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Pep Boys #710 <br />accumulated liquid out of the system to the soil, ground water, or surface water at any <br />time during the use of the tank system; The secondary containments for the <br />tanks(secondary or outer tanks) are designed to prevent migration of wastes into the <br />soil, groundwater and surface water. The tanks are double walled. <br />(2) capable of detecting and collecting releases and accumulated liquids until the <br />collected material is removed. The tanks are checked daily for leaks by Pep Boys <br />employees, and an inspection log is kept. <br />(c) To meet the requirements of subsection (b) of this section, secondary containment systems <br />shall be at a minimum: <br />(1) constructed of or lined with materials that are compatible with the waste(s) to be <br />placed in the tank system and shall have sufficient strength and thickness to prevent <br />failure due to pressure gradients (including static head and external hydrological <br />forces), physical contact with the waste to which they are exposed, climatic conditions, <br />the stress of installation, and the stress of daily operation (including stresses from <br />nearby vehicular traffic); The secondary containment is compatible with the wastes <br />stored in the tanks. The tanks are double walled. <br />(2) placed on a foundation or base capable of providing support to the secondary <br />containment system and resistance to pressure gradients above and below the system <br />and capable of preventing failure due to settlement, compression, or uplift; The <br />foundations are reinforced concrete capable of providing adequate support to the <br />tanks. <br />(3) provided with a leak detection system that is designed and operated so that it will <br />detect the failure of either the primary and secondary containment structure or any <br />release of hazardous waste or accumulated liquid in the secondary containment <br />system within 24 hours, or at the earliest practicable time if the existing detection <br />technology or site conditions will not allow detection of a release within 24 hours; The <br />tanks are checked daily for leaks by Pep Boys employees, and an inspection log is kept. <br />(4) sloped or otherwise designed or operated to drain and remove liquids resulting <br />from leaks, spills, or precipitation. Spilled or leaked waste and accumulated <br />precipitation shall be removed from the secondary containment system within 24 <br />hours, or in as timely a manner as is possible to prevent harm to human health or the <br />environment, if removal of the released waste or accumulated precipitation cannot be <br />accomplished within 24 hours. The tanks are checked daily by Pep Boys employees and <br />an inspection log is kept. Any accumulated liquids are removed immediately. <br />12 <br />