Series consists of Alderdice’s records and collected material related to the Kemano Completion Project and his activities as a fisheries biologist. Early material includes research records on total gas pressure and flow analysis research, particularly in regards to the Nechako River, which Alderdice was working on in anticipation of the Nechako River court action. Records regarding the Nechako River court action range from 1984 to 1987, and include correspondence, internal DFO memoranda, and legal documents. Records created by Alderdice after his retirement from DFO in 1987 document his involvement with the British Columbia Utilities Commission Kemano Completion Project Public Review and his connection to the Siddon v. Mair court case. Also includes copies of publications related to Alderdice’s research and activities, such as reprints of journal articles, scientific reports, government publications, and newspaper clippings.