foam becomes the industry standard, facility operators are finding that the real challenge is not choosing a replacement, but addressing what legacy systems reveal during the transition.
Why Consistent Implementation Is the Real Test of Disaster Recovery Policy
U.S. GAO report demonstrates how inconsistent implementation can undermine disaster recovery programs
Where Environmental Commissioning Creates Value in Digital Infrastructure: Closing the Gap Between Construction and Operations
Critical digital infrastructure has a critical gap
Critical Thinking in Data Validation: How Small Errors Can Have Big Impacts
Critical thinking and professional judgment help uncover small data issues before they become costly project risks
Benzene at the Fenceline: The Public Metric Downstream Operators Can’t Treat Reactively
Why benzene is becoming a clear test of environmental maturity and operational assurance
Solving the PFAS Challenge Starts with a Different Question
The challenge is no longer finding PFAS, it’s proving treatment performance under real-world conditions
California’s Draft Cancer Risk Values Signal a More Demanding Era for Air Risk Management
California’s draft risk values place a new responsibility on industry to understand, measure and defend its local air impacts
Environmental Proof is Becoming a Requirement for Midstream Market Access
As environmental performance influences commercial decision-making, midstream operators need defensible data to drive operational control and business value