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Labels, historical features and model output remain separate from the source registry.

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Document search covers all news and source documents; it does not filter measurements.

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Measurements

5,974 records

Runtime samples are not the complete training dataset. Depth filters use source units; select one dataset first. Date filters include observations whose reported period overlaps the selected range.

Measurements
DatasetEntitySource fieldSource fileObserved atSource depthUnitValueUnitQuality flagsSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290809098232301Chlorideresult.csv2014-07-17Not reported / not verifiedNot reported / not verified26.4000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290809098232301Chlorideresult.csv2016-08-03Not reported / not verifiedNot reported / not verified20.8000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290809098232301Arsenicresult.csv2016-08-03Not reported / not verifiedNot reported / not verified0.4400ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290819103312601Inorganic nitrogen (nitrate and nitrite)result.csv2000-12-28Not reported / not verifiedNot reported / not verifiedNot reported / not verifiedNot reported / not verifiedsource_blank, source_detection_condition, censored_not_exact_measurement, source_unit_unspecifiedSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290834095384201Chlorideresult.csv2005-08-16Not reported / not verifiedNot reported / not verified235.0000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290834095384201Chlorideresult.csv2009-09-10Not reported / not verifiedNot reported / not verified324.0000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290834095384201Chlorideresult.csv2012-08-30Not reported / not verifiedNot reported / not verified284.0000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Arsenicresult.csv2008-07-28Not reported / not verifiedNot reported / not verified0.1400ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Chlorideresult.csv2008-07-28Not reported / not verifiedNot reported / not verified35.0000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Arsenicresult.csv2010-08-05Not reported / not verifiedNot reported / not verified0.0900ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Chlorideresult.csv2010-08-05Not reported / not verifiedNot reported / not verified35.1000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Chlorideresult.csv2012-08-07Not reported / not verifiedNot reported / not verified39.4000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Arsenicresult.csv2012-08-07Not reported / not verifiedNot reported / not verified2.6000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Arsenicresult.csv2014-07-17Not reported / not verifiedNot reported / not verified0.1300ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Chlorideresult.csv2014-07-17Not reported / not verifiedNot reported / not verified44.5000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Arsenicresult.csv2015-08-06Not reported / not verifiedNot reported / not verified0.1900ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290838098241401Chlorideresult.csv2015-08-06Not reported / not verifiedNot reported / not verified40.6000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290841098234001Chlorideresult.csv2008-07-28Not reported / not verifiedNot reported / not verified64.1000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290841098234001Arsenicresult.csv2008-07-28Not reported / not verifiedNot reported / not verified0.2000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290844098243601Chlorideresult.csv2008-07-28Not reported / not verifiedNot reported / not verified34.8000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290844098243601Arsenicresult.csv2008-07-28Not reported / not verifiedNot reported / not verified0.2800ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290846095385301Chlorideresult.csv2012-08-30Not reported / not verifiedNot reported / not verified696.0000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290847098083801Chlorideresult.csv2015-08-13Not reported / not verifiedNot reported / not verified28.2000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290847098083801Arsenicresult.csv2015-08-13Not reported / not verifiedNot reported / not verifiedNot reported / not verifiedNot reported / not verifiedsource_blank, source_detection_condition, censored_not_exact_measurement, source_unit_unspecifiedSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290847098083801Inorganic nitrogen (nitrate and nitrite)result.csv2015-08-13Not reported / not verifiedNot reported / not verifiedNot reported / not verifiedNot reported / not verifiedsource_blank, source_detection_condition, censored_not_exact_measurement, source_unit_unspecifiedSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Chlorideresult.csv2004-06-14Not reported / not verifiedNot reported / not verified44.7000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Inorganic nitrogen (nitrate and nitrite)result.csv2004-06-14Not reported / not verifiedNot reported / not verifiedNot reported / not verifiedNot reported / not verifiedsource_blank, source_detection_condition, censored_not_exact_measurement, source_unit_unspecifiedSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Arsenicresult.csv2004-06-14Not reported / not verifiedNot reported / not verified0.1000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Arsenicresult.csv2006-12-04Not reported / not verifiedNot reported / not verified0.1500ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Inorganic nitrogen (nitrate and nitrite)result.csv2006-12-04Not reported / not verifiedNot reported / not verifiedNot reported / not verifiedNot reported / not verifiedsource_blank, source_detection_condition, censored_not_exact_measurement, source_unit_unspecifiedSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Chlorideresult.csv2006-12-04Not reported / not verifiedNot reported / not verified43.8000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Chlorideresult.csv2008-07-21Not reported / not verifiedNot reported / not verified44.2000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Arsenicresult.csv2008-07-21Not reported / not verifiedNot reported / not verified0.2700ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Arsenicresult.csv2010-08-06Not reported / not verifiedNot reported / not verified0.1200ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Chlorideresult.csv2010-08-06Not reported / not verifiedNot reported / not verified42.5000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Arsenicresult.csv2012-08-08Not reported / not verifiedNot reported / not verified0.1400ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Chlorideresult.csv2012-08-08Not reported / not verifiedNot reported / not verified42.4000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Arsenicresult.csv2014-07-16Not reported / not verifiedNot reported / not verified0.1700ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Chlorideresult.csv2014-07-16Not reported / not verifiedNot reported / not verified45.5000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-290849098174001Arsenicresult.csv2016-08-02Not reported / not verifiedNot reported / not verified0.1500ug/lSourceExact record

USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry

U.S. Geological Survey, NWIS records retrieved through the USGS/EPA Water Quality Portal; indicate normalization changes.

Historical WQX 2.2 NWIS response for Texas groundwater chemistry. This profile excludes USGS additions after March 11, 2024; requested date bounds do not establish actual coverage. Concentration fractions, analytical methods, detection conditions, quantitation limits, qualifiers and QC samples must be reviewed before training. Non-detects are null, not zero or the quantitation limit. Source agency/site/activity identifiers do not reconcile physical wells. Acquisition is not historical availability. Source clock time and timezone code are retained without inventing a UTC instant.

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Source documents ↗

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FORCE 2020 · LAS ↗

118 Well · 7,552 records

Bormann, P.; Aursand, P.; Dilib, F.; Manral, S.; Dischington, P. (2020). FORCE 2020 well log and lithofacies dataset, DOI 10.5281/zenodo.4351156. Source Norwegian government logs under NLOD 2.0. Normalized and sampled by Wellficent.

Runtime sample is for browsing. Full source-row normalized training data must use external importer output.

Data gaps and limitations

Unknown units remain unknown. Undated depth logs are not automatically defective records.

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Data gaps and limitations
Dataset libraryRuntime recordsSource documentsMissing valuesReported values without a unitRecords without an observation date
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry5,974059300

Data coverage

Counts describe source samples, not unique physical wells.

JSON ↗
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry · 5,974

Reported values: 5,381 · Missing values: 593 · Flagged values: 1,285

Channel preview is limited to 50 entries; use filters to access all records.

Data coverage
EntitySource fieldSource fileUnitSource depth · Unitrecords
USGS-260204097443701Arsenicresult.csvug/lNot reported / not verified1
USGS-260204097443701Chlorideresult.csvmg/lNot reported / not verified1
USGS-260204097443701Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-271315097473201Arsenicresult.csvug/lNot reported / not verified1
USGS-271315097473201Chlorideresult.csvmg/lNot reported / not verified1
USGS-271315097473201Inorganic nitrogen (nitrate and nitrite)result.csvmg/l as NNot reported / not verified1
USGS-271505098073401Arsenicresult.csvug/lNot reported / not verified1
USGS-271505098073401Chlorideresult.csvmg/lNot reported / not verified1
USGS-271505098073401Inorganic nitrogen (nitrate and nitrite)result.csvmg/l as NNot reported / not verified1
USGS-271841098402801Inorganic nitrogen (nitrate and nitrite)result.csvmg/l as NNot reported / not verified1
USGS-271843098401101Arsenicresult.csvug/lNot reported / not verified1
USGS-271843098401101Chlorideresult.csvmg/lNot reported / not verified1
USGS-271843098401101Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-272638098532301Arsenicresult.csvug/lNot reported / not verified1
USGS-272638098532301Chlorideresult.csvmg/lNot reported / not verified1
USGS-272638098532301Inorganic nitrogen (nitrate and nitrite)result.csvmg/l as NNot reported / not verified1
USGS-274439098144401Arsenicresult.csvug/lNot reported / not verified1
USGS-274439098144401Chlorideresult.csvmg/lNot reported / not verified1
USGS-274439098144401Inorganic nitrogen (nitrate and nitrite)result.csvmg/l as NNot reported / not verified1
USGS-275725097562701Arsenicresult.csvug/lNot reported / not verified1
USGS-275725097562701Chlorideresult.csvmg/lNot reported / not verified1
USGS-275725097562701Inorganic nitrogen (nitrate and nitrite)result.csvmg/l as NNot reported / not verified1
USGS-280232099210601Arsenicresult.csvug/lNot reported / not verified1
USGS-280232099210601Chlorideresult.csvmg/lNot reported / not verified1
USGS-280232099210601Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-280951096593801Arsenicresult.csvug/lNot reported / not verified1
USGS-280951096593801Chlorideresult.csvmg/lNot reported / not verified1
USGS-280951096593801Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-281433097191300Arsenicresult.csvug/lNot reported / not verified1
USGS-281433097191300Chlorideresult.csvmg/lNot reported / not verified1
USGS-281433097191300Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-281546099234601Arsenicresult.csvug/lNot reported / not verified1
USGS-281546099234601Chlorideresult.csvmg/lNot reported / not verified1
USGS-281546099234601Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-281621100040401Arsenicresult.csvug/lNot reported / not verified2
USGS-281621100040401Chlorideresult.csvmg/lNot reported / not verified2
USGS-281621100040401Inorganic nitrogen (nitrate and nitrite)result.csvmg/l as NNot reported / not verified2
USGS-282009099044001Arsenicresult.csvNot reported / not verifiedNot reported / not verified1
USGS-282009099044001Chlorideresult.csvmg/lNot reported / not verified1
USGS-282009099044001Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-282605099141101Arsenicresult.csvNot reported / not verifiedNot reported / not verified1
USGS-282605099141101Chlorideresult.csvmg/lNot reported / not verified1
USGS-282605099141101Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-282608099455301Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-282716099545101Arsenicresult.csvug/lNot reported / not verified1
USGS-282716099545101Chlorideresult.csvmg/lNot reported / not verified1
USGS-282716099545101Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1
USGS-282733098325701Arsenicresult.csvNot reported / not verifiedNot reported / not verified1
USGS-282733098325701Chlorideresult.csvmg/lNot reported / not verified1
USGS-282733098325701Inorganic nitrogen (nitrate and nitrite)result.csvNot reported / not verifiedNot reported / not verified1

Historical WQX 2.2 NWIS response for Texas groundwater chemistry. This profile excludes USGS additions after March 11, 2024; requested date bounds do not establish actual coverage. Concentration fractions, analytical methods, detection conditions, quantitation limits, qualifiers and QC samples must be reviewed before training. Non-detects are null, not zero or the quantitation limit. Source agency/site/activity identifiers do not reconcile physical wells. Acquisition is not historical availability. Source clock time and timezone code are retained without inventing a UTC instant.

Actual source first/last and every Nth row per entity/channel/unit/pass; no interpolation or replacement of nulls.

Dataset library

Browse all datasets →

USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry ↗

U.S. Geological Survey, NWIS records retrieved through the USGS/EPA Water Quality Portal; indicate normalization changes.

Historical WQX 2.2 NWIS response for Texas groundwater chemistry. This profile excludes USGS additions after March 11, 2024; requested date bounds do not establish actual coverage. Concentration fractions, analytical methods, detection conditions, quantitation limits, qualifiers and QC samples must be reviewed before training. Non-detects are null, not zero or the quantitation limit. Source agency/site/activity identifiers do not reconcile physical wells. Acquisition is not historical availability. Source clock time and timezone code are retained without inventing a UTC instant.

Source: usgs-texas-groundwater-chemistry-wqp22 ↗

imported · US public domain for USGS-authored data

U.S. Geological Survey, NWIS records retrieved through the USGS/EPA Water Quality Portal; indicate normalization changes.

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