South Carolina Code of Regulations › Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL › Subchapter 61-79 - Hazardous Waste Management Regulations › Part 61-79.265 - INTERIM STATUS STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES › Subpart J - TANKS › Section 61-79.265.J.192 - Design and installation of new tank systems or components

Current through Register Vol. 48, No. 6, June 28, 2024
(a) Owners or
				  operators of new tank systems or components must ensure that the foundation,
				  structural support, seams, connections, and pressure controls (if applicable)
				  are adequately designed and that the tank system has sufficient structural
				  strength, compatibility with the waste(s) to be stored or treated, and
				  corrosion protection so that it will not collapse, rupture, or fail. The owner
				  or operator must obtain a written assessment reviewed and certified by a
				  qualified Professional Engineer in accordance with 270.11(d) attesting that the
				  system has sufficient structural integrity and is acceptable for the storing
				  and treating of hazardous waste. This assessment must include the following
				  information:
(1) Design standard(s) according
				  to which the tank(s) and ancillary equipment is or will be
				  constructed.
(2) Hazardous
				  characteristics of the waste(s) to be handled.
(3) For new tank systems or components in
				  which the external shell of a metal tank or any external metal component of the
				  tank system is or will be in contact with the soil or with water, a
				  determination by a corrosion expert of:
(i)
				  Factors affecting the potential for corrosion, including but not limited to:
(A) Soil moisture content;
(B) Soil pH;
(C) Soil sulfides level;
(D) Soil resistivity;
(E) Structure to soil potential;
(F) Influence of nearby underground metal
				  structures (e.g. piping);
(G) Stray
				  electric current; and
(H) Existing
				  corrosion-protection measures (e.g. coating, cathodic protection),
				  and
(ii) The type and
				  degree of external corrosion protection that are needed to ensure the integrity
				  of the tank system during the use of the tank system or component, consisting
				  of one or more of the following:
(A)
				  Corrosion-resistant materials of construction such as special alloys,
				  fiberglass-reinforced plastic.
(B)
				  Corrosion-resistant coating (such as epoxy, fiberglass) with cathodic
				  protection (e.g. impressed current or sacrificial anodes); and
(C) Electrical isolation devices such as
				  insulating joints and flanges.
Note: The practices described in the National Association
					 of Corrosion Engineers (NACE) standard, Recommended Practice (RP-02-85) Control
					 of External Corrosion on Metallic Buried, Partially Buried, or Submerged Liquid
					 Storage Systems, and the American Petroleum Institute (API) Publication 1632,
					 Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems,
					 may be used, where applicable, as guidelines in providing corrosion protection
					 for tank systems.
(4) For underground tank system components
				  that are likely to be affected by vehicular traffic a determination of design
				  or operational measures that will protect the tank system against potential
				  damage; and
(5) Design
				  considerations to ensure that:
(i) Tank
				  foundations will maintain the load of a full tank;
(ii) Tank systems will be anchored to prevent
				  flotation or dislodgment where the tank system is placed in a saturated zone,
				  or is located within a seismic fault zone; and
(iii) Tank systems will withstand the effects
				  of frost heave.