00000nam 2200000zi 4500 9.879464 CaOODSP 20241203113652 m o d f cr bn||||||||| 190919s1984 ykcab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn-yk x8x8 En40-240/84-04E-PDF Godin, Benoit, author. Baseline study of the watershed in the Iona Silver area, Yukon Territory / by Benoit Godin and George Mackenzie-Grieve. [Whitehorse, Yukon Territory] : Environment Canada, Environmental Protection Service, Pacific Region, Yukon Branch, 1984. 1 online resource (vi, 65 pages) : illustrations, maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Regional program report ; 84-04 "April 1984." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 27-29). "A survey of water quality and biological conditions in the streams on the Iona Silver Mine Ltd. Property was carried out in July 1981. The purpose of the study was to obtain baseline data on water, sediment and biological conditions for use as comparison standards when evaluating future mining development in the area. The water and sediment chemistry in the lower reaches of Cache Creek reflect the characteristics of and appear to be influenced by groundwater drainage from mineralized areas. The quality criteria of the water downstream from the mixing zone of Cache Creek on the Ketza River shows no impact on the environment"--Abstract, page i. Issued also in print format. Includes abstracts in English and French. gccst Watercourses gccst Water quality gccst Sediments gccst Aquatic organisms gccst Mining industry Mackenzie-Grieve, George, author. Canada. Environment Canada. Canada. Environmental Protection Service. Pacific Region. Yukon Branch. Regional program report (Canada. Environmental Protection Service. Pacific Region) 84-04. (CaOODSP)9.879151 PDF 2.51 MB https://publications.gc.ca/collections/collection_2019/eccc/en40-240/En40-240-84-04-eng.pdf