00000nam 2200000za 4500 9.862622 CaOODSP 20241203113644 cr ||||||||||| 181002s1976 bccabd #ob f000 0 eng d 0-662-00460-4 CaOODSP eng eng fre n-cn-bc En36-503/95E-PDF En36-503/95 Oguss, E. Limitations of single water samples in representing mean water quality [electronic resource] : I. Thompson River at Shaw Spring, British Columbia / E. Oguss and W.E. Erlebach. Vancouver, British Columbia : Environment Canada, Inland Waters Directorate, Pacific and Yukon Region, Water Quality Branch, 1976. v, 22 p. : ill., maps, graphs Technical bulletin - Inland Waters Directorate ; no. 95 Contract No. 07KXKL210-6-4526. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "This study was undertaken to determine the degree to which infrequent single grab samples are representative of the monthly or quarterly mean water quality of the Thompson River in the vicinity of the station at Spences Bridge. It contributes to a continuing evaluation of the overall effectiveness of routine water quality monitoring performed by the Inland Waters Directorate in British Columbia. The study was designed to determine the magnitude of spatial and temporal variability in the concentrations of the following parameters: total phosphorus, nitrate plus nitrite, iron, fluoride, lead, zinc, silica and pH. These parameters were selected because they had shown marked variation in previous quarterly sampling"--Abstract, p. v. Includes abstract in French. gccst Water quality gccst Water management gccst Assessment Erlebach, W. E. Canada. Environment Canada. Canada. Inland Waters Directorate. Pacific and Yukon Region. Water Quality Branch. Technical bulletin (Canada. Inland Waters Directorate) no. 95. (CaOODSP)9.861123 PDF 1.03 MB https://publications.gc.ca/collections/collection_2018/eccc/en36-503/En36-503-95-eng.pdf