Methane Testing and Methane Site Evaluation in Los Angeles
Many residential and commercial projects in Los Angeles require methane soil gas testing before a building permit is issued. GeoTed provides LADBS-compliant methane surveys with certified inspections, state board licensing, and full insurance coverage.
Request a Site ReviewWhen Methane Testing Is Required
The Los Angeles Department of Building and Safety (LADBS) requires methane testing for projects in designated methane zones or buffer zones. This includes many areas of the city — particularly near oil fields, landfills, and former industrial sites. Common triggers include:
- New construction or additions in LADBS methane zones
- ADU projects within designated buffer zones
- Commercial or mixed-use development in methane-affected areas
- Projects flagged during plan check for methane investigation
- Properties near active or former oil production areas
What the Survey Includes
GeoTed performs soil gas sampling in accordance with LADBS requirements. The survey documents methane concentrations at the site and determines whether mitigation measures are required. Results are provided in a clear report suitable for plan check submittal.
- Soil gas probe installation and sampling
- Methane concentration measurement
- Site classification per LADBS standards
- Written report for plan check submittal
- Coordination with project team on mitigation requirements if applicable
What to Send GeoTed
Send the property address, the proposed project type (ADU, addition, new construction), and any available plan check comments. GeoTed will confirm whether testing is required and advise on scope and scheduling.
Send Project InformationService Area
GeoTed provides methane soil gas surveys throughout Los Angeles, including the San Fernando Valley, West LA, South Los Angeles, and other LADBS-jurisdiction neighborhoods. GeoTed also serves Ventura County and surrounding Southern California communities.
Frequently Asked Questions
How do I know if my property is in a methane zone?
LADBS maintains methane zone maps available through their website and plan check process. If your property is flagged during plan check, a methane investigation will be noted in the comments. GeoTed can help confirm requirements based on your address.
What happens if methane is detected?
Concentrations above LADBS thresholds require mitigation measures in the building design — typically passive or active ventilation systems. GeoTed's report will classify the site and note what mitigation level is required.
How long does methane testing take?
Field work typically takes a few hours depending on site size and probe locations. GeoTed aims for responsive turnaround to keep your permit process on track.
Is GeoTed licensed for methane testing in Los Angeles?
Yes. GeoTed is state board licensed and fully insured. Inspections are performed in compliance with LADBS requirements and applicable standards.