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Dataset libraryEntitySource fieldSource fileUnitFromToSource depth · FromSource depth · ToQuality flags

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.

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Measurements
Dataset	Entity	Source field	Source file	Observed at	Source depth	Unit	Value	Unit	Quality flags	Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292556098260702	Arsenic	result.csv	2003-08-14	Not reported / not verified	Not reported / not verified	Not reported / not verified	Not reported / not verified	source_blank, source_detection_condition, censored_not_exact_measurement, source_unit_unspecified	Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292556098260702	Chloride	result.csv	2003-12-03	Not reported / not verified	Not reported / not verified	26.9000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292556098260702	Chloride	result.csv	2004-05-19	Not reported / not verified	Not reported / not verified	26.2000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292556098260702	Arsenic	result.csv	2004-08-25	Not reported / not verified	Not reported / not verified	Not reported / not verified	Not reported / not verified	source_blank, source_detection_condition, censored_not_exact_measurement, source_unit_unspecified	Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292556098260702	Inorganic nitrogen (nitrate and nitrite)	result.csv	2006-12-19	Not reported / not verified	Not reported / not verified	1.4800	mg/l as N		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292556098260702	Arsenic	result.csv	2006-12-19	Not reported / not verified	Not reported / not verified	0.4900	ug/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292556098260702	Chloride	result.csv	2006-12-19	Not reported / not verified	Not reported / not verified	26.8000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292557098261401	Chloride	result.csv	2005-05-09	Not reported / not verified	Not reported / not verified	23.6000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292557098261401	Arsenic	result.csv	2005-05-09	Not reported / not verified	Not reported / not verified	0.6000	ug/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292557098261401	Arsenic	result.csv	2010-07-20	Not reported / not verified	Not reported / not verified	0.4800	ug/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292557098261401	Chloride	result.csv	2010-07-20	Not reported / not verified	Not reported / not verified	24.4000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292557098261401	Chloride	result.csv	2017-08-24	Not reported / not verified	Not reported / not verified	24.2000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292557098261401	Arsenic	result.csv	2017-08-24	Not reported / not verified	Not reported / not verified	0.9800	ug/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292600099111201	Chloride	result.csv	2003-10-31	Not reported / not verified	Not reported / not verified	11.5000	mg/l	source_not_accepted	Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292600099111201	Inorganic nitrogen (nitrate and nitrite)	result.csv	2003-10-31	Not reported / not verified	Not reported / not verified	5.2400	mg/l as N	source_not_accepted	Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292603095150901	Chloride	result.csv	2005-08-16	Not reported / not verified	Not reported / not verified	248.0000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292603095150901	Chloride	result.csv	2008-08-28	Not reported / not verified	Not reported / not verified	251.0000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292603095150901	Chloride	result.csv	2012-09-10	Not reported / not verified	Not reported / not verified	265.0000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292604098563201	Inorganic nitrogen (nitrate and nitrite)	result.csv	2005-05-16	Not reported / not verified	Not reported / not verified	0.7300	mg/l as N		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292604098563201	Chloride	result.csv	2005-05-16	Not reported / not verified	Not reported / not verified	10.8000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292604098563201	Arsenic	result.csv	2005-05-16	Not reported / not verified	Not reported / not verified	0.5000	ug/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292604098563201	Chloride	result.csv	2022-10-20	Not reported / not verified	Not reported / not verified	11.7000	mg/l	source_not_accepted	Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292604098563201	Arsenic	result.csv	2022-10-20	Not reported / not verified	Not reported / not verified	0.3800	ug/l	source_not_accepted	Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292604098563201	Inorganic nitrogen (nitrate and nitrite)	result.csv	2022-10-20	Not reported / not verified	Not reported / not verified	0.6700	mg/l as N	source_not_accepted	Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292617095065501	Chloride	result.csv	2000-08-30	Not reported / not verified	Not reported / not verified	253.0000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292617095065501	Chloride	result.csv	2002-08-27	Not reported / not verified	Not reported / not verified	217.0000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292617095065501	Chloride	result.csv	2004-07-20	Not reported / not verified	Not reported / not verified	211.0000	mg/l	source_not_accepted	Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292617095065501	Chloride	result.csv	2006-08-02	Not reported / not verified	Not reported / not verified	212.0000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292617095065501	Chloride	result.csv	2008-08-20	Not reported / not verified	Not reported / not verified	226.0000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Chloride	result.csv	2013-08-29	Not reported / not verified	Not reported / not verified	8.2300	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Inorganic nitrogen (nitrate and nitrite)	result.csv	2013-08-29	Not reported / not verified	Not reported / not verified	0.9300	mg/l as N		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Chloride	result.csv	2013-12-12	Not reported / not verified	Not reported / not verified	8.0000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Inorganic nitrogen (nitrate and nitrite)	result.csv	2013-12-12	Not reported / not verified	Not reported / not verified	0.9000	mg/l as N		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Chloride	result.csv	2014-04-17	Not reported / not verified	Not reported / not verified	8.1300	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Inorganic nitrogen (nitrate and nitrite)	result.csv	2014-04-17	Not reported / not verified	Not reported / not verified	0.9100	mg/l as N		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Chloride	result.csv	2014-06-02	Not reported / not verified	Not reported / not verified	8.5500	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Inorganic nitrogen (nitrate and nitrite)	result.csv	2014-06-02	Not reported / not verified	Not reported / not verified	1.1800	mg/l as N		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Inorganic nitrogen (nitrate and nitrite)	result.csv	2014-08-20	Not reported / not verified	Not reported / not verified	1.2000	mg/l as N		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Chloride	result.csv	2014-08-20	Not reported / not verified	Not reported / not verified	8.5000	mg/l		Source	Exact record
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	USGS-292618099165901	Inorganic nitrogen (nitrate and nitrite)	result.csv	2014-10-21	Not reported / not verified	Not reported / not verified	0.9400	mg/l as N		Source	Exact 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.

Reuse terms

Source documents ↗

JSON ↗

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 library	Runtime records	Source documents	Missing values	Reported values without a unit	Records without an observation date
USGS · Texas groundwater chloride, arsenic and nitrate/nitrite chemistry	5,974	0	593	0	0

Data coverage

Counts describe source samples, not unique physical wells.

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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
Entity	Source field	Source file	Unit	Source depth · Unit	records
USGS-260204097443701	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-260204097443701	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-260204097443701	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-271315097473201	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-271315097473201	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-271315097473201	Inorganic nitrogen (nitrate and nitrite)	result.csv	mg/l as N	Not reported / not verified	1
USGS-271505098073401	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-271505098073401	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-271505098073401	Inorganic nitrogen (nitrate and nitrite)	result.csv	mg/l as N	Not reported / not verified	1
USGS-271841098402801	Inorganic nitrogen (nitrate and nitrite)	result.csv	mg/l as N	Not reported / not verified	1
USGS-271843098401101	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-271843098401101	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-271843098401101	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-272638098532301	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-272638098532301	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-272638098532301	Inorganic nitrogen (nitrate and nitrite)	result.csv	mg/l as N	Not reported / not verified	1
USGS-274439098144401	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-274439098144401	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-274439098144401	Inorganic nitrogen (nitrate and nitrite)	result.csv	mg/l as N	Not reported / not verified	1
USGS-275725097562701	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-275725097562701	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-275725097562701	Inorganic nitrogen (nitrate and nitrite)	result.csv	mg/l as N	Not reported / not verified	1
USGS-280232099210601	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-280232099210601	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-280232099210601	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-280951096593801	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-280951096593801	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-280951096593801	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-281433097191300	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-281433097191300	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-281433097191300	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-281546099234601	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-281546099234601	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-281546099234601	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-281621100040401	Arsenic	result.csv	ug/l	Not reported / not verified	2
USGS-281621100040401	Chloride	result.csv	mg/l	Not reported / not verified	2
USGS-281621100040401	Inorganic nitrogen (nitrate and nitrite)	result.csv	mg/l as N	Not reported / not verified	2
USGS-282009099044001	Arsenic	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-282009099044001	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-282009099044001	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-282605099141101	Arsenic	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-282605099141101	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-282605099141101	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-282608099455301	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-282716099545101	Arsenic	result.csv	ug/l	Not reported / not verified	1
USGS-282716099545101	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-282716099545101	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-282733098325701	Arsenic	result.csv	Not reported / not verified	Not reported / not verified	1
USGS-282733098325701	Chloride	result.csv	mg/l	Not reported / not verified	1
USGS-282733098325701	Inorganic nitrogen (nitrate and nitrite)	result.csv	Not reported / not verified	Not reported / not verified	1