Arkansas Storage Tank Rules and Environmental Safety Measures

Arkansas regulates aboveground and underground storage tanks to prevent leaks, spills, and groundwater contamination. This article summarizes the state’s regulatory framework, key requirements for storage tanks, and practical steps facilities can take to ensure environmental safety. It reflects how Arkansas aligns with federal standards while addressing local site conditions and enforcement practices.

Overview Of Arkansas Storage Tank Regulations

Arkansas storage tank rules are administered primarily by the Arkansas Department of Environment Quality (ADEQ). The state enforces programs for both aboveground storage tanks (ASTs) and underground storage tanks (USTs) to minimize environmental risk. ADEQ often aligns state requirements with federal provisions under relevant sections of the Clean Water Act and Resource Conservation and Recovery Act, while implementing state-specific rules, inspection regimes, and financial assurance mechanisms. Facilities should determine whether their tanks fall under AST or UST regulations, as the compliance paths differ in design, operation, and reporting.

Key Requirements For Aboveground Storage Tanks (ASTs)

Aboveground storage tanks in Arkansas must meet several core standards designed to prevent spills and contamination. Importance is placed on proper siting, containment, and maintenance. Facilities should implement:

• Spill Containment And Secondary Containment: ASTs holding oil or hazardous substances require appropriate secondary containment to capture releases from gaskets, seams, or fittings. The containment area should be capable of holding at least 110% of the largest tank’s volume or meet other ADEQ-approved criteria.
• Corrosion Protection And Tank Integrity: Tanks and piping should have corrosion protection and regular integrity testing, using methods such as visual inspections, ultrasonic testing, or other ADEQ-approved techniques.
• Release Detection And Monitoring: Operators must implement monitoring for leaks or releases, including interstitial monitoring, automatic tank gauging, or equivalent methods for ASTs that store hazardous substances.
• Spill Response And Cleanup Readiness: Facilities should have an up-to-date spill response plan, trained personnel, and readily available cleanup supplies to address any accidental releases.
• Labeling, Signage, And Access Control: Tanks must be clearly labeled with contents, associated hazards, and emergency contact information, with restricted access to prevent tampering.

Key Requirements For Underground Storage Tanks (USTs)

USTs pose different risks and require specific controls to prevent groundwater and soil contamination. Arkansas UST rules emphasize:

• Tank And Piping Integrity: UST systems must be designed, installed, and maintained to prevent leaks, with corrosion protection and tightness testing as required by ADEQ and federal standards.
• Spill And Overfill Prevention: USTs require overfill protection devices and spill prevention equipment to minimize releases during filling operations.
• Leak Detection And Reporting: UST operators must implement submersible pumps, automatic tank gauging, interstitial monitoring, or equivalent methods to detect leaks promptly, along with mandatory reporting of releases.
• Financial Responsibility: Property owners or operators typically must demonstrate financial responsibility for coverage of corrective actions, third-party liability, and closure costs.
• Inventory Control And Documentation: Accurate accounting of fuel or substance in storage supports leak detection and regulatory reporting.

Spill Prevention, Detection And Response

Proactive management of spills is a central protection measure in Arkansas storage tank regulation. Facilities should integrate:

• Operation And Maintenance Programs: Regular inspections, maintenance schedules, and prompt repairs reduce spill risk.
• Secondary Containment Testing: Periodic testing of containment systems ensures their effectiveness during a spill event.
• Emergency Preparedness: Spills must be reported to ADEQ and local authorities within mandated timeframes, followed by containment, cleanup, and documentation.
• Cross-Agency Coordination: Coordination with local fire departments and emergency responders enhances response efficiency during incidents.

Financial Responsibility And Insurance

Arkansas storage tank regulations commonly require evidence of financial responsibility to cover corrective actions and third-party liability in the event of leaks or spills. This can take the form of insurance, a guarantee, or a surety bond acceptable to ADEQ. Maintaining adequate financial assurance reduces the risk of uncovered cleanup costs and helps ensure prompt action after an incident. Regular reviews are recommended to keep coverage aligned with tank capacity, contents, and potential environmental impact.

Inspection, Compliance And Recordkeeping

Compliance is maintained through routine inspections, mandatory notifications, and robust recordkeeping. Key practices include:

• Notification And Permits: New tanks often require permit assignments or registrations with ADEQ and may trigger periodic renewal requirements.
• Regular Inspections: Facilities should schedule internal inspections and anticipate ADEQ or third-party audits. Documentation of findings helps demonstrate ongoing compliance.
• Maintenance Records: Keep logs of corrosion protection installations, leak-detection test results, spill response drills, and any repairs or upgrades.
• Closure Procedures: When decommissioning tanks, follow ADEQ-approved closure procedures, including soil and groundwater assessments if required.

Best Practices For Arkansas Facilities

To align with Arkansas storage tank rules and strengthen environmental safety measures, operators can adopt these best practices:

• Develop A Comprehensive Tank Management Plan: Integrate asset inventory, inspection schedules, risk assessments, and response protocols into one official plan.
• Invest In Operator Training: Regular training on leak detection, spill response, and regulatory requirements reduces response times and noncompliance.
• Upgrade Where Needed: Replace aging tanks, improve containment, and install modern monitoring to meet evolving standards.
• Leverage Technology: Use electronic inventory control, automated alarms, and cloud-based reporting to streamline compliance and data accessibility.
• Engage With ADEQ: Maintain open communication for guidance on updates to state rules and best practices for environmental safety.

Common Compliance Pitfalls To Avoid

Awareness of frequent issues helps facilities maintain steady compliance. Common pitfalls include:

• Inadequate secondary containment that cannot hold the largest tank volume
• Lack of regular leak detection testing or improper testing methods
• Insufficient spill response capabilities or delayed reporting
• Failure to maintain financial responsibility coverage or outdated contacts

Compliance Checklist