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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 7:44 PM
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.
Gaps in the data behind this page
Source last observed Oct 10, 2026, 7:00 PM.
710 of the 3,026 datasets in the catalog hold no queryable rows.
710 / 3,026
Source: /api/field-coverage
Check it yourself: /api/field-coverage#/catalog/datasets_mart_declared
48 of the 2,408 mirrored datasets lag the source they copy.
48 / 2,408
Source: /api/scorecard
Check it yourself: /api/scorecard#/mirror_lag/datasets_behind
This note returns on its own when the measurement moves.
These pages state their own gaps: /datasets, /freshness, /scorecard, /scorecard/fields, /analyses, /ontology, /graph, /alerts, any topic page under /domains.
Showing 18 of 18 datasets
In accordance with Title 40 Part 403.8(f) (2) (viii) of the Code of Federal Regulations and Title 15, Section 19-10 (g) of the Rules of the City of New York, the Department of Environmental Protection…
At-the-tap samples tested for lead and copper
NYCDEP Citywide Catch Basins. Catch basins are an important part of New York City’s 7,500-mile sewer network. They are connected to underground pipes that channel stormwater from the street to one of…
NYCDEP Citywide Hydrants
Citywide Outfalls
At-the-tap samples tested for lead and copper
This dataset contains annual allocations of dewatered solids or biosolids from a specific dewatering facility to a specific management practice site in dry metric tons. 'Dewatered solids' are the soli…
A brief history of water consumption in the New York City Water Supply System (Based on New York City Census population)
Qualifiers, notes, and additional information regarding the sample data provided or omitted.
Qualifiers, notes, and additional information regarding the sample data provided or omitted.
Qualifiers, notes, and additional information regarding the sample data provided or omitted.
Qualifiers, notes, and additional information regarding the sample data provided or omitted.
Routine aqueduct, elevation tap, and basin elevation monitoring results from 1987-Present
Site descriptions for all hydrological, keypoint, limnological, and wastewater treatment plant samples collected from 1984-present
Routine stream monitoring results from 1987-Present.
Routine reservoir monitoring results from 1984-Present
Routine wastewater treatment plant monitoring results from 1987-Present
NYCDEP Recreation Area Maps Note: WMU = New York State Department of Environmental Conservation Wildlife Management Unit. Hunters should verify the WMU is correct. ** Hunting by Bow only. *** Hunting…