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Lake Simcoe Region Conservation Authority

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Reports, Plans & Studies

The LSRCA undertakes or is involved in studies of both the region's subwatershed​ and the Lake Simcoe watershed as a whole. Studies may involve assembling data, creating computer simulations of the impacts of land use on water quality, documenting the state of the subwatersheds, and recommending courses of action.

Follow the links below to learn more about the Lake Simcoe Region Conservation Authority's Reports, Plans and Studies for the Lake Simcoe watershed.

Conservation Area Management

Beaver River Wetland Conservation Area Management Plan

Beaver River Wetland Conservation Area is a 393 ha (971 ac) conservation area situated along the Beaver River in Brock and Scugog Townships in the Regional Municipality of Durham. LSRCA has been acquiring this conservation area since 1994, with the support of the Nature Conservancy of Canada, Ontario Heritage Trust, the Regional Municipality of Durham, the Ministry of Natural Resources, Ducks Unlimited Canada, and a number of private donations.

Beaver River Wetlands Conservation Area Management Plan (Published: 2010)

Rogers Reservoir Conservation Area Management Plan

Rogers Reservoir Conservation Area is a 68 hectare (168 acre) conservation area in the Town of East Gwillimbury, York Region. The property is situated along the banks of the East Holland River and consists of a mix of deciduous forest, pine plantation, wetland and meadow habitats. The most significant built feature of the conservation area is a two kilometre section of the Nokiidaa Trail, which connects the Towns of Aurora, Newmarket and East Gwillimbury along the East Holland River.

Rogers Reservoir Conservation Area Management Plan (Published: 2013)

Scanlon Creek Conservation Area Management Plan

Scanlon Creek Conservation Area is an approximately 300 ha property in the municipalities of Bradford West Gwillimbury and East Gwillimbury, in the West Holland River watershed. Much of the property is relatively inaccessible wetland habitat and public use tends to be restricted to the main tract, accessible from Line 9 of Bradford West Gwillimbury.

Scanlon Creek Conservation Area Management Plan (Published: 2015)

Sheppard's Bush Conservation Area Management Plan

Sheppard’s Bush Conservation Area is a 26.1 ha (64.6 ac) property in Aurora, owned by the Ontario Heritage Trust and managed under a legal Agreement by the Lake Simcoe Region Conservation Authority. This Agreement was originally signed in 1971, and renewed again in 1996 for the period through 2021. The Town of Aurora, in turn, has an Agreement with LSRCA to provide and maintain an eight hectare soccer pitch within the conservation area, as well as to provide other maintenance to the property.

Sheppard's Bush Conservation Area Management Plan (Published: 2009)

Uxbridge Country Preserve Management Plan

The Uxbridge Countryside Preserve, located in the heart of Uxbridge, was opened for public use in 2005.  The preserve covers approximately 40 hectares of rolling landscape on the Oak Ridges Moraine.  With its central location, extensive network of trails and space for activities year-round, the Uxbridge Countryside Preserve is a favourite destination for outdoor enthusiasts.

Uxbridge Country Preserve Management Plan (Published: 2009)

Groundwater Studies

Ecologically Significant Groundwater Recharge Area Assessment
Maskinonge, East Holland and West Holland River Subwatersheds

Ecologically Significant Groundwater Recharge Areas (ESGRA) are identified areas of land that are responsible for replenishing groundwater systems, and those that support sensitive areas like coldwater streams and significant wetlands. Landscape recharge areas or Significant Groundwater Recharge Areas have been previously characterized during the Source Protection Program and the ESGRA assessment process to determine which recharge areas support ecological features within the watershed.



 

Significant Groundwater Recharge Areas

Recharge areas are areas of land over which precipitation infiltrates into the ground and flows to a groundwater aquifer. These areas are considered significant when they help to maintain the water level in an aquifer that supplies drinking water, or supplies groundwater to a cold water ecosystem that is dependent on this recharge to maintain its ecological function. Recognizing the importance of these areas to sustaining a healthy watershed, the Lake Simcoe Protection Plan includes a number of policies to help identify and protect significant groundwater recharge areas. Under these policies, significant groundwater recharge areas throughout the Lake Simcoe watershed have been identified.

This document, prepared in collaboration with the Ministry of Natural Resources, Ministry of the Environment, and watershed municipalities, aims to assist municipalities in protecting and restoring these important areas.

Significant Groundwater Recharge Areas (SGRA) Guidance Document


Tier 2 Water Budget and Ecologically Significant Groundwater Recharge Areas (ESGRA) Studies

The Lake Simcoe Protection Plan (LSPP) requires Tier 2 Water Budget Studies to be completed for all subwatersheds within the Lake Simcoe Basin that were not previously completed through Source Water Protection initiatives.

This requirement is part of an initiative to monitor progress in achieving the water quantity-related objectives of the Lake Simcoe Protection Plan; namely, to support the maintenance of adequate flows to maintain healthy aquatic ecosystems in the Lake Simcoe watershed. In addition, the LSPP aims to identify and protect primary Ecologically Significant Groundwater Recharge Areas (ESGRAs) that sustain discharge to important surface water features within subwatersheds such as streams and wetlands.

Ecologically Significant Groundwater Recharge Areas (ESGRAs) are identified as areas of land that are responsible for supporting groundwater systems that sustain sensitive features like coldwater streams and wetlands. To establish the ecological significance of the recharge area, a linkage must be present between the recharge area and the Ecologically Sensitive Feature (e.g. a reach of a coldwater stream, a wetland, or an Area of Natural or Scientific Interest (ANSI)).

The identification of an ESGRA is not related to the volume of recharge that may be occurring, rather they represent pathways in which recharge, if it occurred, would reach that feature. While delineating ESGRAs is an important task in establishing the linkage between a recharge area and an Ecologically Sensitive Feature it is not a certainty that ESGRAs will coincide with SGRAs, as they may not support high volumes of recharge. While ESGRAs and SGRAs are not mutually exclusive, the areas where they do coincide support high volumes of recharge and Ecologically Sensitive Features".

An initial study carried out by Earthfx Inc. (2012) provided an outline for the methodology to be carried out for this and subsequent ESGRA studies.

Barrie, Lovers, and Hewitt Creeks – ESGRA Assessment and Sensitivity Analysis

Black River & Georgina Creeks Subwatershed Tier 2 & ESGRA Assessment

Innisfil Creeks Subwatershed Tier 2 & ESGRA Assessment

Oro North, Oro South, and Hawkestone Creeks Subwatershed Tier 2 Water Budget Analysis and Water Quantity Stress Assessment

Oro North, Oro South, and Hawkestone Creeks Subwatershed Ecologically Significant Groundwater Recharge Areas Assessment

Ramara Creeks, Whites Creek and Talbot River Subwatersheds Tier 2 Water Budget, Climate Change and Ecologically Significant Groundwater Recharge Area Assessment



Subwatershed Plans

Barrie Creeks, Lovers Creek and Hewitt's Creek Subwatershed Plan

This subwatershed plan looks at the Barrie Creeks, Lovers Creek, and Hewitt's Creek subwatersheds, located in the west-central portion of the Lake Simcoe watershed around the tip of Kempenfelt Bay. These subwatersheds fall mainly within the City of Barrie and Town of Innisfil, with very small portions found in the Townships of Oro-Medonte and Springwater.

Barrie Creeks, Lovers Creek, and Hewitt's Creek Subwatershed Plan (Published: 2012)

Implementation Plan: 2013-2017 (Published 2012)


Beaver River Subwatershed Plan

The Beaver River is the Lake Simcoe watershed's easternmost subwatershed. The subwatershed is 327.3 km2 in area, with 85.1% of its area within Durham Region and the remaining 14.9% within the City of Kawartha Lakes. The subwatershed includes the Townships of Brock, Scugog, and Uxbridge and the communities of Beaverton, Cannington, Sunderland, Blackwater, Lorneville, Woodville, and Derryville.

Beaver River Subwatershed Plan (Published 2012)


Black River Subwatershed

The Black River subwatershed occupies 375 square kilometres of land south of the eastern portion of Lake Simcoe. With the headwaters originating on the Oak Ridges Moraine, the Black's watercourses flow mainly through natural features and agricultural areas throughout much of the system before reaching the community of Sutton and the outlet into Lake Simcoe.

Black River Subwatershed Plan (Published 2010)


Canal and Mitchell Lakes, Talbot River and Whites Creek Subwatershed Plan

This subwatershed plan looks at the lakes, rivers and tributaries that make up the Canal and Mitchell Lakes, Talbot River, and Whites Creek subwatersheds, located in the northeast of the Lake Simcoe watershed. The subwatersheds fall within the upper tier municipalities of Simcoe County, Durham Region, and the City of Kawartha Lakes, as well as the lower tier municipalities of the Township of Ramara and the Township of Brock. The Whites Creek and Talbot River subwatersheds are 10,540 ha and 36,908 ha in area, respectively. Canal and Mitchell Lakes are located completely within the Talbot River subwatershed and measure 846 ha and 275 ha in area, respectively.



East Holland River Subwatershed Plan

The Holland River is located in the southwest corner of the Lake Simcoe watershed. It is composed of two major tributaries, the East Holland and the Holland/Schomberg. The East Holland River is the smaller of the two, draining approximately 243 square kilometres, or 41%, of the total subwatershed.

East Holland River Subwatershed Plan (Published 2010)

York Region Subwatershed Implementation Plan: 2013 - 2017 (Published 2013)

State of the Watershed Report - East Holland River Subwatershed (Published 2000)

East Holland River Subwatershed Management Plan (Published 2000)


Georgina, Fox and Snake Islands Subwatershed Plan

This subwatershed plan studies the three islands and mainland area that make up the Georgina, Fox and Snake Islands subwatershed, located in the southern portion of Lake Simcoe. The subwatershed is owned by the Chippewas of Georgina Island First Nation and falls within the Regional municipality of York. The total subwatershed area is 1.4 km2, comprising 0.5% of the Lake Simcoe watershed.

Georgina, Fox and Snake Islands Subwatershed Plan (Published 2017)


Innisfil Creeks Subwatershed Plan

This subwatershed plan looks at the tributaries that make up the area known as the Innisfil Creeks subwatershed, which drain into the western side of Lake Simcoe, including Cook's and Kempenfelt Bays. Almost all of the subwatershed area falls within the Town of Innisfil, with 3% falling within the City of Barrie and 1% in the Town of Bradford West Gwillimbury. The subwatershed is 107 km2 in area, and consists of 17 named streams, most of which have their headwaters in agricultural areas, and then flow downstream, some through urban areas, before entering the lake.

Innisfil Creeks Subwatershed Plan (Published: 2012)

Implementation Plan: 2013-2017 (Published 2012)


Maskinonge River Subwatershed Plan

The Maskinonge River subwatershed is located in the south-central portion of the larger Lake Simcoe watershed. It has a drainage area of approximately 60 square kilometres, a little more than two percent of the entire Lake Simcoe watershed. Since the mid-1980s, the Maskinonge River has been plagued by the excessive growth of algae and aquatic plants, most noticeably duckweed.

Maskinonge River Subwatershed Plan (Published 2010)

York Region Subwatershed Implementation Plan: 2013 - 2017 (Published 2013)

Maskinonge River Remedial Strategy (Published 1998)


Musselman's Lake Subwatershed

The purpose of the Musselman's Lake Subwatershed Assessment and Stewardship Opportunities Report (Stewardship Opportunities Report) is to describe the environmental issues facing Musselman's Lake and its subwatershed and put forward recommendations to remedy or control these environmental issues. The final draft of the Musselman's Lake Subwatershed Assessment and Stewardship Opportunities Report was presented to the Town of Whitchurch-Stouffville Council on April 7th, 2009. - See more at: http://www.lsrca.on.ca/reports/subwatershed-plans.php#sthash.MTVXSA1W.dpuf

Musselman's Lake Subwatershed Assessment & Stewardship Opportunities Report (Published: 2009)


Oro & Hawkestone Creeks Subwatershed Plan

This subwatershed plan looks at three separate, but fairly similar, subwatersheds lying in the northwest portion of the Lake Simcoe watershed, with their headwaters originating on the Oro Moraine: Oro Creeks North (75 km2 within the Township of Oro-Medonte, with just over 20% falling within the City of Orillia), Hawkestone Creek (48 km2 entirely within the Township of Oro-Medonte), and Oro Creeks South (57 km2 also fully within the Township of Oro-Medonte). This subwatershed plan was prepared under the direction of the Lake Simcoe Protection Plan (LSPP).

Oro & Hawkestone Creeks Subwatershed Plan (Published 2013)

Implementation Plan: 2014 - 2018 (Published 2013)


Pefferlaw River Subwatershed Plan

The Pefferlaw River subwatershed is approximately 425 km2 in area, located on the eastern side of the Lake Simcoe watershed. It lies almost entirely within the Regional Municipality of Durham, with a small portion in York Region. It includes the Townships of Brock, Scugog, Uxbridge, and Georgina, and the communities of Pefferlaw, Udora, Sandford, and Siloam.

Pefferlaw River Subwatershed Plan (Published 2012)


Ramara Creeks Subwatershed Plan

This subwatershed plan looks at the tributaries that make up the Ramara Creeks subwatershed, located in the northeast of the Lake Simcoe watershed. The subwatershed falls entirely within the Township of Ramara, and includes the communities of Brechin, Bayshore Village, and the unique canal community of Lagoon City. It is 137 km2 in size, and consists of a number of tributaries, many of which are primarily municipal drains flowing through agricultural areas. These include the Donnelly, Gettings, McNabb, Harrington, Murray, O’Connell, and Ross Drains, as well as a natural watercourse called Wainman’s Creek.

Ramara Creeks Subwatershed Plan (Published 2015)

Implementation Plan: 2015 - 2020 (Published 2015)


Subwatershed Plans Implementation Report

To meet the recommendations of the Lake Simcoe Protection Plan (LSPP), the Lake Simcoe Region Conservation Authority (LSRCA) and its partners have been developing subwatershed plans to focus protection and restoration efforts in Lake Simcoe's subwatersheds. After the plans are completed, LSRCA continues to work with municipal and provincial partners to implement the plans' recommendations.

This report summarizes progress made in 2016 on achieving subwatershed plan recommendations.

Lake Simcoe Subwatershed Plans Implementation Report (Published 2016)


 

Uxbridge Brook Watershed

The watershed planning process uses drainage boundaries and embraces an ecosystem approach, which recognizes that "everything is connected to everything else." In recognition of the need for carefully managed growth to protect the area's natural resources, the Uxbridge Brook Watershed Plan identifies resources, management issues, and recommends development constraints and best management practices for the watershed.

Uxbridge Brook Watershed Plan (Published 1997)


West Holland River Subwatershed Plan

The West Holland River subwatershed occupies 354 square kilometres of land immediately to the southwest of the tip of Lake Simcoe's Cook's Bay. Originating on the Oak Ridges Moraine, the headwaters of the subwatershed flow through mainly forested and agricultural areas before entering the Holland Marsh. The system then flows past the Town of Bradford, and then past forested and agricultural areas before discharging into Lake Simcoe.

West Holland River Subwatershed Plan (Published 2010)

York Region Subwatershed Implementation Plan: 2013 - 2017 (Published 2013)


Technical Reports & Studies

Aquatic Macrophyte Survey of Cook's Bay

An inventory of the aquatic plants of Cook's Bay was conducted in August of 2006, to contrast data collected in 1984 and 1987 and to provide a baseline against future change. Macrophyte growths are dense enough to have had significant effects on water quality, and management options are limited to manual harvesting, nutrient reduction, biological control, and chemical treatment. Although manual harvesting along the eastern shoreline is ongoing, the bay is too large to implement a large-scale harvesting operation, and nutrient inputs have and will continue to be minimized. Biological and chemical control options are not feasible on such a large scale.

Aquatic Macrophyte Survey of Cook's Bay
(Published: 2007)


Aquatic Plants in Lake Simcoe: Distribution, Environmental Controls and Utility as Ecological Indicators

In 2008, LSRCA investigated the aquatic plants in Lake Simcoe with respect to species diversity, distribution, biomass, and utility as indicators of lake trophic status. While previous studies (1984, 1987, 2006) focused on Cook's Bay, this study covered the entire lake area and identified four environmental variables controlling plant biomass: depth, substrate type, nutrient loading, and subwatershed area.

In comparison with previous studies in Cook's Bay, the plant community has been altered (since 1984) by invasive species (i.e. Eurasian Watermilfoil), has a greater maximum depth of colonization (10.5 m in 2008, 6.0 m in 1984), and has almost tripled in biomass (1.2 kg/m2 in 1984, 3.1 kg/m2 in 2008).

Aquatic Plants in Lake Simcoe: Distribution, Environmental Controls and Utility as Ecological Indicators
(Published: 2011)


Assimilative Capacity Study

Assimilative capacity is the relationship between water quality and quantity, land use, and the capability of the watercourse or lake, to resist the effects of landscape disturbance without impairment of water quality. An assimilative capacity study was done of the Lake Simcoe watershed in 2006.

Find out more about assimilative capacity in the Lake Simcoe watershed


Engineered Wetlands

A large engineered wetland was constructed to treat stormwater runoff in the Town of Aurora. These reports summarize the effectiveness of this engineered wetland.

Engineered Wetland-Phosphex Integration Project - Phase 1 Treatability Testing
(Published: 2010)

Engineered Wetland-Phosphex Integration Project - Raw Data and Appendices
(Published: 2010)


Erosion and Sediment Control Research Study

The purpose of the Erosion and Sediment Control Policies and Practices Research Study for the Lake Simcoe Watershed is for the LSRCA to work collaboratively with local stakeholders to support improvements to erosion and sediment control practices within the Lake Simcoe Watershed, through funding support from the MOECC. The long term goal of this study is to reduce the overall impact of urban stormwater on Lake Simcoe and its tributaries.

Erosion and Sediment Control Study(Published: 2016)


Lake Simcoe Basin Stormwater Management and Retrofit Opportunities

Stormwater runoff represents a major source of pollution to Lake Simcoe and its tributaries. The lake, which is already showing signs of impairment due to anthropogenic activities, is under increasing stress due to urban growth. The purpose of this study is to create a complete, consistent and contemporary data set of all urban catchments, outlets, and existing and potential locations of Stormwater Management Facilities, as well as to calculate the phosphorus load associated with urban stormwater runoff.

Lake Simcoe Basin Stormwater Management and Retrofit Opportunities
(Published: 2007)


Lake Simcoe Environmental Management Strategy (LSEMS)

LSEMS studies were initiated in 1981 in response to a declining coldwater fishery in Lake Simcoe. Scientists reported that increasing urban development and agricultural activities in Lake Simcoe's drainage basin were filling the lake with excess nutrients. The resulting increase in plant life reduced the oxygen supply in the water, and was identified as a contributing factor in the collapse of the coldwater fishery.

In 1985, the "Final Report and Recommendations of the Steering Committee" recommended that phosphorus inputs from rural and urban sources be reduced. Thanks to a generous financial contribution from the Ontario Ministry of the Environment, the Lake Simcoe Environmental Management Strategy launched a website in 2003, featuring on-line LSEMS charts, reports, maps and data providing visitors with unique insight on the state of Lake Simcoe, and efforts to restore this $200 million annual resource to its former glory.

Find out more about LSEMS


Land Securement Project, Natural Heritage System

The purpose of Natural Heritage System Land Securement Project 2011-2015 is to provide background and direction for the Lake Simcoe Region Conservation Authority’s (LSRCA) land securement program. It outlines target land securement areas and implementation tools for the securement and disposition of natural heritage or other lands by the LSRCA.

Land Securement Project (2011-2015), Natural Heritage System (Published: 2011)


Mapping Expected Road Mortality Hotspots for Wildlife

Roads have significant impacts on the ability of wildlife to move throughout their home ranges. Direct mortality of animals related to roads can be particularly significant for species such as frogs, turtles, and salamanders, which travel significant distances from wetlands to uplands to complete their breeding cycle (Fahrig and Rytwinski, 2009). This study tests land cover maps and traffic data to predict areas of wildlife-vehicle collisions hotspots, with the ultimate goal of providing roads planners with maps of areas on which to focus efforts.

Mapping Expected Road Mortality Hotspots for Wildlife (Published: 2015)


Modelling of Environmental Flow Targets for the Lovers Creek Subwatershed

Environmental Flows characterize the quantity, timing and quality of river flows needed to support the ecological health and function of a river while still recognizing the human needs and uses of the river. This report is the result of a pilot study intended to develop and test a methodology for developing an Environmental Flow regime for the Lovers Creek subwatershed.

Modelling of Environmental Flow Targets for the Lovers Creek Subwatershed (Published: 2015)


Natural Heritage System for the Lake Simcoe Watershed

This report attempts to identify the components of the Natural Heritage System (NHS): significant habitats for endangered and threatened species, wetlands, woodlands, valleylands, wildlife and fish habitats, areas of natural and scientific interest, and linkages. The report also attempts to provide the criteria and mapping to the planning authority. The NHS is based on land use mapping for the entire watershed.

Natural Heritage System for the Lake Simcoe Watershed (Published: 2007)

View NHS map



Parking Lot Design Guidelines to Promote Salt Reduction

In an effort to reduce winter salt application rates in the Lake Simcoe watershed, LSRCA has developed design guidelines for parking lots on commercial and institutional properties to promote the construction of sites that do not require as much salt application for winter maintenance. This report summarizes the project and includes design feature drawings, fact sheets and site plan design drawings.


Report on Phosphorus Loads to Lake Simcoe

Phosphorus was identified as a problem for the health of the lake in the 1970s. We have been monitoring it to help us understand its sources and impacts. The purpose of the report is to share with our watershed partners the most current data about the amount of phosphorus entering the lake.

Report on Phosphorus Loads to Lake Simcoe, 2012 - 2015
(Published: 2017)

Phosphorus Load Fact Sheet, Lake Simcoe 2010-2011

Report on Phosphorus Loads to Lake Simcoe, 2007-2009
(Published: 2013)

Phosphorus Loads Report FAQs
(Published: 2013)

The following report presents our findings for the period 2004-2007:

Report on Phosphorus Loads to Lake Simcoe, 2004-2007
(Published: 2009)


Annual Water Balances, Total Phosphorus Budgets and Total Nitrogen and Chloride Loads to Lake Simcoe

This report is meant to complement the corresponding "Report on Phosphorus Loads to Lake Simcoe" above and provides technical details including the methodology used for all components of the phosphorus load calculations.

Annual Water Balances and Total Phosphorus Loads to Lake Simcoe (2010 - 2011) (Published: 2017)

Annual Water Balances and Total Phosphorus Loads to Lake Simcoe (2007-2009) (Published: 2013)

Annual Water Balances, Total Phosphorus Budgets and Total Nitrogen and Chloride Loads to Lake Simcoe (2004-2007) (Published: 2012)


Estimation of Phosphorus Loadings to Lake Simcoe

This report estimates phosphorus loadings to Lake Simcoe under various scenarios: The Base Case (existing conditions), Growth, and selected BMP scenarios. An understanding of the amount and sources of phosphorus delivered to the lake, the amount that could result from future projected watershed development, and the amount after implementation of Best Management Practices (BMPs) is necessary to successfully develop a nutrient strategy necessary to meet the dissolved oxygen target for Lake Simcoe. The tools used to achieve the objective are the modeling programs Canadian Nutrient and Watershed Evaluation Tool (CANWET™) (version 3.0) and the Pollution Reduction Impact Comparison Tool (PRedICT)...

Estimation of Phosphorus Loadings to Lake Simcoe
(Published: 2010)


Retrofitting of Urban Stormwater Management Facilities Using Innovative Technologies: Comparison of Three Innovative Solutions

Through the Ontario Ministry of Environment's Showcasing Water Innovation program, the Lake Simcoe Region Conservation Authority (LSRCA) worked with our community, municipal and other government partners to implement stormwater management retrofits. Three facilities recognized in our watershed management plans were identified for retrofit: George Richardson (Newmarket), Colony Trail (East Gwillimbury), and Lincoln Pond (Uxbridge). In this case study we compare the efficiency of three innovative technology approaches to retrofitting stormwater management ponds, each designed to decrease the level of phosphorous and other pollutants discharged to the receiving water body. This project has received funding support from the Government of Ontario.

Retrofitting of Urban Stormwater Management Facilities Using Innovative Technologies (English)
(Published: 2014)

Retrofitting of Urban Stormwater Management Facilities Using Innovative Technologies (French)
(Published: 2014)

Showcasing Water Innovation: Stormwater Performance Monitoring Report
(Published: 2013)

Appendix to above
(Published: 2013)


Salt Vulnerable Areas Within the Lake Simcoe Watershed

The purpose of this study is to identify and map geographic areas in the Lake Simcoe watershed that are vulnerable to water quality impairment caused by the application of salt for the purpose of winter maintenance of roads, parking lots, and sidewalks (i.e. ‘salt vulnerable areas’). The results of this study will be used to help focus education and outreach projects, and will be provided to watershed municipalities for use in road operations and strategic planning.

Salt Vulnerable Areas Within the Lake Simcoe Watershed (Published: 2015)


Stormwater Inspection and Record Management Best Practices, Data Model Design, and Comprehensive Report

Urban stormwater represents approximately 31% of the phosphorus entering Lake Simcoe. Municipalities, the Province, and LSRCA focus their efforts on managing this urban run-off, including the establishment and maintenance of stormwater management ponds, oil-grit separators, and more recently, low impact development features. This data model contributes to this shared goal of stormwater management by defining key information about the location, type, and condition of these features which municipalities can track within a GIS environment. Ultimately, this stormwater data model will ensure that data is collected consistently across the watershed to allow the sharing of information amongst government agencies, and to support improved maintenance of stormwater management facilities.


Stormwater Pond Maintenance and Anoxic Conditions Report

Urban stormwater runoff is widely recognized as a significant source of pollutants to Lake Simcoe and accounts for an estimated 14 percent of annual phosphorus (P) loading. Therefore, interception and treatment of these waters is crucial to maintain the ecological health of receiving streams and lakes. This is most commonly achieved through the use of stormwater ponds of which there are 135 quality facilities in the Lake Simcoe watershed. In 2010, a survey of 98 ponds was conducted to evaluate the efficiency of these ponds as compared with their original design efficiency and investigate the prevalence of low oxygen conditions in stormwater ponds. Both these factors influence the ability of the pond to effectively trap and retain sediments and nutrients. The study found that the majority of ponds are experiencing low oxygen conditions and require some degree of clean out maintenance and are therefore not achieving the nutrient reductions previously assumed.

Stormwater Pond Maintenance and Anoxic Conditions Report (Published: 2011)


Stream Monitoring in the Tributaries of Lake Simcoe: Fish 
Technical Progress Series in Stream Monitoring: Report No.1

As part of the Lake Simcoe Region Conservation Authority tributary monitoring program, fish assemblages have been monitored since 2002 and water temperature data has been collected since 2003. The purpose of this monitoring program is to track the health of fish populations in the streams of the Lake Simcoe watershed and to assess spatial and temporal trends. 

Steam Monitoring in the Tributaries of Lake Simcoe: Fish


 

Water Reuse

This study was conducted to look at the technical feasibility of water reuse, and explore available supply, demand and the cost benefit for various reuse options. We also provide a summary of findings from a scan of local stakeholder and public attitudes towards the concept of reclaiming treated wastewater.

Water Reuse Concept Analysis
(Published: 2010)

Stakeholder/Public Attitudes towards Reuse of Treated Water
(Published: 2010)


Watershed Health Reporting

Environmental Monitoring Report

This report provides an overview of factors that influence the health of the Lake Simcoe watershed. LSRCA's extensive monitoring program studies the lake's nearshore ecosystem, water quality and quantity in both the tributaries and groundwater, and biological parameters in the lake's rivers, streams, and creeks. This collection of monitoring data (2007 to 2011) summarizes the watershed's most current conditions and examines long-term and short-term biological and environmental trends.

Environmental Monitoring Report
(Published: 2013)


Lake Simcoe Comprehensive Monitoring Strategy

The Lake Simcoe Comprehensive Monitoring Strategy (CMS) identifies the state of monitoring, data management and reporting of environmental information on Lake Simcoe and its watershed, and makes recommendations based on the requirements of the Lake Simcoe Protection Plan. The CMS was compiled by a multi-agency working group consisting of members from the Lake Simcoe Region Conservation Authority, Environment Canada and the Ontario Ministries of Natural Resources and Forestry, Environment and Climate Change, and Agriculture, Food and Rural Affairs. It was released as a companion to the Lake Simcoe Monitoring Report, 2014.

Lake Simcoe Comprehensive Monitoring Strategy (Published: 2015)

Recommandations de la Stratégie globale de surveillance du lac Simcoe (Published: 2015)


Lake Simcoe Monitoring Report, 2014

The Lake Simcoe Monitoring Report, 2014, provides the long-term trends of all environmental monitoring programs for Lake Simcoe and its watershed, highlighting current research that informs these trends. The report was written by the Ministry of the Environment and Climate Change with data contributions from the Lake Simcoe Region Conservation Authority, Ministry of Natural Resources and Forestry, and York, Durham, and Simcoe and Muskoka Health Units. The Monitoring Report provides the technical environmental monitoring information for the Minister’s Five-Year Report on Lake Simcoe (2015).

Lake Simcoe Monitoring Report, 2014 (Published: 2014)


Minister’s Five Year Report on Lake Simcoe

To protect and restore the ecological health of the Lake Simcoe watershed Lead statement - The Minister’s Five Year Report on Lake Simcoe outlines actions taken to address the goals of the Lake Simcoe Protection Plan and summarizes the results of ongoing environmental monitoring in the watershed.

Minister’s Five Year Report on Lake Simcoe - English (Published: 2015)

Le Rapport quinquennal du ministre sur le lac Simcoe : Protéger et restaurer la santé écologique du bassin versant du lac Simcoe Lead statement - Le Rapport quinquennal du ministre sur le lac Simcoe présente les mesures prises pour réaliser les objectifs du Plan de protection du lac Simcoe et résume les résultats des activités de surveillance environnementale en cours dans le bassin versant.

Le Rapport quinquennal du ministre sur le lac Simcoe - French (Published: 2015)


Oak Ridges Moraine and Adjacent Greenbelt Lands

This report card was prepared by the Conservation Authorities Moraine Coalition (CAMC) to provide science-based information to inform the 2015 review of the Greenbelt Plan and the Oak Ridges Moraine Conservation Plan. Key funding support generously provided by the Friends of the Greenbelt Foundation.

Environmental Health of the Oak Ridges Moraine and Adjacent Greenbelt Lands
(Published: 2015)


Oro Moraine Report Card (2010)

The report card provides a summary of environmental health on the Oro Moraine. It is the first report card based on a physiographic feature in Ontario and represents an innovative approach to feature-based reporting.

Oro Moraine Report Card,
(Published: 2010)


Watershed Report Card

Monitoring and protecting the watershed is a very important part of our overall effort to preserve the health of the environment upon which we all depend. We work with our partners year-round to provide the best scientific investigation of the health of the watershed and to establish programs for its protection and restoration. This includes continually monitoring, evaluating and communicating the results. One way to inform our community about the health of our watershed is through our Watershed Report Card.

Read LSRCA's Watershed Report Cards »