{
    "type":"Feature",
    "properties":{
        "fid":24505,
        "id":"2660948",
        "uri":"https://geoconnex.us/ref/mainstems/2660948",
        "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/2660498",
        "encompassing_mainstem_basins":"['https://geoconnex.us/ref/mainstems/2660498', 'https://geoconnex.us/ref/mainstems/2659534', 'https://geoconnex.us/ref/mainstems/2659285', 'https://geoconnex.us/ref/mainstems/2659132']",
        "name_at_outlet":"West Tehuacana Creek",
        "name_at_outlet_gnis_id":1371241,
        "head_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/10656603",
        "outlet_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/10655905",
        "head_nhdpv2huc12":"https://geoconnex.us/nhdplusv2/huc12/121101070206",
        "outlet_nhdpv2huc12":"https://geoconnex.us/nhdplusv2/huc12/121101070206",
        "lengthkm":24.1,
        "outlet_drainagearea_sqkm":88.2,
        "head_rf1id":null,
        "outlet_rf1id":null,
        "head_nhdpv1_comid":10656603,
        "outlet_nhdpv1_comid":10655905,
        "head_2020huc12":"121101070206",
        "outlet_2020huc12":"121101070206",
        "superseded":false,
        "new_mainstemid":"",
        "datasets":[
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Silica at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Silica",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Silica&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Hardness, Ca, Mg at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Hardness, Ca, Mg",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Hardness, Ca, Mg&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Potassium at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Potassium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Potassium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Iron at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Iron",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Iron&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Sodium at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Sodium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Sodium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Temperature, water at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Temperature, water",
                "variableUnit":"deg C",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Temperature, water&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"pH at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"pH",
                "variableUnit":"None",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=pH&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Hardness, non-carbonate at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Hardness, non-carbonate",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Hardness, non-carbonate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Magnesium at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Magnesium",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Magnesium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Strontium at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Strontium",
                "variableUnit":"ug/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Strontium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Sulfate at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Sulfate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Sulfate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Fluoride at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Fluoride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Fluoride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Alkalinity at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Alkalinity",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Alkalinity&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Orthophosphate at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Orthophosphate",
                "variableUnit":"mg/l asPO4",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Orthophosphate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Nitrate at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Nitrate",
                "variableUnit":"mg/l as N",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Nitrate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Chloride at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Chloride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Chloride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Total dissolved solids at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Total dissolved solids",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Total dissolved solids&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Carbon dioxide at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Carbon dioxide",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Carbon dioxide&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Bicarbonate at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Bicarbonate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Bicarbonate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Calcium at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Calcium",
                "variableUnit":"mg/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Calcium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Sodium, percent total cations at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Sodium, percent total cations",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Sodium, percent total cations&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291035099115601",
                "siteName":"USGS-291035099115601",
                "datasetDescription":"Specific conductance at USGS-291035099115601",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291035099115601/",
                "variableMeasured":"Specific conductance",
                "variableUnit":"umho/cm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1972-01-01T00:00:00Z/1972-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291035099115601&CharacteristicName=Specific conductance&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.1992041 29.176628)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Chloride at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Chloride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1961-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Chloride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Sodium, percent total cations at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Sodium, percent total cations",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1952-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Sodium, percent total cations&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Sulfate at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Sulfate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1961-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Sulfate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Magnesium at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Magnesium",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1952-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Magnesium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Hardness, non-carbonate at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Hardness, non-carbonate",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1959-01-01T00:00:00Z/1960-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Hardness, non-carbonate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Silica at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Silica",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1952-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Silica&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Sodium plus potassium at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Sodium plus potassium",
                "variableUnit":"mg/l as Na",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1952-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Sodium plus potassium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Nitrate at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Nitrate",
                "variableUnit":"mg/l as N",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1952-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Nitrate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"pH at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"pH",
                "variableUnit":"None",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1961-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=pH&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Calcium at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Calcium",
                "variableUnit":"mg/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1952-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Calcium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Temperature, water at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Temperature, water",
                "variableUnit":"deg C",
                "measurementTechnique":"observation",
                "temporalCoverage":"1959-01-01T00:00:00Z/1959-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Temperature, water&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Alkalinity at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Alkalinity",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1961-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Alkalinity&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Fluoride at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Fluoride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1952-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Fluoride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Specific conductance at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Specific conductance",
                "variableUnit":"umho/cm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1961-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Specific conductance&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Carbon dioxide at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Carbon dioxide",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1961-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Carbon dioxide&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Total dissolved solids at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Total dissolved solids",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1952-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Total dissolved solids&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-291338099120001",
                "siteName":"USGS-291338099120001",
                "datasetDescription":"Hardness, Ca, Mg at USGS-291338099120001",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-TX/USGS-291338099120001/",
                "variableMeasured":"Hardness, Ca, Mg",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1952-01-01T00:00:00Z/1961-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-291338099120001&CharacteristicName=Hardness, Ca, Mg&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-99.2003156 29.22745965)"
            }
        ]
    },
    "id":"2660948",
    "geometry":{
        "type":"LineString",
        "coordinates":[
            [
                -99.2071342231173,
                29.280977087883528
            ],
            [
                -99.20472502312106,
                29.27648522122378
            ],
            [
                -99.20689122311768,
                29.271165087898762
            ],
            [
                -99.20453688978809,
                29.270020421233827
            ],
            [
                -99.20563202311968,
                29.26589322124019
            ],
            [
                -99.20361742312281,
                29.264083221242945
            ],
            [
                -99.20494962312074,
                29.262523487912077
            ],
            [
                -99.20110408979332,
                29.25968308791649
            ],
            [
                -99.20206888979186,
                29.25619782125526
            ],
            [
                -99.19890382313014,
                29.253746687925698
            ],
            [
                -99.1981384231313,
                29.24203908794395
            ],
            [
                -99.19471248980324,
                29.239496221281307
            ],
            [
                -99.19382228980464,
                29.23745628795097
            ],
            [
                -99.195127423136,
                29.23459008795558
            ],
            [
                -99.19222348980719,
                29.230854687961223
            ],
            [
                -99.19329328980547,
                29.22810308796565
            ],
            [
                -99.1913032898085,
                29.222441621307595
            ],
            [
                -99.19279148980632,
                29.220446421310754
            ],
            [
                -99.19216108980726,
                29.2156782879849
            ],
            [
                -99.19406708980432,
                29.212972087989122
            ],
            [
                -99.18784188981398,
                29.203873888003184
            ],
            [
                -99.18799348981372,
                29.195643621349323
            ],
            [
                -99.19221868980713,
                29.184339221366834
            ],
            [
                -99.19025782314344,
                29.181841421370653
            ],
            [
                -99.19049068980985,
                29.178471288042548
            ],
            [
                -99.18628242314969,
                29.17446128804881
            ],
            [
                -99.17967182315999,
                29.17120882138728
            ],
            [
                -99.17520108983359,
                29.16323248806618
            ],
            [
                -99.17530242316678,
                29.157019688075767
            ],
            [
                -99.16294542318593,
                29.148426688089238
            ],
            [
                -99.16297042318587,
                29.145423421427164
            ],
            [
                -99.15615222319639,
                29.138410088104703
            ],
            [
                -99.1501464232058,
                29.13886982143738
            ],
            [
                -99.14129208988618,
                29.127179221455588
            ],
            [
                -99.1349472232294,
                29.125827221457623
            ],
            [
                -99.13155262323471,
                29.122090621463325
            ],
            [
                -99.12411148991293,
                29.11913322146808
            ]
        ]
    },
    "prev":"2660941",
    "next":"2660949",
    "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/2660948?f=json"
        },
        {
            "rel":"alternate",
            "type":"application/ld+json",
            "title":"This document as RDF (JSON-LD)",
            "href":"https://geoconnex.us/ref/mainstems/2660948?f=jsonld"
        },
        {
            "rel":"alternate",
            "type":"text/html",
            "title":"This document as HTML",
            "href":"https://geoconnex.us/ref/mainstems/2660948?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/2660941?f=json"
        },
        {
            "rel":"next",
            "type":"application/json",
            "href":"https://reference.geoconnex.us/collections/mainstems/items/2660949?f=json"
        }
    ]
}