blog icon linkedin icon facebook icon twitter icon

Summary of Texas Eastern’s Current and
Proposed Gas Quality and Interchangeability Limits



 Specification     Texas Eastern's Current Tariff Limit Texas Eastern's Proposed Tariff Limit
Higher Heating Value Min: 967 Btu/scf

Max: None
Min: 967 Btu/scf

Max: 1110 Btu/scf
Wobbe Number Min: None

Max: None 
Min: 1314

Max: 1400
Non-Hydrocarbon Gas (Carbon Dioxide, Nitrogen, and Oxygen) Max: 4.0% Max: 4.0%
Combined Carbon Dioxide and Nitrogen Max: 4.0% Max: 4.0%
Carbon Dioxide Max: 3.0% Max: 2.0%
Combined Nitrogen and Oxygen Max: None Max: 2.75%
Oxygen Max: 0.2%
Max: 0.1%
Sulphur Max: 10 grains per 100 scf Max: 5 grains per 100 scf
Ethanes and Heavier Hydrocarbons ("C2+") Max: None Max: 12.0%
Butanes and Heavier Hydrocarbons ("C4+") Max: None Max: 1.5%
Liquefiable Hydrocarbons Max: None Max: safe harbor of 0.032 gallons per thousand cubic feet (GPM) of hexanes and heavier hydrocarbons (C6+)