00000nam 2200000zi 4500 9.880252 CaOODSP 20241203113652 m o d f cr ||||||||||| 191007e197407##bcca ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-bc En42-1/74-2E-PDF Hallam, R. L., author. A biological assessment of Benson Lake following cessation of deep lake tailings disposal / by R. Hallam, R. Kussat, and M. Jones. Vancouver, B.C. : Environmental Protection Service, Pacific Region, July, 1974. 1 online resource (iv, 16 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier Surveillance report ; EPS 5-PR-74-2 Digitized edition from print [produced by Environment and Climate Change Canada]. "Environmental Protection Service report series." Includes bibliographical references (page 16). "Post mine operation conditions in Benson Lake were documented in November, 1973. Turbidity measurements showed a marked improvement in lake water clarity compared to level recorded when the mine disposed of tailings in the lake. Total metal concentrations in lake water and fish tissue remained unchanged"--Abstract. gccst Water quality gccst Lakes gccst Mining industry gccst Waste Kussat, R. H., author. Jones, M. (Michael) author. Canada. Environment Canada. Canada. Environmental Protection Service. Pacific Region. Environmental Protection Service report series ; EPS-5-PR-74-2. (CaOODSP)9.866031 PDF 657 KB https://publications.gc.ca/collections/collection_2019/eccc/en42-1/En42-1-74-2-eng.pdf