Aerial drone view of an EFI covered lagoon biogas site

Inspection Services

Aerial Methane Inspection

See where your site is losing methane, what it is costing you, and what needs attention next. One flight, one clear report.

500+

Covered Systems Installed

82%

US Covered Lagoon Share

32 yrs

Site Experience

Report Sections

How It Works

One Visit, Four Things Checked

EFI flies your covered lagoon or digester, samples the gas, and checks the cover, all in a single visit and with no downtime. Everything comes back in one report you can act on.

Fly

A drone scans the full cover surface with a laser methane sensor and a thermal camera to find and map leaks.

Sample

We pull a spot gas sample from the collection header and read methane, carbon dioxide, oxygen, and hydrogen sulfide.

Measure

We check cover condition, thermal stress points, and seams, and take spot thickness readings where it matters.

Report

You get one clear report and the annotated flight video: what to fix, what it costs, and what to plan for.

Drone inspection over an EFI covered lagoon

The Deliverable

One Report, Three Answers

Not a stack of raw data. A clear report, the way you get a service report when you bring a vehicle in, that tells you what is wrong, what it costs, and what breaks next.

Findings to Fix

Every located methane release, ranked, each tied to a spot on your site with a recommended repair. The invisible leaks at ground level are often the largest from the air.

Value at Risk

The methane leaving your site, translated into lost gas value and environmental load, so every finding has a number next to it and the fix pays for itself.

Outlook

Cover condition and the areas to watch, from thermal stress to spot thickness readings, so a repair stays a planned repair instead of an unplanned shutdown.

See It First

A Sample Report

This is what you receive after a flight: located methane releases with recommended fixes, the value at risk from the gas that is escaping, and an outlook on cover condition, in the clear service-report format above.

The figures are illustrative. Your report carries your site's real readings.

View the sample report

First page of a sample EFI aerial methane inspection report

Who It Is For

Built for the Sites We Know Best

Covered Lagoons

Find lifted seams and fugitive methane on covered anaerobic lagoons before they become a reportable release or a lost-gas problem.

Anaerobic Digesters

Document methane capture and destruction, check cover condition, and confirm your gas is going where it should.

RNG Sites

Every scfm that leaks is gas that never reaches your end use. The inspection puts a number on it and shows you where it goes.

Any EFI Cover

Whether EFI built the cover or not, the inspection adds an annual aerial record of leaks, value, and cover condition.

FAQ

Frequently Asked Questions

An EFI aerial methane inspection locates and maps methane releases across a covered lagoon or digester surface using a drone-mounted laser methane sensor and a thermal camera. On the same visit, EFI pulls a spot gas sample from the collection header to read methane, carbon dioxide, oxygen, and hydrogen sulfide, and checks the cover for thermal stress, seam issues, and thickness at spot locations. The result is a single report that shows where gas is escaping, what it is costing, and which parts of the cover to plan for.

No. The aerial survey is flown while the site operates normally, so there is no downtime. The gas sample and cover checks are done during the same visit without taking the system offline.

The sensor pinpoints and maps methane concentrations as the drone flies a grid, so each release is tied to a real location you can walk to. Leak rates are estimated from the sensor readings and the flight path and are confirmed on site before any repair.

You receive one report with three sections: located methane releases and recommended fixes, the value at risk from the gas that is escaping, and an outlook on cover condition and the areas to watch. The annotated flight video comes with every report.

Owners and operators of covered lagoons, anaerobic digesters, and RNG sites. EFI already designs and installs these covers, so the inspection adds an aerial view of the sites we know best, whether the cover is one EFI built or not.

Explore More

Related Services

Biogas & Digesters

Covered lagoon digester systems

Learn More

O₂ Injection & H₂S Removal

Biological H₂S removal for biogas systems

Learn More

Digester Covers

Gas-tight covers for biogas capture

Learn More

Trusted by industry leaders across agriculture, food processing, government, and renewable energy

Ready to See Your Site From the Air?

Tell us your site and we will schedule the flight and deliver the report and video. Find the problem while it is still a repair, not a shutdown.

Or call us directly: (307) 264-0309

Schedule a Site Inspection

One Visit, Four Things Checked

EFI flies your covered lagoon or digester, samples the gas, and checks the cover, all in a single visit and with no downtime. Everything comes back in one report you can act on.

Fly

A drone scans the full cover surface with a laser methane sensor and a thermal camera to find and map leaks.

Sample

We pull a spot gas sample from the collection header and read methane, carbon dioxide, oxygen, and hydrogen sulfide.

Measure

We check cover condition, thermal stress points, and seams, and take spot thickness readings where it matters.

Report

You get one clear report and the annotated flight video: what to fix, what it costs, and what to plan for.

One Report, Three Answers

Not a stack of raw data. A clear report, the way you get a service report when you bring a vehicle in, that tells you what is wrong, what it costs, and what breaks next.

Findings to Fix

Every located methane release, ranked, each tied to a spot on your site with a recommended repair. The invisible leaks at ground level are often the largest from the air.

Value at Risk

The methane leaving your site, translated into lost gas value and environmental load, so every finding has a number next to it and the fix pays for itself.

Outlook

Cover condition and the areas to watch, from thermal stress to spot thickness readings, so a repair stays a planned repair instead of an unplanned shutdown.

A Sample Report

The figures are illustrative. Your report carries your site's real readings.

View the sample report

Built for the Sites We Know Best

Covered Lagoons

Find lifted seams and fugitive methane on covered anaerobic lagoons before they become a reportable release or a lost-gas problem.

Anaerobic Digesters

Document methane capture and destruction, check cover condition, and confirm your gas is going where it should.

RNG Sites

Every scfm that leaks is gas that never reaches your end use. The inspection puts a number on it and shows you where it goes.

Any EFI Cover

Whether EFI built the cover or not, the inspection adds an annual aerial record of leaks, value, and cover condition.

Frequently Asked Questions

No. The aerial survey is flown while the site operates normally, so there is no downtime. The gas sample and cover checks are done during the same visit without taking the system offline.