A faint oil smell when the burner runs is worth checking. So is a dark patch beneath the tank, a damp fitting or fuel use that suddenly seems too high. None proves a leak on its own, but none should be brushed aside.
If you see an active release or unsafe condition, avoid disturbing the tank or spreading fuel. For immediate danger call emergency services. The New York State DEC operates a 24-hour petroleum spill hotline at 1-800-457-7362.
Warning signs worth documenting
Note where a smell or stain appears, whether it changes when the boiler runs and when it was first noticed. Photographs taken from a safe distance can help document the condition without touching piping or soil.
- Persistent heating-oil odor in a basement or yard
- Visible wetness or staining around fittings and lines
- Fuel appearing in soil or around a buried tank
- Unexpected fuel-use changes
When reporting may be required
NYSDEC's spill response FAQ describes a general two-hour reporting requirement for petroleum releases, with narrow exceptions when all specified conditions are met. Do not assume those exceptions apply to a suspected buried leak. Ask DEC directly if uncertain.
Removal is not the same as cleanup
Taking an old tank away does not necessarily resolve affected soil, groundwater or other materials. A professional evaluation can distinguish tank removal, testing and remediation. The scope and cost of cleanup can be substantially different from routine equipment removal.
How this site can help
This site is an inquiry and referral service, not a spill-response contractor. An emergency or reportable release should be directed to the appropriate public authorities rather than handled through a routine website form.
Before accepting an estimate, ask who's responsible for the leftover oil, pipes, disposal and any permits. Have the company put those details in writing.
Official references
Check these agencies' current guidance for your property and type of work: