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01 August 2019 AdvancedGeo <br /> AGE Project No. 05-1278 Environmental <br /> Page 9 of 23 <br /> 2.10.1. Distance to Navigable Waters and Adjoining Shorelines and Flow Paths <br /> The Facility is located on relatively level terrain. Drainage generally flows towards the <br /> southwest section of the facility, to a drainage sump. The Facility drainage travels through <br /> subsurface pipe to an onsite sump at the western end of the Facility. Spill trajectories are <br /> indicated on Figure 2. <br /> There are two main storm drains located on the southwest end of the Facility. Greater <br /> than 95 percent of the Facility's ground surface area is concrete, or asphalt paved or has <br /> structure roof cover. The remainder consists of soil, compacted gravel, grass <br /> (landscaping) and low-lying vegetation. <br /> 2.10.2. Discharge History <br /> The Facility has not had any discharges since the last revision of this SPCCP. Table 4 <br /> summarizes the Facility's discharge history. <br /> 3.0. DISCHARGE PREVENTION - GENERAL SPCC PROVISIONS <br /> The following measures are implemented to prevent oil discharges during the handling, <br /> use or transfer of oil products at the Facility. Oil-handling employees have received <br /> training in the proper implementation of these measures. <br /> 3.1. COMPLIANCE WITH APPLICABLE REQUIREMENTS - 40 CFR 112.7(a)(2) <br /> As described in Section 3.5 of this Plan, the operational and emergency oil storage <br /> capacity of the containment areas are sufficient to handle the quantity of oil expected to <br /> be discharged in AST areas from tank overfills or transfer operations. <br /> Non-destructive integrity evaluation and regular inspections are performed based on the <br /> Facility inspection schedule outlined in Table 9 and included in Appendix F. ASTs are <br /> inspected regularly and following a regular schedule in accordance with the Steel Tank <br /> Institute (STI) SP-001 tank inspection standard as described in this Plan. Any leakage <br /> from ASTs would be detected through monitoring of the containment spaces performed <br /> on a daily and monthly basis. Any leakage would be detected visually during scheduled <br /> visual inspections by Facility personnel. <br /> Storage drums are elevated on spill pallets or set within the containment area, or near <br /> land-based spill kits; all sides are visible for immediate leak detection by Facility <br /> personnel. Corrosion poses minimal risk of failure since drums are single-use and remain <br /> on site for a relatively short period of time (less than one year). The drum storage area is <br /> inspected monthly. This is in accordance with accepted industry practice for drum storage <br />