API 653 Tank Inspection and Repair
American Built
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US Veteran Owned
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Customized Liners
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American Built ✳︎ US Veteran Owned ✳︎ Customized Liners ✳︎
Protecting and Preserving Tank Integrity
Routine API 653 inspections are essential for protecting aboveground storage tanks and extending their operational lifespan. Through detailed visual assessments, thickness testing, foundation evaluations, and compliance review, potential issues such as corrosion, structural fatigue, settlement, or weld defects can be identified early before they lead to costly failures or environmental risk.
When deficiencies are found, timely repair strategies restore structural integrity and help tanks safely return to service. From shell and floor repairs to roof and foundation corrections, addressing concerns promptly supports regulatory compliance and protects long term asset performance.
Proactive inspection and repair planning reduces unplanned downtime, safeguards operations, and preserves the value of critical storage infrastructure.
Liner Inspections and Complete Tank System Evaluation
In addition to API 653 tank inspections, we perform liner inspections for tanks equipped with internal containment systems. Liner inspections focus on evaluating liner material condition, seams, penetrations, and high wear areas to identify signs of damage, chemical exposure, or aging before containment is compromised.
Regular liner inspections help:
Extend liner service life
Reduce the risk of leaks
Maintain chemical compatibility and containment performance
Support regulatory and maintenance documentation
By offering both API 653 tank inspections and liner inspections, we provide a comprehensive evaluation of the entire tank system. This integrated approach ensures that both the steel structure and internal containment system are performing as intended, helping owners make informed repair, retrofit, and maintenance decisions.
DAKK liner solutions and inspection services are designed to support safe operation, regulatory confidence, and long term asset protection.
API 653 Inspections for Aboveground Storage Tanks
Aboveground storage tanks are critical assets, and ensuring their safety, compliance, and longevity is essential. API 653 inspections are the industry standard for evaluating the condition of aboveground storage tanks in accordance with American Petroleum Institute guidelines. These inspections are designed to assess structural integrity, operational safety, and continued fitness for service.
API 653 inspections evaluate tanks used to store fertilizers, water, chemicals, fuels, and other industrial products. Through detailed assessment procedures, inspectors identify corrosion, metal loss, settlement concerns, weld degradation, and other conditions that could impact performance or lead to leaks, downtime, or costly failures.
Depending on tank age, service history, and regulatory requirements, inspections may include external, internal, and in service evaluations. The inspection process examines the tank shell, roof, and bottom condition, verifies weld integrity and plate thickness, evaluates corrosion levels and remaining service life, and reviews foundation stability and settlement patterns. Nozzles, penetrations, and associated components are also assessed to ensure full compliance.
Performed by certified API 653 inspectors, these evaluations provide detailed documentation of tank condition along with repair recommendations and future inspection intervals. This structured approach helps owners maintain regulatory compliance, protect environmental safety, and extend the service life of their aboveground storage tanks.