00000nam 2200000zi 4500 9.870343 CaOODSP 20241203113647 m o d f cr ||||||||||| 190321s1999 onc #ot f|0| 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-bc En13-5/99-265E-PDF Murphy, Tom, author. Chain Lake restoration by dredging and hypolimnetic withdrawal / by: T. Murphy, R. MacDonald, G. Lawrence, M. Mawhinney. [Burlington, Ontario] : Environment Canada, Water Science and Technology Directorate = Environnement Canada, Direction générale des sciences et de la technologie, eau, [1999?] 1 online resource (22 pages) : figures. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 99-265 Digitized edition from print [produced by Environment and Climate Change Canada]. Title from cover. Reprinted from Aquatic Restoration in Canada, edited by T. Murphy and M. Munawar, pages 195-211. Includes bibliographical references. "This paper reviews the restoration of Chain Lake, British Columbia by a combination of two types of dredging and a bottom withdrawal project. The first phase of the study included the dredging of a hole near the lake outlet. The intent was to use this hole for enhanced nutrient removal either by subsequent dredging or bottom withdrawal. The second phase of the project involved development of innovative dredging equipment to remove organic rich sediments. This aspect was accomplished but land management of dredged sediments became too complex. The final phase, the bottom withdrawal project was successfully completed by collaboration between NWRI, UBC Civil Engineering, local residents and BC governments. The eutrophication of the lake was greatly reduced and the local citizens continue to maintain the bottom withdrawal themselves"--Management perspective. Includes abstract in French. gccst Lakes gccst Water management Macdonald, R. H., author. Mawhinney, Michael R., author. Lawrence, Gregory A‏., author. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; 99-265. (CaOODSP)9.844121 PDF 1.45 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-99-265-eng.pdf