South Carolina, high altitude (lol, high is all I know, a few thousand feet) and the growing conditions varied. Some plants were growing in dry ground, some in thick mucky clay with Sphagnum covering it. Every year or two they burn the bog to kill the brush.
The interesting thing about this bog is that it's flowing! The water table is 2 feet under the soil all the time and I believe the it feeds into a lake. Last year i was there there was a pretty big construction plan going on the hill/mountain above the bog and the Nature Conservancy was going to attempt to buy a few acres from the developer directly above it to try to act as a filter for the silt and soil that would inevitable flow downhill and smother the Sarracenia.
I appreciate the sensitivity about not disclosing site names or locations. Well done.
But...uh...there is no known S. oreophila in South Carolina. There is one site in North Carolina, one in Georgia, and all the remaining +-20 sites are in Alabama (unless the famed mystery site in Tennessee can be found).
The only Federally Endangered Sarracenia in South Carolina is S. jonesii, although the very rare S. purpurea var. montana also occurs at one South Carolina site.