00000nam 2200000zi 4500 9.889524 CaOODSP 20221107172318 m o d f cr mn||||||||| 200717s1986 bccab ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-bc x7x8 En40-906/1986E-PDF Derksen, George, 1948- author. Impact of Duncan-North Cowichan sewage discharge on the Cowichan River during 1985 low flow period / by George Derksen. [West Vancouver, B.C.] : Department of the Environment, Environmental Protection Service, Pacific and Yukon Region, 1986. 1 online resource (iii, 41 pages) : colour illustrations, map text txt rdacontent computer c rdamedia online resource cr rdacarrier "File report." "February 1986." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 25). Issued also in print format. Sewage disposal in rivers, lakes, etc. Environmental aspects British Columbia Cowichan River. Eaux usées Évacuation dans les cours d'eau, lacs, etc. Aspect de l'environnement Colombie-Britannique Cowichan, Fleuve. Canada. Environmental Protection Service. Pacific and Yukon Region, issuing body. PDF 11.44 MB https://publications.gc.ca/collections/collection_2020/eccc/en40/En40-906-1986-eng.pdf