A landfill gas system should work safely and consistently in the background. When the system is properly balanced, it helps control gas movement, reduce emissions, manage odors, and support compliance.
But landfill conditions change over time. Waste settles, moisture builds up, and equipment can wear down. When those changes go unnoticed, the system may not collect or manage gas as effectively as it should.
That is why landfill gas monitoring is an important part of long-term landfill gas management. Regular landfill gas testing helps identify small problems before they turn into larger safety, compliance, odor, or performance concerns.
Why Landfill Gas Monitoring Matters
Landfill gas forms as organic waste breaks down. It is made up mostly of methane and carbon dioxide, with smaller amounts of other gases and volatile organic compounds. If the gas is not collected and managed properly, it can migrate through soil, escape through the landfill surface, create odor issues, or affect nearby structures and utilities.
Monitoring helps confirm that the landfill gas collection system is doing its job. It can also help operators make better decisions about maintenance, repairs, system adjustments, surface emissions, perimeter monitoring, and compliance support.
Landfill gas monitoring may include checking methane levels, oxygen levels, pressure, flow rates, gas quality, surface emissions, wells, piping, blowers, flares, and related equipment. These readings help show whether the system is balanced and whether gas is moving where it should.
Warning Signs Your Landfill Gas System May Need Service
A landfill gas system usually shows warning signs before a major issue develops. Knowing what to watch for can help operators respond before system performance drops.
1. Odors Are Becoming More Noticeable
Recurring or worsening odors may be a sign that landfill gas is not being captured or controlled effectively. Odors can come from poor gas collection, surface emissions, damaged wells, condensate problems, or changing waste conditions.
Landfill gas testing can help identify where the odor issue may be coming from and whether the system needs adjustment or repair.
2. Methane Readings Are Higher Than Expected
Higher methane readings can point to a collection issue, migration concern, or surface emission problem. This is especially important near property boundaries, buildings, utilities, or other sensitive areas.
Methane readings should be reviewed along with oxygen, pressure, vacuum, and flow data to understand what is happening in the system.
3. Pressure or Flow Readings Are Inconsistent
A landfill gas system needs the right balance. If there is not enough vacuum, gas may not be collected effectively. If there is too much vacuum, the system may pull in oxygen and create other performance problems.
Inconsistent readings may be caused by blocked piping, water buildup, damaged connections, landfill settlement, poorly balanced wells, or equipment issues.
4. Wells Are Not Performing as Expected
Gas wells and monitoring wells are key parts of the system. If a well has low flow, unusual gas quality, changing oxygen readings, or signs of water buildup, it may need inspection, cleaning, adjustment, repair, or replacement.
Since each well can affect nearby areas, one poor-performing well may create larger system issues if it is ignored.
5. Condensate Is Affecting Gas Flow
Landfill gas contains moisture. As the gas cools, that moisture can turn into liquid condensate. If condensate is not managed properly, it can restrict piping and reduce gas flow.
This can lead to uneven system performance, pressure changes, equipment strain, and reduced gas collection. Routine monitoring helps catch these issues early.
6. Equipment Alarms or Flare Issues Are Increasing
Frequent alarms, shutdowns, flare interruptions, or blower issues may point to a system problem. Sometimes the issue is mechanical. Other times, equipment is reacting to poor gas quality, moisture, flow restrictions, or changing field conditions.
Professional landfill gas services should look at both the field system and the equipment to find the true cause.
7. Site Conditions Have Changed
Landfills are always changing. Heavy rain, freezing weather, cap work, construction activity, waste movement, and settlement can all affect how gas moves through the site.
Even a system that worked well before may need adjustment after site conditions shift.
When To Schedule Landfill Gas Services
Some issues can be noticed during routine site checks, but many require specialized equipment, field experience, and technical knowledge. If readings are changing, odors are increasing, wells are underperforming, or equipment issues are becoming more common, it may be time to bring in a landfill gas service provider.
Professional landfill gas services may include:
- Gas monitoring
- Field testing
- Well inspection
- System balancing
- Surface emissions evaluation
- Condensate system review
- Equipment inspection
- Operation and maintenance support
The goal is not just to collect data. The goal is to understand what the data means and use it to keep the system operating safely, efficiently, and in line with site requirements.
Schedule Landfill Gas Services With CABENO
CABENO Environmental supports landfill gas collection system operation, monitoring, maintenance, and performance needs throughout Northern Illinois, Northwest Indiana, and Southeastern Wisconsin.
Our team uses practical field experience, advanced tools, updated equipment, and careful planning to help clients identify issues early and keep systems operating effectively.
Whether your site needs routine landfill gas testing, system troubleshooting, well inspection, equipment support, or broader landfill gas management, CABENO provides dependable landfill gas services built around accuracy, efficiency, and hands-on field support.
Call CABENO Environmental at (815) 774-3747 or contact us online to schedule landfill gas services.
Frequently Asked Questions
What is the difference between landfill gas monitoring and landfill gas testing?
Landfill gas monitoring is the ongoing process of checking gas levels, pressure, flow, system performance, and site conditions to confirm that landfill gas is being collected and managed properly. Landfill gas testing refers to specific field measurements, such as methane, oxygen, carbon dioxide, pressure, flow, or surface emissions testing, that help evaluate how the system is performing.
Why is landfill gas management important?
Landfill gas management helps control methane, reduce odor issues, limit gas migration, support compliance, and keep collection systems operating efficiently.
When should a landfill gas system be serviced?
A system may need service when gas readings change, odors increase, wells underperform, equipment alarms become more frequent, condensate affects flow, or site conditions shift after weather, settlement, or construction activity.
