{
    "type":"Feature",
    "properties":{
        "fid":22833,
        "id":"2604580",
        "uri":"https://geoconnex.us/ref/mainstems/2604580",
        "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/2603094",
        "encompassing_mainstem_basins":"['https://geoconnex.us/ref/mainstems/2603094', 'https://geoconnex.us/ref/mainstems/2602412']",
        "name_at_outlet":"Mill Creek",
        "name_at_outlet_gnis_id":1374939,
        "head_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/1166415",
        "outlet_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/1166469",
        "head_nhdpv2huc12":"",
        "outlet_nhdpv2huc12":"",
        "lengthkm":14.3,
        "outlet_drainagearea_sqkm":55.7,
        "head_rf1id":null,
        "outlet_rf1id":null,
        "head_nhdpv1_comid":1166415,
        "outlet_nhdpv1_comid":1166469,
        "head_2020huc12":"",
        "outlet_2020huc12":"",
        "superseded":false,
        "new_mainstemid":"",
        "datasets":[
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"True color at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"True color",
                "variableUnit":"PCU",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/1999-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=True color&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Precipitation at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Precipitation",
                "variableUnit":"days",
                "measurementTechnique":"observation",
                "temporalCoverage":"2021-01-01T00:00:00Z/2024-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Precipitation&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"pH at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"pH",
                "variableUnit":"None",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/2024-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=pH&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Chloride at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Chloride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/1999-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Chloride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Total dissolved solids at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Total dissolved solids",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/1999-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Total dissolved solids&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Hardness, Ca, Mg at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Hardness, Ca, Mg",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/1999-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Hardness, Ca, Mg&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Depth at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Depth",
                "variableUnit":"ft",
                "measurementTechnique":"observation",
                "temporalCoverage":"2022-01-01T00:00:00Z/2024-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Depth&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Total suspended solids at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Total suspended solids",
                "variableUnit":"mg/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1998-01-01T00:00:00Z/1999-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Total suspended solids&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Flow at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Flow",
                "variableUnit":"ft3/sec",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/2024-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Flow&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Alkalinity, total at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Alkalinity, total",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/1999-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Alkalinity, total&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Specific conductance at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Specific conductance",
                "variableUnit":"umho/cm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/2024-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Specific conductance&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Depth, Secchi disk depth at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Depth, Secchi disk depth",
                "variableUnit":"m",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/2024-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Depth, Secchi disk depth&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Total volatile solids at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Total volatile solids",
                "variableUnit":"mg/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1998-01-01T00:00:00Z/1998-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Total volatile solids&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Wind direction (direction from, expressed 0-360 deg) at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Wind direction (direction from, expressed 0-360 deg)",
                "variableUnit":"Deg",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/1999-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Wind direction (direction from, expressed 0-360 deg)&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Temperature, sample at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Temperature, sample",
                "variableUnit":"deg C",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/2024-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Temperature, sample&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/TCEQMAIN-16126",
                "siteName":"TCEQMAIN-16126",
                "datasetDescription":"Oxygen at TCEQMAIN-16126",
                "type":"River/Stream",
                "url":"https://www.waterqualitydata.us/provider/STORET/TCEQMAIN/TCEQMAIN-16126/",
                "variableMeasured":"Oxygen",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1997-01-01T00:00:00Z/2024-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=TCEQMAIN-16126&CharacteristicName=Oxygen&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-94.2133 30.3744)"
            }
        ]
    },
    "id":"2604580",
    "geometry":{
        "type":"LineString",
        "coordinates":[
            [
                -94.17930109758817,
                30.438189219420696
            ],
            [
                -94.17498863092828,
                30.435807686090968
            ],
            [
                -94.17207649759935,
                30.430812686098736
            ],
            [
                -94.17170349759999,
                30.425610486106816
            ],
            [
                -94.18084689758587,
                30.41529348612278
            ],
            [
                -94.18346083091512,
                30.409379486131815
            ],
            [
                -94.19017443090458,
                30.406190286136958
            ],
            [
                -94.19389929756557,
                30.402086019476695
            ],
            [
                -94.19630163089516,
                30.3975240861503
            ],
            [
                -94.19450103089792,
                30.39381228615622
            ],
            [
                -94.19716383089383,
                30.38464348617032
            ],
            [
                -94.20168029755342,
                30.380240686177263
            ],
            [
                -94.20857683087615,
                30.37741728618156
            ],
            [
                -94.21037163087324,
                30.37464308618596
            ],
            [
                -94.2156568308651,
                30.373562219520924
            ],
            [
                -94.22214809752165,
                30.363244419536972
            ],
            [
                -94.22042529752441,
                30.358410019544436
            ],
            [
                -94.22227003085487,
                30.35332068621905
            ],
            [
                -94.22083889752372,
                30.349402886225022
            ],
            [
                -94.22196923085528,
                30.34348921956757
            ],
            [
                -94.21948463085914,
                30.34275768623539
            ],
            [
                -94.22038223085781,
                30.341954886236568
            ],
            [
                -94.21792263086162,
                30.339596219573664
            ]
        ]
    },
    "prev":"2604544",
    "next":"2604586",
    "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/2604580?f=json"
        },
        {
            "rel":"alternate",
            "type":"application/ld+json",
            "title":"This document as RDF (JSON-LD)",
            "href":"https://geoconnex.us/ref/mainstems/2604580?f=jsonld"
        },
        {
            "rel":"alternate",
            "type":"text/html",
            "title":"This document as HTML",
            "href":"https://geoconnex.us/ref/mainstems/2604580?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/2604544?f=json"
        },
        {
            "rel":"next",
            "type":"application/json",
            "href":"https://reference.geoconnex.us/collections/mainstems/items/2604586?f=json"
        }
    ]
}