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Report: Inventory of Streamflow in the South Coast and West Coast Regions

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This report covers the South Coast and West Coast regions, defined as a provincial Natural Resource Operations region, and presents summary data and datasheets, revised and updated from the original report titled, Streamflow in the Lower Mainland and Vancouver Island, April 2003 by W. Obedkoff, P.Eng., Aquatic Information Branch, Ministry of Sustainable Resource Management. The revision includes updated data beyond 2001 and a new 30-year normal period of 1981-2010.

Author:  Ashfaque Ahmed, P.Eng.

Date Published:  Oct 2017

Report ID:  53344

Audience:  Government and Public

This report is an updated and revised version of the original report titled, Streamflow in the Lower Mainland and Vancouver Island, April 2003 by W. Obedkoff, P.Eng. The analyses presented in this report involve Water Survey of Canada operated hydrometric station data up to and including data for 2013. Most of the parameters were calculated based on data from the 1981-2010 Climate Normal period, with the exception of recurrence interval peak and low flows, which were based on all available data. Except for the design curves, all other analyses from the previous report are presented, including: statistical analysis of peak flows, annual mean flows, and annual and June to September 7-day low flows. In addition, flow duration analyses were carried out for all hydrometric stations using mean daily discharge. The results of these analyses are presented in tabular and graphical format, grouped by hydrologic zone and for each station.

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