Background Report - Town of Georgina

TOWN OF GEORGINA, SUTTON SECONDARY PLAN REVIEW STUDY
BACKGROUND REPORT
To protect the identified significant natural features, the following setbacks / buffers from the Level 1, 2 and 3
Natural Heritage Features, are recommended:
• 15 m from regulatory floodplain , meander belt width or stable top of bank;
• 15 m setback from a warm water stream channel;
• 30 m setback from a cold water stream channel;
• 30 m wetland buffer (both PSW and LSW); and,
• dripline plus 30 m from significant woodlot/wetland vegetation.
In addition to the environmental work already conducted, some follow-up reconnaissance level field inventories
will take place to complete the environmental characterization and fine-tune the opportunities/constraints framework.
The land use concept plans, developed for the Sutton Secondary Plan Review Study Area, will be evaluated
in the context of that opportunities/constraints framework and the Black River Subwatershed Study (State
of the Watershed Report-Black River Subwatershed - Draft LSRCA 2002).
2.3 MUNICIPAL SERVICING AND STORMWATER MANAGEMENT SUMMARY
A summary analysis of current water and sewer servicing allocation and existing servicing infrastructure for the
Sutton Secondary Plan Area was conducted. With respect to water servicing, Sutton is currently allocated an
8,000 persons equivalent from the Willow Beach Water Treatment Plant of which 7,831 persons equivalent have
been assigned, leaving 169 persons unassigned for water treatment. York Region is currently reviewing the timing
for the Water Treatment Plant expansion to determine capacity and will help identify the maximum population
that can be municipally serviced within the Sutton Secondary Plan Area.
In terms of sanitary servicing, the Water Pollution Control Plant was expanded from 4,500 to 7,500 persons capacity
in 2004. Approximately 4,182 persons capacity services in existing development and approximately 3,000
persons equivalent has been allocated to proposed new development. An Environmental Assessment for further
expansion of the Water Pollution Control Plant from 7,500 persons to 16,500 persons was being undertaken
by York Region at the time that SCS Consulting Limited was completing the Current Servicing Allocation Status
Summary, contained in Appendix C. The Provincial regulations have currently imposed a limit to Phosphorus
loading, with respect to Lake Simcoe, of 148kg per year until April 2009. This new regulation affects the number
of persons that can be serviced and thus also affects future population projections that may have been indicated
previously. With respect to this new information, the future population that can be accomodated will be much
lower than 16,500 persons. A more accurate projection number will be determined once the ongoing Provincial
and Regional work has been finalized.
With respect to current stormwater management in Sutton, the majority of sewersheds drain into Black River,
Lake Simcoe and other watercourses without quality or quantity control. Only one sewershed currently has a
stormwater management facility. The Lake Simcoe Region Conservation Authority will require that any new
developments in the Sutton Secondary Plan Study Area follow specific stormwater management criteria with
respect to quality control, quantity control and erosion control.
Further details of the analysis that was conducted by SCS Consulting Limited, prior to the new Provincial regulations,
are provided in Appendix C.
The Planning Partnership • LGL Limited • Poulos & Chung • SCS Consulting • Cushman & Wakefield LePage | July 2008
10