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Ch. 15,Art. 10-3
<br /> of subsections(c)(1)-(c)(2)(13)2. and amendment of Note filed 9-8-2006; operative 10-8-2006(Register 2006, No. 36).
<br /> §66266.192. Design and Installation of New Tank Systems or Components.
<br /> (a)Owners or operators of new tank systems or components shall ensure that the foundation, structural
<br /> support, seams,connections, and pressure controls(if applicable)are adequately designed and that the tank system
<br /> has sufficient structural strength, compatibility with the waste(s)to be transferred,stored or treated,and corrosion
<br /> protection so that it will not collapse, rupture, or fail. The owner or operator shall obtain a written assessment
<br /> reviewed and certified by an independent,qualified, professional engineer, registered in California in accordance with
<br /> section 66270.11(d)attesting that the system has sufficient structural integrity, is acceptable for the transferring,
<br /> storing and treating of hazardous waste, and that the tanks and containment system are suitably designed to achieve
<br /> the requirements of this article.This assessment shall be obtained prior to placing the tank system in service, and
<br /> shall be kept on file at the facility.This assessment shall also include, at a minimum,the following information:
<br /> (1)design standard(s)according to which the tank(s)and ancillary equipment are or will be constructed;
<br /> (2)hazardous characteristics of the waste(s)to be handled;
<br /> (3)for new tank systems or components in which the external shell of a metal tank or any external metal
<br /> component of the tank system is or will be in contact with the soil or with water,a determination by a corrosion expert
<br /> of:
<br /> (A)factors affecting the potential for corrosion, including but not limited to
<br /> 1. soil moisture content;
<br /> 2. soil pH;
<br /> 3.soil sulfides level;
<br /> 4. soil resistivity;
<br /> 5. structure to soil potential;
<br /> 6. influence of nearby underground metal structures(e.g., piping);
<br /> 7. stray electric current; and,
<br /> 8.existing corrosion-protection measures(e.g., coating,cathodic protection),and
<br /> (B)the type and degree of external corrosion protection that are needed to ensure the integrity of the tank
<br /> system during the use of the tank system or component, consisting of one or more of the following:
<br /> 1. corrosion-resistant materials of construction such as special alloys or fiberglass-reinforced plastic;
<br /> 2. corrosion-resistant coating(such as epoxy or fiberglass)with cathodic protection(e.g., impressed current
<br /> or sacrificial anodes); and
<br /> 3. electrical isolation devices such as insulating joints and flanges;
<br /> (4)for underground tank system components that are likely to be affected by vehicular traffic, a
<br /> determination of design or operational measures that will protect the tank system against potential damage; and
<br /> (5)design considerations to ensure that:
<br /> (A)tank foundations will maintain the load of a full tank;
<br /> (B)tank systems will be anchored to prevent flotation or dislodgement where the tank system is placed in a
<br /> saturated zone,or is located within a seismic fault zone; and
<br /> (C)tank systems will withstand the effects of frost heave.
<br /> (b)The owner or operator of a new tank system shall ensure that proper handling procedures are adhered to
<br /> in order to prevent damage to the system during installation. Prior to covering,enclosing, or placing a new tank
<br /> system or component in use, an independent,qualified installation inspector or an independent, qualified,
<br /> professional engineer, registered in California, either of whom is trained and experienced in the proper installation of
<br /> tank systems, shall inspect the system or component for the presence of any of the following items:
<br /> (1)weld breaks;
<br /> (2)punctures;
<br /> (3)scrapes of protective coatings;
<br /> (4)cracks;
<br /> (5)corrosion;
<br /> (6)other structural damage or inadequate construction or installation.All discrepancies shall be remedied
<br /> before the tank system is covered,enclosed, or placed in use.
<br /> (c) New tank systems or components and piping that are placed underground and that are backfilled shall be
<br /> provided with a backfill material that is a noncorrosive,porous, homogeneous substance and that is carefully installed
<br /> so that the backfill is placed completely around the tank and compacted to ensure that the tank and piping are fully
<br /> and uniformly supported.
<br /> (d)All new tanks and ancillary equipment shall be tested for tightness prior to being covered,enclosed or
<br /> placed in use. If a tank system is found not to be tight, all repairs necessary to remedy the leak(s)in the system shall
<br /> be performed prior to the tank system being covered, enclosed, or placed in use.
<br /> (e)Ancillary equipment shall be supported and protected against physical damage and excessive stress due
<br /> to settlement,vibration,expansion or contraction.
<br /> (f)The owner or operator shall provide the type and degree of corrosion protection necessary, based on the
<br /> information provided under subsection(a)(3)of this section,to ensure the integrity of the tank system during use of
<br /> the tank system.The installation of a corrosion protection system that is field fabricated shall be supervised by an
<br /> independent corrosion expert to ensure proper installation.
<br /> (g)The owner or operator shall obtain and keep on file at the facility written statements by those persons
<br /> required to certify the design of the tank system and supervise the installation of the tank system in accordance with
<br /> Unofficial Title 22 0 2005 State of California,all rights reserved.May not be commercially reproduced or sold. 6/9/08
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