Where are the large diameter natural gas pipelines in Arizona?
That was a question we got last night from someone apparently concerned over the gas line rupture and explosion in California.
The map at right is Figure 3 in AZGS Circular #30, "Arizona Has Salt." Interstate pipelines, with diameters of 30-inches are shown by the heavy dark lines, include the two northern El Paso and Transwestern lines through Kingman and Flagstaff and the two southern El Paso lines . The thinner lines are intrastate pipelines. The two crossover lines may be 30 inch also.
The Arizona Corporation Commission Pipeline Safety Division regulates interstate pipelines in Arizona.
[updated 9-15-10, 9:29am with the pipeline ownership]
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