  The Chandra AO1 HETGS observation of the micro-quasar GRS 1915+105 in the low
hard state reveals (1) neutral K absorption edges from Fe, Si, Mg, and S in
cold gas, and (2) highly ionized (Fe XXV and Fe XXVI) absorption attributed to
a hot disk, disk wind, or corona. The neutral edges reveal anomalous Si and Fe
abundances which we attribute to surrounding cold material in/near the
environment of GRS 1915+105. We also point out the exciting possibility for the
first astrophysical detection of XAFS attributed to material in interstellar
grains. We place constraints on the ionization parameter, temperature, and
hydrogen equivalent number density of the absorber near the accretion disk
based on the detection of the H- and He-like Fe absorption. Observed spectral
changes in the ionized lines which track the light curve point to changes in
both the ionizing flux and density of the absorber, supporting the presence of
a flow. Details can be found in Lee et al., 2002, ApJ., 567, 1102
