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CLOCA Trails
Conservation Ontario
Conservation Ontario — 2018-02-15 <div><p style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><a href='https://metadata.cacore.ca/Public/Details/id=13' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </p><p style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='color:#1F497D;'><br /></span></p><p style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='color:#1F497D;'>This trails layer includes only those trails that lie within CLOCA owned conservation areas, and that are sanctioned by CLOCA for use by the public. </span><span style='color:rgb(31, 73, 125);'>Trail information was collected by CLOCA staff using a handheld Trimble GPS unit, and QC'd using airphoto and hillshaded DEM interpretation. Data was typically collected between the months of May and November. The majority of the Trail data was collected between 2004 and 2008, with additional trail data added as sanctioned additions/alterations were made throughout the trail network.</span></p></div> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA High Volume Recharge Areas
Conservation Ontario
Conservation Ontario — 2018-12-06 <div><a href='https://metadata.cacore.ca/Public/Details/id=273' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </div><div><u><font color='#000120'></font></u><u></u><u></u><br /></div><div></div><div><span style='color:rgb(51, 51, 51); font-family:&quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif;'><font size='3'>CLOCAGWIaa183 grid represents sum of ugsaa with ussaa to obtain total groundwater infiltration (gwiaa). This 2007 draft data set was generated using the PRMS surface water model by Earthfx for CLOCA's Tier 1 water budget contract/source water protection program (2007-2008). Values are in mm/a transient (long-term annual averages) for a 19-year period of record of 1981-1999. Annual and monthly average grids are also available (summed daily means). Spatial resolution is a 25m grid covering CLOCA watersheds. The south-west corner of the data set is omitted due to the original grid definition. Zonal Statistics (mean) for CLOCA Watershed was calculated and CLOCAgwiaa183 was extracted. Raster calculator was then used to extract 1.15 or 15% above the mean for the jurisdiction.</font></span><br /></div> https://ago-item-storage.s3-external-1.amazonaws.com/20586dab57ce40fd9b102d97c144302c/CLOCA_Open_Data_Licence_v1.pdf?X-Amz-Security-Token=FQoGZXIvYXdzEAgaDH6Tcd4A1LiEzzJvGCK3A15SSi%2BNgTTFFgbmDSd6vHUn6coCH6e76que0oh6zwi006n3tNwtP2oZB%2BXBXN1hFhuwlPp%2BqwBTmsV92DwOHmoActHU1M%2F1h8O8CImGrDXsK8ZWP8NwTwnnMTjFlW3aK5dy%2BoZXrARatulHT1Z6DOzWXO7WF%2BkQF8kPuxebweQ5NPI3q7K8KLm5rfwJu0zlZsm67XIzSDjbjK%2BVSj0DsOFDkZFFmK6aYmR8gC2wHoCi6TkiJEylbqZW617BeN73a%2BYVAshnjTKmEY8WsacVotLuXyreEsaD7CElBC4oRQcbnJT3qx8qU%2BaUgghxQmuWy0a%2FJ1i%2BVgUdq1iIeFN9VEnmIzwudq7mJdt9plMimOVpZgX7ym%2FQjzUETM1vrMxiNWrSx9qhjvtdMt0%2BG1CP9C3wQ%2B8AYtoUTcUzcCRw2ZrfR4eUyRzTTQKeaup5nlr0yXZZ7Jl6x5xcqI37%2FdkAuSVDPvZbkl7Mukm8SBURcMykiNPRhu5bSKUViHKitSzXRUV%2BewyvzEtbNCJA%2FD%2Bb9HO3m4tbUrq58wRHCVDZbHWHvuHo5LZNfz%2FlD9%2FhhcsQXvDcUyDjqM8o%2FOGk4AU%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Date=20181206T154641Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=300&amp;X-Amz-Credential=ASIAYZTTEKKEWWCWACVP%2F20181206%2Fus-east-1%2Fs3%2Faws4_request&amp;X-Amz-Signature=2eec2d0c4702fb87f4bfbf8bfac73672a6c4700e670330999f19684874cc3794
City of Pickering Open Data Portal Translation missing: fr.blacklight.search.logo
CLOCA - Integrated Water Monitoring Program - Coastal Monitoring Stations
Conservation Ontario
Conservation Ontario — 2020-03-12 <div><a href='https://metadata.cacore.ca/Public/Details/id=394' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </div><div><u></u><br /></div><div>The coastal wetlands component of the Integrated Monitoring Program includes 11 coastal wetlands along the shore of Lake Ontario. These wetlands are monitored annually as part of the larger Durham Region Coastal Wetland Monitoring Project. At each wetland, six ecological attributes are measured as proxies for wetland health; water quality, submerged aquatic vegetation community, aquatic macroinvertebrate community, fish community, bird community, and amphibian community.</div> https://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOSPA Source Protection Area Boundary
Conservation Ontario
Conservation Ontario — 2024-01-18 <div><div><a href='https://metadata.cacore.ca/Public/Details/id=243' target='_blank' rel='nofollow ugc noopener noreferrer'>Click to view Metadata</a> </div></div><div><br /></div><div>The Clean Water Act, 2006 legislation requires watershed boundaries for both Source Water Protection Regions (SPR's) and Source Water Protection Authorities (SPA’s). This layer defines the jurisdictional boundary for the Central Lake Ontario Source Protection Authority. The boundary were created using a 'scientific' watershed delineation approach that drew upon a hybrid of data sources.<br /></div>
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CLOCA - Integrated Water Monitoring Program - Terrestrial Monitoring Stations
Conservation Ontario
Conservation Ontario — 2020-03-12 <div><a href='https://metadata.cacore.ca/Public/Details/id=24' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </div><div><u></u><br /></div><div>The terrestrial component of CLOCA’s Integrated Monitoring Program is comprised of 24 long-term forest monitoring stations. The purpose of this program is to track forest health over time. All stations are located within mixed and deciduous forest patches and were selected based on even distribution and accessibility. Each station is monitored annually for tree health &amp; downed woody debris, plant community, and breeding birds.</div> https://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Conservation Areas - Public Access
Conservation Ontario
Conservation Ontario — 2018-02-08 <div><a href='https://metadata.cacore.ca/Public/Details/id=22' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </div><div><u></u><br /></div><div>Lands owned by CLOCA for the purpose of conservation and public recreation and enjoyment. Publicly accessible conservation areas.</div><div><br /></div> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Conservation Areas - No Access
Conservation Ontario
Conservation Ontario — 2018-02-08 <div><a href='https://metadata.cacore.ca/Public/Details/id=23' target='_blank' rel='nofollow ugc noopener noreferrer'>Click to view Metadata</a> </div><div><u></u><br /></div><div>Land owned by CLOCA strictly for the purpose of conservation. This land is NOT publicly accessible.</div><div><br /></div> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
City of Pickering Open Data Portal Translation missing: fr.blacklight.search.logo
CLOCA Functional Natural Heritage System
Conservation Ontario
Conservation Ontario — 2017-12-21 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=10' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </span></div><div><span style='text-align:justify;'><u></u><br /></span></div><div><span style='text-align:justify;'>Functional Natural Heritage System (FNHS) is a series of overlays of valued natural system components. Many of these components have been derived from CLOCA's Ecological Land Classification (ELC) mapping.</span></div><div><br /></div><div><a href='https://camaps.maps.arcgis.com/sharing/rest/content/items/32180d7d76014b11aaef360adc1e5218/data' rel='nofollow ugc' target='_blank'>Developing the Natural Heritage System</a><u></u><br /></div><u></u><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>FNHS components:</span><br /><span style='text-align:justify;'>a) Core Habitat Areas and Corridors:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>Core Habitat Areas: Although virtually all vegetated areas provide some habitat for wildlife, there are some habitats that can be considered “core” because they are able to provide for a large suite of wildlife or support sensitive wildlife species. Deciding which habitats should be considered core habitats is a somewhat subjective exercise depending on the species being considered, but for the purposes of defining a FNHS, the designation of core habitat areas has been made using the following criteria:</span><br /></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>• Size - the physical size of the habitat being measured. Larger sized habitats are preferable to smaller sized habitats. </span><br /><span style='text-align:justify;'>• Shape - refers to the geometric shape of the habitat being measured. Compact habitat patches (e.g. square or circular) are preferable to linear (e.g. rectangular) patches as they have fewer edges. </span><br /><span style='text-align:justify;'>• Juxtaposition - the position of the habitat on the landscape relative to other features such as settled areas or natural areas. Natural areas adjacent to other natural areas are preferred over natural areas adjacent to urban development. </span><br /><span style='text-align:justify;'>• Representation - the range of a specific habitat type in the watershed. A high diversity of well-distributed habitat types is preferable. </span><br /><span style='text-align:justify;'>• Multiple Function - the ability of a habitat to provide more than one function for local wildlife communities.   </span><br /><span style='text-align:justify;'>• Species at Risk - refers to the ability of a habitat patch to support species at risk as identified by the Committee on the Status of Wildlife in Canada (COSEWIC) and the Committee on the Status of Species at Risk in Ontario (COSSARO).</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>Habitat size and shape are important factors for any habitat, however in forests, size and shape are particularly important because they determine the amount of forest interior (100 m from forest edge) and deep forest interior (200 m from forest edge) that may be present. Forest interior is a prerequisite for many breeding birds as it provides increased protection from wind, light, nest parasitism and predation.</span><br /><br /><span style='text-align:justify;'>As human development approaches and in some cases surrounds wildlife habitats, the effects of noise, light, disturbance from recreation or pets, and other stressors are increased. Consequently, species that are sensitive to disturbance are less likely to occupy these habitats even if they meet their needs for food or cover, and the result is a loss in overall biodiversity. Habitat size, shape and juxtaposition were evaluated using the LAM.</span><br /><br /><span style='text-align:justify;'>Representation and multiple function have been assessed using ELC. Because wildlife have varying needs, and some have very specific needs, a wide variety of habitats must exist within a watershed to support biodiversity. Representation is not limited to broad habitats such as forests and wetlands; it includes types of forests as well as types of wetlands.</span><br /><br /><span style='text-align:justify;'>The evaluation of habitats for species at risk within the CLOCA jurisdiction is done using information from the Natural Heritage Information Centre (NHIC), from data collected through field work, external documents, or Environmental Impact Studies, and from data reported to the Authority by the public.</span><br /><br /><span style='text-align:justify;'>Corridors:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>Animals are not stationary. Species have a tendency to move between habitats to fulfill dietary or lifecycle needs, seek refuge, and escape predation, so connectivity between habitat patches is important for maintaining wildlife populations. At a broader scale, connectivity enables animal migration, which is integral to maintaining genetic diversity and facilitating the repopulation of habitats after local extinction events.</span><br /><br /><span style='text-align:justify;'>Because corridors serve a number of functions and operate at varying scales, they can be categorized in the following manner: </span><br /><span style='text-align:justify;'>• Regional Corridors</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>These are major movement corridors which connect a number of watersheds at a large landscape scale. Regional corridors are often comprised of upland areas since they exist across watershed divides and they are connected via large habitat patches. Examples of Regional Corridors include the Oak Ridges Moraine and Lake Iroquois Shoreline.</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>• Landscape Corridors</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>These are major movement routes within the watersheds that connect core areas and/or are robust enough to be sustainable as habitat units themselves.  They typically follow linear features such as creeks and valleys, and can be composed of a series of independent habitats that allow wildlife to “hopscotch” across the landscape. Landscape corridors should be at least 100 metres in width. (Environment Canada, 2004)</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>• Local Corridors</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>These are minor movement routes within the watershed that help to connect habitat patches into a continuous series.  They are often associated with creek valleys and typically function at a sub-watershed scale.  They function with landscape corridors to connect the smaller habitats to the larger ones. Local corridors are 60 metres in width.</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>b) Riparian Corridors:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>In order to protect/enhance the thermal regime of the watercourses in the CLOCA jurisdiction a minimum 30-metre buffer from the wetted width of either side of a watercourse is required. Watercourses can be permanent, intermittent and ephemeral. The 30-metre buffer requirement is well documented in and supports the goals, objectives and recommendations of the Central Lake Ontario Fisheries Management Plan.</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>c) Species At Risk (SAR) Riparian Corridors:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>SAR riparian corridors are required to protect the reaches of watercourses that provide habitat for the provincially endangered Redside Dace. Currently within the CLOCA jurisdiction Redside Dace occurs only in reaches of the Lynde Creek Watershed, however ongoing watershed monitoring occurs across the jurisdiction for this species. In keeping with the recovery strategy in development for Redside Dace, a buffer of the meander belt plus 30-metres on either side of the wetted width of the watercourse is required. Buffers are applied to reaches of permanent and intermittent watercourses where habitat for Redside Dace occurs or has been known to occur historically.</span><br /><br /></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>d) Wetlands &gt;/= 0.5ha:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>Existing wetlands in CLOCA watersheds occasionally fall short of the 10%/watershed target suggested in Environment Canada's “How Much Habitat is Enough?” AOC Guidelines of 10%/watershed. The guidelines also recommend restoration of wetland habitat to mirror historical percentages. As such, it has been determined that all wetlands are valued and should be considered in the development of the FNHS. Since ELC at the Community Series level of detail identifies 0.5ha polygons as the smallest units mappable, 0.5ha is the smallest wetland considered for incorporation into the FNHS.</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>e) Woodlands &gt;/= 0.5ha:</span><br /><span style='text-align:justify;'>Existing woodlands in CLOCA watersheds generally fall short of targets suggested in Environment Canada's “How Much Habitat is Enough?” AOC Guidelines of 30%/watershed. As such, it has been determined that all woodlands are valued and should be considered in the development of the FNHS. Since ELC at the Community Series level of detail identifies 0.5ha polygons as the smallest units mappable, 0.5ha is the smallest woodland considered for incorporation into the FNHS.</span><br /><br /><span style='text-align:justify;'>f) Provincially Significant Wetlands (PSWs):</span><br /><span style='text-align:justify;'>PSWs have been designated by the Ministry of Natural Resources and are protected features under provincial policies including the Provincial Policy Statement, The Oak Ridges Moranine Conservation Plan and the Greenbelt Plan. While already protected by policy, PSWs are also important biological features and therefore warrant inclusion into the FNHS mapping.</span><br /><br /><span style='text-align:justify;'>g) Areas of Natural and Scientific Interest (ANSIs):</span><br /><span style='text-align:justify;'>ANSIs have been designated by the Ministry of Natural Resources and are protected features under provincial policies including the Provincial Policy Statement, The Oak Ridges Moraine Conservation Plan and the Greenbelt Plan. While already protected by policy, ANSIs are also important biological and physiographical features and therefore warrant inclusion into the FNHS mapping.</span></div> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
Central Lake Ontario Conservation Open Data Portal Translation missing: fr.blacklight.search.logo
CLOSPA Intake Protection Zone (IPZ) 2
Conservation Ontario
Conservation Ontario — 2024-01-22 <div><a href='https://metadata.cacore.ca/Public/Details/id=264' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;' target='_blank' rel='nofollow ugc noopener noreferrer'>Click to view Metadata</a><br /></div><div><br /></div>The area around an intake pipe in a lake or river that draws in the surface water used to supply the municipal drinking water system. Three zones, from the closest to the farthest from the intake, rate the vulnerability threat. The IPZ-2 is the SECOND ZONE around an intake where direct impacts are possible because contaminants may reach the intake within 2 hours.<div>NOTE: IPZ-2 features were not combined resulting in overlapping IPZ-2 features for the Oshawa Water System.</div>
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CLOCA Scientific Watersheds
Conservation Ontario
Conservation Ontario — 2017-12-20 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=7' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </span></div><div><span style='text-align:justify;'><u></u><br /></span></div><span style='text-align:justify;'>Scientific Watersheds was created over the span of several years. The watersheds are updated as CLOCA re-delineates/updates its watershed boundaries using Arc Hydro.</span> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOSPA Significant Groundwater Recharge Area
Conservation Ontario
Conservation Ontario — 2024-01-18 <div><a href='https://metadata.cacore.ca/Public/Details/id=238' target='_blank' rel='nofollow ugc noopener noreferrer'>Click to view Metadata</a><br /></div><div><br /></div>The jurisdictional identification of a Significant Groundwater Recharge Area (SGRA) was approved by the Source Protection Committee (SPC). However, Technical Rule (45) requires that “an area shall NOT be delineated as a SGRA unless the area has a hydrological connection to a surface water body or aquifer that is a source of drinking water for a drinking water system.” This includes private systems (O. Reg. 170/03). This Technical Rule introduces the idea of clipping out SGRAs that are of no significance from a drinking water point of view, since it would not make practical sense to protect them. These areas may be important in other contexts, but they are not considered significant under the CWA. In the CTC Region, the SGRA located within the municipal service boundary that are on the Lake Ontario shoreline and sourced from Lake Ontario have been clipped out if no drinking water systems (as defined in the Safe Drinking Water Act, 2002) depend on those SGRAs.
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CLOSPA Intake Protection Zone (IPZ) 3
Conservation Ontario
Conservation Ontario — 2024-01-22 <div><a href='https://metadata.cacore.ca/Public/Details/id=264' style='color:rgb(0, 97, 155); text-decoration-line:none; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;' target='_blank' rel='nofollow ugc noopener noreferrer'>Click to view Metadata</a><br /></div><div><br /></div>The area around an intake pipe in a lake or river that draws in the surface water used to supply the municipal drinking water system. Three zones, from the closest to the farthest from the intake, rate the vulnerability threat. The IPZ-3 is the THIRD ZONE and largest zone around the intake where activities can impact the source water, but there is time to take action to ensure the intake and municipal water is not impacted.<div>NOTE: A null value in the Intake Identifier (Intake_ID) indicates that IPZ-3 feature is associated with more than 1 intake. For additional information on these one-to-many relationships, please refer to Assessment Report Chapter 5 - Spill Scenario Mapping.</div>
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CLOSPA Highly Vulnerable Aquifer
Conservation Ontario
Conservation Ontario — 2024-01-18 <div><a href='https://metadata.cacore.ca/Public/Details/id=236' target='_blank' rel='nofollow ugc noopener noreferrer'>Click to view Metadata</a> </div><div><u></u><br /></div><div>A Highly Vulnerable Aquifer (HVA) is an aquifer that can be easily changed or affected by contamination from both human activities and natural processes. <span style='color:rgb(80, 84, 92); font-family:&quot;Open Sans&quot;, sans-serif;'>When a municipality draws drinking water from a well, it gets that water from underground. This groundwater is found in aquifers which collect water much like a sponge does. When water can pass through soil, such as sand or gravel, we call that surface permeable. An aquifer is more vulnerable to contamination if the soil layer is thin. </span><span style='color:rgb(80, 84, 92); font-family:&quot;Open Sans&quot;, sans-serif;'>Aquifers are areas of soil or rock under the ground where cracks and spaces allow water to pool. They are considered highly vulnerable based on factors such as how deep it is underground, what sort of soil or rock is covering it, and the characteristics of the soil or rock surrounding it.</span></div>
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CLOSPA Intake Protection Zone (IPZ) 1
Conservation Ontario
Conservation Ontario — 2024-01-22 <div><a href='https://metadata.cacore.ca/Public/Details/id=264' target='_blank' rel='nofollow ugc noopener noreferrer'>Click to view Metadata</a><br /></div><div><br /></div>The Intake Protection Zone is the area around an intake pipe in a lake or river that draws in the surface water used to supply the municipal drinking water system. Three zones, from the closest to the farthest from the intake, rate the vulnerability threat. The IPZ-1 is the FIRST ZONE around an intake, and is very vulnerable to contamination. Direct and immediate impacts are possible as there is no time to take mitigating action.<div>NOTE: IPZ-1 features were not combined resulting in overlapping IPZ-1 features for the Oshawa Water System.</div>
Central Lake Ontario Conservation Open Data Portal Translation missing: fr.blacklight.search.logo
CLOSPA Aquifer Vulnerability Index
Conservation Ontario
Conservation Ontario — 2024-09-06 The vulnerability of drinking water to water quantity depletion is assessed under the water budget component of the Assessment Report. The results of the AVI are used in the delineation and vulnerability scoring of HVAs, as well as in the vulnerability scoring of the SGRAs. The CLOSPA has selected an advanced AVI approach for HVAs and SGRAs. This approach uses the interpreted products of geological and numerical models (three dimensional geologic layers) produced for the study area, rather than the raw data available in the provincial Water Well Information System (WWIS). Estimates of vertical and horizontal flow directions and flux are also considered. This advanced AVI approach is approved by the province. The AVI method produces a numerical index representing the relative vulnerability of an aquifer, based on the type and thickness of the soil above. The index quantifies the natural vulnerability of aquifers to sources of contamination at or near the surface, and through a translation process, categorizes groundwater vulnerability as high, medium, or low, respectively. The groundwater vulnerability is then converted into vulnerability score, and this score provides the ultimate expression of the groundwater vulnerability. Each aquifer is scored separately. The vulnerability scores of deeper aquifers take into account the protection afforded by overlying materials (aquifers and aquitards).According to the AVI methodology and Technical Rule (38) and (43), an area with vulnerability score of 6 has a ‘high' groundwater vulnerability and is therefore an HVA. This analysis assumes that the vulnerability of the aquifer increases as the relative amount of protection provided by the overlying geological materials decreases. The type and thickness of the overlying material is crucial to the scoring. The vulnerability scores of deeper aquifers take into account the protection afforded by overlying materials (aquifers and aquitards).
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CLOCA Targeted Terrestrial Natural Heritage System
Conservation Ontario
Conservation Ontario — 2017-12-21 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=9' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </span></div><div><span style='text-align:justify;'><u></u><br /></span></div><div><span style='text-align:justify;'>The Targeted Terrestrial Natural Heritage System (TTNHS) is determining where additional natural cover should occur adjacent to the FNHS, in order to achieve watershed health targets.  CLOCA adapted the Targeted Terrestrial Natural Heritage System (TTNHS) as developed by the Toronto Region Conservation Authority (TRCA), with minor changes to reflect local conditions for CLOCA watersheds. The approach used in defining the TTNHS is broken into three components:</span><br /></div><div><span style='text-align:justify;'>1) evaluation of current habitat patch characteristics using landscape metrics;</span><br /><span style='text-align:justify;'>2) determining the targeted condition for the landscape;</span><br /></div><div><span style='text-align:justify;'>3) identifying protection and restoration opportunities to reach the predetermined target condition for the watersheds within the CLOCA jurisdiction.</span></div><span style='text-align:justify;'><div><br /></div></span><div><a href='https://camaps.maps.arcgis.com/sharing/rest/content/items/32180d7d76014b11aaef360adc1e5218/data' rel='nofollow ugc' target='_blank'>Developing the Natural Heritage System</a><span style='text-align:justify;'><u></u><br /></span></div> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Scientific Subwatersheds
Conservation Ontario
Conservation Ontario — 2017-12-21 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=16' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </span></div><div><span style='text-align:justify;'><br /></span></div><span style='text-align:justify;'>Scientific Subwatershed was created over the span of several years. The boundary was updated as CLOCA was delineating/updating its watershed/subwatershed boundaries using Arc Hydro.</span> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Scientific Jurisdictional Boundary
Conservation Ontario
Conservation Ontario — 2017-12-20 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=17' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </span></div><div><span style='text-align:justify;'><u></u><br /></span></div><span style='text-align:justify;'>Scientific Boundary was updated by merging together the watershed boundaries of updated watershed floodplain mapping studies. The watershed boundaries were generated using Arc Hydro. See Scientific Watershed for more information.</span> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Functional Natural Heritage System
Conservation Ontario
Conservation Ontario — 2017-12-21 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=10' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </span></div><div><span style='text-align:justify;'><u></u><br /></span></div><div><span style='text-align:justify;'>Functional Natural Heritage System (FNHS) is a series of overlays of valued natural system components. Many of these components have been derived from CLOCA's Ecological Land Classification (ELC) mapping.</span></div><div><br /></div><div><a href='https://camaps.maps.arcgis.com/sharing/rest/content/items/32180d7d76014b11aaef360adc1e5218/data' rel='nofollow ugc' target='_blank'>Developing the Natural Heritage System</a><u></u><br /></div><u></u><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>FNHS components:</span><br /><span style='text-align:justify;'>a) Core Habitat Areas and Corridors:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>Core Habitat Areas: Although virtually all vegetated areas provide some habitat for wildlife, there are some habitats that can be considered “core” because they are able to provide for a large suite of wildlife or support sensitive wildlife species. Deciding which habitats should be considered core habitats is a somewhat subjective exercise depending on the species being considered, but for the purposes of defining a FNHS, the designation of core habitat areas has been made using the following criteria:</span><br /></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>• Size - the physical size of the habitat being measured. Larger sized habitats are preferable to smaller sized habitats. </span><br /><span style='text-align:justify;'>• Shape - refers to the geometric shape of the habitat being measured. Compact habitat patches (e.g. square or circular) are preferable to linear (e.g. rectangular) patches as they have fewer edges. </span><br /><span style='text-align:justify;'>• Juxtaposition - the position of the habitat on the landscape relative to other features such as settled areas or natural areas. Natural areas adjacent to other natural areas are preferred over natural areas adjacent to urban development. </span><br /><span style='text-align:justify;'>• Representation - the range of a specific habitat type in the watershed. A high diversity of well-distributed habitat types is preferable. </span><br /><span style='text-align:justify;'>• Multiple Function - the ability of a habitat to provide more than one function for local wildlife communities.   </span><br /><span style='text-align:justify;'>• Species at Risk - refers to the ability of a habitat patch to support species at risk as identified by the Committee on the Status of Wildlife in Canada (COSEWIC) and the Committee on the Status of Species at Risk in Ontario (COSSARO).</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>Habitat size and shape are important factors for any habitat, however in forests, size and shape are particularly important because they determine the amount of forest interior (100 m from forest edge) and deep forest interior (200 m from forest edge) that may be present. Forest interior is a prerequisite for many breeding birds as it provides increased protection from wind, light, nest parasitism and predation.</span><br /><br /><span style='text-align:justify;'>As human development approaches and in some cases surrounds wildlife habitats, the effects of noise, light, disturbance from recreation or pets, and other stressors are increased. Consequently, species that are sensitive to disturbance are less likely to occupy these habitats even if they meet their needs for food or cover, and the result is a loss in overall biodiversity. Habitat size, shape and juxtaposition were evaluated using the LAM.</span><br /><br /><span style='text-align:justify;'>Representation and multiple function have been assessed using ELC. Because wildlife have varying needs, and some have very specific needs, a wide variety of habitats must exist within a watershed to support biodiversity. Representation is not limited to broad habitats such as forests and wetlands; it includes types of forests as well as types of wetlands.</span><br /><br /><span style='text-align:justify;'>The evaluation of habitats for species at risk within the CLOCA jurisdiction is done using information from the Natural Heritage Information Centre (NHIC), from data collected through field work, external documents, or Environmental Impact Studies, and from data reported to the Authority by the public.</span><br /><br /><span style='text-align:justify;'>Corridors:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>Animals are not stationary. Species have a tendency to move between habitats to fulfill dietary or lifecycle needs, seek refuge, and escape predation, so connectivity between habitat patches is important for maintaining wildlife populations. At a broader scale, connectivity enables animal migration, which is integral to maintaining genetic diversity and facilitating the repopulation of habitats after local extinction events.</span><br /><br /><span style='text-align:justify;'>Because corridors serve a number of functions and operate at varying scales, they can be categorized in the following manner: </span><br /><span style='text-align:justify;'>• Regional Corridors</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>These are major movement corridors which connect a number of watersheds at a large landscape scale. Regional corridors are often comprised of upland areas since they exist across watershed divides and they are connected via large habitat patches. Examples of Regional Corridors include the Oak Ridges Moraine and Lake Iroquois Shoreline.</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>• Landscape Corridors</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>These are major movement routes within the watersheds that connect core areas and/or are robust enough to be sustainable as habitat units themselves.  They typically follow linear features such as creeks and valleys, and can be composed of a series of independent habitats that allow wildlife to “hopscotch” across the landscape. Landscape corridors should be at least 100 metres in width. (Environment Canada, 2004)</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>• Local Corridors</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>These are minor movement routes within the watershed that help to connect habitat patches into a continuous series.  They are often associated with creek valleys and typically function at a sub-watershed scale.  They function with landscape corridors to connect the smaller habitats to the larger ones. Local corridors are 60 metres in width.</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>b) Riparian Corridors:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>In order to protect/enhance the thermal regime of the watercourses in the CLOCA jurisdiction a minimum 30-metre buffer from the wetted width of either side of a watercourse is required. Watercourses can be permanent, intermittent and ephemeral. The 30-metre buffer requirement is well documented in and supports the goals, objectives and recommendations of the Central Lake Ontario Fisheries Management Plan.</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>c) Species At Risk (SAR) Riparian Corridors:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>SAR riparian corridors are required to protect the reaches of watercourses that provide habitat for the provincially endangered Redside Dace. Currently within the CLOCA jurisdiction Redside Dace occurs only in reaches of the Lynde Creek Watershed, however ongoing watershed monitoring occurs across the jurisdiction for this species. In keeping with the recovery strategy in development for Redside Dace, a buffer of the meander belt plus 30-metres on either side of the wetted width of the watercourse is required. Buffers are applied to reaches of permanent and intermittent watercourses where habitat for Redside Dace occurs or has been known to occur historically.</span><br /><br /></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>d) Wetlands &gt;/= 0.5ha:</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><span style='text-align:justify;'>Existing wetlands in CLOCA watersheds occasionally fall short of the 10%/watershed target suggested in Environment Canada's “How Much Habitat is Enough?” AOC Guidelines of 10%/watershed. The guidelines also recommend restoration of wetland habitat to mirror historical percentages. As such, it has been determined that all wetlands are valued and should be considered in the development of the FNHS. Since ELC at the Community Series level of detail identifies 0.5ha polygons as the smallest units mappable, 0.5ha is the smallest wetland considered for incorporation into the FNHS.</span></div><div style='padding:0px; margin-top:0px; margin-right:0px; margin-bottom:0px;'><br /><span style='text-align:justify;'>e) Woodlands &gt;/= 0.5ha:</span><br /><span style='text-align:justify;'>Existing woodlands in CLOCA watersheds generally fall short of targets suggested in Environment Canada's “How Much Habitat is Enough?” AOC Guidelines of 30%/watershed. As such, it has been determined that all woodlands are valued and should be considered in the development of the FNHS. Since ELC at the Community Series level of detail identifies 0.5ha polygons as the smallest units mappable, 0.5ha is the smallest woodland considered for incorporation into the FNHS.</span><br /><br /><span style='text-align:justify;'>f) Provincially Significant Wetlands (PSWs):</span><br /><span style='text-align:justify;'>PSWs have been designated by the Ministry of Natural Resources and are protected features under provincial policies including the Provincial Policy Statement, The Oak Ridges Moranine Conservation Plan and the Greenbelt Plan. While already protected by policy, PSWs are also important biological features and therefore warrant inclusion into the FNHS mapping.</span><br /><br /><span style='text-align:justify;'>g) Areas of Natural and Scientific Interest (ANSIs):</span><br /><span style='text-align:justify;'>ANSIs have been designated by the Ministry of Natural Resources and are protected features under provincial policies including the Provincial Policy Statement, The Oak Ridges Moraine Conservation Plan and the Greenbelt Plan. While already protected by policy, ANSIs are also important biological and physiographical features and therefore warrant inclusion into the FNHS mapping.</span></div> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Land Cover
Conservation Ontario
Conservation Ontario — 2017-12-21 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=14' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </span></div><div><span style='text-align:justify;'><u></u><br /></span></div><span style='text-align:justify;'>The Land Cover dataset is derived using orthophoto interpretation and classifies all non-ELC landforms. Classifications include: Aggregate, Agriculture Facility, Airport, Athletic Field, Commercial, Crop Field, Golf Facility, High Density Urban Residential, Industrial, Inst, Institutional Building, Institutional Greenspace, Landfill, Park, Pasture, Railway, Rural Residential, Ski Hill, Transportation Corridor, Transportation Greenspace, Treed Field, Urban Residential Utility Transfer Station, Water Feature.</span> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data

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