Series consists of materials created and accumulate by Ecoplans Ltd., a company formed by Dorney in 1970. Dorney was president until 1979 and then Chairman of the Board. Major projects of Ecoplans included urban forestry, water quality and environmental design as well as numerous highway and pipeline projects for the Province of Ontario. Approximately 100 plans were completed between 1970 and 1987 in which Dorney was able to "explore and demonstrate how environmentally science can be the basis of rational, less costly and pleasing development." Series contains publications and drafts of plans and projects undertaken by Ecoplans as well as some working and personal materials.