Mold is truly a four letter word and also a very misunderstood term.  You've heard of "Black Mold" (not a real mold term) or "Toxic Mold" (no such thing)? In the mold testing and mold inspection industry "black toxic mold" should not be used.  Misinformation abounds, so here are some important facts about mold, mold remediation and mold testing

Growing mold off-gases, causing that musty odor you smell, and if you think your basements smells that way because it is a basement, you're wrong,  it's not supposed to smell musty.  Mold growth stains surfaces and is visible if you understand where and what to identify as mold.  If you see mold growing inside a building, something is wrong, it is not normal or typical, even at the shore/beach.  Curren knows because we have inspected thousands of properties and, no, they all do not have mold growing.

Pertaining to mold testing, when obvious mold is present the EPA agrees testing is not necessary.

If you have discolored building materials and are not 100% if its mold, surface sampling can be performed for verification of questionable staining indicative of mold.

Mold Testing can verify if a stained or discolored surface is impacted with mold growth, such as  surface sampling and/or air testing (non viable spore trap sampling). These mold tests quantify both mold spore count in a room and also evaluates for hidden mold in a complaint room where no visible mold is present.

Pro Tip:  Buying a house that is being flipped and the basement is finished, get a mold inspection with mold testing.

Pro Tip:  Buying a home that was bank owned and rehabbed?  Get a mold inspection with mold testing.

Our ratio of finding hidden mold in both situations is around 90%, but 70% of the time we get called in AFTER someone has bought one of these types homes, in cases such as these, mold is found after you own the property.

Proper mold remediation is the removal of an unwanted condition, such as mold. This follows a multi-step process which typically entails containment of work area, followed by physical removal, cleaning and encapsulation of remaining organic surfaces and air scrubbing, all of which are appropriate and proposed for the subject site.

Curren Environmental has over 20 years’ experience in the environmental field and we provide Certified Education (CE) classes on environmental topics, including mold, so we know what we are talking about. There are only 11 states in the country that have mold regulations and licensing  programs and New Jersey is not one of them. Curren nor any other company in New Jersey holds a New Jersey license for mold remediation as the license does not exist. Generally speaking, mold remediation follows asbestos abatement guidelines to contain a workspace, establish air filtration and remove (remediate) mold. Curren has personnel that hold asbestos licensing and our personnel follow these procedures from independent training schools as well as in-house training program.

Expert advice from mold experts

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The story goes, you have a property where an underground oil tank was removed by the previous owner. You as the current owner, didn’t question any environmental issues with the tank removal when you bought the property, now you are selling the property and the buyer is asking for testing in the area where the tank was removed.

The concern with any tank is if the tank leaked and the leak is severe enough that remediation is required by environmental regulations.    There are many tanks that were removed and testing was not completed so the tank is undocumented for leaks.   There are also many tanks that leaked and the leak is not disclosed to buyers.

Below is a page from a Tank Closure Report (1 page of about 45 pages), if you read the Conclusions & Recommendations, it clearly says the tank did not leak and why.  If you are not in possession of a similar document, you don't have what you need.

The previous owner supplied you, the current homeowner, with the following:

1. Tank removal contract stating it was paid in full.
2. A copy of the permit for removal from the town
3. Approval sticker from the construction office. 

Why are the items above not enough for information regarding an underground oil tank removal to sell the house? In today's real estate market home buyers are more informed and they want iron clad data proving that the oil tank did not leak.

Those three pieces of information (contract, permit and approval sticker) does not prove the tank did or did not leak. The data set you have are just pieces of information, not a cohesive report with a narrative that ends with the conclusion that the tank did not leak. Environmental reports show the proper paperwork as appendices, but the actual report  details the work completed including  the evaluation and testing performed to confirm the tank did not leak. If you are an uninformed buyer, which 15-20 years ago is true, you assumed the tank didn’t leak. But again, in todays market buyers are assuming it did leak as you, the homeowner, have nothing saying to prove otherwise.

Example photos of soil sampling in a previously removed underground oil tank area.

Allow me to elaborate in greater detail - while the tank had a permit for removal and inspection, the construction official is not inspecting for leaks, they inspect if the tank was removed, as per the permit. I have had inspectors BOTH pass and fail removed tanks that did leak. A soil test for soil contamination is around $130.00, (Before 2005 the cost would have been $75.00), not performing soil testing is basically saying the owner does not want to find a problem, it’s not due to cost.   In short if you do not test you have a 100% probability of not finding anything.   Hockey legend Wayne Gretzky once said, “You miss 100% of the shots you don't take.”  If you do not test you can miss,

When assessing a tank for a leak you have to consider qualitative vs quantitative data?

Quantitative data is anything that can be counted or measured; it refers to numerical data. = testing

Qualitative data is descriptive, referring to things that can be observed but not measured = what you see.

If a few hundred dollars of laboratory testing was not completed when the tank was removed you have no Quantifiable data that the tank did not leak.   The easiest explanation is when you go to a dentist for a checkup, they physically evaluate you (qualitative), but they will also take an Xray (quantitative).     You know for any commercial tank in Delaware, New Jersey or Pennsylvania for the state to sign off they want laboratory testing, independent 3rd party certified testing to be 100% sure that no contamination exist from the tank.

There are laws regarding reporting an environmental leak from an oil tank when that leak is found. Prior to August of 2018, this law stated that a knowledgeable party was to report the leak, so a tank removal company telling a homeowner that the tank leaked and providing the NJDEP them the phone number to call, was very common. The question is if the homeowner actually reported the leak? Since August of 2018, the regulation requires the property owner to report the leak, but again, can you trust someone to report on themselves?

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We had a call recently from a home buyer on the same street and town where Curren Environmental has removed multiple underground oil tank, meaning houses in the area have oil tanks. The house the buyers were under agreement had an underground oil tank removed in 1995, the current homeowners had the removal permit and contract, but no soil testing data and no environmental report of removal, proving the tank did not leak.

We provided soil testing services for new buyer and found soil contamination.

Thankfully for the buyers the property did not need remediation, but there was NJDEP reporting and further testing to close the environmental issue (about $4,500.00 in costs, also adding about two months to the settlement date). The tank did indeed leak, but no one reported it. If the buyer didn’t hire Curren they would have been sitting on a property with soil contamination they had neither created nor knew about but would have owned none the less, and no doubt a future buyer would have found.

I am buying/selling a property where a heating oil UST was removed. I have the permit from the municipality approving the work and closing the permit. Does this municipal approval certify that the tank did not leak? I am told I need to do soil sampling from the removed tank area to ensure that no contamination is present.

It is common for tanks to be removed without soil testing which can allow the owner to not find a problem. It is loophole in regulations that do not require soil testing after a tank is removed or closed in place.  Your attorney should contact the seller’s side. You can always test the area after purchase, but you would want an addendum that the seller will pay remedial costs if contamination is found.  Regulations place burden on the owner to cleanup so buying a property with contamination would befall the new owner, unless there are contractual obligations requiring seller to address contamination post sale. It is clearly cleaner to have buyer due diligence (soil testing) prior to purchase.

If an oil tank has been removed and showed no visible signs of leaking, should soil samples still be taken? An oil tank was removed and showed no visible signs of leaking, the tank removal contractor did a pressure test and passed. As the buyer of the property, I am concerned that the tank area has not been tested.

To test or not to test an oil tank at time of removal? We get that question almost daily from both owners of tanks and purchasers of a property where a tank will be or was removed. Should you test an oil tank?

Does your dentist test your teeth via x-ray to look for problems? Does a doctor perform testing on patients? Can you determine cholesterol from just the physical appearance of a patient? My point being throughout life you have professionals performing testing to evaluate your health, testing a removed oil tank is the same principal.

The most important question about an oil tank is if it leaked. Owners of tank don’t want to test because they don’t want to find a problem. Buyers want oil tank testing performed because they don’t want to buy a property where an oil tank leaked.

The cost for testing most tanks at time of removal is a couple hundred dollars. Not a budget breaker for sure but finding even a small leak can cost thousands of dollars to address and the party responsible for cleaning up any tank leak is the property owner. So, buying a property with a tank leak (even if the buyer didn’t know if the tank leaked at time of purchase) is the responsibility of the property owner.


Common scenario, buyer want to purchase a home that had prior oil heat. The oil tank was removed previously (tank removed years ago). Sometime the tank was removed by the current property owner, sometime the tank was removed by a previously owner and the current owner was not aware of the liability from oil tanks and didn’t question the lack of testing. Buyer is concerned about buying a home where a tank was removed. So, in addition to performing a home inspection, the buyer wants soil testing completed from the removed oil tank grave. Post removal testing involves drilling and obtaining soil samples from the former tank location. Do we find some level of oil when we test removed tank location, yes. Do we find remediation is required from this testing, sometimes yes. Is the owner shocked when wee find contamination from removed tank areas? Sometimes owners are surprised as they bought the home prior to removal and didn’t view the oil tank as a liability. But there are definitely times where the owner has a hint that oil would be found and was hoping no one would look.

Testing removed tank locations is not as easy as you would expect. As time passes the restored ground returns to normal and little evidence of the tank grave is visible. Owners have selective memory of where the tank was and often point to absurd locations where the tank was removed. This requires sleuthing on our part and performing rows of soil boring to attempt to find the proverbial oil tank in the haystack. Any detection of oil found from a tank area is reported to the state as a spill clearly occurred.

Know before you buy a property that had oil heating. Testing is always advised by tank removal companies (The good ones at least). If testing was not performed, you have to ask, why? Buy a home with an oil tank leak and you just purchased an oil tank cleanup.


Over 20 years’ experience with oil tanks. Want expert advice? Call the experts’ 888-301-1050.

Mold surveys on average can cost $300.00 to $700.00 for a residential dwelling.  Mold inspection costs are contingent on size of the area evaluated and if mold sampling (surface or air sampling) is performed. 

Thorough inspection include not only an experience mold inspector but include infrared evaluation to locate moisture

Commercial mold assessments  can start around $600.00 and go into the thousands of dollars contingent on building size and sampling performed.  Many commercial mold inspection include are sampling to assess overall air quality in the space.   Health concerns driven by employees and tenants in leased spaces dictate compliant rooms where inspection is required.  Vacant commercial spaces that are purchased or have new tenant leases often have mold assessment performed to assess mold risk and as  baseline for overall air quality relative to mold.  In short the longer a space is unoccupied, the greater the likelihood that mold growth will occur.

When is mold sampling necessary?

Mold sampling is completed to verify that a stained surface is mold or mold air sampling is performed to assess for hidden mold or general air quality. 

The photo below shows stained wood supports and there was a question in the real estate transaction if the staining was or was not mold.   Surface tape sampling was performed.  Ultimately the staining was found to be mold, a red flag in the photo are the cobwebs, insects and mold both need moisture to thrive.

When is air sampling for mold necessary?

Many mold inspections are driven by a concern that water damage occurred in a space (either disclosed or suspected).  When mold is suspected but not visible, air sampling is typically performed.   You might have a newly renovated space, which would clearly conceal any evidence of mold either past or hidden, air sampling is very thorough way to evaluate the space.  Even infrared may have a problem if the water source has been addressed, you moisture meters and infrared cameras no matter how expensive can only find moisture when present.  Often times the water issue is repaired but the mold is not remediated.

The photo below shows air testing inside of a ceiling cavity.   The property was under contract and the buyer found permits for demolition and rebuild of the space above due to a water leak.  This portion of the dwelling which was a walk out room had been deconstructed walls and a sheetrock ceiling (newer with obvious repairs).  Air testing was warranted at s the ceiling could not be visually inspected and the space was going to be finished by the new owner.  Long story short, mold was found above the ceiling and remediation was performed at owner's experience. 

Experienced mold professionals know the basis of any mold growth is that for Mold  spores to grow the surface must be moist  Dry areas will not have mold growth.  Just as a room can have different temperatures so can the room have different humidity levels.   The inside of wall cavities are ideal conditions for mold growth.

When do you  perform a mold inspection or mold assessment?

• When purchasing a home
• Unexplained musty odors (mold growth off gassing)
• Spotting on possessions.
• Experiencing health concerns
• Water leak in office or home
• Buying a bank owned home.
• Buying a home that was flipped.

Should I get a mold inspection?

Mold inspections are commonly performed as part of many  residential real estate transactions.  Mold inspections are typically driven by the buyer as opposed  to a requirement  of the mortgage approval process.  There are three main factors that are attributable to the increase in Mold inspections.   The primary driver is consumers being more educated about mold (thank the internet).  The aging housing stock allows for degraded building infrastructure (deferred maintenance) which provides  opportunities for mold to grow.   the reverse of degraded materials is better building techniques and home improvements that create tighter building envelopes that help retain moisture in the built environment, which in turn fuels mold growth.  

The photo below represents deferred maintenance that allowed mold to grow.   To know the exact reason, you would have to speak to one of our environmental managers.

There are a few situations that should make you look for a mold problem.  Mold inspections should be completed on homes that  have been unoccupied for extended periods of time. If a house has been closed up and unoccupied for months or years, humidity most likely has built up inside and caused mold to grow.  All bank owned properties should have a mold inspection performed due to the humidity concerns mentioned above.  Homes that have been flipped or rehabbed should have a mold inspection performed because these homes have a high probability of growth (Most were bank owned) and we have found that often times the mold has been covered over or ignored by the real estate investor.  Flipped homes should have mold inspections with air testing to search for hidden mold.

The piece of furniture in the photo below, has mold growing on it.  The mold manifested itself over a period of weeks after moving into an older rehab home.  Curren found mold behind the newly finished walls and water entry from the foundation wall that was not properly water proofed prior to sheetrock.

 Home inspections typically do not cover mold inspections and most home inspectors are not experienced with mold.

The photo below was flagged for having mold, a part of the photo has mold and  apart is not mold.  Do you know which is which?

Mold inspections should be performed on homes where water damage has occurred either one time or when chronic water issues are present.  Basements and crawlspaces are target rich environments for mold growth.

What affects the cost of a mold inspection?

Two main factors determine the cost of a mold inspection.  Mold inspection costs are based on the time it takes to complete the inspections, simply put larger homes take longer to inspect than smaller homes. If mold testing is needed it will add to the inspection cost as you now have laboratory analysis to pay for and time for the mold professional to interpret the data.

The best mold inspections are professionals that have experience in both mold inspection and remediation.  Finding mold during a mold inspection and following the project through to remediation provides the firm a 360 degree view of the mold problem.  We have completed thousands of mold inspections and remediation and while they all have similarities there are nuisances to each project.  

 Do I need to inspect a  new home for mold? 

New homes should have mold inspection because there is actually a term we use called new home mold.  Mold can grow during the home construction process, the crews working on a new home don't have the experience with mold and accordingly are not aware that growth has occurred.

Why performing a Tank Sweep?

There are many inspections performed when buying a home, and most are cursory visual inspections of the HVAC system, soffits, chimneys, foundation, plumbing, sidewalks, decks, swimming pools, etc.  These building components are commonly evaluated as part of your home inspection.  What is missed by many buyers is the environmental liability aspect of purchasing a home. Environmental can be asbestos, radon, mold, lead paint and oil tanks.  Of all these environmental liabilities, oil tanks represent the biggest risk relative to remedial cost.  A hidden underground oil tank can cost a couple thousands of dollars to a new homeowner if it's not caught during the inspection process.  Worse is when an oil tank leaks, which can lead to costs into the tens of thousands of dollars.

When people are on the fence about doing a tank sweep, all I tell them is not to be surprised that when they sell the home in the future and a tank sweep is performed by that buyer.

Over the past 20 years oil tank sweeps, oil tank scans and/or oil tank inspections have become a common part of the home buying process.

Why perform an oil tank sweep?

Oil tanks belong to a property and if you buy a home with an oil tank you bought all the costs associated with the tank, meaning tank removal, soil testing and most expensive remediation (if required). 

The photo below is a remediation of a leaking oil tank.

Oil heat was popular in the Northeastern United States from the 1930's to the mid 1980's, this time frame encompasses a large part of the homes in the Northeast, meaning chances are the home you are looking to purchase utilized oil heat in the past.  Also homes built before 1930, most likely had oil heat. since coal was phased out as soon  as a homeowner had a chance to switch, since coal required physical feeding the furnace several times a day during the heating season.

More info on Tank Sweeps

What percentage of tank sweeps find prior oil heat?

With over 20 years experience with oil tanks, we have crunched the numbers and find an average of about 75% of the tank sweeps find evidence of prior oil heat.  That number should not be that surprising since natural gas really only became popular in the 1970's.

Who pays for a tank sweep?

Buyers typically pay for the tank sweep as it is part of their due diligence.  Due diligence is what a reasonable person would do to investigate a property for problems prior to ownership.

Do property owners ever do tank sweeps?

Most property owners do not perform tank sweeps as they do not want to find an oil tank.

The photo below shows a tank found by Curren during a GPR scan.   Home built 1978, sold in 2016, with no  tank sweep.

Tank scan with Ground Penetrating Radar (GPR) or metal detector?

You should use both GPR and a metal detector to be thorough when performing a tank scan or tank sweep. Rely on GPR the most as it is what commercial sites use, metal detectors are more to prove that the object found by GPR is metallic.  Remember, the best equipment is the most expensive, an $800.00 metal detector on Amazon.com should not be relied upon.

Metal detectors beep if they find iron sand (a real thing), buried pipes, get too close to a metal fence or a structure with metal (yes homes have metal) or simply encounter buried metallic trash.   GPR uses a screen so the geophysical technician can see the graphical image detected by the GPR antenna.     Larger signals are tanks, smaller signals are usually pipes.

Do you need a Ground Penetrating Radar/ Tank Scan?  Call Curren Environmental Today.

Curren Environmental is a professional environmental consulting firm, follow our top environmentally friendly “Green” changes that you can make to help the environment.

Stop using plastic water bottles.

Plastic from single use water bottles end up in landfills and our bodies of water.  Trillions of pieces of plastic are estimated to be in our oceans.  Fish will consume this plastic and pass it along to humans.

Bottom line: There are many reusable waters bottles you can use to quench your thirst and more than likely your tap water is as pure if not purer than what is in a plastic water bottle.

Start using your reusable shopping bags.

Clearly when states ban plastic bags or charge a tax to use them you know there is a serious issue.   Consumer use of reusable bags is well below 50%.

Bottom Line:   When you go to the store bring your bags and put you phone in a reusable bag.  You won’t forget your phone when you go into the store and now you won’t forget your reusable bag.

LED bulbs are finally affordable. Swap out incandescent bulbs with LEDs

Bottom Line:  LED bulbs use 95% of energy to convert to light so only 5% is wasted.  LED bulbs are on average 80% more efficient that incandescent.  Where can you get an 80% improvement?

Use cold or warm water in your laundry.

Laundry detergent manufacturers have reformulated their products to be as efficient in cold and warm water, hot water is not required.     

Bottom line: Hot water consumes energy and is not necessary for cleaning clothing

Lock all windows.

Bottom Line: Windows are drafty and most windows that are unlocked allow cold air to infiltrate into your home. Drafty homes cause furnaces to work harder costing you more money.

Wrap your hot water heater.

Bottom Line: Layers keep you warm, and although hot water heaters have insulation built in, another layer of insulation will increase the efficiency of your hot water heater, which is used every day.

Residential heating oil tanks are regulated in New Jersey by the New Jersey Department of Environmental Protection (NJDEP). 

On August 6, 2018, the NJDEP adopted new rules governing the administrative and technical requirements for the remediation of a discharge of heating oil from Heating Oil Tank Systems (HOTS) (N.J.A.C. 7:26F). These proposed rule changes have been in the works for years. The old program was called UHOT, the new program is called HOTS.  Tank that fall into the NJDEP HOTS regulations are:

Residential Aboveground heating oil tanks (ASTs). 

Small Aboveground non-residential heating oil tank systems.

Underground Heating Oil Tank System (2,000 gallons or less in capacity).

Generally speaking most HOTS tanks are residential sites.

The idea behind a system for residential sites is to be able to expedite leaks associated with these tanks, as issues with leaking oil tanks arise during real estate transactions.  Ultimately following the HOTS program for a leaking tank will provide the RP (responsible party) typically the owner with a No Further Action  letter (NFA).

The main changes in the UHOT to HOTS regulations are as follows:

• When soils are present above NJDEP standards beneath a residential structure, up to 15 cubic yards can remain in place, which would require a HOTS deed notice. In short, the presence of the contamination would be noted on the deed.  Some buyers may be turned off by this contamination remaining which could affect the value of the property.
• Remedial excavation bottom samples are now determined by the size of the tank as opposed as to the size of the excavation. Previously the number of bottom samples was based on the excavation size J.A.C. 7:26F-3.4(a)2i(1) “ Collect one sample for every six feet of tank length or fraction thereof.  For a 550 gallon oil tank you would take four sidewalls and one bottom.  You would need additional bottom samples if the tank is longer than 6 feet.
• If a remedial excavation extends to within two feet of groundwater or bedrock, a ground water investigation is required;
• If groundwater is not encountered to a depth of 35 into bedrock after 24 hours, no further groundwater remediation is required.
• Confirmatory groundwater sampling is not required if initial ground water results are below the NJDEP Ground Water Quality Standards (GWQS) upon completion of the remediation.

Curren has completed thousands of tank projects, both simple tank removals and remediations.  If you have a HOTS question, contact our office, we offer a free initial consultation.

Monday to Friday 8 AM to 5 PM

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Is my residential heating oil tank regulated in New Jersey?

Heating oil tanks are unregulated by the NJDEP in New Jersey as they used to be called UHOTs (Unregulated heating oil tanks).   Work performed on abandoning an oil tank is governed by the New Jersey Department of Community Affairs (DCA) Bulletin No.: 95-1B. Discharges or leaks from these tanks are regulated by the  Department of Environmental Protection’s Unregulated Heating Oil Tank (UHOT) Program.

Let us not get ahead of ourselves.  First, to work on a heating oil tank in New Jersey you must be licensed by the NJDEP. The NJDEP certifies individuals and firms that perform services on unregulated heating oil tanks.  To be technical, N.J.A.C. 7:14B defines unregulated heating oil tanks as, “any one or combination of tanks, including appurtenant pipes, lines, fixtures, and other related equipment, used to contain an accumulation of heating oil for on-site consumption in a residential building, or those tanks with a capacity of 2,000 gallons or less used to store heating oil for on-site consumption in a nonresidential building.”

To say it in English and following a federal definition, an underground storage tank is defined as a tank the volume of which, including the volume of the appurtenant pipes, lines, fixtures and other related equipment, is 10 percent or more below the ground.

It is generally recommended that if you own out-of-service underground heating oil tank, it is a good practice to remove the tank.   Takes removed from service such as during gas conversions, rarely ever get placed back into service.   Tanks older than 20 to 30 years are also recommended to be removed as nothing lasts forever. Although tank abandonment is allowed, there has been an increase in previously abandoned tanks being removed. These tank removals are driven by insurance and mortgage companies that do not want the liability associated with underground heating oil tanks, as these tanks can leak and remediation can be thousands of dollars.   

New Jersey has construction codes and The Uniform Construction Code (UCC) covers oil tanks, but this code is not a retrofit code, and therefore, it does not deal with tanks that have been abandoned for extended periods of time. The UCC applies when a tank is taken out of service as part of a construction project or when the tank has become unsafe. If a project results in an underground tank being out of service for a period of one year, (such as an oil to gas conversion), as per Section 5704.2.13.1.3 of the International Fire Code (IFC), the tank must be removed from the ground in accordance with Section 5704.2.14 of the IFC or abandoned in place in accordance with Section 5704.2.13.1.4 of the IFC. If an aboveground tank is out of service for a period of one year, as per Section 5704.13.2.3 of the IFC, the tank shall be removed in accordance with Section 5704.2.14 of the code.

An oil to gas conversion is an example where a construction activity can trigger the need to address the oil tank.  In this case, the local code officials must ensure that the tank is properly removed or abandoned in connection with the conversion.*

* The only exception to this would be where the owner can demonstrate a legitimate continued use of the tank.

The removal or abandonment of a tank requires an application for and the issuance of a demolition permit regardless of whether it is in connection with other related work. In short, if you are removing or abandoning an oil tank you need a permit.

Oil tank removal and abandonment inspections are the responsibility of the of the fire sub-code official as per the IFC, Section 5704.2.13, fuel oil storage systems, as referenced by the International Mechanical Code (Section 1301.5) and the International Residential Code (Section M2201.7). Per N.J.A.C. 5:23-3.4.

Proper Abandonment Procedures are detailed in the International Fire Code, Section 5704.2.13.1.4, the American Petroleum Institute (API) Bulletin 1604, and National Fire Protection Association (NFPA) 30 Annex C relating to the abandonment of underground storage tanks. These documents, which detail procedures for tank abandonment are followed by New Jersey’s applicable regulation as listed in N.J.A.C. 5:23-3.6.

Tank Leak Assessment

The construction regulations are not clear regarding who, what, when or how the assessment of a tank for leaks is performed as it is generally not considered a construction activity.  The construction regulations do define that WHEN contamination is found it is to be reported to the NJDEP hotline at 877-927-6337 (877-WARN-DEP).  This is the bear trap owners of tanks face when a tank is removed.  NJDEP regulations chapter 26F HEATING OIL TANK SYSTEM REMEDIATION RULES  Statutory Authority N.J.S.A. 13:1D-9, 58:10-23.11 et seq., 58:10A-1 et seq., 58:10A-21 et seq., 58:10A-37.1 et seq., 58:10B-1 et seq., and 58:10C-1 et seq.  Date last amended August 6, 2018, state that:

"Upon discovery of a discharge, the owner shall immediately notify the Department by calling the Department Hotline at 1-877-WARNDEP (1-877-927-6337)."

Therefore, under the NJDEP requirements the owner upon discovering a tank leak must notify the NJDEP spill hotline.

Construction Permit Approval

The most misunderstood part of the tank closure process is the sign off from the local municipality.  As per the New Jersey Department of Community Affairs (DCA) Bulletin No.: 95-1B after tank has been removed and properly disposed of, and the excavation is filled with certified clean material, a certificate of approval can be issued by the local construction office and the permit can be closed out.    So once you follow the construction procedures the township can close the permit, if the tank leaked or not.  Again once, you remove and backfill the tank, the municipality is done with their job. Any remediation activity, including the removal of contaminated soil, will then proceed through the Department of Environmental Protection’s Unregulated Heating Oil Tank (UHOT) Program.

Does all this sound confusing?  It should not but it does and the layperson should not be expected to know these procedures or regulations but they are subject to them.

If you want clear-cut answers, call Curren we have been performing tank closures for over 20 years.   Thousands of completed tank projects have made us de facto experts on tanks.

 A construction permit is required and it can take up to 20 business days to get the permit, which is a month.

 I thought that my out of use tank could remain where it was buried.  Nope, the buyer of my house needed a mortgage and to get the mortgage to buy my house, the tank had to be removed. Their attorney also advised that it be removed.   Yep found this out 9 days before settlement.  Did not know the tank removal permit took weeks to get.   Settlement eventually happened but it was 4 weeks later.

A tank removal report is important.

Had my tank removed no leaks.  Listed house for sale, buyer wanted proof that the tank did not leak.  I had a copy of the contract for the removal and I had a paid tank removal invoice, that was not enough,. The company I hired to remove the oil tank did not give me a report.  Stupid me the contract for removal did not include a report.   I had to pay another company to dig up the old tank grave, test the soils, and give me a report that the tank did not leak.  Apparently, buyers want 100% confirmation that the tank did not leak.  I mean it makes sense you want a report of the tank removal if you are buying a house, but why didn’t the tank removal company tell me that or give me one? 

Tank removal soil sampling is really important.

I was told I did not have to soil test when the tank is removed.  Apparently, testing is not required by law.  Well I removed the tank and it leaked and the immediate diagnosis was $10,000.00 to $15,000.00 to remediate the leak.  When I mean immediate, I mean I had an estimate to clean up the tank leak 2 days after the tank was removed.   I ultimately fired the tank removal company and hired another company.  The new company told me that you could not conclude 100% if remediation is necessary without soil testing.   Bottom line I got the soil tested, yes there was oil; no, it was not enough oil to demand remediation.  Saved the $10,000.00.  Couldn’t the company tell me that testing while not required is worth it if the tanks appears to have leaked.

Not all oil leaks mean you have to remediate.

As I learned, a hole in a tank only means that the company that removed the tank is going to give me an expensive quote to clean up the oil.  Apparently there are legal amounts of oil that can remain in the ground, kind of like good and bad cholesterol, but you would never know unless you test.

How excited the tank removal company crew would become after they removed my tank and found out it was leaking.

Got my oil tank removed, took the day off from work. The whole thing was very stressful as I bought the house with a sand filed tank and now 10 years later I am selling the house and the buyers want the tank removed.   When the tank was removed and I saw holes in the tank, my heart sank.  The mood of the tank workers was elevated when they saw the holes in the tank   You would think the Philadelphia Eagles won a 2^nd super bowl.   I feel like they were leading me down a path to spend money I didn’t plan for or have.   Look I understand tank leaks but I was never told about what happens when a tank leaks.  It was upsetting that they were happy for by problems.

Getting something in writing is really important.

I hired a tank company to do my tank removal.  They talked a good game and had a very good price.   They had a 2-page proposal, it was brief and somewhat vague now that I think about it.  Well when I found out my tank leaked soil testing which I thought was done or would be done (we did speak about it) was not done.  They actually took a soil sample but it was not for determining if the oil level in the ground was legal it for the disposal of the soil.  I was presumed guilty.    I was more than a little miffed; I didn’t want to pay the bill until I got a report of removal.  I didn’t get that either.  I complained to an attorney who reviewed my 2-page quote.  I was told if it is not in the contract the company doesn’t have to do it.  So, I got no testing and no report, but I was told I would if in the small chance my oil tank leaked.   It was a case of he said she said, the attorney agreed it was deceptive but not worth the money to go after legally.

The cheapest price is not the best.

I figured a tank is a tank is a tank, so a tank removal is a tank removal.  I picked the least expensive company.  I thought I compared apples to apples and was picking the shiniest apple.  Well my tank leaked and I was up charged more than 5 times what the cost to remove the tank was.    What I learned from one of the tank company workers who needed to use my bathroom was the company doesn’t make money removing oil tanks.  The cleanup is much more profitable and their goal is to get as many tank removal projects  as possible, which increases their odds of finding a leaking tank.   They are supposed to call the office once they know a tank leaked, I guess to toast to their good fortune but not mine.

These seven snippets of experiences all came from clients of Curren who had their tank removed by another company.

Do something once and you are a novice.

Do something twice, well you are not a pro but you know more than you did the first time.

Bottom line, we have been performing tank projects for over 20 years.  Thousands of tanks tested, removed, and remediated.   Referrals are our largest source of work and we don’t advertise, no ads on the internet promoting Curren Environmental.     We do get many calls from people who after reading our web site and speaking to us wished they called us first for their tank removal.

If you have a tank and you want solid advice and your work professionally done, call our office.  We provide free consultation and estimates.  We have no sales people and 20 years of satisfied clients.  You can be the next one.

Monday to Friday 8:00 am to 5:00 pm   

888-301-1050