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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-294721095361001Arsenicresult.csv2010-04-07Not reported / not verifiedNot reported / not verified1.9000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294721095361001Chlorideresult.csv2010-04-07Not reported / not verifiedNot reported / not verified35.9000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294723095370501Chlorideresult.csv2004-08-31Not reported / not verifiedNot reported / not verified49.4000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294723095370501Arsenicresult.csv2010-04-07Not reported / not verifiedNot reported / not verified3.2000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294723095370501Chlorideresult.csv2010-04-07Not reported / not verifiedNot reported / not verified38.7000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294723095382601Chlorideresult.csv2010-04-07Not reported / not verifiedNot reported / not verified40.9000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294723095382601Arsenicresult.csv2010-04-07Not reported / not verifiedNot reported / not verified3.0000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294724095351401Chlorideresult.csv2013-07-23Not reported / not verifiedNot reported / not verified32.4000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294724095351401Arsenicresult.csv2013-07-23Not reported / not verifiedNot reported / not verified2.4000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294731095414201Arsenicresult.csv2010-04-08Not reported / not verifiedNot reported / not verified4.7000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294731095414201Chlorideresult.csv2010-04-08Not reported / not verifiedNot reported / not verified49.8000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294731095414201Arsenicresult.csv2014-06-09Not reported / not verifiedNot reported / not verified4.0000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294731095414201Chlorideresult.csv2014-06-09Not reported / not verifiedNot reported / not verified49.7000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294735095344001Chlorideresult.csv2003-08-13Not reported / not verifiedNot reported / not verified39.4000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294735095344001Arsenicresult.csv2010-04-06Not reported / not verifiedNot reported / not verified3.4000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294735095344001Chlorideresult.csv2010-04-06Not reported / not verifiedNot reported / not verified38.2000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294739098075301Inorganic nitrogen (nitrate and nitrite)result.csv2000-06-09Not reported / not verifiedNot reported / not verified0.8300mg/l as Nsource_not_acceptedSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294739098075301Chlorideresult.csv2000-06-09Not reported / not verifiedNot reported / not verified7.4700mg/lsource_not_acceptedSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294739098075301Arsenicresult.csv2000-06-09Not reported / not verifiedNot reported / not verifiedNot reported / not verifiedNot reported / not verifiedsource_blank, source_detection_condition, censored_not_exact_measurement, source_not_accepted, source_unit_unspecifiedSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294739098075301Arsenicresult.csv2001-06-11Not reported / not verifiedNot reported / not verified0.3000ug/lsource_not_accepted, quality_control_sampleSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294739098075301Chlorideresult.csv2006-06-19Not reported / not verifiedNot reported / not verified7.9300mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294739098075301Inorganic nitrogen (nitrate and nitrite)result.csv2006-06-19Not reported / not verifiedNot reported / not verified0.9200mg/l as NSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294739098075301Inorganic nitrogen (nitrate and nitrite)result.csv2008-12-22Not reported / not verifiedNot reported / not verified0.8100mg/l as NSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294739098075301Chlorideresult.csv2008-12-22Not reported / not verifiedNot reported / not verified9.6800mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294739098075301Arsenicresult.csv2008-12-22Not reported / not verifiedNot reported / not verified0.2200ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294752095242102Chlorideresult.csv2002-09-11Not reported / not verifiedNot reported / not verified30.9000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294752095242102Chlorideresult.csv2004-08-26Not reported / not verifiedNot reported / not verified30.0000mg/lsource_not_acceptedSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294800095344101Arsenicresult.csv2010-04-06Not reported / not verifiedNot reported / not verified5.2000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294800095344101Chlorideresult.csv2010-04-06Not reported / not verifiedNot reported / not verified31.2000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294800095415801Arsenicresult.csv2003-12-21Not reported / not verifiedNot reported / not verified2.3000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294800095415801Chlorideresult.csv2003-12-21Not reported / not verifiedNot reported / not verified108.0000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294800095415801Inorganic nitrogen (nitrate and nitrite)result.csv2003-12-21Not 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-294800095415801Chlorideresult.csv2015-04-06Not reported / not verifiedNot reported / not verified43.4000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294800095415801Arsenicresult.csv2015-04-06Not reported / not verifiedNot reported / not verified2.3000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294800095415801Inorganic nitrogen (nitrate and nitrite)result.csv2015-04-06Not 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-294807095452701Arsenicresult.csv2003-12-13Not reported / not verifiedNot reported / not verified0.5000ug/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294807095452701Chlorideresult.csv2003-12-13Not reported / not verifiedNot reported / not verified80.5000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294807095452701Inorganic nitrogen (nitrate and nitrite)result.csv2003-12-13Not reported / not verifiedNot reported / not verified1.5200mg/l as NSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294807095452701Chlorideresult.csv2015-01-14Not reported / not verifiedNot reported / not verified82.8000mg/lSourceExact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistryUSGS-294807095452701Inorganic nitrogen (nitrate and nitrite)result.csv2015-01-14Not reported / not verifiedNot reported / not verified1.7000mg/l as NSourceExact 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.

JSON ↗
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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