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0 01 <br /> (2) if the tank system is exposed to precipitation, the secondary containment system must have sufficient <br /> capacity, in addition to that required in subsection (j)(1) of this section, to contain run-on and infiltration from <br /> a 25-year, 24-hour rainfall event; <br /> (3) tank system secondary containment shall be provided with a leak detection system that is designed and <br /> operated so that it will detect either the failure of the primary and secondary containment structure or any <br /> release of hazardous waste or accumulated liquid in the secondary containment system within 24 hours,or at <br /> the earliest practicable time if the existing detection technology or site conditions will not allow detection of a <br /> release within 24 hours. <br /> (k) The tank system assessment shall Include all of the following information: <br /> (1) tank configuration (i.e., horizontal, vertical), material of construction, and gross capacity (in gallons); <br /> (2) design standard(s), if available, according to which the tank and ancillary equipment were or will be <br /> constructed and all of the following information: <br /> (A) material of construction; <br /> (B) material thickness and the method used to determine the thickness; <br /> (C) description of tank system piping (material, diameter); <br /> (D) description of any internal and external pumps; and <br /> (E) sketch or drawing of tank including dimensions. <br /> (3) documented age of the tank system (if tank was previously used), if available, (otherwise, an estimate of <br /> the age); <br /> (4) description and evaluation of any leak detection equipment; <br /> (5) description and evaluation of any corrosion protection equipment, devices, or material; <br /> (6) description and evaluation of any spill prevention or overfill equipment; <br /> (7) description and evaluation of secondary containment for the tank system (secondary containment must <br /> meet minimum standards as specified in subsections (j)(1) through (j)(3) of this section) including applicable <br /> secondary containment for ancillary equipment as required in subsection 66265.193(f); <br /> (8) hazardous characteristics of the waste(s) that have been or will be handled; <br /> (9) prior to placing a new tank system or component in use, an independent,qualified installation inspector or <br /> an independent, qualified, professional engineer, registered in California, either of whom is trained and <br /> experienced in the proper installation of tank systems, shall inspect the system or component for the presence <br /> of any of the following items and document in writing the results of the inspection: <br /> (A) weld cracks or breaks; <br /> (B) scrapes of protective coatings; <br /> (C) corrosion; <br /> (D) any structural damage or inadequate construction or installation such as cracks, punctures, damaged <br /> fittings. All discrepancies shall be documented in the assessment and remedied before the tank system is <br /> placed in use. <br /> (10) all new tanks and ancillary equipment shall be tested for tightness prior to being placed in use. The <br /> results of the test(s) shall be documented in this assessment. Tank system integrity or leak test requirements <br />