Solutions Testing & Analysis Leak Detection and Repair (LDAR) & Fugitive Emissions Management

Leak Detection and Repair (LDAR) & Fugitive Emissions Management

Q: Emissions documentation, data management and reporting

Get emissions data management and reporting support that consolidates program information in one place, enabling faster decision-making and regulator-ready documentation. Integrated emissions management software Site and company level emissions dashboards Full regulatory documentation and reporting support Enhanced leak detection and maintenance repair workflows

Finding and addressing leaks before they become compliance or community concerns

Petrochemical refinery plant with industrial towers and pipelines under a clear blue sky

Oil pumpjack operating in an open field under a blue sky as part of energy production infrastructure.

INTRO

Managing fugitive emissions in complex industrial facilities

Industrial facilities can contain thousands of components that release methane or volatile organic compounds (VOCs). Managing these assets requires a structured program that supports compliance and operational efficiency. Onterris provides LDAR services that help facilities identify, monitor and manage fugitive emissions, including the design and management of leak detection and repair (LDAR) programs aligned with regulatory requirements and site operations. From program setup through monitoring and reporting, we help facilities manage fugitive emissions with confidence.

Supporting Your Industry

Organizations in highly regulated, complex industries rely on our comprehensive air quality testing and analysis expertise to ensure regulatory compliance, operational efficiency and environmental progress.

Chemical

Energy

Manufacturing

Methane

Solid Waste

why it matters

Keeping fugitive emissions controlled across complex assets

Large numbers of valves, connectors, pumps and process components requiring inspection
Increasing regulatory scrutiny around methane and VOC emissions
Reporting complexity slows compliance and decision making
Leaks drive product loss, reputational risks and potential safety hazards

Managing fugitive emissions with comprehensive LDAR and methane monitoring programs

Onterris helps clients design, implement and optimize LDAR and methane monitoring programs that align regulatory requirements with operational realities, delivering accurate emissions data, streamlined compliance workflows and improved environmental performance across facilities.

Leak detection and fugitive emissions programs

We design leak detection and repair (LDAR) programs that align regulatory requirements with facility operations, combining experienced field technicians, advanced detection technologies and structured compliance workflows.

LDAR program design and regulatory readiness reviews
Routine leak inspections using Method 21
Optical gas imaging (OGI), drone and UAV surveys for advanced programs
Alternative fugitive emissions management programs (Alt-FEMP)

Methane monitoring programs

Build methane monitoring programs that support voluntary initiatives and compliance-driven requirements, with permitting, measurement and reporting connected from the beginning.

Full permitting, measurement and reporting support
Measurement and monitoring programs for LNG, wastewater treatment, oil & gas and landfills
OGMP 2.0 implementation and support
Methane intelligence quantification (MIQ) auditing and gap analysis

Maintenance and inventory programs

Strengthen LDAR program execution with maintenance and inventory support that keeps compliance achievable and day-to-day operations efficient through proactive planning and field-ready implementation.

Custom training, inspection and maintenance plans
Emissions inventory solutions
Preventative tank and seal inspections and maintenance
Component inventory development and asset mapping

Emissions documentation, data management and reporting

Industrial energy facility with illuminated processing towers at dusk.

Areas of Expertise

Specialized LDAR expertise for regulatory readiness

Explore our leak detection and fugitive emissions capabilities that support confident regulatory decision making. Don’t see what you’re looking for? Reach out to learn about our full suite of air testing services.

OGI and Method 21 inspections

Advanced leak detection technology

Preventative tank services

LDAR inventory services

OGMP 2.0 implementation support

Alt-FEMP set-up and support

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