{
    "type":"Feature",
    "properties":{
        "fid":23645,
        "id":"2630268",
        "uri":"https://geoconnex.us/ref/mainstems/2630268",
        "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/2626898",
        "encompassing_mainstem_basins":"['https://geoconnex.us/ref/mainstems/2626898', 'https://geoconnex.us/ref/mainstems/2626080', 'https://geoconnex.us/ref/mainstems/2625789', 'https://geoconnex.us/ref/mainstems/2625170']",
        "name_at_outlet":"South Salado Creek",
        "name_at_outlet_gnis_id":1368760,
        "head_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/5588770",
        "outlet_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/5589060",
        "head_nhdpv2huc12":"",
        "outlet_nhdpv2huc12":"",
        "lengthkm":17.2,
        "outlet_drainagearea_sqkm":53.6,
        "head_rf1id":null,
        "outlet_rf1id":null,
        "head_nhdpv1_comid":5588770,
        "outlet_nhdpv1_comid":5589060,
        "head_2020huc12":"",
        "outlet_2020huc12":"",
        "superseded":false,
        "new_mainstemid":"",
        "datasets":[
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Chloride at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Chloride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Chloride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Stream flow, instantaneous at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Stream flow, instantaneous",
                "variableUnit":"ft3/s",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Stream flow, instantaneous&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Hardness, non-carbonate at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Hardness, non-carbonate",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Hardness, non-carbonate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Temperature, water at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Temperature, water",
                "variableUnit":"deg C",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Temperature, water&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Sodium at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Sodium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Sodium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"pH at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"pH",
                "variableUnit":"None",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=pH&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Carbon dioxide at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Carbon dioxide",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Carbon dioxide&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Calcium at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Calcium",
                "variableUnit":"mg/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Calcium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Bicarbonate at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Bicarbonate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Bicarbonate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Hardness, Ca, Mg at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Hardness, Ca, Mg",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Hardness, Ca, Mg&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Potassium at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Potassium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Potassium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Alkalinity at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Alkalinity",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Alkalinity&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Silica at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Silica",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Silica&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Sodium plus potassium at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Sodium plus potassium",
                "variableUnit":"mg/l as Na",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Sodium plus potassium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Sodium, percent total cations at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Sodium, percent total cations",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Sodium, percent total cations&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Total dissolved solids at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Total dissolved solids",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Total dissolved solids&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Sulfate at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Sulfate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Sulfate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Fluoride at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Fluoride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Fluoride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Magnesium at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Magnesium",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Magnesium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Carbonate at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Carbonate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Carbonate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-08104225",
                "siteName":"USGS-08104225",
                "datasetDescription":"Specific conductance at USGS-08104225",
                "type":"Stream",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-08104225/",
                "variableMeasured":"Specific conductance",
                "variableUnit":"umho/cm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1979-01-01T00:00:00Z/1979-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-08104225&CharacteristicName=Specific conductance&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-97.6941792 30.8271304)"
            }
        ]
    },
    "id":"2630268",
    "geometry":{
        "type":"LineString",
        "coordinates":[
            [
                -97.82314909193224,
                30.865996885423137
            ],
            [
                -97.81656389194251,
                30.861387885430307
            ],
            [
                -97.80902169195411,
                30.85863408543459
            ],
            [
                -97.80472522529419,
                30.84964868544863
            ],
            [
                -97.80501989196036,
                30.846303218787032
            ],
            [
                -97.79774602530495,
                30.842082485460317
            ],
            [
                -97.7967126253065,
                30.839194485464844
            ],
            [
                -97.78437269199247,
                30.829332485480048
            ],
            [
                -97.78262402532847,
                30.82532108548635
            ],
            [
                -97.77503422534022,
                30.82107588549282
            ],
            [
                -97.77307342534328,
                30.81715568549893
            ],
            [
                -97.7684278920172,
                30.816281218833797
            ],
            [
                -97.76559069202153,
                30.812933218838864
            ],
            [
                -97.75972442536403,
                30.811873885507204
            ],
            [
                -97.75706749203476,
                30.81347561883812
            ],
            [
                -97.74340909205603,
                30.81142201884119
            ],
            [
                -97.73733302539881,
                30.814681418836226
            ],
            [
                -97.72934182541121,
                30.815329618835158
            ],
            [
                -97.71856529209458,
                30.818454218830226
            ],
            [
                -97.71352309210238,
                30.8213678854925
            ],
            [
                -97.71198662543816,
                30.825447818819576
            ],
            [
                -97.70834942544371,
                30.82604601881866
            ],
            [
                -97.7059086254476,
                30.828751485481
            ],
            [
                -97.70057182545588,
                30.829465018813313
            ],
            [
                -97.6946486921317,
                30.827245485483434
            ],
            [
                -97.69292302546775,
                30.827888018815703
            ]
        ]
    },
    "prev":"2630251",
    "next":"2630281",
    "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/2630268?f=json"
        },
        {
            "rel":"alternate",
            "type":"application/ld+json",
            "title":"This document as RDF (JSON-LD)",
            "href":"https://geoconnex.us/ref/mainstems/2630268?f=jsonld"
        },
        {
            "rel":"alternate",
            "type":"text/html",
            "title":"This document as HTML",
            "href":"https://geoconnex.us/ref/mainstems/2630268?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/2630251?f=json"
        },
        {
            "rel":"next",
            "type":"application/json",
            "href":"https://reference.geoconnex.us/collections/mainstems/items/2630281?f=json"
        }
    ]
}