Underground Tank Removal Process
''Tanks Be Gone' provides underground oil tank removal services throughout Connecticut.
Underground tanks can deteriorate over time, increasing the risk of leaks, contamination, and complications during property sales.
The process below outlines what to expect during underground tank removal, from permits and utility marking to excavation, testing, inspection, and certification.
1. Permits
Most towns require local permits for underground oil tank removal.
We contact the Fire Marshal and/or Building Department to obtain permits and schedule inspections.
2. Utility Mark-Out (CBYD-811)
An outline is performed to facilitate a CBYD 811 utility markout and to assist with planning and determining the equipment required. Before excavation, underground utilities must be located by law.
This allows utility companies to mark underground lines such as:
Gas
Water
Sewer
Electric
Phone
Cable
Property owners are asked to identify known private lines such as sprinkler systems, exterior lighting, drainage systems, or electronic pet fencing that he or she is aware of.
3. Excavation & Tank Cleaning
We excavate soil to expose the underground tank. Most tanks are buried 2 to 4 feet below ground level.
After exposure, the tank atmosphere is tested for combustible vapors. If necessary, an inert gas is introduced to eliminate combustion risk before cutting.
The tank is opened and cleaned by removing all liquids and sludge. When required, the entry opening allows a technician to enter the tank for cleaning.
All liquids and waste generated during cleaning are transported to an approved waste-oil recycling facility.
4. Tank Inspection & Soil Sampling
Once cleaned, the tank is lifted from the ground for inspection.
The local fire official inspects the tank and excavation area. If no leaks or contamination are found, soil samples are collected and the excavation is backfilled and compacted with proper material.
At this time, the local fire marshal or building inspector performs and inscription of the oil tank and tank grave.
5. Tank Removal Certification
After site work and laboratory results are complete, we prepare a Tank Closure Report that includes a tank removal certification.
The report includes:
Copy of the local tank removal permit (when required)
Step-by-step photo documentation of the removal process
Fire Marshal comments
Observations of tank condition and signs of contamination
Description of removal activities
Tank disposal documentation
Laboratory soil testing results from a state-approved lab