Ladera Ranch CA Built on Top of 2 Abandoned Oil and Gas Wells One is Right Under Poets Park and The Other One is Under Citrus Lane , Possible Cause of Ewing Sarcoma Cancer Cluster.  Since 2007, around nine children living in the upscale Ladera Ranch area have been diagnosed with Ewing sarcoma, a rare cancer tumor of the tissues.  A 2026 study published on Springer Link noted a statistical association between children living near abandoned oil and gas wells and an increased risk of Ewing sarcoma.  Parents in a wealthy California community say newly released state cancer figures have only fueled fears that years of pesticide spraying could be linked to a cluster of rare childhood cancers. Families in Orange County’s Ladera Ranch have spent months pushing officials to investigate whether environmental factors played a role in an alarming number of Ewing sarcoma diagnoses among local children. The data does not include several diagnoses reported after 2021, including ...