I do not read the map the same way. Nearly all of the Nebraska section is more than 50 feet thick and has multiple liquid petroleum pipelines across it.
The existing pipelines cross through thicker section in Texas and Oklahoma as well.
In addition, can you tell me the concern of the aquifer going deeper while the oil is lighter than water and would float on the top?
The current pipeline runs along the very eastern edge of the aquifer. The biggest problem is the presence of benzene should there be a leak. Here is a peer-reviewed study: http://boldnebraska.org/uploaded/pdf/worst-case-keystone-spill-study-stansburyEmbargoeduntil11amEDTJuly11.pdf
I understand that I’m not going to change your mind and you won’t change mine. What this issue comes down to for Nebraskans is costs vs. risk. For us, we are in favor of the pipeline, but want it to take a different route due to the risks.