  High spectral and spatial resolution observations of the HCO+ molecule toward
the T Tau binary system obtained with the Owens Valley Millimeter Array reveal
a broad emission line profile (V_LSR = 7.2 km/s, width = 2.0 km/s) upon which a
narrow, redshifted absorption feature (V_LSR = 8.5 km/s, width +/- 0.5 km/s) is
superposed. One possible interpretation of the absorption is that it arises
from infall of molecular cloud envelope material onto the immediate
circumbinary region, which would imply that large scale dynamic accretion
processes are still active well into the optically visible stages of star
formation. Provided the mass is deposited at radii sufficiently close to the
young stars, estimates of the accretion rates indicate that infall may add
enough material to the system to account for the FU~Orionis type flares
recently observed in T~Tau in =< 100 yr.
