2003-09-15_REVISION - M1999034 - Laserfiche WebLink

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SEP-15-2003 10:33AM FROM-AGGREGATE INDUSTRIES +3036655285 T-537 P.013/013 F-533 Spill Prevention, Control, and Countermeastue Plan New Thornton Pit p~pEGp~ Augus[ 5, 2003 °mt°TM~ lA FACILTTY LAYOUT AND DRAINAGE The main plant area is located near the eastern edge of the property as shown on the facility diagram provided on Figure 1 [§ 112.7(x)(3)]. The location and contents of containers marked on the facility diagram are described in Section 2.0 and include the following locations. 1. The outside fuel/oil storage tank area (See Section 2.0). 2. The fuel/oil storage area storage shed (See Secrion 2.0). 3. The main pit area fuel tank (See Section 2.0) 4. The main pit area storage shed (Section 2.0). Containment measures fer containers and unloading areas are described in Sections 2.0 and 4.0, respectively [§112.7(c)]. Storm water from the outside fueUoil storage area [§112.8(b)J is expected to drain to the west through the azea of sand and gravel stockpiles. Drainage from the main pit fuel/oil storage area is expected to drain to the east toward the South Platte River. There is a slurry wall containing ground water in the main pit and the main pit tanks are inside of that wall. The facility does have a CDPHE discharge permi[ with four identified outfalls. Storm water at the facility is not treated. 1.5 PREDICTION OF POTENTIAL. EQUIPMENT FAILURE Experience at facilities storing oil materials (e.g., petroleum, oil, lubricants, used oils) indicates there is a ~. reasonable potential for equipment failure (such as loading or unloading equipment, tank overflow, tvpnue, or leakage, or outer equipment failure). This SPCC Plan includes a fault analysis that evaluates oil flow as a result of equipment failure, in accordance with § 112.7(b), Appendix ]3 includes the tables sumtnatizing the prediction of the direction, rate of flow, and total quantity of oil, which could be discharged from oil storage locations as a result of equipment failure. Although oil spills within containment aeeas would be contained by the containment as described in Sections 2.0 and 4.0, the predictions included in Appendix B ignore the presence of the containment structures as provided in EPA guidance. The combination of containment, attended unloading, distance from the main fueUoil storage area to surface water, and site drainage including grading of the ground surface is expected w contain, slow, and minimize spilled oil from discharging from the site. ~,.