Soil Remediation

Soil Remediation


Also known as soil washing, soil remediation is a strategic process aimed at removing contaminants from the ground such as heavy metals, cyanides, pesticides, creosote, volatiles, semi-volatiles and hydrocarbons (fuel residues and petroleum). Oil Tank Solutions is a top New Jersey soil remediation and oil tank removal specialist that keeps soil standards clean, while maintaining safe, high qualities safeguarding residential properties and promoting the wild flora and fauna.

Types of Soil Remediation in New Jersey

There are four primary types of soil remediation: bioremediation, thermal soil remediation, air sparging and encapsulation. Based on the various pollutants in the ground, our soil remediation service providers will determine the best techniques to get the job done.

Bioremediation relies on biological approaches to remediate the soil. The process breaks down hydrocarbons in the soil and causing the microbes to die. In our New Jersey winter months when temperatures are above 70 degrees, the soil should first be insulated and covered for a more effective treatment. The colder the weather is, the longer it is to perform soil remediation using the bioremediation method.

Thermal soil remediation heats the contaminated soil into the PTU thus causing hydrocarbons to evaporate. Temperatures can range from 650° F to 900° F and is generally determined based on the degree of contamination.

Air sparging involves injecting massive volumes of air into the contaminated soil to push organic vapors out where they are triaged by carbon filtering. Based on the depth of the pollution and contamination levels, the time frame for air sparging soil remediation varies.

Encapsulation is a soil remediation technique that works by separating contaminants in the ground. In most cases, lime is blended into the toxic soil with concrete and cement thus preventing the hazardous elements from spreading to healthy soil. One thing to be aware of: if you opt for the encapsulation soil remediation method, you will not be able to use the soil for cultivation.

Some contractors may talk you into soil testing or collecting soil samples prior to oil tank removal. Soil samples should ONLY be collected if the underground storage oil tank is determined to be leaking once it is removed from the ground,

There are four key things to look for when determining if the underground storage tank has leaked once it has been removed:

  • Tank Solutions technicians and town inspectors will look to see if there are any corrosion holes in the oil tank, as this is usually the first sign that oil may have leaked.
  • Tank Solutions and town inspectors will look at the excavation area once the oil tank is removed from the ground; looking for soil discoloration.
  • Strong oil odour in the excavation.
  • The final indication of a leaking oil tank is if groundwater is present in the excavation and has an oily sheen.

If any one or all of the above occur during the oil tank removal process and the Township Official fails the tank, we are required to take the following steps in for soil remediation.

STEP1. Contact

The New Jersey Department of Environmental Protection (NJDEP) and get a soil remediation case number for the property. The NJDEP is the government body that sets the standards for oil tank removal and soil remediation.

STEP2. Sub Surface Evaluation

Tank Solutions has on staff a Sub Surface Evaluator and a Licensed Site Remediation Professional (LSRP) who oversees the remediation project from beginning to end. We do not delegate something this important to an outside consultant.

STEP3. Excavation of Site

Once the noticeably contaminated soil is removed, field screening will be performed to determine if all contamination has been excavated. Once the soil is screened and determined to be clean, then soil samples will be collected from the excavation area and final soil testing will be completed, to determine if any additional soil remediation is required.

STEP4. Completion of work

The open excavation is then backfilled with certified clean fill, graded and grass seed and hay are put down. When the analysis of the samples is completed by a State Certified Laboratory and returned to Tank Solutions, we then generate a report for the home owner and the NJDEP. Once the NJDEP has all the appropriate paperwork showing the removal of the oil tank and the completion of all soil remediation, they then issue a certificate to indicate that everything was completed to their satisfaction.

Finding a leaking oil tank, having to go through digging up your property to remove the oil tank and then going through a complete remediation process is not easy. We want you to know that WE ARE WITH YOU EVERY STEP OF THE WAY! We are always available to answer questions as a responsible & helpful soil remediation company in NJ. We try to make process as smooth as it can possibly be under the circumstances.