NYC DOB ViolationsNYC drinking water tank inspection
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Short answer
Owners of NYC buildings that use tanks to store or pressurize drinking water must have them inspected at least once a year. The inspection and water quality sampling must happen between January 1 and December 31, and the certified water tank inspector must submit the report by January 15 of the next year.
Tank deadlines at a glance
| Detail | Answer |
|---|---|
| Inspection and sampling | January 1 to December 31 |
| Report due | January 15 of the next year |
| Who submits it | Your certified water tank inspector |
| Keep results for | At least five years |
The inspection must cover both the tank and a bacteriological sample of the water.
Frequently asked questions
When is the NYC water tank report due?
By January 15 of the year after the inspection. A 2026 inspection is due by January 15, 2027.
Who submits the report?
Your certified water tank inspector submits it to the Health Department.
How long do I keep the results?
Building owners must keep inspection and water test results for at least five years.