requirements by fire department are killing me- help

[John Chapman]

I am developing a duplex off of a narrow street. The duplex will be set back about 150' from the street and is serviced by a 20' wide alley. The fire chief is requiring me to put in sprinklers in my duplex because he says his fire truck can't make the turn into the alley/fire lane. But he also says he needs room for his truck to turn around and he wants us to install a fire hydrant for the truck to hookup to. Why should I need add a hydrant if he says the truck can't make it in the alley? Why do I need both a fire hydrant and sprinklers in the duplex. What recourse do I have if I want to appeal his decision? I'm prepared to discuss with his boss and the City Supervisor. Can I sue him for being over burdensome on his requirements?