What is the inspection interval for the interior of steel water storage tanks with corrosion protection?

The inspection interval for the interior of steel water storage tanks with corrosion protection being set at 5 years reflects the need for regular evaluations to ensure that the corrosion protection systems are functioning effectively and that the structural integrity of the tank is maintained. This timeframe is aligned with industry standards to balance safety and practicality, allowing enough time for any potential issues to develop without being overly frequent, which could result in unnecessary operational interruptions and costs.

Routine inspections every 5 years are important to monitor the condition of the corrosion protection and the steel itself. Inspections may include visual assessments, thickness measurements, and tests for corrosion or other types of degradation. By following this interval, operators can ensure that the tanks remain compliant with relevant regulations and continue to provide safe storage for water.

In contrast, more frequent inspections, such as annually or every 3 years, might be unnecessarily stringent for tanks with effective corrosion protection, while a longer interval like 10 years could risk overlooking important maintenance needs, potentially leading to more significant repair issues in the long run. This balance is key to effective tank maintenance and safeguarding public health.