Description: Each feature in the Waterflow layer contains a “REGULATE” field value indicating the status of the features.REGULATE = 1: ‘Regulated Watercourses’ identify surface and subsurface water features that are regulated by Conservation Halton under Ont. Reg. 162/06.REGULATE = 0: ‘Hydrologic Linkages’ identify creek features that may/may not be considered fish habitat (direct or indirect) as defined by the Fisheries Act. Conservation Halton does not regulate these linkages under Ont. Reg. 162/06.
Description: Each feature in the Waterflow layer contains a “REGULATE” field value indicating the status of the features.REGULATE = 1: ‘Regulated Watercourses’ identify surface and subsurface water features that are regulated by Conservation Halton under Ont. Reg. 162/06.REGULATE = 0: ‘Hydrologic Linkages’ identify creek features that may/may not be considered fish habitat (direct or indirect) as defined by the Fisheries Act. Conservation Halton does not regulate these linkages under Ont. Reg. 162/06.
Description: The meander belt hazard is based on measured bank full width (BFW) multiplied by a standardized factor of x10 either side of the bank edge (BFWx10). Where a bank full measurement cannot be determined through air photo interpretation, a default width of 1.5m (0.75m to either side of the creek centre line) will used in the analysis. The meander belt is represented as a standard buffer of the creek feature and should not be considered equivalent to an engineering meander belt assessment. Where there is overlap of the meander belt hazard with the stable top of bank hazard, the stable top of bank takes precedence. The meander belt width may be modified through internal review by Conservation Halton staff or the inclusion of site-specific fluvial geomorphological assessments. Piped Systems – Where a watercourse is piped within a municipal road right-of-way, the meander belt width is adjusted as necessary so that the meander belt width plus allowance will be contained within the limits of the right-of-way.
Description: Contains regulated valley features. This hazard includes the valley feature plus an assessment on the long-term stable slope. Where the toe of the valley slope is subject to erosion risk the top of the valley feature is extended outwards until a stable top of bank (STOB) is achieved. The hazard includes this modelled stable top of bank area for valley features over 2m in height. Where this hazard overlaps the meander belt hazard, the meander belt is removed.
Description: This layer contains the Shoreline Component as per Ontario Regulation 162/06. Regulation of the Shoreline of Lake Ontario will include: areas susceptible to Shoreline flooding to the 100 year flood level including wind setup and wave up-rush, areas susceptible to shoreline erosion, and dynamic beach processes. The limits of the hazards will be based on analysis of digital elevation mapping with respect to lake levels, slope stability and 100-year erosion limits. The estimated location of the Lake Ontario Shoreline in the Halton Region during a 100 Year Storm / flooding event has been estimated from the 76 mASL contour line. The 76 mASL 100-year flood level is determined from 1985 IGLD Instantaneous Water Level. An "Allowance" of 5m will be added to the estimated hazard limits to define the regulation limit. Site-specific analysis maybe required.