Radiator fluid leak towards the rear of the engine, water pump?

Hello group, after getting my airbags fixed I thought I was good for a while on this car. Yesterday, I saw big puddle of water doing an errand and poured a gallon of water in the tank to see what the issue was.

I didn't see water leaking from the radiator like I thought it was coming from the rear side under the injectors maybe or the water pump side but I didn't have a flashlight to see.

Wondering if anyone can offer ideas, I have 91k on the motor... Thanks, David

Hi group added another gallon of water to make sure and it's a big hose leak that goes from the battery side of the motor to the heater core but it looks like a bitch to get it off since it's under the injectors damn and good I don't need to do the timing belt but Im sure that's coming soon so not sure if I should go ahead and do the timing belt/waterpump and this or all the hoses or just this one hose.