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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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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 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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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>
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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) 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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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 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 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=8' 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 Natural Heritage System  was derived by merging the Functional NHS with the Targeted Terrestrial NHS. Please see these individual layers for more information with regards to their development.</span></div><div><span style='text-align:justify;'><br /></span></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><br /></div> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Climate Gauges
Conservation Ontario
Conservation Ontario — 2020-06-22 <div><div style='color:rgb(76, 76, 76); font-family:&amp; font-size:15px; font-style:normal; font-variant:normal; font-weight:400; letter-spacing:normal; text-align:left; text-decoration:none; text-indent:0px; text-transform:none; word-spacing:0px;'><span style='text-align:justify; color:rgb(27, 54, 54); text-transform:none; text-indent:0px; letter-spacing:normal; font-family:&quot;Avenir Next&quot;,&quot;Avenir Next&quot;; word-spacing:0px; display:inline !important; background-color:rgb(255, 255, 255);'></span><a href='https://metadata.cacore.ca/Public/Details/id=1018' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </div><div style='color:rgb(76, 76, 76); font-family:&amp; font-size:15px; font-style:normal; font-variant:normal; font-weight:400; letter-spacing:normal; text-align:left; text-decoration:none; text-indent:0px; text-transform:none; word-spacing:0px;'><br /></div></div><div></div><div>The location of CLOCA's climate gauges of which monitor barometric pressure, precipitation, air temperature, humidity and wind direction and speed.</div> https://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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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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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
City of Pickering Open Data Portal Translation missing: fr.blacklight.search.logo
CLOCA Surface Water Gauges
Conservation Ontario
Conservation Ontario — 2020-06-22 <div style='text-align: left; color: rgb(76, 76, 76); text-transform: none; text-indent: 0px; letter-spacing: normal; font-variant: normal; word-spacing: 0px;'><a href='https://metadata.cacore.ca/Public/Details/id=1017' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </div><div><u></u><br /></div><div>The location of CLOCA's surface water gauges of which monitor water level, water elevation, water temperature and stream discharge.</div> https://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Ecological Land Classification
Conservation Ontario
Conservation Ontario — 2017-12-20 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=11' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </span></div><div><span style='text-align:justify;'></span><br /></div>CLOCA's Ecological Land Classification (ELC) mapping is a provincial standard in classifying and mapping natural communities and was developed by the Ministry of Natural Resources (MNR) in 1998. CLOCA's ELC mapping has been completed to the Community Series level of detail, which is defined as the smallest ecological unit of mapping (0.5ha) that can be interpreted from aerial photography at a scale of 1:10,000. For the purposes of ELC mapping and subsequently the development of a Natural Heritage System, polygons under 0.5ha have not been mapped unless they have been ground-truthed and have been included as a rare community type (i.e. Old Growth Forest, Fen). 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 Drainage
Conservation Ontario
Conservation Ontario — 2020-04-01 <div><a href='https://metadata.cacore.ca/Public/Details/id=6' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> <br /></div><div><br /></div><div>The first iteration of Drainage was obtained from First Base Solutions in 2000. CLOCA kept receiving consecutive updates in 2002, 2005, 2008 and 2010. In 2011 data was updated to meet the WRIP Hydrographic Specifications. The 2010 drainage and 2008 headwater portion of the dataset were merged to obtain current Drainage dataset.</div><div>Drainage was divided into 3 sub-types in the field named ‘EdgeType’, with flow and shoreline being the main classes:</div><div>- Flow;</div><div>- Shoreline;</div><div>- Other.</div><div>Other hydrographic-related features are captured and included under the ‘Other’ class. The feature types included in these feature classes are not water features themselves, but may pose impediments or hazards to water flow or navigation. These features usually occur on top of waterbody or watercourse features, which continue underneath or around them.</div><div><br /></div><div>Since the 2011 drainage update additional updates were performed:</div><div>-The drainage segments falling within Natural Heritage System were coded as NHS – 2013;</div><div>-The Stream Order updates (2016) - the updates were performed for the RIPARIAN  analysis.</div><div><br /></div><div>Please see <a href='https://camaps.maps.arcgis.com/sharing/rest/content/items/104d4d67334542cb99281f358f940891/data' rel='nofollow ugc' target='_blank'>Drainage Specifications</a> for Code descriptions.</div> https://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA - Integrated Water Monitoring Program - Aquatic Monitoring Stations
Conservation Ontario
Conservation Ontario — 2020-03-12 <div><a href='https://metadata.cacore.ca/Public/Details/id=20' rel='nofollow ugc' target='_blank'>Click to view Metadata</a> </div><div><u></u><br /></div><div>The Integrated Monitoring Program includes 36 long-term aquatic monitoring locations. These sites are used to track changes in stream health over time. At each location, five ecological attributes are measured as proxies for stream health: fish and benthic invertebrate communities, water quality, temperature, and flows. Sites were selected to be evenly distributed across the CLOCA jurisdiction taking into account representing watershed boundaries, stream order, and varying amounts of anthropogenic stressors. CLOCA does monitor additional aquatic sites but these are a part of different projects that tend to be shorter in duration and more specific to one of the ecological attributes.</div> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Damage Centres
Conservation Ontario
Conservation Ontario — 2017-12-20 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=18' 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;'>A damage centre is a polygon that is based on the extents of current floodlines and indicates a potential area of significant structural damage due to flooding. Generally these areas are created where at least one structure (i.e. building) is found to be within the floodplain.</span> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Ecologically Significant Groundwater Recharge Areas
Conservation Ontario
Conservation Ontario — 2017-12-21 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=5' 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;'>Ecologically Significant Groundwater Recharge Areas (ESGRA) are responsible for supporting groundwater discharge that helps sustain sensitive features like coldwater streams and wetlands. The ESGRA delineation methodology employs particle tracking techniques to identify, visualize and quantify the groundwater flow paths between the ecological feature and the recharge area. A groundwater model (MODFLOW) is used to determine groundwater heads and fluxes between all model cells. Virtual “particles” are released in the model and traced or tracked through the flow field to delineate three-dimensional pathways. Particle track endpoints are grouped and analyzed to establish significant amount of recharge in the area that feeds the ecological features. This 2014 model result was built directly on an earlier SWP study to estimate groundwater recharge in the CLOCA watersheds (Earthfx, 2008) and on a study of the rates and directions of groundwater flow across the entire Regional Municipality of Durham and the CLOCA watersheds in particular (Earthfx, 2010).</span></div><div><span style='text-align:justify;'><br /></span></div><div><a href='https://03879a07-372c-443e-997e-ae65078d7559.filesusr.com/ugd/b3995f_76d5fa6c14f6425188dee8926b34add7.pdf' rel='nofollow ugc' target='_blank'>ESGRA Final Report</a><u></u><br /></div> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data
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CLOCA Regulated Areas
Conservation Ontario
Conservation Ontario — 2017-12-21 <div><span style='text-align:justify;'><a href='https://metadata.cacore.ca/Public/Details/id=15' target='_blank' rel='nofollow ugc noopener noreferrer'>Click to view Metadata</a> </span></div><div><span style='text-align:justify;'><br /></span></div><div><p><font color='#ff0000'><b><span>NOTICE: This mapping was prepared pursuant to the former Ontario Regulation 42/06, which was revoked on April 1, 2024, and does not fully illustrate areas subject to regulation pursuant Ontario 41/24, which is now in effect. </span><span style='font-family:Aptos, sans-serif; font-size:11pt;'>New mapping conforming to Ontario Regulation 41/24 will follow at a later date following a public notice period.  Contact CLOCA staff to verify the current approximate extent of the regulated area.</span></b></font></p></div><div><u></u><br /></div><span style='text-align:justify;'>For the purpose of administering Ontario Regulation 42/06, the Central Lake Ontario Conservation Authority’s (CLOCA) Generic Regulation Limit (also known as Regulation Limit) is created by combining CLOCA’s Hazard Area with Regulation Allowance, with the regulation limit areas of ELC Wetlands of 0.5ha to 2ha and ELC Wetlands of 2ha and greater, Evaluated Wetlands of 0.5ha to 2ha and Evaluated Wetlands of 2ha and greater, and all Provincially Significant Wetlands.</span><br /><br /><span style='text-align:justify;'>As wetlands are under review by Planning and Natural Heritage staff throughout the year, updates are made to CLOCA’s spatial data as required. Planning, Natural Heritage and Engineering staff are also required to re-evaluate the Wetlands Reductions layers during the review phase of each yearly update of the Generic Regulation, in order to ensure that the layers are still applicable and that there have been no additional additions or reductions.</span> http://camaps.maps.arcgis.com/sharing/rest/content/items/20586dab57ce40fd9b102d97c144302c/data

Instructions pour la recherche cartographique

1.Activez le filtre cartographique en cliquant sur le bouton « Limiter à la zone sur la carte ».
2.Déplacez la carte pour afficher la zone qui vous intéresse. Maintenez la touche Maj enfoncée et cliquez pour encadrer une zone spécifique à agrandir sur la carte. Les résultats de la recherche changeront à mesure que vous déplacerez la carte.
3.Pour voir les détails d’un emplacement, vous pouvez cliquer soit sur un élément dans les résultats de recherche, soit sur l’épingle d’un emplacement sur la carte et sur le lien associé au titre.
Remarque : Les groupes servent à donner un aperçu visuel de l’emplacement des données. Puisqu’un maximum de 50 emplacements peut s’afficher sur la carte, il est possible que vous n’obteniez pas un portrait exact du nombre total de résultats de recherche.

(source : City of Pickering Open Data Portal) AND (auteur : Conservation Ontario)

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