The proposed pipeline corridor would cross the
Ogallala Aquifer for some 250 miles. To help put
this number in perspective, there are currently
15,000 miles of pipelines that already transport
more than 30 billion gallons of oil and hazardous
liquids safely across the Ogallala every year, of
which 21,000 miles cross through Nebraska itself
including almost 3,000 miles of hazardous liquid
pipelines. In addition, oil wells in Nebraska produce
over 6,000 barrels of oil right through the Ogallala
Aquifer every day.
...
Leaks from pipelines are rare and tend to be small. In addition, Keystone
XL Pipeline incorporates proven design features and construction methods,
as well as a state-of-the-art integrity management program. Overall, the
approach helps ensure Keystone XL operates safely in the area of the
Ogallala Aquifer. However, TransCanada also is prepared to respond to
limit any release from the pipeline and to clean-up if a leak were to occur
.
Upon detection of a leak, pumps would be immediately secured from
the Operations Control Center and valves would be closed to isolate the
affected section of pipe and to limit spill volumes. TransCanada personnel
would be mobilized to the spill site immediately to begin emergency
containment and begin clean-up. Additional actions would include the
notification to landowners and appropriate public agencies of potential
groundwater impacts. Even for a spill in the area of a shallow aquifer,
prompt clean-up would limit the ability of crude-oil contaminants to
dissolve in water.