20210929 14423400 1.0 FALSE GL_ContaminantsWaterSediment_SedimentQualtiy2 002 413189.051200 1617690.219500 -711171.126800 18929.496600 1 Projected GCS_North_American_1983 Linear Unit: Meter (1.000000) NAD_1983_Canada_Atlas_Lambert <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.5.0'><WKT>PROJCS["NAD_1983_Canada_Atlas_Lambert",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-95.0],PARAMETER["Standard_Parallel_1",49.0],PARAMETER["Standard_Parallel_2",77.0],PARAMETER["Latitude_Of_Origin",49.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3978]]</WKT><XOrigin>-34655800</XOrigin><YOrigin>-30001600</YOrigin><XYScale>9999.9995250255088</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.0010000000474974513</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>3978</WKID><LatestWKID>3978</LatestWKID></ProjectedCoordinateSystem> 20260526 15580200 20260526 15580200 150000000 5000 ItemDescription North American Profile of ISO19115 2003 Esri ArcGIS 13.5.5.57366 Great Lakes Nearshore Waters: Sediment Quality 1 -90.111296 -73.642226 49.004945 40.613803 Summary of sediment quality data, based on median contaminant levels, at provincial survey stations in Canadian Great Lakes nearshore waters; data is part of the Overall Assessment of the State of Nearshore Waters. Great Lakes Lake Superior Lake Huron Lake Erie Lake Ontario Nearshore Framework water quality ecosystem health cumulative stress Contaminants in Water & Sediment Sediment Quality <DIV STYLE="text-align:Left;font-size:12pt"><DIV><DIV>This data was derived as part of the Overall Assessment of the State of Nearshore Waters. Contaminants in bottom sediment have the potential to be released into the water column and enter the food chain, which can lead to toxic and reproductive effects in species, as well as bioaccumulation in aquatic life. Sediment quality is assessed using the severity of median contaminant levels in sediment for four categories (metals, organochlorine pesticides, PAHs and PCBs) at Provincial long-term monitoring stations in each Regional Unit.Median results for PCBs, metals and PAHs at each index station were calculated, and compared to Provincial and Federal guidelines, for data in the most recent sampling years of the MECP Great Lakes Nearshore Index Stations. In Lakes Erie and Ontario, these include 2007, 2010, 2014 & 2016, in Lake Superior, 2011 and Lake Huron 2009, 2011 & 2015.Provincial guidelines establish three levels of effect:<UL STYLE="margin:0 0 0 0;padding:0 0 0 0;"><LI>No Effect Level (NEL)indicates concentrations of a chemical in sediment that has no effect on fish or sediment-dwelling organisms; at this level, negligible transfer of chemicals through the food chain and no effect on water quality is expected. Sediment meeting the NEL are considered clean.</LI><LI>Lowest Effect Level (LEL)indicates a level of contamination that can be tolerated by the majority of sediment-dwelling organisms; sediment that meet the LEL are considered clean to marginally polluted.</LI><LI>Severe Effect Level (SEL)indicates a level of contamination that is expected to be detrimental to the majority of sediment-dwelling organisms; sediment exceeding the SEL are considered to be heavily contaminated.</LI></UL>Federally, the Canadian Council of Ministers of the Environment (CCME) guidelines refer to a Threshold Effect Level (TEL)that represents the concentration below which adverse biological effects are expected to rarely occur and a Probable Effect Level (PEL)above which adverse effects are expected to occur frequently. The PEL is recommended as an additional sediment quality assessment tool that can be useful for identifying sediments in which adverse biological effects are more likely to occur (CCME, 2001). The Index Station locations are from the Ontario Ministry of Environment, Conservation and Parks Great Lakes Nearshore Index Station Network.Low Stress: PCBs < No Effect Level, Organochlorine pesticides & PAHs < Lowest Effect Levels, Metals < Probable or Severe Effect Levels; Moderate Stress: PCBs > No Effect Level OR Organochlorine pesticides & PAHs > Lowest Effect Levels OR Metals > Probable Effect Levels but < Severe Effect Levels; High Stress: Any contaminant > Severe Effect Level</DIV></DIV></DIV> Environment and Climate Change Canada (ECCC) - Strategic Policy Branch - RDGO Ontario Ministry of Environment, Conservation and Parks Great Lakes Nearshore Index Station Network: https://data.ontario.ca/dataset/sediment-chemistry-great-lakes-nearshore-areas File Geodatabase Feature Class dataset EPSG 7.1(10.0.0) 0 Simple FALSE 0 TRUE FALSE GL_ContaminantsWaterSediment_SedimentQualtiy2 Feature Class 0 OBJECTID OBJECTID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. RegUnit_ID Regional Unit ID String 8000 0 0 StationNum Station Number Double 8 0 0 StationName Station Name String 8000 0 0 Latitude Latitude Double 8 0 0 PCBs PCBs String 8000 0 0 Metals Metals String 8000 0 0 PAHs PAHs String 8000 0 0 Longitude Longitude Double 8 0 0 Shape Shape Geometry 0 0 0 Feature geometry. Esri Coordinates defining the features. SedimentSummary Sediment Quality String 200 0 0 OrganoPesticides Organochlorine Pesticides String 8000 0 0 AssessmentYear Assessment Year String 4 0 0 AssessmentCategory Assessment Category String 8000 0 0 MonitoringProgram Monitoring Program String 8000 0 0 NearshoreAssessment Nearshore Assessment String 8000 0 0 StationYears Station Year String 8000 0 0 Score Score String 8000 0 0 Notes Notes String 8000 0 0 SedimenentSummary SedimenentSummary String 8000 0 0 20260526