Photographic data for the Savannah River Plant (SRP) were reviewed for 1961 through 1987 to determine the value of this photography in estimating the timing and extent of the F- and H-Area seepage basin outcrops along the upper Four Mile Creek floodplain. In excess of 15,000 frames of photography of the SRP were reviewed. The quality of the photography varied widely and included panchromatic (black and white), natural color, and false color infrared. Altitudes of the photography ranged from 2,000 feet above ground level (AGL) to 40,000 feet AGL. For each year the best photography at the lowest altitude was evaluated to determine the presence of vegetation damage downslope of the F- and H-Area seepage basins. Criteria of no visible evidence of vegetation (forest canopy) damage, initial evidence of vegetation or canopy damage, canopy thinning, tree mortality, and expansion of vegtation damage and/or tree mortality zones were applied to each of the photographs. In this initial evaluation, only the largest of the outcrops below the seepage basins were evaluated. (3 tabs.)

The main thrust of the research program was directed at the acquisition, installation and initial operation of the General Ionex Model 1545 charged particle accelerator which will be used in the subsequent reaction cross section measurements. The initial operation of the accelerator has been quite successful, with all of the crucial characteristics meeting or exceeding design specifications. We have made preliminary measurements of the reactions 12C(rho,..gamma..)13N/sup 11/B(rho,..gamma..)/sup 12/C, and D(rho,..gamma..)/sup 3/He as tests of total system integrity and have carried out studies of the interaction of proton and alpha particle beams with deuterated-polyethylene targets. 11 refs.