Steps to Take When Your Underground Petroleum Storage Tank Leaks
Underground petroleum storage tanks (USTs) are common in many industries, especially at gas stations and industrial sites. When these tanks leak, they pose serious risks to the environment, public health, and property. Detecting and responding to a leak quickly can prevent costly damage and legal issues. This guide explains what to do if you discover your underground petroleum storage tank is leaking, with clear steps to protect yourself and the environment.
Recognize the Signs of a Leak
Leaks from underground petroleum tanks often go unnoticed until damage occurs. Knowing the warning signs helps you act fast:
Unexplained fuel odors near the tank or property
Sudden drops in fuel inventory without corresponding sales
Stained or discolored soil around the tank area
Dead vegetation or unusual plant growth near the tank
Groundwater contamination detected in nearby wells or water sources
If you notice any of these signs, treat them seriously and start investigating immediately.
Stop the Source and Secure the Area
Once you suspect a leak, your first priority is to stop further release of petroleum:
Shut off fuel supply to the tank if possible
Stop all dispensing operations to prevent more fuel from entering the tank
Mark and secure the area to keep people and vehicles away from the contamination zone
Notify onsite personnel and management about the leak
Safety is critical. Petroleum leaks can cause fire hazards and health risks, so avoid ignition sources and wear protective gear if you must enter the area.
Contact Environmental and Regulatory Authorities
Leaking underground petroleum tanks are subject to strict regulations. Reporting the leak promptly helps you comply with the law and access support:
Inform your local environmental protection agency or equivalent authority
Report to fire department or emergency services if there is a risk of fire or explosion
Notify your insurance provider to start claims processing
Keep detailed records of all communications and actions taken
Authorities may require you to conduct testing and cleanup under their supervision.
Conduct a Professional Leak Assessment
A thorough assessment by qualified environmental consultants is essential to understand the extent of the leak:
Soil and groundwater sampling around the tank area
Tank integrity testing to confirm the leak source
Risk evaluation for nearby water supplies and ecosystems
Mapping contamination spread to plan cleanup
This assessment guides the next steps and helps estimate costs and timelines.
Plan and Execute Cleanup and Repair
Cleanup of petroleum leaks involves removing contaminated soil and treating affected groundwater:
Excavate contaminated soil and dispose of it according to hazardous waste regulations
Install groundwater treatment systems if contamination has spread
Repair or replace the leaking tank to prevent future leaks
Monitor the site regularly after cleanup to ensure contamination does not return
Cleanup can take weeks to months depending on the severity of the leak.
Prevent Future Leaks with Regular Maintenance
After resolving a leak, preventing future problems is key:
Schedule routine inspections of tanks and piping
Use corrosion-resistant materials and protective coatings
Install leak detection systems with alarms
Train staff on proper tank operation and emergency response
Keep accurate records of maintenance and inspections
Proactive care reduces the risk of leaks and costly repairs.
Understand Legal and Financial Implications
Leaking underground petroleum tanks can lead to significant legal and financial consequences:
Fines and penalties from environmental agencies for non-compliance
Cleanup costs that can reach hundreds of thousands of dollars
Property value loss due to contamination
Potential lawsuits from neighbors or affected parties
Having insurance coverage and legal advice helps manage these risks.
Contact Wolfpack Environmental Solutions (562) 231-7339 for any CUPA or DTSC compliance assistance.
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