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Coverage

46,873 of 56,681 columns decided — 82.7% · 9,148 bound (16.1%) · 9,808 still unread

Bound: 9,148; 16.1%; a concept was found and asserted for the column.
Refused: 29,070; 51.3%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 8,655; 15.3%; read, but the evidence did not settle it.
Unanalysed: 9,808; 17.3%; nobody has read this column yet.

56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 6:28 PM

Where the unread columns are

3,026 datasets, 56,681 catalogued fields, 9,808 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.

NYC Drinking Water Tank Inspections and Audits Compliance Results

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← What we have understood · Dataset page

Fields catalogued

Understood

Checked, no match

Nobody has looked

Most read — At least three quarters of their fields carry a verdict.

Every field in this dataset

Covered and uncovered alike, in the order the publisher lists them. A field with no verdict is one nobody has looked at yet.

Field	Type	What we know	Meaning	How it was decided	Shared term
borough Borough	Text	Understood	place.borough Borough	value_domain_read	borough
street_name Street Name	Text	Checked, no match	—	dictionary_read House number of the physical location of the drinking water tank(s)	—
number_of_dwt Number of DWT	Number	Checked, no match	—	dictionary_read Number of active cooling tower equipment	—
community_board Community_Board	Text	Understood	place.community_district Community District / Board	value_domain_read	community_district
activity_type Activity_Type	Text	Understood	category.classification Publisher classification	value_profile top[2]={Cycle×122126; Non-Cycle×2117}	—
council_district Council_District	Text	Checked, no match	—	value_domain_read	—
activity_year Activity_Year	Text	Nobody has looked	—	—	—
zip_code Zip_code	Text	Checked, no match	—	value_domain_read	—
nta_code NTA_Code	Text	Understood	place.nta Neighborhood Tabulation Area	value_domain_read	nta
date_of_occurrence Date_of_Occurrence	Calendar date	Understood	time.period.month Month	value_profile Date of occurrence of the violation	—
bbl BBL	Text	Checked, no match	—	value_domain_read	—
law_section Law_Section	Text	Checked, no match	—	dictionary_read Section/Rule of Law of Violation	—
summons_number Summons_Number	Text	Checked, no match	—	value_domain_read 2000010201×180; 2000013948×176	—
longitude Longitude	Number	Understood	geometry.longitude Longitude	dictionary_read_underspecified Longitude of the location of the building with the drinking water tank	—
violation_text Violation_Text	Text	Checked, no match	—	value_domain_read No records of all chemicals and biocid…(clipped)×7806	—
bin BIN	Text	Understood	place.bin Building Identification Number	operator_cohort matched by name, unread	bin
census_tract Census_Tract	Text	Checked, no match	—	value_domain_read	—
latitude Latitude	Number	Understood	geometry.latitude Latitude	dictionary_read_underspecified Latitude of the location of the building with the drinking water tank	—
violation_code Violation_Code	Text	Nobody has looked	—	—	—
compliance_year Compliance_Year	Text	Nobody has looked	—	—	—
house House #	Text	Checked, no match	—	dictionary_read House number of the physical location of the drinking water tank(s)	—
status Status	Text	Understood	category.status Workflow status	value_profile Status of a building's drinking water tank(s)	—