Natural Gas & Petroleum Pipelines
Pipelines are an economic way to transport large quantities of petroleum or natural gas over land. Compared to other methods (e.g., railroads), it has lower cost per unit and also higher capacity.
Pipelines use for petroleum are usually made from steel or plastic tubes with an inner diameter from about 10 to 50 inches. Where possible, they are built above the surface. However, in more developed, urban or environmentally sensitive areas they can be buried underground; typically at a depth of about 3 feet.
Multi-product pipelines are used to transport two or more different products in sequence in the same pipeline. Usually in multi-product pipelines there is no physical separation between the different products. Some mixing of adjacent products occurs, producing interface. This interface is removed from the pipeline at receiving facilities and segregated to prevent contamination.
Currently Proposed Pipeline Projects
- Guardian 2 Interstate Natural Gas Pipeline and Laterals
- Environmental Assessment for the Proposed Expansion of the Guardian 2 Interstate Natural Gas Pipeline and Six Lateral Pipelines [PDF 4.62MB].
- Public Notice [PDF 697KB].
- Public Comment Response Summary [PDF 23KB].
- Guardian 2 Permit Cover Letter [PDF 40KB].
- Guardian 2 Permit Text [PDF 90KB].
- Guardian 2 Permit Table [PDF 65KB].
- Guardian 2 Permit Table Notes [PDF 33KB].
- Enbridge Petroleum Pipeline
For more information on DNR´s Office of Energy please contact:
Dave Siebert
(608) 264-6048
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