{ "type":"Feature", "properties":{ "fid":32610, "id":"4984", "uri":"https://geoconnex.us/ref/mainstems/4984", "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/1", "encompassing_mainstem_basins":"['https://geoconnex.us/ref/mainstems/1']", "name_at_outlet":"Kopta Slough", "name_at_outlet_gnis_id":226676, "head_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/12070922", "outlet_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/12079956", "head_nhdpv2huc12":"https://geoconnex.us/nhdplusv2/huc12/180201570701", "outlet_nhdpv2huc12":"https://geoconnex.us/nhdplusv2/huc12/180201570701", "lengthkm":9.3, "outlet_drainagearea_sqkm":74.4, "head_rf1id":null, "outlet_rf1id":null, "head_nhdpv1_comid":12070922, "outlet_nhdpv1_comid":12079956, "head_2020huc12":"180201570701", "outlet_2020huc12":"180201570701", "superseded":false, "new_mainstemid":"", "datasets":[ { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Specific conductance at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Specific conductance", "variableUnit":"microsiemens per centimeter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Specific conductance&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Calcium at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Calcium", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Calcium&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Aluminum at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Aluminum", "variableUnit":"Unknown", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Aluminum&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Bicarbonate at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Bicarbonate", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Bicarbonate&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Orthophosphate at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Orthophosphate", "variableUnit":"milligrams per liter as phosphate", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Orthophosphate&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Fluoride at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Fluoride", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Fluoride&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"pH at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"pH", "variableUnit":"Unknown", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=pH&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Boron at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Boron", "variableUnit":"Unknown", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Boron&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Iron at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Iron", "variableUnit":"percent", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Iron&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Carbon dioxide at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Carbon dioxide", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Carbon dioxide&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Total dissolved solids at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Total dissolved solids", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Total dissolved solids&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Temperature, water at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Temperature, water", "variableUnit":"degrees Celsius", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Temperature, water&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Sulfate at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Sulfate", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Sulfate&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Silica at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Silica", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Silica&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Alkalinity at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Alkalinity", "variableUnit":"milligrams per liter as calcium carbonate", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Alkalinity&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Potassium at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Potassium", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Potassium&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Chloride at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Chloride", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Chloride&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Hardness, Ca, Mg at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Hardness, Ca, Mg", "variableUnit":"milligrams per liter as calcium carbonate", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Hardness, Ca, Mg&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Arsenic at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Arsenic", "variableUnit":"parts per million", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Arsenic&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Manganese at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Manganese", "variableUnit":"micrograms per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Manganese&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Hardness, non-carbonate at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Hardness, non-carbonate", "variableUnit":"milligrams per liter as calcium carbonate", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Hardness, non-carbonate&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Sodium at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Sodium", "variableUnit":"milligrams per liter", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Sodium&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Inorganic nitrogen (nitrate and nitrite) at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Inorganic nitrogen (nitrate and nitrite)", "variableUnit":"milligrams per liter as nitrogen", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Inorganic nitrogen (nitrate and nitrite)&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Sodium, percent total cations at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Sodium, percent total cations", "variableUnit":"percent", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Sodium, percent total cations&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Magnesium at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Magnesium", "variableUnit":"percent", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Magnesium&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-395555122062001", "siteName":"USGS-395555122062001", "datasetDescription":"Nitrate at USGS-395555122062001", "type":"Well", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-CA/USGS-395555122062001/", "variableMeasured":"Nitrate", "variableUnit":"milligrams per liter as nitrogen", "measurementTechnique":"observation", "temporalCoverage":"1974-01-01T00:00:00Z/1974-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-395555122062001&CharacteristicName=Nitrate&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-122.1066537 39.9318244)" } ] }, "id":"4984", "geometry":{ "type":"LineString", "coordinates":[ [ -122.11395932089471, 39.979458404610625 ], [ -122.11047858756679, 39.980922604608345 ], [ -122.10643358757305, 39.97973167127678 ], [ -122.10120052091445, 39.9744904046183 ], [ -122.09671338758814, 39.96549587129884 ], [ -122.10237518757931, 39.93572560467847 ], [ -122.10475472090893, 39.93169847135138 ], [ -122.09600732092257, 39.91209660471521 ], [ -122.0930437875938, 39.910131804718226 ] ] }, "prev":"498389", "next":"49841", "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/4984?f=json" }, { "rel":"alternate", "type":"application/ld+json", "title":"This document as RDF (JSON-LD)", "href":"https://geoconnex.us/ref/mainstems/4984?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://geoconnex.us/ref/mainstems/4984?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/498389?f=json" }, { "rel":"next", "type":"application/json", "href":"https://reference.geoconnex.us/collections/mainstems/items/49841?f=json" } ] }