Underground Storage Tank Locating,
Soil Sampling, Oil Tank Removal and Decommissioning Services
Underground Storage Tank Locating Service
Underground Storage Tank locating services are conducted with the utilization of a Fisher model TW6 locator. This method is a non-evasive method which detects large metallic objects beneath the earth’s surface. We will be able to find your underground oil tank.
Underground Storage Tank Soil Sampling
Underground storage tank soil sampling is conducted using the Geo-probe method. This method enables us to collect a soil sample along the sides of the tank while the tank remains in place.
Underground Storage Tank Decommissioning
Envirotech offers free on site estimates to determine the scope of work necessary to remove your oil tank. Scope of Work generally includes the following:
- Obtaining of necessary permits
- Coordination with notification of Fire Marshall where necessary
- Obtaining a Call before you dig number as required by the State of Connecticut
- Removal of any remaining oil or sludge from the tank with our vacuum truck
- Tank removal
- Field analysis of soil samples after tank removal for underground tanks
- Placement of clean fill
- Environmentally cleaning, transport and disposal of tank
- Lab analysis of soil samples
- Tank closure report filed with state and local officials
The following scenarios may be an indication that you have a leaking tank.
- Most leaks go undetected until the tank has been removed from the ground however, in the event a catastrophic release the following instances may apply.
- Your fuel bill increases. This will be indicated by the increase in fuel consumption even though there hasn’t been a distinctive change in weather.
- Plant life around the tank is dying.
- If you notice staining around the fill pipe.
- The smell of petroleum in the house.
- When it rains you see rainbow colors on standing water or puddles of water.
Causes of leaks or releases:
- Underground tanks leak due to rust and decay or due to the frost shifting.
- Leaking fittings.
- Accidentally broken lines that feed the tank to the heating system.
Residential and commercial underground storage tanks have historically have been the source of many environmental problems as their life expectancy is approximately 15 years. Life expectancy depends greatly on the tanks location. A leaking underground storage tank may potentially contaminate groundwater and impact well water. Often a leaking underground storage tank goes undetected until the tank is removed from the ground.
Fuel Storage Tanks
Envirotech of Fairfield County Inc. removes and replaces Underground Fuel Storage Tanks (UST) and Above Ground Storage Tanks (AST) as well as the remediation as necessary. They understand that to remove a fuel tank is more than just an isolated issue. They are professionally trained and certified to check your tank for heating oil leaks, improper workmanship and defective materials. They can use a tool known as a geoprobe to test the soil around the tank to test for leaching of petroleum products into the soil. EnviroTech uses metal detectors to determine the presence of an underground tank.
Leaking underground storage tanks can cause indoor air pollution and can potentially contaminate drinking water and soils. Often a leaking UST (Underground Fuel Storage Tanks) will not be detected unless the tank is removed from the ground.