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Connell Resources Timnath Pit <br />Spill Prevention Control and Countermeasures Plan <br />Revision Date: June 25, 2009 <br />Section 17.0 Bulk Storage Containers [112.8(c)] <br />Page 17-1 <br />Section 17.0 Bulk Storage Containers [112.8(c)] <br />Appendix B lists the bulk oil storage tanks at the Facility. <br />17.1 Compatibility [112.8(c)(1)] <br />The bulk oil storage tanks are compatible with their contents and the conditions of storage. <br />The oil storage tanks are not pressurized. The tanks operate at approximately atmospheric <br />temperature. <br />17.2 Secondary Containment [112.8(c)(2)] <br />For the freeboard calculation, 110% capacity of the largest tank in each secondary <br />containment area was utilized. Appendix B provides the secondary containment <br />calculations for the containment areas. <br />The tanks do have sufficient secondary containment. Appendix B contains information on <br />tank secondary containment systems including secondary containment volume calculations, <br />where applicable. <br />The tank secondary containment areas are constructed of materials that are sufficiently <br />impermeable to hold the spill until discovery by Facility personnel including the following: <br />• Concrete <br />• Steel <br />• Earth <br />17.3 Diked Area Drainage [112.8(c)(3)] <br />The drainage systems used on the secondary containment areas are kept closed except <br />when draining precipitation from the secondary containment area. <br />After visual observation for contamination, precipitation is removed under supervision. <br />Appendix C contains the specific form and the standard operating procedure for inspecting, <br />draining, and documenting rainwater accumulation in secondary containment areas. <br />Completed Diked Area Drainage Report Forms are kept in the Pit Files at the main office. <br />17.4 Buried Metallic Storage Tanks [112.8(c)(4)] <br />Not Applicable - The Facility does not have buried metallic storage tanks.