The Greenwich Fire Department is requesting an emergency appropriation of $98,500 for the removal of potentially dangerous firefighting foam from nine fire engines in the fleet. Funds would also be used to help with cleanup costs related to the foam and a fire that occurred in September. This week, the Board of Estimate and Taxation budget Committee unanimously voted 4-0 to approve the request, according to the voted agenda from Tuesday's meeting. The full BET's next regularly scheduled meeting is on Nov. 21. Documents submitted to the budget committee noted that state mandates require the removal of firefighting foam containing Polyfluoroalkyl Substances (PFAS) from fire stations and fire engines due to their harmful effects on human health and the environment.