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Calcium carbonate application at Puslinch Lake (Cambridge, Ontario) for phosphorus control: Theory versus practice

Show simple item record Vandermeulen, H. Gemza, A.
dc.coverage.spatial Puslinch Lake
dc.coverage.spatial Cambridge
dc.coverage.spatial Ontario 2019-03-14T17:50:38Z 2019-03-14T17:50:38Z 1992 1992-03
dc.description.abstract A summary and history of data collected at Puslinch Lake (near Cambridge, Ontario) are provided. Information pertaining to bacterial densities, phosphorus loading, hydrology, sediment chemistry, macrophytes, fish, plankton and water chemistry are summarized. The lake is a shallow, wind mixed, eutrophic, hard water system suffering from excessive phytoplankton blooms (over 70 ?g/L chlorophyll a) with Cyanophycean genera (Aphanothece, Chroococcus, Lyngbya and Oscillatoria) dominating in summer and fall. Zooplankton densities are relatively low with cyclopoid copepods and non-daphnid cladocerans predominating. Fish populations are poorly developed. Macrophytes can cover extensive portions of the lake with Potamogeton crispus dominating in the spring and Chara dominating during the remainder of the season. Beach closures due to high bacterial counts are common. Residents were surveyed regarding their opinions on lake water quality, recreational opportunities and lake rehabilitation. In September, 1988, 76.4 tonnes of calcium carbonate powder were applied in water slurry form over the surface of the lake in an attempt to precipitate phosphorus and improve water quality. The experiment was unsuccessful in improving water quality. Future rehabilitation of Puslinch Lake should include a program of phosphorus loading controls and partial or complete removal of flocculent, nutrient rich surficial sediments.
dc.format pdf
dc.language.iso en
dc.publisher Ontario Ministry of the Environment
dc.rights Queen's Printer for Ontario, Crown Copyright, Non-Commercial Use Permitted
dc.subject bacterial densities
dc.subject phosphorus loading
dc.subject hydrology
dc.subject sediment chemistry
dc.subject macrophytes
dc.subject fish
dc.subject plankton
dc.subject water chemistry
dc.subject sediment
dc.subject lake turnover
dc.subject lake rehabilitation
dc.title Calcium carbonate application at Puslinch Lake (Cambridge, Ontario) for phosphorus control: Theory versus practice
dc.type Report
dc.rights.holder Queen's Printer for Ontario
dc.contributor.affiliation Water Resources Branch, Ontario Ministry of the Environment
dc.rights.license All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.

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