You should check that it's not coming from the wiper arm seals leaking. Yes the garden hose will work on this also. I take it that your floor boards are not rotted?
Floor boards not rotted, surface rust up front. I'll pull the carpets tomorrow and lay the paper down, the fluid is too dirty from the carpet & insulation to get a good description of color. dont see any leaks from the firewall, see a little moisture on the black caulking forward of the kick panel on the driver's side which is now an area of interest. I'm wondering if this is residual from the insulation released by the pressure of my feet as I drive. All speculative at this point, the carpet & insulation & sound deadener must come out & then I can try to isolate.