Free Residential at-the-tap Lead and Copper Data
At-the-tap samples tested for lead and copper
Open in the graph · Relate this dataset · What these columns mean
Freshness
The publisher's promise
How the agency that publishes this data says it keeps the data current.
Fresh
- Says it updates
- Annually
- Actually updates about every
- —
- Publisher last updated the data
- Apr 14, 2026
Our mirror
Whether our copy of this data is current with the source.
In sync
- We last synced
- Apr 14, 2026, 9:56 AM
- Rows in our copy
- 54,355
- Rows at the source
- 54,355
- Our copy trails the source by
- under a minute
Columns
Each source column, with the name and type we use to store it.
0 of 11 columns carry a concept; 11 carry a description from the publisher. Read the concept column before you join. A column with no concept carries no claim from us, and a name that looks like a key is not one.
| Source field | Display name | What the publisher says it is | Concept | Source type | Stored as | Stored type | Row identifier | Unit |
|---|---|---|---|---|---|---|---|---|
lead_first_draw_mg_l | Lead First_Draw (mg/L) | Concentration of lead in the first draw sample | Not bound | Number | lead_first_draw_mg_l | numeric | — | |
lead_5_minute_flush_mg_l | Lead 5 Minute Flush (mg/L) | Concentration of lead in the 5 minute flush sample | Not bound | Number | lead_5_minute_flush_mg_l | numeric | — | |
lead_1_2_minute_flush_mg_l | Lead 1-2 Minute Flush (mg/L) | Concentration of lead in the 1-2 minute flush sample | Not bound | Number | lead_1_2_minute_flush_mg_l | numeric | — | |
copper_first_draw_mg_l | Copper First Draw (mg/L) | Concentration of copper in the first draw sample | Not bound | Number | copper_first_draw_mg_l | numeric | — | |
copper_1_2_minute_flush_mg_l | Copper 1-2 Minute Flush (mg/L) | Concentration of copper in the 1-2 minute flush sample | Not bound | Number | copper_1_2_minute_flush_mg_l | numeric | — | |
borough | Borough | Borough where sample was collected | Not bound | Text | borough | text | — | |
copper_5_minute_flush_mg_l | Copper 5 minute Flush (mg/L) | Concentration of copper in the 5 minute flush sample | Not bound | Number | copper_5_minute_flush_mg_l | numeric | — | |
zipcode | Zipcode | Zipcode of location where sample was collected |
Download
This file was produced on Aug 25, 2026, 10:04 PM.
Refresh this dataset
Source and attribution
Where this data comes from, which version we hold, and what we changed.
- Source
- https://data.cityofnewyork.us/d/k5us-nav4
- Version
- Content hash:
ae15b947650b58d9d8e11564a2d8b75d3fa86bcd6888f5e6cc577bf13afa1a97 - What we changed
- We did not change the data. We stored it as published.
- Publisher
- codenownyc
- We retrieved it
- Apr 14, 2026, 9:56 AM
Update history
| Started | Kind | Result | Rows written | Produced by |
|---|---|---|---|---|
| Aug 24, 2026, 8:46 AM | full_replace | success | 54,355 | codenow-nycmesh-container-oci.jfrog.io/codenow/citytap-pull:0.1.68 |