Most LDAR methods capture only a snapshot, so they miss when an event starts, when it ends, and how long it lasts. Without that timeline, it can be challenging to quantify released volume, verify repairs, or determine whether the source is constant, intermittent, or tied to specific operations. Qube’s continuous monitoring provides 24/7 data that time-bounds emission events, enabling accurate volume estimates and confident repair verification.

In March 2025, EPA approved Qube continuous monitoring as an alternative technology for periodic inspections under NSPS OOOOb/c ( and applicable to OOOOa). Here we detail how it works. Pick a 7-day window and a 90% PoD threshold. The 7-day block average either passes or fails, and crews conduct site inspections only upon fails. The results are less routine visits, faster repairs, and reduced costs across sites.

A Colorado well pad restarted after a non-routine shut-in. Within hours, Qube’s continuous monitoring flagged methane levels consistent with a large release event (estimated at >100 kg/h, about 125 mscf/d). The operator’s LDAR team located badly leaking level controllers and multiple thief hatches and completed repairs in under 24 hours. The operator then initiated a fleet-wide replacement of aging controllers to prevent recurrence.

At a Colorado wellsite, Qube’s continuous monitoring system alerted operators to a sustained emission event. Qube’s data localized the emissions to the tank area and prompted a field investigation to verify the source of the anomaly. With this information, the team was able to identify the emission source and interrogate the root cause, a blocked vent line leading to the combustor.

In Colorado’s Piceance Basin, a leading operator continues to set the bar for emissions control and operational safety. By integrating Qube Technologies’ continuous methane monitoring system, the operator aimed to strengthen its LDAR program and protect nearby homes located within 1,000 feet of its well pad.

This case study details how real-time alarms and accurate emissions source localization led to rapid action at the wellsite. Notably, catching a high-volume leak at the separator from going unnoticed over the weekend.

Strategic sensor placement is critical for reliable, real-time methane detection. Detection depends not just on technology, but on understanding wind behavior, emission sources, and site constraints. 

Qube’s deployment methodology uses historical wind data, source mapping, and MILP-based optimization to design sensor arrays that maximize detection coverage and minimize false negatives. 

The Qube deployment tool turns this methodology into a practical workflow—helping operators visualize trade-offs, configure sensor layouts, and balance detection accuracy with budget. 

A Colorado operator using Qube’s continuous methane monitoring system received an automated alert about an unexpected emissions spike at a wellhead. Upon investigation, the field team discovered the source: a cow had rubbed against the equipment and opened a manual ball valve, unintentionally releasing gas. The team quickly shut the valve, restored normal readings, and installed fencing to prevent similar incidents. Thanks to Qube’s real-time alerts, the issue was resolved within an hour—without downtime or emissions escalation.

“Another Win for Continuous Monitoring”

-Air Compliance Manager-QB Energy

Missed by AVO, caught by continuous monitoring. When Qube Technologies flagged elevated methane at a QB Energy tank site, field teams were able to locate and fix a leaking thief hatch—achieving a 97% emissions drop in hours. This case study shows how real-time continuous monitoring data and a fast response can keep operations running smooth.

Qube Technologies’ continuous emissions monitoring solutions provide operators with the tools to differentiate offsite from onsite emissions. Furthermore, our data modeling and intuitive dashboard omit those outside emissions from your facility total.

Qube’s platform offers real-time leak detection, efficient alerting, and odor management, enabling RNG operators to maximize revenue, enhance safety, and reduce emissions.