Watershed Development Guidelines
These Watershed Development Guidelines have been developed to help enhance consistency
and administrative decision-making for the implementation of Lake Simcoe Region
Conservation Authority’s Development, Interference with Wetlands and Alteration to
Shorelines and Watercourses Regulation (Ontario Regulation 179/06) made under the
Conservation Authorities Act.
These Guidelines provide general approaches to the
processing of applications under Ontario Regulation 179/06. They are the operating principles
or the general norm for the implementation of the Regulation.
Download the Watershed Development Guidelines >>
Stormwater Management Guidelines
This document will provide guidance to municipalities, the development
community and their consultants regarding the stormwater management and Erosion/Sediment Control requirements of the Lake Simcoe Region Conservation Authority in
accordance with the Lake Simcoe Protection Plan and Provincial Policy Statement.
Download the Stormwater Management Guidelines >>
Comprehensive Stormwater Management Master Plan
The Lake Simcoe Protection
Plan sets out specific
requirements for the management
of stormwater in existing and
planned settlement areas, through
the preparation of comprehensive
Stormwater Management Master
This document provides direction
to municipalities on how to prepare
and implement CSWM-MPs for
settlement areas located in the Lake
Simcoe watershed, in accordance
with the intent of Policy 4.5-SA of the
Lake Simcoe Protection Plan.
Download the Comprehensive Stormwater Management Master Plan >>
Hydrogeological Assessment Submission
This guidance document has been developed by the Conservation Authorities Geoscience
Group which is made up of Conservation Authority hydrogeologists. The main purpose is to provide information and guidance material to Conservation Authorities, their
municipalities and consultant hydrogeologists related to hydrogeological assessment
requirements that can be used to ensure comprehensive evaluations of potential impacts
associated with development on natural ecological features and functions that are supported by
Download the Hydrogeological Assessments Submission Guidelines >>
Permit Application Hearing Guidelines
The Conservation Authorities Act (Section 28) requires the applicant be party to a hearing
by the local Conservation Authority Board, for an application to be refused or approved
with conditions. Further, where staff are recommending that a permit be revoked under
Ontario Regulation 179/06 a hearing will be held to provide the applicant with the
opportunity to show cause why the permit should not be cancelled.
Download the Permit Application Hearing Guidelines >>
Offsetting Plans and Policies
As new urban growth occurs, phosphorus loads will be controlled to the maximum extent possible. Any remaining stormwater phosphorus that cannot be controlled would require an “offset" to achieve a zero net target.
Download the Phosphorus Offsetting Policy >>
Development proposals and infrastructure projects subject to Planning Act or Environmental
Assessment Act approvals that will result in the loss of wetland and/or woodland natural heritage
features, despite having followed the mitigation hierarchy, will be
required to compensate for the loss of these features.
Download the Ecological Offsetting Policy >>
Water Budget Policy
Recognizing the importance of recharge areas to sustaining a healthy watershed, the Lake
Simcoe Protection Plan includes a number of policies to help identify and protect SGRAs
The approach taken within the LSPP follows three basic steps: 1) define and
identify SGRAs/ESGRAs; 2) develop guidance for their protection and restoration, and 3)
incorporate policies into municipal official plans to protect, improve and restore.
This document will expand on the three points above by developing a Water Budget Offsetting
Policy for those areas where it is demonstrated that the post-development infiltration is unable
to match the pre-development infiltration volume and an infiltration deficit remains in the post development scenario.
Download the Water Balance Offsetting Policy >>
Lake Simcoe Climate Data:
A Reference Document to Support the
Completion of Water Balance
This document aims at providing a standard dataset for land development applicants and their
consultants to use when completing water balance analysis. Qualified Persons should
exercise professional judgment and flexibly to adapt the data provided when considering
specific site conditions and when new information or data becomes available.
Download the Reference for Water Balance Assessments >>