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Home with an Underground Heating Oil Tank (UST) PowerPoint PPT Presentation


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Solutions for your Leaking. Heating Oil Tank. Home with an Underground Heating Oil Tank (UST). Vent & Fill Pipes are the visible signs that there is a Heating Oil Tank at this home. Home with an Underground Heating Oil Tank (UST).

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Home with an Underground Heating Oil Tank (UST)

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Home with an underground heating oil tank ust

Solutions for your Leaking

Heating

Oil

Tank

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

Vent & Fill Pipes are the visible signs that there is a Heating Oil Tank at this home.

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

This cut-a-way view shows a typical Heating Oil Tank installation. Tanks are usually placed approximately 2 feet below the ground.

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

Oil stains near the Fill Pipe DOES NOT mean a Tank has leaked.

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

As the Tank ages, it will eventually leak.

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

DOWN GRADIATIANT

Soil Permeability, Porosity, Ground Water (if present), and Topography will determine the speed and direction the “Oil Plume” will travel.

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

To determine if a Tank has leaked, Soil Samples are taken from opposite ends of and below the Tank .

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

The remedy for a leaking Tank starts with pumping out the Tank. Next, the top is exposed and the interior cleaned in preparation for excavation.

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

The Tank is then carefully excavated from the ground.

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

Once the Tank is removed, you have

Two Options to deal with the remaining Contaminated Soil.

A.) Excavation of the Contaminated Soil.

B.) Bio-Remediation Treatment of the Soil.

Home with an Underground Heating Oil Tank (UST)


Home with an underground heating oil tank ust

Cleanup Option A: Excavation of Contaminated Soil

In this process: All accessible Contaminated Soil is excavated and transported to an approved disposal facility.

5 to 10 feet

10 to 20 feet

Up to 15 feet or more in depth

Excavations vary in size depending severity of the leak.


Home with an underground heating oil tank ust

Cleanup Option A: Excavation of Contaminated Soil

This method is recommended if a property is going to sell within 5 years. This option permits rapid site closure if the impacted Soil can be removed and clean samples obtained.

5 to 10 feet

10 to 20 feet

Up to 15 feet or more in depth


Home with an underground heating oil tank ust

Cleanup Option A: Excavation of Contaminated Soil

The disadvantage to this method is that it can be damaging to surrounding landscape, driveways, decks, etc. Below the surface, sewer lines, water lines and utilities could be impacted.

5 to 10 feet

10 to 20 feet

Up to 15 feet or more in depth


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

Bio-Remediation is less intrusive than Excavation, but should be considered when a house will not be sold within the next 5 years.


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

This is an acceptable method by Regulatory Agencies. It can be done as an alternative to Excavation or as enhancement when Soil is not accessible for Excavation.


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

First: 2 inch Ports are installed and cut flush with the ground level .

A gravel bed helps spread the Remediating Bacteria.


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

Next: Bio-Remediation & Oxygen is introduced into these ports over a period of time.


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

After several applications, the Soil will become more saturated with Oxygen and Remediating Bacteria.


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

Amount of Treatments and the length of time for Remediation to occur, depends on severity of contamination at each site.


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

Over a period of time, the Contamination will degrade and dissipate.


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

After the initial phase of Applications, the Ports will be cut and capped flush to the ground.


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

These Ports can be accessed in the future for additional Bio-Applications if necessary.


Home with an underground heating oil tank ust

Cleanup Option B: Bio-Remediation

Cleanup Option A: Excavation of Contaminated Soil

PROS:Remediation takes less time.

CONS:More intrusive to the Property and Utilities.

Generally more expensive.

PROS:Less intrusive to Property.Generally Less expensive.

CONS:May take a few years to complete.


Home with an underground heating oil tank ust

End of Presentation


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