
This guide provides comprehensive information on storage tank insurance and bonding requirements across multiple states. These states include CA, TX, AK, NM, ND, PA, OK, and others. It explains federal regulations and state-specific rules. It also highlights the critical importance of proper pollution liability coverage.
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The Hidden Cost of Inadequate Storage Tank Insurance: A Comprehensive Guide to Compliance Requirements
When Cutting Corners Leads to Catastrophe
The morning of , started like any other day for Mike Henderson, owner of Henderson’s Service Station in rural Pennsylvania. For nearly thirty years, his family-owned gas station had been a cornerstone of the community, serving generations of loyal customers. But that morning, everything changed when a neighboring property owner noticed the smell of gasoline near their water well.
What followed was every business owner’s nightmare. An inspection revealed that one of Mike’s aging underground storage tanks had been slowly leaking for months, perhaps years. The diesel fuel had migrated through the soil, contaminating not only his property but also the groundwater of three adjacent properties. The estimated cleanup cost? Over $850,000. The cost to compensate neighboring property owners for their damages and provide temporary water supplies? Another $200,000.
The worst part? Mike had assumed his general commercial liability insurance would cover such incidents. It didn’t. Like many small business owners, he had never secured proper storage tank pollution liability insurance, believing it was an unnecessary expense. Within eighteen months, Henderson’s Service Station closed its doors forever, a victim of insufficient financial planning and inadequate insurance coverage.
Mike’s story is not unique. According to the Environmental Protection Agency (EPA), there have been over 532,000 confirmed leaks and releases from underground storage tanks (USTs) in the United States since 1988. The average cleanup cost ranges from $130,000 to well over $1 million when groundwater contamination is involved. Yet countless business owners remain dangerously unaware of their financial responsibility requirements or operate under the false assumption that their existing insurance policies provide adequate protection.
📋 Key Takeaways
- Standard general liability insurance does NOT cover storage tank pollution – specialized coverage required
- Federal minimum coverage: $1 million per occurrence for petroleum marketers, $500,000 for others
- Average cleanup costs: $130,000 to $1+ million depending on contamination extent
- California 2025 update: State fund no longer acceptable as sole financial responsibility mechanism
- Arizona & Texas: State funds phased out – private insurance now required
- Tanks over 20 years old: Increasingly difficult to insure, require proactive planning
- 36 states offer state assurance funds as alternative to private insurance
- Penalties for non-compliance: Delivery prohibition, fines, and personal liability for cleanup
Table of Contents
- Understanding the Federal Framework for Storage Tank Financial Responsibility
- The Critical Importance of Proper Insurance Coverage
- State-by-State Requirements
- California: The Underground Storage Tank Cleanup Fund
- Arizona: Transitioning from State Fund to Private Insurance
- Texas: Strict State-Specific Requirements
- Nevada: Active State Fund Program
- New Mexico: Comprehensive State Fund Coverage
- North Dakota: Insurance Department-Administered Fund
- Oklahoma: State Corporation Commission Oversight
- Wyoming: State Fund Program
- Pennsylvania: Comprehensive State Program
- Above Ground Storage Tank (AST) Considerations
- The Evolving Insurance Marketplace: Challenges and Solutions
- Compliance Best Practices: Protecting Your Business
- Working with CVI: Your Partner in Storage Tank Insurance and Bonding
- The Cost of Inadequate Coverage: Lessons from Real-World Cases
- Frequently Asked Questions About Storage Tank Insurance
- Conclusion: Protecting Your Business Through Proper Insurance and Compliance
Understanding the Federal Framework for Storage Tank Financial Responsibility
Before diving into state-specific requirements, it’s essential to understand the federal baseline that applies across all states. The EPA established comprehensive regulations under Subtitle I of the Resource Conservation and Recovery Act (RCRA) that govern underground storage tanks containing petroleum or certain hazardous substances.
What Qualifies as a Storage Tank?
The EPA’s definition of an underground storage tank might surprise many business owners. An UST is defined as any tank and underground piping connected to the tank that has at least 10 percent of its combined volume underground. This means a tank that appears to be above ground could still be classified as an UST if enough of its piping system is underground.
Above ground storage tanks (ASTs) are also subject to regulations, though requirements vary more significantly by state. Generally, ASTs containing petroleum products in quantities of 1,320 gallons or more in a single tank, or an aggregate capacity of more than 1,320 gallons, may be subject to Spill Prevention, Control, and Countermeasure (SPCC) regulations and state-level insurance requirements.
Federal Financial Responsibility Requirements
Under 40 CFR Part 280, Subpart H, underground storage tank owners and operators must demonstrate financial responsibility to cover costs associated with:
Corrective Action Coverage: The ability to pay for cleanup and remediation of releases from the tank system. This includes soil excavation, groundwater treatment, monitoring, and restoration activities.
Third-Party Liability Coverage: Compensation for bodily injury and property damage sustained by third parties as a result of releases from the UST system. This can include damages to neighboring properties, contamination of private water wells, and natural resource damages.
The minimum coverage amounts required under federal regulations are:
- For petroleum marketers (gas stations, convenience stores with fuel): $1 million per occurrence, with an annual aggregate of $1 million
- For all other petroleum UST owners/operators: $500,000 per occurrence, with an annual aggregate of $1 million
Important Note: These are minimums. Many states require higher coverage levels, and the actual costs of cleanup and third-party damages often exceed these amounts significantly.
Approved Mechanisms for Demonstrating Financial Responsibility
Tank owners and operators have several options for meeting financial responsibility requirements:
- Insurance Coverage: The most common method, involving specialized pollution liability insurance policies
- State Assurance Funds: Participation in state-operated financial assurance programs (where available)
- Surety Bonds: Performance bonds issued by licensed surety companies
- Letters of Credit: Standby letters of credit from qualified financial institutions
- Financial Test of Self-Insurance: Available only to entities meeting specific financial criteria
- Corporate Guarantees: From parent companies meeting financial test requirements
- State-Required Mechanisms: Specific to individual state programs
- Trust Funds: Assets set aside in qualified trust accounts
For most small to medium-sized businesses, insurance or state fund participation represents the most practical and cost-effective approach to compliance.
The Critical Importance of Proper Insurance Coverage
Standard commercial general liability (CGL) policies almost universally exclude pollution-related claims. This exclusion means that even businesses with robust insurance programs may find themselves completely unprotected when a storage tank leak occurs.
Storage tank pollution liability insurance is specifically designed to fill this gap, providing coverage for:
- On-site and off-site cleanup costs: Including emergency response, soil excavation, groundwater remediation, and long-term monitoring
- Third-party bodily injury: Medical expenses and damages for individuals harmed by exposure to released substances
- Third-party property damage: Compensation for contaminated properties, lost property values, and business interruption of affected parties
- Legal defense costs: Attorney fees, expert witnesses, and court costs for defending against claims
- Natural resource damages: Costs associated with damage to fish, wildlife, or vegetation
- Regulatory compliance costs: Expenses related to meeting regulatory requirements during and after a release
Market Challenge: The insurance market for storage tanks has become increasingly challenging in recent years. Tanks older than 20 years are difficult to insure, with premiums increasing substantially and deductibles rising. Some carriers refuse to insure tanks over 25-30 years old regardless of their condition or upgrade status. This creates a critical vulnerability period where tank owners may struggle to maintain required coverage.
State-by-State Requirements: California, Arizona, Texas, Nevada, and Beyond
Each state has developed its own approach to storage tank regulation and financial assurance, creating a complex landscape for multi-state operators. Let’s examine the specific requirements for the states you need to know about.
California: The Underground Storage Tank Cleanup Fund
California operates one of the most comprehensive storage tank programs in the nation through its Underground Storage Tank Cleanup Fund (USTCF), administered by the State Water Resources Control Board.
Critical 2025 Update: California UST owners must demonstrate financial responsibility through approved mechanisms. The state fund was historically accepted by the EPA as a standalone mechanism for meeting federal financial responsibility requirements. However, significant changes took effect January 1, 2025: owners and operators of permitted tanks can no longer use the USTCF as their sole mechanism for demonstrating financial responsibility compliance.
This means California tank owners must now secure private insurance, surety bonds, or other approved mechanisms in addition to, or instead of, relying solely on the state fund. The USTCF continues to provide reimbursement for eligible cleanup costs and third-party claims for qualifying releases, but it can no longer serve as the proof of financial responsibility.
Coverage Requirements:
- Corrective action coverage: Up to $1 million per occurrence
- Third-party liability coverage: As required by federal regulations
- Tank owners must maintain current permits and demonstrate compliance with all applicable regulations to receive fund reimbursement
California tank owners should work closely with specialized insurance brokers to secure appropriate pollution liability insurance that meets both federal and state requirements. The state maintains detailed information about financial responsibility requirements at the California State Water Resources Control Board website, and tank owners can find approved insurance providers through the EPA’s list of insurance providers.
Arizona: Transitioning from State Fund to Private Insurance
Arizona previously operated the Underground Storage Tank Assurance Program (AZUSTAP), which provided financial assurance for eligible tank owners. However, Arizona phased out new enrollment into its state fund program, joining several other states in transitioning away from state-operated financial assurance mechanisms.
Current Requirements:
Arizona tank owners must now demonstrate financial responsibility through private insurance, surety bonds, letters of credit, or other federally approved mechanisms. The Arizona Department of Environmental Quality (ADEQ) administers the state’s UST program and has aligned its technical requirements with federal regulations.
Coverage Levels:
- Follow federal minimum requirements ($1 million per occurrence for petroleum marketers, $500,000 per occurrence for others)
- Insurance policies must conform to the requirements of 40 CFR §280.97
- Certificates of insurance must be submitted to ADEQ
Tank owners who were previously covered under AZUSTAP may still receive assistance for cleanup costs for releases that occurred during their coverage period, but all tanks now require private insurance or alternative financial mechanisms.
For detailed information about Arizona’s current requirements, tank owners should consult the EPA’s regional office contacts for Region 9, which oversees Arizona, California, Hawaii, Nevada, and other western states.
Texas: Strict State-Specific Requirements
Texas maintains one of the strictest and most detailed storage tank regulatory programs in the country, administered by the Texas Commission on Environmental Quality (TCEQ). Texas requirements go beyond federal standards in several important ways.
Key Distinctions:
Texas phased out its state assurance fund for new participants years ago, meaning all current tank owners must maintain private financial assurance mechanisms. More importantly, Texas requires that financial assurance instruments be worded exactly as specified in Title 30 Texas Administrative Code (TAC), Chapter 37, Subchapter I.
Critical Compliance Point: Federal form language (40 CFR 280) is NOT acceptable in Texas except for local government financial tests and guarantees. Standard ACORD insurance forms are also unacceptable unless they have been specifically modified to meet Texas requirements. This unique requirement catches many out-of-state operators off guard.
Coverage Requirements:
- Corrective Action: Minimum $1 million per occurrence
- Third-Party Liability: Minimum $1 million per occurrence
- Both sudden and non-sudden (gradual) releases must be covered
- Insurance certificates or policies must use exact Texas-mandated wording
Texas also maintains rigorous technical standards for tank systems, including advanced leak detection, overfill prevention, and spill containment requirements. Tank owners should review requirements carefully at the TCEQ Petroleum Storage Tank Financial Assurance page and work with insurance providers experienced in Texas-specific endorsements.
Given Texas’s unique requirements, we strongly recommend working with insurance carriers and brokers who have demonstrated experience with Texas storage tank policies. The cost of non-compliance can be severe, including civil penalties and delivery prohibition orders that prevent fuel deliveries to non-compliant tanks.
Nevada: Active State Fund Program
Nevada operates an active state assurance fund through the Nevada Division of Environmental Protection, State Environmental Commission Petroleum Fund. This fund provides a viable option for many Nevada tank owners to meet their financial responsibility requirements.
Program Features:
- Nevada’s fund covers corrective action costs and third-party liability claims for eligible releases
- Tank owners pay into the fund through per-gallon fees on petroleum products
- The fund is EPA-approved for meeting federal financial responsibility requirements
- Coverage limits align with federal minimums, though additional insurance may be advisable for larger operations
Eligibility Requirements:
- Tanks must be properly permitted and registered with the state
- Owners must be in compliance with all technical requirements
- Current fees must be paid
- Leak detection and monitoring systems must be operational and tested
Nevada tank owners can choose to participate in the state fund, purchase private insurance, or use other approved financial mechanisms. Many operators use a combination approach, utilizing the state fund for base coverage while maintaining excess insurance for catastrophic scenarios.
For technical standards and compliance information, Nevada tank owners should reference the EPA Region 8 contacts, which provides guidance for Nevada and other mountain states.
New Mexico: Comprehensive State Fund Coverage
New Mexico maintains an active and comprehensive Corrective Action Fund administered by the New Mexico Environment Department’s Petroleum Storage Tank Bureau. This fund provides one of the more generous financial assurance programs among southwestern states.
Key Features:
- The fund covers corrective action costs and third-party liability for eligible releases
- New Mexico requires all UST owners to demonstrate financial responsibility, with the state fund being an approved mechanism
- Coverage extends to both sudden and gradual releases
- The fund can reimburse cleanup costs and settle third-party claims on behalf of eligible tank owners
Eligibility Requirements:
- Registration with the Petroleum Storage Tank Bureau
- Payment of annual fees (assessed on petroleum throughput)
- Compliance with all technical and operational requirements
- Proper leak detection and monitoring systems
- Current operator training certification
New Mexico has updated its regulations to incorporate the 2015 federal UST requirements, including enhanced operator training, periodic testing of equipment, and improved release detection methods. Tank owners must maintain compliance with all technical standards to remain eligible for fund coverage.
The state provides detailed guidance through the New Mexico Petroleum Storage Tank Bureau, and questions about coverage and eligibility should be directed to their Santa Fe office.
North Dakota: Insurance Department-Administered Fund
North Dakota takes a unique approach by administering its Petroleum Tank Release Compensation Fund through the North Dakota Insurance Department rather than an environmental agency. This fund provides comprehensive coverage for eligible tank owners throughout the state.
Program Structure:
- The fund covers cleanup costs and third-party damages for qualifying releases
- Annual fees are assessed based on the number and size of tanks
- The program includes coverage for defense costs and legal representation
- North Dakota’s fund is EPA-approved for federal financial responsibility compliance
Coverage Highlights:
- Per-occurrence coverage with deductibles based on tank owner category
- Coverage for bodily injury and property damage to third parties
- Environmental remediation costs
- Natural resource damages
- Legal defense and expert witness costs
North Dakota’s program includes specific provisions for different categories of tank owners, with varying deductibles and coverage limits based on the type of facility. The fund generally does not cover costs associated with tank closure or replacement, intentional acts, or releases from non-registered tanks.
Tank owners must maintain current registration, pay required fees, and comply with all state and federal technical requirements to remain eligible. The North Dakota Insurance Department’s Petroleum Tank Release Compensation Fund provides detailed information about coverage, fees, and eligibility requirements.
Oklahoma: State Corporation Commission Oversight
Oklahoma’s storage tank program is administered by the Oklahoma Corporation Commission’s Petroleum Storage Tank Division, which oversees both technical compliance and financial assurance requirements.
Financial Assurance Options:
Oklahoma operates an active state assurance fund that tank owners can use to meet federal financial responsibility requirements. The Oklahoma Petroleum Storage Tank Indemnity Fund provides coverage for cleanup costs and third-party liability for eligible releases.
Key Requirements:
- Registration with the Corporation Commission
- Payment of annual registration fees
- Compliance with technical requirements including leak detection, corrosion protection, and spill prevention
- Operator training certification
- Annual self-certification of tanks
Oklahoma’s program includes specific requirements for different types of facilities. Agricultural and residential tanks under 1,100 gallons used for non-commercial purposes are generally exempt from financial responsibility requirements, though they must still comply with technical standards.
The state maintains a 24-hour release reporting hotline and provides guidance documents for tank owners through the Oklahoma Corporation Commission Petroleum Storage Tank Division website.
Wyoming: State Fund Program
Wyoming operates an active financial assurance fund through the Wyoming Department of Environmental Quality’s Underground Storage Tank Program. The state fund provides an important option for Wyoming tank owners to demonstrate financial responsibility.
Program Details:
- Coverage for corrective action and third-party liability
- Fee-based participation system
- EPA-approved for federal financial responsibility compliance
- Specific eligibility requirements and exclusions
Compliance Requirements:
- Current tank registration
- Annual fee payment
- Technical compliance with state regulations
- Proper operation and maintenance
- Release detection and monitoring systems
Wyoming updated its storage tank rules in 2018, incorporating many of the 2015 federal requirements. Tank owners should review current regulations and ensure their systems meet all applicable standards.
The Wyoming Department of Environmental Quality’s Water Quality Division administers the program and provides technical assistance to tank owners throughout the state.
Pennsylvania: Comprehensive State Program
Pennsylvania operates one of the oldest and most established state assurance funds in the nation through its Underground Storage Tank Indemnification Fund (USTIF), administered by the Pennsylvania Department of Environmental Protection (DEP).
Program Features:
Pennsylvania’s fund provides coverage for corrective action and third-party damages for eligible releases. The program has paid out hundreds of millions of dollars in claims since its inception and serves as a model for other state programs.
Coverage Structure:
- Corrective action costs (with deductibles based on tank owner category)
- Third-party bodily injury and property damage
- Legal defense costs in certain circumstances
- Natural resource damages
Eligibility Requirements:
- Current tank registration and certification
- Payment of annual fees
- Compliance with technical standards
- Proper operation and maintenance procedures
- Release detection systems must be operational
Pennsylvania extensively revised its storage tank regulations in 2018, updating technical standards and compliance requirements. The state has adopted enhanced secondary containment requirements, upgraded leak detection standards, and improved operator training provisions.
Tank owners must maintain detailed records of all inspections, testing, and maintenance activities. Pennsylvania conducts regular compliance inspections and can impose significant penalties for violations.
The Pennsylvania DEP provides comprehensive guidance through its Storage Tank Program webpage, and tank owners can access detailed information about USTIF coverage, claims procedures, and eligibility requirements.
Above Ground Storage Tank (AST) Considerations
While this article has focused primarily on underground storage tanks, above ground storage tanks also present significant environmental risks and often require specialized insurance coverage. The regulatory landscape for ASTs is less uniform than for USTs, with requirements varying substantially by state.
Federal AST Requirements
ASTs containing petroleum products may be subject to:
Spill Prevention, Control, and Countermeasure (SPCC) Requirements: Facilities with aggregate above ground petroleum storage capacity exceeding 1,320 gallons and potential to discharge oil into navigable waters must prepare and implement an SPCC plan under 40 CFR Part 112.
Facility Response Plans (FRP): Larger facilities with substantial oil storage capacity must prepare comprehensive response plans for potential spills.
API Standard 650: For larger ASTs, the American Petroleum Institute (API) Standard 650 provides comprehensive design and construction standards. Tank owners can access detailed technical specifications at API Standard 650.
State-Specific AST Requirements
Several states have developed specific financial responsibility requirements for ASTs:
- California: Requires proof of financial responsibility for ASTs storing petroleum in certain quantities, with coverage amounts based on tank size and location.
- New Jersey: Maintains comprehensive AST regulations including financial assurance requirements through its Underground Storage Tank program (which also covers certain ASTs).
- Pennsylvania: Requires registration and financial assurance for ASTs over certain size thresholds.
Other states have varying requirements, and multi-state operators should carefully research applicable standards in each jurisdiction where they maintain AST facilities.
The Evolving Insurance Marketplace: Challenges and Solutions
The storage tank insurance market has undergone significant changes in recent years, creating challenges for tank owners seeking coverage.
Market Trends and Challenges
Age-Related Coverage Restrictions: Insurance carriers increasingly view tanks over 20 years old as high-risk, with many refusing coverage for tanks exceeding 25-30 years regardless of condition or upgrades. This creates a critical vulnerability for owners of aging tank systems.
Rising Premiums and Deductibles: Coverage costs have increased substantially, particularly for older tank systems or facilities with claims history. Deductibles have risen from $10,000-$25,000 to $50,000-$100,000 or more for some risks.
Capacity Constraints: Some carriers have reduced their appetite for storage tank risks or exited the market entirely, limiting options for tank owners.
State Fund Changes: Multiple states have phased out or restricted their financial assurance funds, forcing tank owners to seek private insurance in an increasingly challenging market.
Strategies for Securing Coverage
Despite these challenges, tank owners can take several steps to improve their insurability and manage costs:
Proactive Tank Management:
- Implement comprehensive preventive maintenance programs
- Upgrade aging tanks before they reach critical age thresholds
- Install advanced monitoring and leak detection systems
- Maintain detailed records of all inspections, testing, and maintenance
- Conduct environmental site assessments to document existing conditions
Risk Management Programs:
- Develop and implement spill prevention procedures
- Train staff regularly on proper tank operations and emergency response
- Maintain proper workers compensation coverage for employees handling hazardous materials
- Conduct routine compliance audits
- Address any identified deficiencies promptly
- Maintain emergency response plans and equipment
Insurance Shopping Strategies:
- Work with brokers specializing in environmental and pollution liability insurance
- Start the renewal process 120-180 days before policy expiration
- Consider alternative risk transfer mechanisms for challenging risks
- Evaluate combination programs that include excess coverage
- Review policy terms carefully to ensure adequate protection
Financial Planning:
- Budget for tank replacement 20-25 years after installation
- Establish reserves for potential cleanup costs
- Consider risk retention for first-dollar losses while maintaining catastrophic coverage
- Evaluate the total cost of ownership including insurance, maintenance, and eventual replacement
Compliance Best Practices: Protecting Your Business
Beyond securing adequate insurance coverage, tank owners should implement comprehensive compliance programs to minimize release risks and maintain eligibility for coverage.
Essential Compliance Elements
Registration and Permitting:
- Maintain current tank registrations in all applicable jurisdictions
- Submit required notifications and certifications on time
- Update registrations when tank systems change
- Ensure operator information is current
Technical Compliance:
- Install and maintain required leak detection systems
- Conduct monthly monitoring as required
- Perform annual testing of leak detection equipment
- Maintain corrosion protection systems
- Ensure overfill prevention equipment is operational
- Test spill containment equipment regularly
Operator Training:
- Ensure all operators receive required training
- Maintain training records and certificates
- Provide refresher training on schedule
- Document training for new operators promptly
Record Keeping:
- Maintain inspection records for required retention periods
- Document all testing and maintenance activities
- Keep repair records and receipts
- Retain release detection records
- Maintain compliance certifications
Financial Documentation:
- Keep current insurance certificates or other financial assurance documentation
- Provide copies to regulatory agencies as required
- Ensure coverage limits meet or exceed requirements
- Update documentation when coverage changes
Release Prevention and Response
Prevention Measures:
- Conduct regular walk-around inspections
- Monitor delivery operations carefully
- Maintain proper tank fill procedures
- Inspect dispensers and equipment regularly
- Address potential problems immediately
- Keep emergency response equipment accessible
Release Response:
- Know your state’s reporting requirements and timelines (typically 24 hours)
- Maintain current emergency contact information
- Have spill response contractors pre-identified
- Keep emergency response equipment readily available
- Train staff on initial response procedures
- Document all response activities thoroughly
Post-Release Actions:
- Report releases promptly to all required agencies
- Notify your insurance carrier immediately
- Secure the site to prevent further releases
- Conduct required investigations and assessments
- Implement corrective action as directed
- Maintain detailed records of all activities and costs
Working with CVI: Your Partner in Storage Tank Insurance and Bonding
Navigating the complex landscape of storage tank insurance and financial responsibility requirements requires specialized expertise and access to insurance markets that understand these unique risks. This is where CVI’s experience and market relationships become invaluable.
Why Specialized Expertise Matters
Storage tank insurance is a highly specialized field requiring knowledge of environmental regulations, engineering standards, geology, remediation technologies, and insurance markets. Generic insurance agents often lack the depth of understanding necessary to properly structure coverage or identify gaps in protection.
CVI specializes in environmental and pollution liability insurance, including comprehensive storage tank coverage. Our team understands:
- Federal and state-specific financial responsibility requirements
- Technical compliance standards and their insurance implications
- State fund programs and alternative mechanisms
- Claims handling and remediation procedures
- Emerging coverage issues and market trends
Comprehensive Coverage Solutions
We work with multiple insurance carriers specializing in storage tank risks to provide:
Underground Storage Tank Insurance:
- Pollution liability coverage for UST systems
- Sudden and gradual release coverage
- On-site and off-site cleanup costs
- Third-party bodily injury and property damage
- Legal defense costs
- Natural resource damages
- Regulatory compliance coverage
Above Ground Storage Tank Insurance:
- Comprehensive AST pollution liability
- SPCC and regulatory compliance coverage
- Excess coverage for catastrophic scenarios
- Combined UST/AST programs for efficient coverage
Surety Bonds:
- Financial assurance bonds for tank systems
- Closure bonds for tank removal projects
- Performance bonds for environmental remediation
- Custom bond programs for specific state requirements
Combination Programs:
- Site-wide pollution liability coverage
- Contractors pollution liability for tank installers
- Environmental impairment liability
- Excess and umbrella coverage
Our Approach to Client Service
Risk Assessment:
We begin by thoroughly understanding your tank systems, operational procedures, compliance status, and risk management programs. This assessment helps us identify coverage needs and opportunities to improve insurability.
Market Access:
Our relationships with multiple carriers allow us to access specialized markets and negotiate competitive terms. We work with both admitted and surplus lines carriers to find the best solutions.
Customized Solutions:
Every tank facility is unique. We structure coverage specifically for your operations, ensuring adequate protection without unnecessary costs.
Ongoing Support:
Insurance needs change over time. We provide continued service including policy reviews, claims advocacy, and coverage adjustments as your operations evolve.
Education and Resources:
We keep our clients informed about regulatory changes, market trends, and risk management best practices that affect their coverage and compliance.
The Cost of Inadequate Coverage: Lessons from Real-World Cases
Throughout this article, we’ve discussed Mike Henderson’s Pennsylvania gas station closure. Unfortunately, similar stories play out regularly across the country when business owners lack adequate insurance or fail to maintain compliance.
Consider these additional cautionary examples:
The Multimillion-Dollar Groundwater Contamination: A fleet fueling facility in the Southwest discovered a leak from their diesel UST system that had contaminated a significant groundwater plume. The cleanup ultimately cost $3.2 million and took seven years to complete. The facility’s $500,000 insurance policy was exhausted in the first year, leaving the company to fund the remainder of the cleanup and face numerous third-party claims from affected neighbors. Their standard general liability policy provided no coverage due to pollution exclusions.
The Aging Tank Time Bomb: A convenience store in the Midwest operated three 30-year-old gasoline tanks that had been properly maintained and showed no signs of problems. When their insurance carrier declined to renew coverage due to tank age, the owner delayed seeking alternative coverage for six months. During that coverage gap, one tank developed a leak, and the owner faced the entire $425,000 cleanup cost personally, with no insurance recovery.
The Unknown Historical Release: A business property purchaser conducted a standard environmental assessment but did not discover historical soil and groundwater contamination from former tank operations at the site. Years later, state regulators identified the contamination during a routine regional groundwater study and required comprehensive cleanup. The new owner faced cleanup costs exceeding $1.5 million for contamination they didn’t cause, with no insurance coverage or recourse against previous owners.
These cases underscore critical lessons:
- Minimum required coverage levels are often insufficient for actual cleanup costs
- Coverage gaps, even brief ones, can result in catastrophic uninsured losses
- Historical contamination can surface years after operations cease
- Aging tanks become increasingly difficult to insure and more likely to fail
- General liability policies do not cover pollution-related claims—specialized pollution coverage is essential
Frequently Asked Questions About Storage Tank Insurance
What is the minimum insurance coverage required for underground storage tanks?
Under federal regulations (40 CFR Part 280, Subpart H), petroleum marketers (gas stations, convenience stores with fuel) must have $1 million per occurrence with an annual aggregate of $1 million. All other petroleum UST owners/operators need $500,000 per occurrence with an annual aggregate of $1 million. Many states require higher coverage levels, and actual cleanup costs often exceed these minimums significantly.
Does my general liability insurance cover storage tank leaks?
No. Standard commercial general liability (CGL) policies almost universally exclude pollution-related claims. Storage tank leaks require specialized pollution liability insurance or storage tank-specific coverage to provide protection for cleanup costs and third-party damages.
Can I use a state fund instead of buying insurance?
It depends on your state. Currently, 36 states have active state financial assurance funds that can be used to meet federal financial responsibility requirements. However, several states including Arizona and Texas have phased out their state funds for new participants. As of January 1, 2025, California tank owners can no longer use the state fund as their sole mechanism for demonstrating financial responsibility. Check your specific state’s requirements, as they vary significantly.
How much does storage tank insurance typically cost?
Storage tank insurance costs vary widely based on several factors including tank age (tanks over 20 years old are more expensive or difficult to insure), number and size of tanks, type of product stored, location, claims history, and coverage limits selected. Annual premiums can range from $2,000 to $25,000+ depending on these factors. Deductibles typically range from $10,000 to $100,000 or more.
What happens if my storage tank is too old to insure?
Tanks over 20-30 years old can be difficult or impossible to insure. Options include: upgrading the tank system with new components to improve insurability, replacing the tank with a new system, exploring state fund options if available in your state, considering alternative financial assurance mechanisms like surety bonds or letters of credit, or working with specialty insurance brokers who have access to markets willing to insure older tanks at higher premiums.
What is covered by storage tank insurance?
Storage tank pollution liability insurance typically covers: cleanup and remediation costs (on-site and off-site), third-party bodily injury claims, third-party property damage, legal defense costs, natural resource damages, regulatory compliance expenses, and emergency response costs. Coverage applies to both sudden accidental releases and gradual releases depending on policy terms.
How long does a storage tank cleanup typically take?
Storage tank cleanup timelines vary dramatically based on the extent of contamination. Simple soil cleanups may take 3-6 months, while groundwater contamination cases can take 5-15 years or more. The average cleanup with groundwater involvement takes 7-10 years and costs $130,000 to over $1 million depending on the size of the contamination plume and affected receptors.
Do I need separate insurance for above ground storage tanks?
Most storage tank insurance policies can cover both underground and above ground storage tanks, though coverage must be specifically arranged. Above ground storage tanks (ASTs) have different regulatory requirements than USTs, and some states have specific financial responsibility requirements for ASTs over certain size thresholds. Always verify your policy specifically lists and covers all your tank systems.
What are the penalties for not having required storage tank insurance?
Penalties vary by state but can include: civil fines of $10,000 to $25,000+ per violation, delivery prohibition orders preventing fuel deliveries to your tanks, mandatory tank closure orders, personal liability for cleanup costs (which average $130,000 but can exceed $1 million), third-party lawsuits with no insurance defense or coverage, and potential criminal charges in cases of willful non-compliance.
How often do storage tanks leak?
According to the EPA, there have been over 532,000 confirmed releases from underground storage tanks in the United States since 1988. More than half of the 415,000 USTs currently in service have reached over 25 years of age. Tank failure rates increase significantly after 20 years, with experts estimating that for aging tanks, it’s often a matter of when, not if, a leak will occur without proper maintenance and eventual replacement.
📞 Need Help with Storage Tank Insurance?
Don’t risk your business with inadequate coverage. CVI specializes in storage tank insurance and can help you navigate complex federal and state requirements.
✓ Free coverage review
✓ Access to specialized markets
✓ Expert guidance on state-specific requirements
✓ Competitive rates for UST and AST coverage
Serving tank owners in CA, AZ, TX, NV, NM, ND, OK, WY, PA, and nationwide
Conclusion: Protecting Your Business Through Proper Insurance and Compliance
Storage tank operations carry significant environmental and financial risks that cannot be adequately addressed through standard business insurance policies. Whether you operate underground storage tanks at a gas station, maintain above ground tanks for manufacturing processes, or manage storage facilities in any industry, understanding and meeting financial responsibility requirements is essential for business continuity and legal compliance.
The regulatory landscape varies significantly by state, with some jurisdictions offering state fund options while others require private insurance or alternative mechanisms. Changes in state fund availability, particularly in Arizona, California, Texas, and other states that have phased out or modified their programs, mean that tank owners must actively manage their financial assurance and cannot simply assume existing arrangements remain adequate.
The storage tank insurance marketplace has become more challenging in recent years, with carriers increasingly cautious about older tank systems and coverage costs rising for many operations. Proactive risk management, proper maintenance, timely equipment upgrades, and strategic insurance planning are essential for managing these challenges successfully.
Mike Henderson’s story didn’t have to end with business closure. Had he understood his financial responsibility requirements, secured appropriate pollution liability insurance, and maintained proper coverage, his business could have weathered the cleanup costs and continued serving his community. Instead, his family lost their livelihood, neighboring property owners suffered damages, and the community lost a valued business—all because of inadequate insurance planning.
Don’t let insufficient coverage jeopardize everything you’ve built. Whether you’re starting a new operation, managing existing tank systems, or dealing with aging infrastructure, taking action now to ensure adequate insurance and financial responsibility compliance is critical.
The specialists at CVI understand storage tank risks and have access to markets that can provide comprehensive coverage for your operations. From evaluating your current insurance adequacy to securing new coverage that meets federal and state requirements, we’re here to help protect your business from the devastating costs of storage tank incidents.
For more information about storage tank insurance and bonding requirements, or to schedule a consultation about your specific needs, contact CVI today. Protecting your business starts with understanding your risks and ensuring you have the right coverage in place before a release occurs.
Resources:
- EPA Underground Storage Tank Program: State Contacts
- API Standard 650 (Welded Tanks for Oil Storage): Technical Standards
- EPA List of Insurance Providers: Insurance Resources
About CVI:
CVI specializes in providing insurance and surety bond solutions for businesses with environmental exposures, including comprehensive storage tank coverage. Our expertise in environmental liability insurance, combined with our access to specialized markets, allows us to provide tailored solutions that meet both regulatory requirements and our clients’ risk management needs. Contact us today to learn how we can help protect your business.
This article is provided for informational purposes only and does not constitute legal or insurance advice. Specific requirements vary by jurisdiction and individual circumstances. Consult with qualified insurance professionals and legal counsel regarding your particular situation.
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