A program to assess environmental impacts of in situ Antrim oil shale processing experiments was carried out. This report covers the second year of an expected four year program. Activities included: monitoring of surface elevations for possible subsidence; monitoring for soil contamination from brines; monitoring surface and subsurface water quality; and monitoring ambient air quality. Assessment was also made of site vegetation, soils, surface disruption caused by drilling activities, and impacts on neighboring residents. Much of this year's effort was directed to monitoring baseline conditions. Consequently, assessment of potential impacts from in situ operations is not yet possible. However, hydrofracturing operations did not appear to affect surface elevations, and the experimental operations, including flaring of combustion product gases, did not degrade ambient air quality beyond permissible concentrations. Negative impacts noted include minor inconvenience to neighboring residents, ad physical disruption of the land surface. A potential ground water quality problem caused by drilling wastes and/or well seepage from previous operations was identified.