Slide 2 Home with an Underground Heating Oil Tank (UST)
Solutions for your Leaking Heating Oil Tank Slide 3 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) Slide 4
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) Slide 5 Oil stains
near the Fill Pipe DOES NOT mean a Tank has leaked. Home with an
Underground Heating Oil Tank (UST) Slide 6 As the Tank ages, it
will eventually leak. Home with an Underground Heating Oil Tank
(UST) Slide 7 Soil Permeability, Porosity, Ground Water (if
present), and Topography will determine the speed and direction the
Oil Plume will travel. DOWN GRADIATIANT Home with an Underground
Heating Oil Tank (UST) Slide 8 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) Slide 9 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.
Slide 10 Home with an Underground Heating Oil Tank (UST) The Tank
is then carefully excavated from the ground. Slide 11 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. Slide 12 10 to 20 feet 5 to 10 feet Up to 15 feet or
more in depth In this process: All accessible Contaminated Soil is
excavated and transported to an approved disposal facility. Cleanup
Option A: Excavation of Contaminated Soil Excavations vary in size
depending severity of the leak. Slide 13 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. 10 to 20 feet 5 to 10 feet Up to 15 feet or more
in depth Cleanup Option A: Excavation of Contaminated Soil Slide 14
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. 10 to 20
feet 5 to 10 feet Up to 15 feet or more in depth Cleanup Option A:
Excavation of Contaminated Soil Slide 15 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. Slide 16 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. Slide 17 First: 2 inch Ports are
installed and cut flush with the ground level. Cleanup Option B:
Bio-Remediation A gravel bed helps spread the Remediating Bacteria.
Slide 18 Next: Bio-Remediation & Oxygen is introduced into
these ports over a period of time. Cleanup Option B:
Bio-Remediation Slide 19 After several applications, the Soil will
become more saturated with Oxygen and Remediating Bacteria. Cleanup
Option B: Bio-Remediation Slide 20 Amount of Treatments and the
length of time for Remediation to occur, depends on severity of
contamination at each site. Cleanup Option B: Bio-Remediation Slide
21 Over a period of time, the Contamination will degrade and
dissipate. Cleanup Option B: Bio-Remediation Slide 22 After the
initial phase of Applications, the Ports will be cut and capped
flush to the ground. Cleanup Option B: Bio-Remediation Slide 23
These Ports can be accessed in the future for additional
Bio-Applications if necessary. Cleanup Option B: Bio-Remediation
Slide 24 Cleanup Option A: Excavation of Contaminated SoilCleanup
Option B: Bio-Remediation PROS: Less intrusive to Property.
Generally Less expensive. CONS: May take a few years to complete.
PROS: Remediation takes less time. CONS: More intrusive to the
Property and Utilities. Generally more expensive. Slide 25 End of
Presentation
