California UST System Operator Practice Test

Steel tanks require special consideration for corrosion protection due to their susceptibility to rust and deterioration when exposed to moisture and various environmental conditions. The presence of water, chemicals, and even soil can lead to corrosion, which can compromise the structural integrity of the tank and potentially lead to leaks. To combat this issue, steel tanks are often coated with protective materials or treated with cathodic protection systems, which involve using a sacrificial anode to prevent corrosion. Additionally, regular inspections and maintenance are critical to identify any early signs of corrosion and take corrective actions before major issues arise. In contrast, plastic, fiberglass, and reinforced concrete tanks are generally less prone to corrosion. Plastic tanks are inert and do not rust, while fiberglass offers excellent resistance to chemical exposure and moisture. Reinforced concrete tanks, while not entirely immune, typically have lower corrosion risks compared to steel, provided they are properly sealed and maintained. Thus, steel tanks stand out as requiring more rigorous attention to prevent corrosion-related problems.