Can the puddle in the civil air defense garage be in the parking space?

You can't. There are clear regulations on the construction of water storage pits in civil air defense garages. The water storage pit of civil air defense garage is not allowed to be placed in the parking space. The condition of civil air defense water storage pit is: when there is a need for drainage and the drainage facilities are lower than the outdoor drainage pipe network, it is necessary to set up a certain volume of water storage pit to temporarily collect sewage or miscellaneous water to be discharged.