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are listed integral secondary containment fuel storage tanks. All of the secondary containment appears to be in very good operating order and in good shape. As previously mentioned, the hairline cracks in the concrete are normal conditions for concrete and should be watched over time to avoid any impact on the secondary containment abilities of these tanks. This tank is secured to the concrete pad by "shoes" which are anchored into the concrete pad with 1 in. anchors, and as such are unlikely to move in a frost heave, should weather conditions be such that the danger could otherwise appear. This tank appears to have been painted some time after installation as pert of the maintenance operations. The paint has filled into some of the cracks, which could aid in preventing further cracking thru general moisture and subsequent freezing conditions. All nipples on top of the tank appear to be adequately sealed with little or no danger of water migrating into the system and causing corrosion incidents. . While, with a ConVault, there was a slight expectation of some moisture during the test operations, it was found that there was no water or any other liquid present in the interstice. As a result, it appears that fugitive moisture incidents have been properly and adequately addressed and prevented. Moisture issues are recommended to be continually addressed as part of ongoing preventative maintenance, that the interstice on this AST be checked regularly for any detectable problems. Secondary containment is in good solid condition and electrical equipment is grounded. The tanks are integral secondary containment units and storm drains for rainwater removal generally drains away from the tanks. Onan Cummins Tank: This Generator-Fuel Integral system is located on a 6 inch raised concrete pad,within a concrete bene, and between the electricians building and a security fence.. The belly tank beneath the generator is a UL 142 listed tank, but due to the age of the tank,there was no UL plate located. The fuel tanks for the Orion Cummins Generator systems are UL 142 listed tanks, listed as Steel Aboveground Tank for Flammable and Combustible Liquids, under y - - --- UL 142 Integral Secondary -� Containment Aboveground Storage Tanks (ASTs). The general condition of the primary INNER POIR > containment is good and the secondary containment vessel is in good shape without any evidence ry_ of leaks, fractures, or corrosion affecting containment. In addition to the tank integrity testing, steel thickness of the outer shell of the tank was tested & measured for compliance with the UL 142 standard steel thickness requirements. It was determined that the average thickness of this fuel tank is in excess of the minimum requirements under UL 142 Std (.093 mm.) steel thickness requirements for a horizontal tank.