02018cam 2200397zi 45009.879813CaOODSP20221107165621m o d f cr bn|||||||||190926e198111##bcca ob f000 0 eng dCaOODSPengrdaCaOODSPengengfren-cn-bcEn40-240/82-5E-PDFDerksen, George, 1948- author.The effects of a sewage lagoon effluent on the water quality of the Cowichan River during the 1980 low flow period plus an evaluation of the lagoon's bacteriological reduction performance and effluent toxicity / by G. Derksen.[West Vancouver, B.C.] : Environmental Protection Service, Environmental Protection Branch, Pacific Region, November 1981.1 online resource (xii, 83 pages) : illustrations (some colour).texttxtrdacontentcomputercrdamediaonline resourcecrrdacarrierRegional program report ; no. 82-5Cover title.Digitized edition from print [produced by Environment and Climate Change Canada].Includes bibliographical references."The water quality of the Cowichan River was monitored over the summer low flow period of 1979 and 1980. During August and September, 1980 the impact of the Duncan-North Cowichan sewage discharge was monitored"--Abstract, page i.Includes abstracts in English and French.gccstWaste watergccstRiversgccstWater qualityCanada. Environment Canada.Canada. Environmental Protection Service. Pacific Region.Regional program report (Canada. Environmental Protection Service. Pacific Region)no. 82-5.(CaOODSP)9.879151PDF4.98 MBhttps://publications.gc.ca/collections/collection_2019/eccc/en40-240/En40-240-82-5-eng.pdf