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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, 4:22 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, 4:00 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
52 of the 2,408 mirrored datasets lag the source they copy.
52 / 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.
Explore parks, trees, air, and water data.
Showing 25 of 40 datasets
Clean Air Tracking System (CATS) is online application with end-to-end process where NYC Residents can submit for New Boiler Registration, Boiler Registration Renewal, Affidavit, Amendment, Boiler Wor…
Cryptosporidium and Giardia Analytical Results for Source Waters
Data collected to fulfill the requirements of the SWTR (Surface Water Treatment Rule) and FAD (Filtration Avoidance Determination). Data is collected via grab sampling, analysis, LIMS data capture and…
The DEP Application and Permit data will contain information about the different types of applications approved and permits issued on a regular basis.
ACP7 form is an asbestos project notification. Any time asbestos abatement is perform on quantities greater than a minor project amount, the applicant has to file this form with DEP Asbestos Control P…
This dataset contains the locations and detailed information of green infrastructure practices in NYC neighborhoods built primarily through NYC Green Infrastructure Program initiatives. Green infrastr…
This dataset contains the locations and detailed information of green infrastructure practices in NYC neighborhoods built primarily through NYC Green Infrastructure Program initiatives. Green infrastr…
This dataset contains the locations and detailed information of green infrastructure practices in NYC neighborhoods built primarily through NYC Green Infrastructure Program initiatives. Green infrastr…
This dataset contains the locations and detailed information of green infrastructure practices in NYC neighborhoods built primarily through NYC Green Infrastructure Program initiatives. Green infrastr…
For the FloodNet data collection page, please follow this link. This data consists of metadata for each FloodNet sensor including its location. This data can be used to associate FloodNet sensor metad…
For the FloodNet data collection page, please follow this link. Data presented here were collected by the FloodNet project, which is a collaboration between researchers at academic institutions (New Y…
The data tables summarizes the disinfection by-product results for TTHM and HAA5 from distribution sites and calculated compliance values for each quarter (a) : analyzed by EPA Method 524.3 (b) : anal…
The data tables summarize the turbidity values, coliform, fluoride and chlorine found at sides in distribution each month.
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…
Monthly results from the distribution sites for orthophosphate, pH, temperature, conductivity and monthly alkalinity, calcium, lead and copper - Bi annually updated
Work orders associated with a CSR complaints
Harbor water sampling information
At-the-tap samples tested for lead and copper
The Department of Environmental Protection (DEP) is offering the following data to provide residents and property owners with information regarding their water service lines.
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…
List of Certified Asbestos Investigators (CAI)