Remove or Abandon an Old Oil Tank in Westchester? What the Rules Say
Updated 2026-10-12
Thousands of older Westchester homes still have a heating oil tank buried in the yard or sitting in the basement, often long after the house switched to gas. If you have one you no longer use, you have two choices: take it out, or close it in place. Here is what New York State and Westchester municipalities say about each option, what it costs, and what happens if the tank turns out to have leaked.
The short answer
The New York State Department of Environmental Conservation (DEC) says removing an unused tank is the best choice: it lets the soil be checked and avoids a sinkhole later if an old tank collapses. Closing a tank in place is also an option, but some towns, such as Pleasantville, only accept it when the tank has no holes and the soil around it is clean. Either way, plan on a building permit, an inspection and soil testing.
Who regulates a home heating oil tank?
Most home heating oil tanks are not covered by the state's Petroleum Bulk Storage (PBS) rules, because they hold less than 1,100 gallons. That does not mean there are no rules. DEC's homeowner guide tells residents of Westchester, one of three counties that run their own petroleum storage programs, to check with the county Department of Health about local rules (DEC homeowner guide).
In Westchester, tanks of 1,100 gallons or more must be registered with the county Department of Health (Village of Pleasantville). For a registered tank, the county's closure notification form asks you to notify the Health Department at least 48 hours before the closure inspection; the county's petroleum bulk storage office is at 914-864-7278 (Westchester County DOH closure form). The typical 275 or 550 gallon residential tank is below that size, so the main paperwork is usually with your town or village building department.
Option 1: Remove the tank
Removal means the tank is emptied, cleaned and purged of vapors, dug up (or cut apart and carried out of a basement), and hauled away. The fill and vent pipes are removed or capped so no one can accidentally deliver oil to a tank that is no longer there, which does happen. Soil under the tank is sampled and tested.
DEC's guide puts removal at roughly $1,000 to $5,000, depending on the tank's size, condition and how easy it is to reach. That figure assumes the soil is clean. DEC also notes that removal lets you check the soil, and avoids a sinkhole later if an old tank collapses.
Option 2: Close (abandon) the tank in place
Closing in place leaves the tank in the ground. The tank must be emptied, cleaned and purged of vapors, then filled with an inert material. In the Village of Pleasantville, for example, the tank is filled with concrete or sand, and soil is sampled through a hole drilled in the bottom of the tank. Pleasantville only allows closure in place if the tank has no holes and there is no contamination (Village of Pleasantville).
Closure in place can make sense when a tank sits under a deck, driveway or addition and digging it out would cause more damage than it is worth. The trade-off is that the tank is still there, and some future buyers and their lenders will ask questions about it.
Permits and inspections: what Westchester towns ask for
Each town and village sets its own process, so call your building department before work starts. Two examples show what to expect:
- Pleasantville: a building department permit and inspection are required. Soil samples must be taken whether or not the tank looks clean, and any contamination must be removed to the satisfaction of the Westchester County Department of Health and DEC (source).
- Croton-on-Hudson: the village's oil tank removal application asks for a copy of the contractor's Westchester County license, proof of insurance, equipment specifications and a drawing of the work. The plumbing inspector does the final inspection; call 914-271-4783 to schedule (source).
Keep every page of the paperwork: the permit, the inspection sign-off, the soil test results and the disposal receipt for the tank. You will want them when you sell.
What if the tank leaked?
This is the part that turns a few-thousand-dollar job into a large one. DEC warns that cleaning up a leak can cost tens of thousands of dollars, and that most homeowner's insurance policies have a pollution exclusion, so they may not pay for it. Read your policy, and ask your agent directly whether oil tank leaks are covered.
Signs of a leak, according to DEC, include:
- Soil that is stained or gives off a strong oil odor
- A damaged tank or damaged piping
- A sheen on groundwater, for example in a sump pit
- Environmental test results that show petroleum in the soil or water
If you see or smell signs of a spill, call the DEC Spills Hotline at 1-800-457-7362. The New York State Comptroller's Oil Spill Fund notes that spills must be reported within two hours of discovery (Office of the State Comptroller). For general questions, DEC's helpline is (518) 402-9543.
Can't I just test the tank?
A tank test tells you whether the tank is tight today. DEC points out that a test cannot predict whether it will leak tomorrow. If the tank is no longer in use, testing it every few years costs money without removing the risk. Soil testing at removal, on the other hand, gives you a documented answer.
Next steps
- Find out whether you actually have a tank. If you are not sure, an oil tank sweep uses a metal detector to look for a buried tank and its pipes.
- Call your town or village building department and ask what permit is needed.
- Get a quote for removal or closure in place that includes soil testing and the permit.
We connect homeowners across Westchester County with an independent, licensed oil tank contractor. Call or request a quote and tell us your town.
Sources: NYS DEC homeowner guide to heating oil tanks, Westchester County DOH Petroleum Bulk Storage, Village of Pleasantville, Village of Croton-on-Hudson, NYS Comptroller Oil Spill Fund. Rules change; confirm with your building department before work starts.