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is provided for various major oil handling containers, equipment, and transfer areas to prevent a discharge to navigable waters or adjoining shorelines. Integral Secondary containment exists for three (3) AST fuel tanks situated at the south side of the Service Bay. Given the integral secondary containment construction of the ASTs and the construction of this facility, it is unlikely that any petroleum product, if it were on the ground, would do substantial harm to the environment or to waterways. In addition to the secondary containment for the tanks, the entire facility is designed so that any liquids spilled or otherwise on the site drains towards the middle of the fuel enclosure wherein it can be contained and collected. Uncontaminated rainwater would likewise be expected to pool towards the middle of the property. It is unlikely that any petroleum product, if it were on the ground would do substantial harm to the environment or to waterways. 3 Use one of the following methods of secondary containment or its equivalent: (1) Dikes, berms, or retaining walls sufficiently impervious to contain oil; (2) Curbing; (3) Culverting, gutters, or other drainage systems; (4) Weirs, booms, or other barriers; (5)Spill diversion ponds; (6)Retention ponds; (7)Sorbent materials. Below identifies the tanks and containers at the facility with the potential for an oil discharge; the mode of failure; the flow direction and potential quantity of the discharge; and the secondary containment method and containment capacity that is provided. 3.2 Facility Layout Diagram (40 CFR 112.7(a)(3)) Figure A-1 in Appendix A shows the general location of the facility on Satellite picture-map. Figure A-2 in Appendix A presents a layout of the facility location of storage tanks. The satellite view also shows the location of storm water drain inlets and the direction of surface water runoff. As required under 40 CFR 112.7(a)(3), the facility diagram indicates the location and content of ASTs. 3.3 Spill Reporting (40 CFR 112.7(a)(4)) The discharge notification form included in Appendix I will be completed upon immediate detection of a discharge and prior to reporting a spill to the proper notification contacts, in accordance with 40 CFR 112.7 (a)(4). 3.4 Potential Discharge Volumes, Flow & Secondary Containment 40 CFR 112.7 a 3 iii Potential discharges from the primary fuel vessel ASTs are expected to be partially contained within the secondary containment of the UL 142 Tanks, which is fully integral secondary containment. Some of the enclosure is capable of containing any freeboard precipitation in the "berm" enclosure. Secondary containment retrofits represent an ongoing "work in process" in accordance with local AHJ guidelines. Below in Table 3-2 is the matrix for potential discharge volumes, flow & secondary containment. 20