What to Expect During an Underground Oil Tank Removal in NJ

If you’ve been told there’s an underground oil tank on a property — yours or one you’re buying — the removal process probably feels like a black box. Here is exactly what happens, in order, based on how Lombardo Environmental has handled residential removals across New Jersey since 1950. 

The Removal Process at a Glance

For a standard residential job, the entire process from permit filing to permit closeout follows twelve steps. Removal day itself is completed in a single day.

Step

What Happens

Who Handles It

Timing

1

Free on-site estimate

Lombardo

Before job starts

2

Formal quote issued

Lombardo

Within 1–2 days

3

Quote approved + 50% deposit collected

Client + Lombardo

At sign-off

4

Permit filed with township; markout called

Lombardo

Immediately after deposit

5

Permit issued; inspection + removal date scheduled

Lombardo

Typically 1–4 weeks

6

Removal day: excavation, cut & clean, tank lifted

Lombardo crew

Single day

7

Township inspector approves work on-site

Township inspector

Same day as removal

8

Site backfilled; tank hauled to NJ-licensed facility

Lombardo

Same day

9

Remaining 50% invoiced

Lombardo

After completion

10

Soil samples submitted to lab (if required)

Lombardo

If inspection triggers it

11

SIR + UHOT questionnaire submitted to NJDEP

Lombardo

After clean sample results

12

Permit formally closed out; documentation to client

Lombardo

Final step

 

📋 Note: Steps 1–3 happen before any digging. Steps 10–12 only apply if soil testing is required or triggered by the inspection. A clean job with no contamination reaches closeout faster.

Two Regulators, Two Different Roles — and Why It Matters

Most homeowners don’t realize that oil tank removal in New Jersey involves two separate government bodies with distinct roles. Confusing them causes unnecessary alarm.

Regulator

Role in Tank Removal

When They Get Involved

NJ Dept. of Community Affairs (DCA)

Issues the local permit and sends a township inspector to approve the physical removal

Every removal — no exceptions

NJDEP (Dept. of Environmental Protection)

Oversees remediation if a discharge (leak) is confirmed; receives the UHOT questionnaire and SIR after clean removals

Only when contamination is found, OR at permit closeout via UHOT program

For a clean removal with no contamination, NJDEP’s involvement is limited to receiving your closeout paperwork through the UHOT (Unregulated Heating Oil Tank) program. The township inspector is the person who matters most on removal day.

What Actually Happens on Removal Day

 

Markout First — Before Any Digging

Before a single shovel goes in the ground, Lombardo calls for markout: the process of locating and flagging all underground gas and water lines on the property. This is required by law before any excavation. Skipping it — which some contractors do on tight timelines — risks hitting a gas line, which stops the job immediately and creates a far bigger problem than the tank itself.

Excavation

A standard residential tank (typically 550 gallons) requires an excavation roughly 6 feet wide by 8 feet long. If your tank is under a driveway, patio, or tight against the foundation, expect hand-digging near those areas — mechanical equipment can’t work safely that close to structures or utilities. The excavation depth depends on how deep the tank was set when it was originally installed, which varies.

Cut and Clean — the Step Most Competitors Skip Explaining

Before the tank is lifted, it is cut open and all remaining liquid product is pumped out and removed. This step is not optional. Lifting a tank that still has heating oil inside creates a serious spill risk and would contaminate the surrounding soil during extraction. The interior is then cleaned. This is also when the crew inspects the tank wall for holes — if holes are found, soil samples will very likely be required, regardless of whether the township inspection passes.

💡 Field note: The cut and clean is one of the clearest indicators of a contractor’s quality. A crew that rushes past it to lift the tank faster is cutting corners that can cost you significantly more if oil escapes during extraction.

Township Inspection — What the Inspector Is Looking For

The township inspector arrives on-site the same day as the removal. They examine two things: the tank itself (looking for corrosion, holes, and structural failure) and the bottom of the excavation pit (looking for soil staining, odor, and visual evidence of oil discharge).

Inspection passes: the hole is backfilled with certified clean fill, the surface is restored, and the job proceeds to closeout paperwork.

Inspection fails: soil samples are taken — typically $150 per sample. For a 550-gallon tank, six samples are collected from the sides and bottom of the excavation. Those samples go to a certified NJ lab for EPH (Extractable Petroleum Hydrocarbons) and Base Neutral Compound analysis. Results typically take one to two weeks.

What Happens After the Township Inspection

Inspection Result

Next Step

Timeline to Closeout

Additional Cost

Passes — no sign of discharge

Backfill, cleanup, proceed to permit closeout

2–4 weeks for paperwork

None beyond removal quote

Fails — soil samples come back clean

SIR + UHOT questionnaire submitted to NJDEP

4–8 weeks total

~$150/sample for testing

Fails — soil samples show contamination

New remediation quote issued; NJDEP case opened

2 days to ~1 month depending on severity

Significantly higher — new scope quoted upfront

The Paperwork at the End — What You Actually Receive

This is the piece most homeowners don’t think about until they need it — usually at the closing table. When Lombardo completes a clean removal, you receive:

→  The township permit, formally closed out

→  A Site Investigation Report (SIR) prepared by Lombardo (if soil samples were taken)

→  The UHOT questionnaire submission to NJDEP confirming the case is closed

→  Photographs from the excavation and removal

→  Lab results if soil samples were collected

If contamination was found and remediated, NJDEP may issue an NFA (No Further Action) letter — this is issued by the state, not by Lombardo, and cannot be expedited. It confirms that no further environmental action is required on the property.

Realistic Cost Ranges for NJ Residential Removals

Scope

Typical NJ Range

What Drives the Cost

Standard removal (no contamination)

$1,500 – $3,500

Tank size, access, depth, surface restoration

Removal + soil sampling (clean results)

$2,000 – $4,500

Number of samples required by inspector

Removal + minor remediation

$5,000 – $15,000

Volume of contaminated soil, disposal fees

Removal + major remediation

$15,000 – $100,000+

Groundwater impact, extent of contamination spread

⚠️ No hidden fees: Lombardo quotes what it charges. If remediation is needed, a new written quote is issued before any additional work begins — you are never surprised by an invoice that doesn’t match what you were told.

One Question Worth Asking Any Contractor Before You Hire

“Do you handle the permit filing, the township inspection coordination, the soil sample submission, and the NJDEP closeout paperwork — or do I need to manage any of that myself?”

With Lombardo, the answer is: we handle all of it. That is not universal in this industry. Some contractors complete the physical removal and hand the homeowner a pile of paperwork they’ve never seen before and leave them to figure out the rest. Permit closeout is Lombardo’s responsibility on every job.

Schedule a Free Estimate

Lombardo Environmental has removed underground oil tanks across New Jersey since 1950. NJDEP-certified, fully insured including pollution liability, and handling every permit from filing through closeout. Call 201-796-3390 or visit lombardotank.com to schedule your free on-site estimate.

    Frequently Asked Questions

    Municipal permit processing in NJ typically takes one to four weeks depending on the township. Bergen, Essex, Morris, and Passaic county townships each have their own timelines — some move faster than others. Lombardo files immediately after your deposit and follows up on permit status on your behalf.

    Not unless contamination is confirmed. For a clean residential heating oil tank removal, the DCA (local building department) issues the permit and the township inspector approves the work. NJDEP enters the picture only if a discharge is found — or at the end of the process when Lombardo submits the UHOT questionnaire to formally close the case.

    It depends on where you are in the process and what your buyer’s attorney requires. A tank in the middle of removal with no closeout documentation creates a title issue. Ideally the job is completed and closeout paperwork is in hand before closing. Lombardo can expedite scheduling when a closing date is driving the timeline — call us directly to discuss the specific situation.

    Lombardo hauls the tank to an NJ state-licensed disposal facility. Everything that comes out of the ground — the tank, the oil product, the sludge — is legally disposed of by Lombardo. You receive documentation confirming disposal, which may be required by your township or lender.

    Lombardo Environmental conducts oil tank searches, oil tank removal and installation,  ground soil remediation, sewer scopes, demolition and commercial environmental work.