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Landfill Gas Analysis

AAC has been providing sampling equipment, media and analytical services for Landfill measurements for over 30 years using mainly EPA Method 25C for Non-Methane Organic Carbon (NMOC), 3C for fixed gases, ASTM D-5504 for Total Reduced Sulfur (TRS), and ASTM D3588 for Heat Value, Compressibility Factor, and Relative Density measurements.

We have worked closely with Landfill operators, testers and regulatory agencies such as the EPA and as a result have gained considerable knowledge of Landfill methods and their field applicability.


We can help you with your Landfill sampling needs from project planning to final data validation including: selecting the proper methods to use, selecting the correct sampling media for the application, calculating the amount of sample to be collected, calculating the required flow rates and sampling time, providing method reporting limits, providing the necessary sampling equipment and instructions, providing the sampling media along with all documentation (Chain of Custody, Sampling Procedures, Sampling Log sheets, etc); and additional supplies such as sampling lines or probes, providing custom spiking gases for field testing and audit purposes, providing analysis following agency or custom methods, and providing you with the final data package including QA/QC reports and when requested Electronic Data Deliverables (EDD).

We can help you with all aspects of Landfill gas analysis including soil gas, near soil, emissions, ambient and indoor air testing.


Our Landfill clients include the EPA as well as several testing companies and involve a variety of Landfill sites.


We can speciate the VOC portion of the Landfill gas using either EPA Method 18 for higher concentrations or EPA Method TO-15 for lower concentrations according to AP-42.

Please see our Analytical Capabilities document for more details of what services we offer and our Downloads page for our two flyers on Landfills.


We have a long history of Research and Development and are experts at developing new methods as well as improving existing ones to meet client’s needs. We are often asked to expand the analyte list of existing methods and are experts at testing and validating additional analytes. We are also able to modify current methods by changing solution chemistries, solution volumes, or sampling protocols to meet specific client needs. We can perform method validation tests including spiking, stability, reproducibility, and gas phase recovery studies.


Please proceed to our Sampling Media and Equipment page to learn about what types of sampling equipment and media we can provide, to our Request Sampling Equipment and Media Form to place an order for sampling equipment and media, to our Request a Price Quote Form to get a price quote for sampling equipment, media and analysis, or to our Contact Us Form for general questions.