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On average, residential cleanups only involving soil are approximately $9,000.00. These cleanups normally take 2 weeks because of a waiting period with soil sample results from the lab. If the tank has failed inspection, the property must be reported to the state. At that time, the property will be issued a case or "spill" number.
An investigation, remediation, and closure report is mandated in order to lift the spill number issued by the state. The process for a soil remediation is as follows:
Day One:
We remove the oil tank; we then remove all contaminated soil and stockpile on top of plastic. Utilizing a special tool (PID Meter) we will only remove all soil above acceptable levels of TPHC (Total Petroleum Hydro Carbons). Once we feel we have removed all the contaminated soil, we take soil samples from the sidewalls and base of the tank excavation.
These samples are called Post Excavation. Post Excavation Samples prove that the tank void soils previously contaminated have been removed and the remaining soils are free of any hydrocarbons. We then bring in certified clean soil and backfill void. The soil must be certified because this proves to the state we are only bringing in clean fill and the documented amount.
We then take a sample from the contaminated stockpile, this is called a waste classification. The waste classification is analyzed and the results are sent to a facility that will accept the contaminated soil. We then cover the contaminated stockpile with plastic.
Day Two:
Post Excavation & Waste Classification normally takes 7–14 days. Once we have permission from the soil disposal facility, we then load out contaminated soil into trucks and bring it to the facility where it is burned, removing all hazardous chemicals from soil.
Day Three:
We return to the property to cleanup the site. Next, we take all clean fill receipts, soil, and sludge manifests, scrap disposal documentation, pictures taken throughout the project, analytic results of soil samples, a written day-by-day diary of the worked performed and scope of work completed, bind together with a memorandum of agreement and submit to the state. This is called a Closure Report. Once the state has reviewed this report, they issue a No Further Action letter lifting the spill or case number.
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