{
    "type":"Feature",
    "properties":{
        "fid":11999,
        "id":"515050",
        "uri":"https://geoconnex.us/ref/mainstems/515050",
        "featuretype":"['https://www.opengis.net/def/schema/hy_features/hyf/HY_FlowPath', 'https://www.opengis.net/def/schema/hy_features/hyf/HY_WaterBody']",
        "downstream_mainstem_id":"https://geoconnex.us/ref/mainstems/452593",
        "encompassing_mainstem_basins":"['https://geoconnex.us/ref/mainstems/452593', 'https://geoconnex.us/ref/mainstems/373711', 'https://geoconnex.us/ref/mainstems/312091']",
        "name_at_outlet":"Thurman Creek",
        "name_at_outlet_gnis_id":419708,
        "head_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/5802082",
        "outlet_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/5802234",
        "head_nhdpv2huc12":"",
        "outlet_nhdpv2huc12":"",
        "lengthkm":19.7,
        "outlet_drainagearea_sqkm":79.7,
        "head_rf1id":null,
        "outlet_rf1id":null,
        "head_nhdpv1_comid":5802082,
        "outlet_nhdpv1_comid":5802234,
        "head_2020huc12":"",
        "outlet_2020huc12":"",
        "superseded":false,
        "new_mainstemid":"",
        "datasets":[
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Manganese at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Manganese",
                "variableUnit":"ug/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Manganese&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Phenols at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Phenols",
                "variableUnit":"ug/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Phenols&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Silica at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Silica",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Silica&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Aluminum at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Aluminum",
                "variableUnit":"Unknown",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Aluminum&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Barium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Barium",
                "variableUnit":"ug/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Barium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Specific conductance at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Specific conductance",
                "variableUnit":"umho/cm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Specific conductance&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Chloride at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Chloride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Chloride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Total dissolved solids at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Total dissolved solids",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Total dissolved solids&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Vanadium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Vanadium",
                "variableUnit":"mg/kg",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Vanadium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Calcium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Calcium",
                "variableUnit":"mg/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Calcium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"pH at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"pH",
                "variableUnit":"None",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=pH&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Magnesium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Magnesium",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Magnesium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Ammonia and ammonium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Ammonia and ammonium",
                "variableUnit":"Unknown",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Ammonia and ammonium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Alkalinity at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Alkalinity",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Alkalinity&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Cyanide at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Cyanide",
                "variableUnit":"Unknown",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Cyanide&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Boron at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Boron",
                "variableUnit":"Unknown",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Boron&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Chromium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Chromium",
                "variableUnit":"ppb",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Chromium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Temperature, water at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Temperature, water",
                "variableUnit":"deg C",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Temperature, water&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Sulfate at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Sulfate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Sulfate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Carbon dioxide at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Carbon dioxide",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Carbon dioxide&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Copper at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Copper",
                "variableUnit":"Unknown",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Copper&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Selenium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Selenium",
                "variableUnit":"ug/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Selenium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Cadmium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Cadmium",
                "variableUnit":"ug/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Cadmium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Nickel at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Nickel",
                "variableUnit":"ppm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Nickel&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Potassium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Potassium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Potassium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Lead at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Lead",
                "variableUnit":"ug/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Lead&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Cobalt at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Cobalt",
                "variableUnit":"mg/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Cobalt&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Phosphorus at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Phosphorus",
                "variableUnit":"ppb",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Phosphorus&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Fluoride at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Fluoride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Fluoride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Flow rate, instantaneous at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Flow rate, instantaneous",
                "variableUnit":"gal/min",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Flow rate, instantaneous&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Silver at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Silver",
                "variableUnit":"Unknown",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Silver&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Zinc at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Zinc",
                "variableUnit":"Unknown",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Zinc&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Strontium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Strontium",
                "variableUnit":"ug/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Strontium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Iron at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Iron",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Iron&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Mercury at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Mercury",
                "variableUnit":"Unknown",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Mercury&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Beryllium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Beryllium",
                "variableUnit":"ppm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Beryllium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Inorganic nitrogen (nitrate and nitrite) at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Inorganic nitrogen (nitrate and nitrite)",
                "variableUnit":"mg/l as N",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Inorganic nitrogen (nitrate and nitrite)&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Arsenic at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Arsenic",
                "variableUnit":"ppm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Arsenic&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-400929091131301",
                "siteName":"USGS-400929091131301",
                "datasetDescription":"Sodium at USGS-400929091131301",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-IL/USGS-400929091131301/",
                "variableMeasured":"Sodium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1987-01-01T00:00:00Z/1987-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-400929091131301&CharacteristicName=Sodium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-91.2204208 40.15810167)"
            }
        ]
    },
    "id":"515050",
    "geometry":{
        "type":"LineString",
        "coordinates":[
            [
                -91.06654510241987,
                40.16362247099153
            ],
            [
                -91.07665570240414,
                40.16076820432924
            ],
            [
                -91.08974370238383,
                40.16358740432482
            ],
            [
                -91.09713876903902,
                40.16340680432512
            ],
            [
                -91.10444570236092,
                40.15949680433113
            ],
            [
                -91.11687850234165,
                40.16347960432496
            ],
            [
                -91.12397550233068,
                40.16249660432653
            ],
            [
                -91.13056516898718,
                40.16357207099146
            ],
            [
                -91.13238416898429,
                40.159637070997725
            ],
            [
                -91.13846676897475,
                40.15915647099839
            ],
            [
                -91.14368416896679,
                40.15661660433564
            ],
            [
                -91.15024416895659,
                40.15812567099997
            ],
            [
                -91.15581890228123,
                40.155333471004326
            ],
            [
                -91.15996370227487,
                40.156316204336214
            ],
            [
                -91.16870296892797,
                40.16228487099344
            ],
            [
                -91.175741168917,
                40.16381520432453
            ],
            [
                -91.18080930224244,
                40.16234887099342
            ],
            [
                -91.18587936890123,
                40.163376070991674
            ],
            [
                -91.18879930223005,
                40.16051507099628
            ],
            [
                -91.19374930222233,
                40.16080987099577
            ],
            [
                -91.19753436888323,
                40.158771670998874
            ],
            [
                -91.19836316888194,
                40.15270847100847
            ],
            [
                -91.20203090220957,
                40.15325540434091
            ],
            [
                -91.20658930220247,
                40.15027827101223
            ],
            [
                -91.20828896886644,
                40.15064320434501
            ],
            [
                -91.20977450219755,
                40.14613527101866
            ],
            [
                -91.2138577021912,
                40.145194404353326
            ],
            [
                -91.2148089021897,
                40.14297447102343
            ],
            [
                -91.21960730218228,
                40.14217020435806
            ],
            [
                -91.22111990217985,
                40.13635800436713
            ],
            [
                -91.22886650216793,
                40.13401800437065
            ],
            [
                -91.23466930215892,
                40.12781287104703
            ]
        ]
    },
    "prev":"515046",
    "next":"515066",
    "links":[
        {
            "type":"application/json",
            "rel":"root",
            "title":"The landing page of this server as JSON",
            "href":"https://reference.geoconnex.us?f=json"
        },
        {
            "type":"text/html",
            "rel":"root",
            "title":"The landing page of this server as HTML",
            "href":"https://reference.geoconnex.us?f=html"
        },
        {
            "rel":"self",
            "type":"application/geo+json",
            "title":"This document as JSON",
            "href":"https://geoconnex.us/ref/mainstems/515050?f=json"
        },
        {
            "rel":"alternate",
            "type":"application/ld+json",
            "title":"This document as RDF (JSON-LD)",
            "href":"https://geoconnex.us/ref/mainstems/515050?f=jsonld"
        },
        {
            "rel":"alternate",
            "type":"text/html",
            "title":"This document as HTML",
            "href":"https://geoconnex.us/ref/mainstems/515050?f=html"
        },
        {
            "rel":"collection",
            "type":"application/json",
            "title":"Reference Mainstems",
            "href":"https://reference.geoconnex.us/collections/mainstems"
        },
        {
            "rel":"prev",
            "type":"application/json",
            "href":"https://reference.geoconnex.us/collections/mainstems/items/515046?f=json"
        },
        {
            "rel":"next",
            "type":"application/json",
            "href":"https://reference.geoconnex.us/collections/mainstems/items/515066?f=json"
        }
    ]
}