Tank Inspection

Certification & Repair in Perth & WA

API 650 & API 653 Specialists for Above-Ground Storage Tanks 

At Rapallo, we are trusted specialists in the inspection, certification and repair of above-ground storage tanks (ASTs) across Perth and Western Australia. Our expertise includes API 650 and API 653 compliance, risk-based inspection strategies, and practical tank repair solutions that help asset owners maintain safety, compliance and operational reliability. 

We support clients across mining, oil and gas, chemicals and water infrastructure, delivering inspection and engineering services that meet recognised industry standards while reflecting real operational constraints. With Rapallo’s inspections and reporting, compliance is not just documented, it is translated into clear, practical decisions that protect people, the environment and production continuity. 

API 653 Inspection 

API 653 governs the inspection, repair, alteration and reconstruction of in-service steel storage tanks. At Rapallo, we carry out certified API 653 inspections that assess shell integrity, floor condition, roof structures, settlement behaviour and corrosion mechanisms. 

Our engineers provide detailed reports that go beyond basic pass or fail outcomes. Each report includes clear recommendations, go or no-go guidance, and practical repair or remediation scopes where required. This allows clients to prioritise actions based on risk, compliance requirements and operational constraints, ensuring tanks remain safe and fit for service without unnecessary downtime. 

Tank Inspection & Certification 

Routine and reactive inspections are essential for maintaining compliance and asset integrity. Rapallo delivers tank inspection and certification services suitable for regulatory authorities, insurers and internal safety teams. 

All inspections are documented, traceable and aligned with applicable API standards, Australian Standards (including AS 1940) and site-specific requirements. Our certification process provides clear evidence of compliance and reliable engineering data to support maintenance planning, refurbishment decisions and long-term asset management. 

Risk-Based Inspection (RBI) 

Not all tanks carry the same risk profile. Using risk-based inspection (RBI) methodologies, Rapallo helps clients focus inspection effort where it delivers the greatest safety and compliance benefit. 

By considering factors such as tank age, stored product, known failure mechanisms, environmental conditions and operational consequence, inspection resources can be allocated more effectively. Lower-risk tanks may be assessed at extended intervals, while higher-risk assets are targeted for more detailed evaluation. This approach supports reduced unplanned outages, optimised inspection costs and ongoing regulatory confidence. 

API 650 Inspection for New Builds 

When new tanks are fabricated or major modifications are undertaken, API 650 governs the applicable design and construction requirements. Rapallo provides API 650 inspection and quality assurance oversight to support compliance throughout fabrication and construction. 

Our services include material verification, weld inspection, dimensional checks, hydrostatic testing oversight and code compliance review. Through independent inspection and documentation, we provide asset owners with confidence that new tanks are constructed in accordance with recognised standards and are suitable for safe commissioning and long-term service. 

Steel Tank Inspection 

Rapallo inspects all types of above-ground steel storage tanks, including cone-roof, dome-roof, floating roof and flat-bottom configurations. Inspections assess shell geometry, roof condition, floor corrosion, nozzle integrity, settlement behaviour and associated fittings. 

Using a combination of visual inspection, ultrasonic thickness testing, magnetic flux scanning and corrosion mapping, we develop a clear engineering picture of overall tank condition. The resulting data supports informed decisions regarding repair, refurbishment, continued operation or decommissioning. 

Tank Repair & Remediation 

When inspections identify defects or deterioration, Rapallo develops practical repair scopes that reflect operational realities. Repair strategies are tailored to tank construction, extent of degradation and site downtime constraints. 

Repair works may include shell inserts, floor plate repairs, nozzle modifications, roof replacement or full tank refurbishment. Each repair scope is developed with lifecycle cost, operational impact and future inspection requirements in mind. Where appropriate, phased repair strategies are recommended to extend asset life while minimising unnecessary shutdowns. 

Rapallo also provides engineering oversight and quality assurance during execution to ensure repairs are carried out safely, compliantly and in accordance with the approved scope. 

Our Approach 

Rapallo applies rigorous technical standards while drawing on more than three decades of practical field experience. We understand that API codes and Australian Standards are critical, but we also recognise the operational pressures faced by mining, energy and industrial operators. 

Our inspection reports are prepared in accordance with applicable standards and provide clear, practical recommendations. Guidance is always framed to balance compliance requirements with production realities, while repair scopes are developed to manage risk, cost and downtime in a realistic and achievable manner. We also provide full support for recertification and audit requirements, ensuring documentation remains traceable and defensible. 

By combining engineering judgement with real-world practicality, Rapallo delivers tank inspection and repair services that are credible, efficient and trusted by operators across Western Australia. 

Our Tank Services Cover 

• API 653 inspection of in-service steel storage tanks. 

• API 650 inspection and quality assurance for new builds and major modifications. 

• Risk-based inspection strategies for individual tanks and tank farms. 

• Tank inspection, certification and compliance documentation. 

• Steel tank inspection using visual and non-destructive testing methods. 

• Settlement, plumbness and out-of-roundness assessment. 

• Corrosion mapping and tank bottom evaluation. 

• Roof and shell ultrasonic thickness testing. 

• Tank repair scoping, refurbishment planning and engineering oversight. 

Why Tank Inspections Matter 

Storage tanks rarely fail suddenly. Degradation typically develops over time through corrosion, settlement, product compatibility issues and coating breakdown. Without qualified inspection and assessment, asset owners may unknowingly carry increasing levels of risk that can ultimately lead to costly failures. 

Even tanks that fall outside strict API scope still require structural evaluation in accordance with Australian Standards or site-specific engineering frameworks. Inadequate inspection and maintenance can result in product loss, environmental contamination, unplanned downtime and regulatory consequences. 

Regular inspection, certification and engineering assessment are essential to ensure tanks remain safe, compliant and fit for continued service. 

Typical Use Cases 

Rapallo’s tank inspection and repair services are applied across a wide range of industries and operating environments. Typical applications include: 

• API 653 inspections of diesel, crude and water tanks at remote mining operations. 

• Risk-based inspection strategies for large tank farms to optimise inspection resources. 

• Condition assessments of process tanks prior to shutdowns or scheduled maintenance windows. 

• Compliance inspections of bulk chemical and hazardous goods storage tanks. 

• Refurbishment planning for ageing, modified or non-compliant tanks. 

• Quality assurance support during fabrication of new API 650-compliant tanks. 

Tank Inspections That Meet Real-World Standards 

At Rapallo, our focus extends beyond code compliance to the protection of your operation. We understand the cost of downtime and the consequences of asset failure, which is why we prioritise efficient delivery, clear reporting and practical recommendations that can be confidently implemented. 

Contact Rapallo to discuss your tank inspection, certification or repair requirements across Perth and regional Western Australia. Whether you require an API 653 inspection, a tank farm RBI program or support with a major repair scope, our team will deliver solutions that keep your assets safe, compliant and operational. 

Why Choose Rapallo 

Rapallo combines engineering capability with practical field experience across mining, energy and heavy industry. Our clients rely on us because we provide technically defensible reporting, realistic recommendations and solutions that balance compliance, safety and operational requirements. 

Contact Rapallo 

If you are managing ageing tanks, planning inspections, preparing for audits or addressing integrity concerns, Rapallo can support your operation with practical, defensible tank inspection and engineering services across Perth and regional Western Australia.