00000nam 2200000zi 4500 9.879485 CaOODSP 20241203113652 m o d f cr bn||||||||| 190919s1983 ykcab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-yk x8x8 En40-240/83-14E-PDF Soroka, I. K., author. Baseline study of the watersheds near the TOM property, MacMillan Pass, Yukon Territory / by I.K. Soroka and M.E. Jack. [Whitehorse, Yukon Territory] : Environment Canada, Environmental Protection Service, Pacific Region, Yukon Branch, 1983. 1 online resource (vi, 73 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Regional program report ; no. 83-14 "July, 1983." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 34-39). "A predevelopment study was undertaken by the Environmental Protection Service in the watersheds near the TOM Property in MacMillan Pass, Yukon in July, 1981. The presence of ore minerals in the study area was reflected by their presence in water and sediment. All streams have soft water with low buffering capacity. With the exception of the South MacMillan River all sampling streams show very low natural pH levels and elevated metal concentrations that make them unsuitable for drinking water and aquatic life. This is probably why the numbers of bottom fauna collected were low. The metals of concern when a mine and mill become active will be arsenic, cadmium, copper, manganese, nickel, silver, lead and zinc"--Abstract, page i. Issued also in print format. Includes abstracts in English and French. gccst Watercourses gccst Water quality gccst Sediments gccst Aquatic animals gccst Mining industry Jack, Mary, author. Canada. Environment Canada. Canada. Environmental Protection Service. Pacific Region. Yukon Branch. Regional program report (Canada. Environmental Protection Service. Pacific Region) no. 83-14. (CaOODSP)9.879151 PDF 2.71 MB https://publications.gc.ca/collections/collection_2019/eccc/en40-240/En40-240-83-14-eng.pdf