  We investigate and analyze site specific systematics for the MAGIS-100 atomic
interferometry experiment at Fermi National Accelerator Laboratory. As atom
interferometers move out of the laboratory environment passive and active
mitigation for noise sources must be implemented. To inform the research and
development of the experiment design, we measure ambient temperature, humidity,
and vibrations of the installation site. We find that temperature fluctuations
will necessitate enclosures for critical subsystems and a temperature
controlled laser room for the laser system. We also measure and analyze the
vibration spectrum above and below ground for the installation site. The
seismic vibration effect of gravity gradient noise is also modeled using input
from a low-noise seismometer at multiple locations and a mitigation scheme is
studied using a stochastic simulation and characterized by a suppression
factor.
