LHCFD en route to the 3100 block of N. El Dorado for a report of a propane tank next to the residence making a whistling noise. FD has history at this address involving a propane tank, and is investigating further into that prior incident.
FD placed water on the tank which ended the whistling as it did before. Remaining staged engines have been released from the call. Ferrell Gas has been contacted to address the concern.