What is the fine-grained topic of the following text: "The Campaign for Accountability obtained emails in late November that showed Mitch Gillespie, who until recently worked as a senior policy adviser on environmental matters for Moore, had sought a status report from state environmental officials on how they were handling the removal of two underground tanks at the Siler City property. Only return the topic.
Mitch Gillespie's inquiry about underground tank removal at the Siler City property