This issue with sewer pipes is the latest development in a decade-long saga for Carousel tract residents. Developers of the 285-home community, which borders Wilmington, secretly buried remains of a former Shell Oil tank farm a few feet beneath the homes in the 1960s. The burial was kept secret until routine testing discovered soil pollution in 2008.
This website and sisters royaldutchshellgroup.com, shellnazihistory.com, royaldutchshell.website, johndonovan.website, and shellnews.net, are owned by John Donovan. There is also a Wikipedia segment.